[android-developers] Re: Null Pointer Exception In Method Boolean.Org.Json.Jsonobject Do in background async task
>
> I get this error End of input at character 0 of
> after i run code below as you mention before
>
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
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[android-developers] Re: Null pointer exception in sending SMS..
Check your logcat. It'll give you very good log information where exactly (e.g. on which exact line) you are getting the null pointer exception. - Ali Chousein Weather-Buddy http://weatherbuddy.blogspot.com | http://twitter.com/weather_buddy Geo-Filtered Assistant http://geo-filtered-assistant.blogspot.com https://marketplace.cisco.com/apphq/store/products/994 -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Null pointer exception in sending SMS..
Provide the logcat/error. On Tue, Nov 29, 2011 at 3:18 PM, Ali Chousein ali.chous...@gmail.comwrote: Check your logcat. It'll give you very good log information where exactly (e.g. on which exact line) you are getting the null pointer exception. - Ali Chousein Weather-Buddy http://weatherbuddy.blogspot.com | http://twitter.com/weather_buddy Geo-Filtered Assistant http://geo-filtered-assistant.blogspot.com https://marketplace.cisco.com/apphq/store/products/994 -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- Thanks Regards Rakesh Kumar Jha Android Developer, Trainer and Mentor Bangalore (O) +918030274295 (R) +919886336619 -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Null pointer exception in sending SMS..
0. Read the docs: http://developer.android.com/reference/android/telephony/gsm/SmsManager.html 1. Check the official example: http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/os/index.html 2.Set the second argument to null in sms.sendTextMessage(phoneNumber, , msg, sentPI, deliveredPI);3. Be sure that msg is not empty. (TextUtils.isEmpty is helpfull) 4. Be sure you have the android.permission.SEND_SMS permission 4. How would you like to unregister that broadcast receiver? 5. Improve your skills Yeah and you can not live without logcat in the android world: http://developer.android.com/guide/developing/tools/logcat.html On 29 November 2011 11:00, Rocky rkjhaw1...@gmail.com wrote: Provide the logcat/error. On Tue, Nov 29, 2011 at 3:18 PM, Ali Chousein ali.chous...@gmail.com wrote: Check your logcat. It'll give you very good log information where exactly (e.g. on which exact line) you are getting the null pointer exception. - Ali Chousein Weather-Buddy http://weatherbuddy.blogspot.com | http://twitter.com/weather_buddy Geo-Filtered Assistant http://geo-filtered-assistant.blogspot.com https://marketplace.cisco.com/apphq/store/products/994 -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- Thanks Regards Rakesh Kumar Jha Android Developer, Trainer and Mentor Bangalore (O) +918030274295 (R) +919886336619 -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: null pointer exception
* connectivity.getActiveNetworkInfo() returns null if there is no connection. Hence when you call .isConnected() on that, it throws null pointer exception.* No, that is not it... He checks to make sure that connectivity.getActiveNetworkInfo() is not null before he calls the other methods... What does logcat say exactly regarding the null pointer exception? Specifically look for a caused by line... Also, I would probably do something like this, but that is just coding preferences (though, it might help you get better info from logcat on the cause of the error): NetworkInfo netInfo = connectivity.getActiveNetworkInfo(); boolean valid = netInfo != null netInfo.isAvailable() netInfo.isConnected(); Have you made sure that your connectivity variable is not null? Thanks, Justin Anderson MagouyaWare Developer http://sites.google.com/site/magouyaware On Tue, Jul 5, 2011 at 10:33 PM, Sourav Howlader sourav.howla...@gmail.comwrote: Hi vani, connectivity.getActiveNetworkInfo() returns null if there is no connection. Hence when you call .isConnected() on that, it throws null pointer exception. Regards, Sourav -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: null pointer exception
Hi vani, connectivity.getActiveNetworkInfo() returns null if there is no connection. Hence when you call .isConnected() on that, it throws null pointer exception. Regards, Sourav -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Null Pointer Exception on accessing value of EditText
Thanks for the help TreKing and Gaurav! On May 21, 12:14 am, gaurav gupta gaurav.gupta...@gmail.com wrote: First set any value in edittext then u can get value . 1. EditText IPInput = (EditText) findViewById(R.id.ip); iPinput.setText(Value inserted successfully); 2. IPInput.getText().toString(); System.out.println(ip); 3. System.out.println(IPInput.getText().toString()); On Sat, May 21, 2011 at 12:40 AM, TreKing treking...@gmail.com wrote: On Thu, May 19, 2011 at 4:16 PM, Ankur Kumar specialan...@gmail.comwrote: I am getting java.lang.NullPointerException at step 3 in my code. Have not been able to figure this out. 1 - Use your debugger. 2 - Figure out what is null. 3 - Make it not null. --- -- TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Null Pointer exception in Location Manager
Hi,, Finally i got the solution..! The mistakes are 1) I am not assign port to telnet 2) Add uses permission for mock location..now i got latitude.. Thanks Warm Regards, Gold On Sep 29, 2:11 am, TreKing treking...@gmail.com wrote: On Tue, Sep 28, 2010 at 4:09 PM, Gold thangadura...@gmail.com wrote: hi.. No , still i am checking, Now while loading home screen itself thorw the error The application stopped unexpectly in log also i get same error null pointer exception thanks warm regards, gold A) Please respond to the group B) Again, use your debugger to step through your code around where it's throwing the exception. This should tell you EXACTLY what's null. The rest of us are not going to be able to debug your program for you like this. - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Null Pointer exception in Location Manager
Hi..Sorry,
Herewith I attached Logcat trace..!
09-29 02:09:42.266: DEBUG/AndroidRuntime(2979):
AndroidRuntime START
09-29 02:09:42.276: DEBUG/AndroidRuntime(2979): CheckJNI is ON
09-29 02:09:42.536: DEBUG/AndroidRuntime(2979): --- registering native
functions ---
09-29 02:09:43.456: DEBUG/AndroidRuntime(2979): Shutting down VM
09-29 02:09:43.456: DEBUG/dalvikvm(2979): Debugger has detached;
object registry had 1 entries
09-29 02:09:43.486: INFO/AndroidRuntime(2979): NOTE: attach of thread
'Binder Thread #3' failed
09-29 02:09:44.056: DEBUG/AndroidRuntime(2987):
AndroidRuntime START
09-29 02:09:44.056: DEBUG/AndroidRuntime(2987): CheckJNI is ON
09-29 02:09:44.286: DEBUG/AndroidRuntime(2987): --- registering native
functions ---
09-29 02:09:45.306: INFO/ActivityManager(59): Starting activity:
Intent { act=android.intent.action.MAIN
cat=[android.intent.category.LAUNCHER] flg=0x1000
cmp=com.sample.test/.Starter }
09-29 02:09:45.476: DEBUG/AndroidRuntime(2987): Shutting down VM
09-29 02:09:45.526: DEBUG/dalvikvm(2987): Debugger has detached;
object registry had 1 entries
09-29 02:09:45.606: INFO/AndroidRuntime(2987): NOTE: attach of thread
'Binder Thread #3' failed
09-29 02:09:45.616: INFO/ActivityManager(59): Start proc
com.sample.test for activity com.sample.test/.Starter: pid=2995
uid=10040 gids={3003}
09-29 02:09:46.466: INFO/ActivityManager(59): Starting activity:
Intent { cmp=com.sample.test/.Home }
09-29 02:09:46.596: WARN/GpsLocationProvider(59): Duplicate add
listener for uid 10040
09-29 02:09:46.606: DEBUG/AndroidRuntime(2995): Shutting down VM
09-29 02:09:46.606: WARN/dalvikvm(2995): threadid=1: thread exiting
with uncaught exception (group=0x4001d800)
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): FATAL EXCEPTION: main
09-29 02:09:46.636: ERROR/AndroidRuntime(2995):
java.lang.RuntimeException: Unable to start activity
ComponentInfo{com.sample.test/com.sample.test.Home}:
java.lang.NullPointerException
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
2663)
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:
2679)
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): at
android.app.ActivityThread.access$2300(ActivityThread.java:125)
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): at
android.os.Handler.dispatchMessage(Handler.java:99)
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): at
android.os.Looper.loop(Looper.java:123)
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): at
android.app.ActivityThread.main(ActivityThread.java:4627)
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): at
java.lang.reflect.Method.invokeNative(Native Method)
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): at
java.lang.reflect.Method.invoke(Method.java:521)
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): at
com.android.internal.os.ZygoteInit
$MethodAndArgsCaller.run(ZygoteInit.java:868)
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): at
dalvik.system.NativeStart.main(Native Method)
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): Caused by:
java.lang.NullPointerException
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): at
com.sample.test.Home.onCreate(Home.java:38)
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:
1047)
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
2627)
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): ... 11 more
09-29 02:09:46.646: WARN/ActivityManager(59): Force finishing
activity com.sample.test/.Home
09-29 02:09:47.156: WARN/ActivityManager(59): Activity pause timeout
for HistoryRecord{44095e38 com.sample.test/.Home}
09-29 02:09:57.664: WARN/ActivityManager(59): Activity destroy timeout
for HistoryRecord{44089b28 com.sample.test/.Starter}
09-29 02:09:57.675: WARN/ActivityManager(59): Activity destroy timeout
for HistoryRecord{44095e38 com.sample.test/.Home}
09-29 02:10:01.025: INFO/Process(2995): Sending signal. PID: 2995 SIG:
9
09-29 02:10:01.045: INFO/ActivityManager(59): Process com.sample.test
(pid 2995) has died.
09-29 02:10:01.045: WARN/GpsLocationProvider(59): Unneeded remove
listener for uid 1000
09-29 02:10:01.105: WARN/InputManagerService(59): Window already
focused, ignoring focus gain of:
com.android.internal.view.iinputmethodclient$stub$pr...@43f49530
On Sep 29, 1:36 am, TreKing treking...@gmail.com wrote:
On Tue, Sep 28, 2010 at 3:33 PM, Gold thangadura...@gmail.com wrote:
I tried but it will show Null pointer exception.
Where? What's the stack trace?
Re: [android-developers] Re: Null Pointer exception in Location Manager
On Tue, Sep 28, 2010 at 3:41 PM, Gold thangadura...@gmail.com wrote: 09-29 02:09:46.636: ERROR/AndroidRuntime(2995): Caused by: java.lang.NullPointerException 09-29 02:09:46.636: ERROR/AndroidRuntime(2995): at com.sample.test.Home.onCreate(Home.java:38) Now which part of your code is at line 38? - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Null Pointer exception in Location Manager
Hi..
While clicking the button1 that is
redbtn.setOnClickListener(new
OnClickListener()
{
@Override
public void onClick(View v)
{
Toast.makeText(getBaseContext(),
Latitude : +
latitude.toString(), Toast.LENGTH_SHORT).
show();
}
});
Here it will show the exception
On Sep 29, 1:45 am, TreKing treking...@gmail.com wrote:
On Tue, Sep 28, 2010 at 3:41 PM, Gold thangadura...@gmail.com wrote:
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): Caused by:
java.lang.NullPointerException
09-29 02:09:46.636: ERROR/AndroidRuntime(2995): at
com.sample.test.Home.onCreate(Home.java:38)
Now which part of your code is at line 38?
-
TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago
transit tracking app for Android-powered devices
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Re: [android-developers] Re: Null Pointer exception in Location Manager
On Tue, Sep 28, 2010 at 3:49 PM, Gold thangadura...@gmail.com wrote: While clicking the button1 that is Step through the debugger through this point and inspect the values of your variables in the click listener. This will tell you exactly what's null in there. - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Null Pointer exception in Location Manager
Hi,,
If i click redbutton I need to display latitude
if i click greenbutton i need to display longitude
How can i did that..! please give any solution..!
On Sep 29, 1:44 am, Kostya Vasilyev kmans...@gmail.com wrote:
Your code doesn't seem to assign any values to redbtn and greenbtn.
Then you call methods on these objects - perhaps they are still Null at that
point?
--
Kostya Vasilyev --http://kmansoft.wordpress.com
29.09.2010 0:34 пользователь Gold thangadura...@gmail.com написал:
Hi..All,
I need to disply current Position latitude and
logintude .. I tried but it will show Null pointer exception.. here
with i attached my code... please help me to solve this problem..
I run this application on android emulator
import android.app.Activity;
import android.app.Dialog;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.location.LocationProvider;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class Home extends Activity
{
private Button btn1;
private Button btn2;
private Button btn3;
private LocationListener myLocationListener;
private LocationManager myLocationManager;
public String latitude;
public String longitude;
/** Called when the activity is first created. */
�...@override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.home);
myLocationManager =
(LocationManager)getSystemService(Context.LOCATION_SERVICE);
myLocationListener = new MyLocationListener();
myLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,
1, 1, myLocationListener);
latitude=String.valueOf(myLocationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER).getLatitude());
longitude =
String.valueOf(myLocationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER).getLongitude());
btn1= (Button)findViewById(R.id.btn1);
btn2= (Button)findViewById(R.id.btn2);
btn3= (Button)findViewById(R.id.btn3);
redbtn.setOnClickListener(new OnClickListener()
{
�...@override
public void onClick(View v)
{
Toast.makeText(getBaseContext(), Latitude :
+
latitude.toString(), Toast.LENGTH_SHORT).show();
}
});
greenBtn.setOnClickListener(new OnClickListener()
{
�...@override
public void onClick(View v) {
// TODO Auto-generated method stub
Toast.makeText(getBaseContext(), Longitude:
+
longitude.toString(), Toast.LENGTH_SHORT).show();
}
});
cancelBtn.setOnClickListener(new OnClickListener() {
�...@override
public void onClick(View v)
{
// TODO Auto-generated method stub
Toast.makeText(Home.this, NO gps,
Toast.LENGTH_SHORT).show();
}
});
}
public class MyLocationListener implements LocationListener
{
public void onLocationChanged(Location argLocation)
{
if(argLocation != null)
{
latitude =
String.valueOf(argLocation.getLatitude());
longitude =
String.valueOf(argLocation.getLongitude());
}
}
public void onProviderDisabled(String provider)
{
}
public void onProviderEnabled(String provider)
{
}
public void onStatusChanged(String provider, int status,
Bundle
arg2)
{
}
};
}
Thanks Warm Regards,
gold
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Re: [android-developers] Re: Null Pointer exception in Location Manager
On Tue, Sep 28, 2010 at 4:00 PM, Gold thangadura...@gmail.com wrote: If i click redbutton I need to display latitude if i click greenbutton i need to display longitude OK. Does this mean you fixed your null pointer problem? How can i did that..! please give any solution..! Do what? Solution to what? Clicking buttons? Getting lat / long? Displaying to where? On a map? On the screen? On a button? In the logs? - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Null Pointer exception in Location Manager
On Tue, Sep 28, 2010 at 4:09 PM, Gold thangadura...@gmail.com wrote: hi.. No , still i am checking, Now while loading home screen itself thorw the error The application stopped unexpectly in log also i get same error null pointer exception thanks warm regards, gold A) Please respond to the group B) Again, use your debugger to step through your code around where it's throwing the exception. This should tell you EXACTLY what's null. The rest of us are not going to be able to debug your program for you like this. - TreKing http://sites.google.com/site/rezmobileapps/treking - Chicago transit tracking app for Android-powered devices -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Null Pointer Exception with getIntent().Extras....
thanks is working now, it was exactly what you said, I was looking into Intent and put/get Extras... I had no clue of this PendingIntent behavior. On Jan 9, 10:06 pm, Mark Murphy mmur...@commonsware.com wrote: Albert wrote: Hi, Can someone see what I am doing wrong here, when I try to get the extras I sent on my intent it always returns null Intent activityIntent = new Intent(context, TopImage.class); activityIntent.putStringArrayListExtra(com.mobile.dev.LIST, mStringList); //mStringList is not null for sure // com.mobile.dev.LIST my package prefix+keyname then to extract the data: //this is done in onCreate() ArrayListString t = new ArrayListString(); t = getIntent().getStringArrayListExtra(com.mobile.dev.LIST); // it is always returns null, I get an null pointer exception as soon as I use t. The intent is sent from a widget which launches the activity from which i am trying to get this Extra... If you are wrapping this in a PendingIntent, that may be the source of your difficulty. Make sure your previous PendingIntent is canceled before creating a new one with a new extra. -- Mark Murphy (a Commons Guy)http://commonsware.com|http://twitter.com/commonsguy Android Training in US: 8-12 February 2010:http://bignerdranch.com -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Null pointer exception
That was it! I took out the startManagingCursor() and it worked
fine. My next question is what should I do to handle the life cycle
of my cursor? Should I close it outside the switch statement?
On Jan 5, 5:41 pm, Vladimir vladimir.funti...@gmail.com wrote:
What do you think about this:
1. Cursor created in onContextItemSelected() is null (for some reason)
2. Since its lifecycle is managed by the activity (startManagingCursor
(c)), it tries to release it when the activity is stopped (when the
new intent is launched)
3. It doesn't expect managed cursor to be null and crashes (at
android.app.Activity.performStop(Activity.java:3604))
Does that make sense? I have little idea about how this cursor
management works, but I would do the following:
1. Try removing startManagingCursor() calls to see if these are
related
2. Double check if the cursor is null
3. Take a look inside Android source and specifically Activity.java:
3604
Just a guess :)
On Jan 5, 4:02 pm, JasonMP hyperje...@gmail.com wrote:
Ok, I tried gino's idea with initializing my arrays differently. I
also changed there names so that they did not share a name with any
other arrays in my app: Did not work.
I also tried calling to static variables instead of passing variables
between classes with intents: This also did not work.
I can't determine which line of code causes the error. The logcat
does not give me a pointer to anything in my app at all. I tried to
narrow it down with breakpoints and logging and what I found is that
it runs through all of my code without a hitch, and then once its done
it throws the exception.
And again the exception only happens when I call the intent from a
contextMenu.
On Jan 1, 2:56 am, Wiebbe wie...@gmail.com wrote:
Shouldnt you check if the bundle is null or not? Try to loop through
it when you get there from a onContextItemSelected event. I'm guessing
some value somewhere is null when it should be instantiated. Perhaps
the intent is started quicker or without the bundle somehow so you get
a nullpointer exception?
On 31 dec 2009, 15:57, JasonMP hyperje...@gmail.com wrote:
yes, Select.class is another one of my files. throughout my app there
are a few different calls to it, all done the same way i.e. Intent i
= new Intent(this, Select.class); startActivity(i);
No where in Select.class do I make a call to start Select.class or
Sheet.class. When its done it calls finish();
in the onCreate() of Select.class I grab the extras from the invoking
class with this line of code:
public class Select extends ListActivity{
DBAdapter db = new DBAdapter(this);
String slotName = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
db.open();
ListView list = getListView();
View v = View.inflate(this, R.layout.list_header,
null);
list.addHeaderView(v, null, false);
name =
this.getIntent().getStringExtra(DBAdapter.KEY_NAME);
}
Could it be something in the .getIntent() method? or
the .getStringExtra()?
On Dec 30, 7:19 pm, Stephen @ gmail.com sdickey2...@gmail.com
wrote:
Now that I understand your intent creation a little better, and I see
that
the intent you are creating is unique from the class in which the code
exists, I am not quite sure how it could be an infinite loop in the
(immediate) way I was thinking.
Reading this code
Intent i = new Intent(this, Select.class);
I have to start thinking there's something wrong with this. I tried
to look
up the Select class on the android developers site, and couldn't
find it.
Is that a class from another of your files? I guess I would wonder
if the
code being invoked there, is somehow causing this class to be
invoked, thus
causing some kind of loop. I would grep for any reference to your
Sheet
class, from anywhere else in your code, and that would likely be
suspect.
In general, the below is kind of a side topic, to maybe help you with
generic debugging.
All the Best, Steve.
*Ok... the only thing I can think to really help you is to start
taking
advantage of logging. In your import list, I see you don't include
the
logger code, so maybe you can give this a shot.
1) in the import list
import android.util.Log;
2) and throughout your code
Log.d( TAG, DebugText );
where TAG is a string that is unique to you, and DebugText is
something
useful to identify the part of the program you're interested in.
*
On Wed, Dec 30, 2009 at 11:32 AM, JasonMP hyperje...@gmail.com
wrote:
Ok, I'm suddenly very curious by
[android-developers] Re: Null pointer exception
I do the management in onStop, for my cursor which supplies the data
needed by a ListView (which means the cursor has to be open whenever
the activity is displayed).
@Override
protected void onStop() {
super.onStop();
if(db!=null){
if(db.isOpen()){
db.close();
}
}
if(mCursor!=null){
if(!mCursor.isClosed()){
mCursor.close();
}
}
}
On Jan 6, 7:25 am, JasonMP hyperje...@gmail.com wrote:
That was it! I took out the startManagingCursor() and it worked
fine. My next question is what should I do to handle the life cycle
of my cursor? Should I close it outside the switch statement?
On Jan 5, 5:41 pm, Vladimir vladimir.funti...@gmail.com wrote:
What do you think about this:
1. Cursor created in onContextItemSelected() is null (for some reason)
2. Since its lifecycle is managed by the activity (startManagingCursor
(c)), it tries to release it when the activity is stopped (when the
new intent is launched)
3. It doesn't expect managed cursor to be null and crashes (at
android.app.Activity.performStop(Activity.java:3604))
Does that make sense? I have little idea about how this cursor
management works, but I would do the following:
1. Try removing startManagingCursor() calls to see if these are
related
2. Double check if the cursor is null
3. Take a look inside Android source and specifically Activity.java:
3604
Just a guess :)
On Jan 5, 4:02 pm, JasonMP hyperje...@gmail.com wrote:
Ok, I tried gino's idea with initializing my arrays differently. I
also changed there names so that they did not share a name with any
other arrays in my app: Did not work.
I also tried calling to static variables instead of passing variables
between classes with intents: This also did not work.
I can't determine which line of code causes the error. The logcat
does not give me a pointer to anything in my app at all. I tried to
narrow it down with breakpoints and logging and what I found is that
it runs through all of my code without a hitch, and then once its done
it throws the exception.
And again the exception only happens when I call the intent from a
contextMenu.
On Jan 1, 2:56 am, Wiebbe wie...@gmail.com wrote:
Shouldnt you check if the bundle is null or not? Try to loop through
it when you get there from a onContextItemSelected event. I'm guessing
some value somewhere is null when it should be instantiated. Perhaps
the intent is started quicker or without the bundle somehow so you get
a nullpointer exception?
On 31 dec 2009, 15:57, JasonMP hyperje...@gmail.com wrote:
yes, Select.class is another one of my files. throughout my app there
are a few different calls to it, all done the same way i.e. Intent i
= new Intent(this, Select.class); startActivity(i);
No where in Select.class do I make a call to start Select.class or
Sheet.class. When its done it calls finish();
in the onCreate() of Select.class I grab the extras from the invoking
class with this line of code:
public class Select extends ListActivity{
DBAdapter db = new DBAdapter(this);
String slotName = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
db.open();
ListView list = getListView();
View v = View.inflate(this, R.layout.list_header,
null);
list.addHeaderView(v, null, false);
name =
this.getIntent().getStringExtra(DBAdapter.KEY_NAME);
}
Could it be something in the .getIntent() method? or
the .getStringExtra()?
On Dec 30, 7:19 pm, Stephen @ gmail.com sdickey2...@gmail.com
wrote:
Now that I understand your intent creation a little better, and I
see that
the intent you are creating is unique from the class in which the
code
exists, I am not quite sure how it could be an infinite loop in the
(immediate) way I was thinking.
Reading this code
Intent i = new Intent(this, Select.class);
I have to start thinking there's something wrong with this. I
tried to look
up the Select class on the android developers site, and couldn't
find it.
Is that a class from another of your files? I guess I would wonder
if the
code being invoked there, is somehow causing this class to be
invoked, thus
causing some kind of loop. I would grep for any reference to your
Sheet
class, from anywhere else in your code, and that would likely be
suspect.
In general,
[android-developers] Re: Null pointer exception
Hey, with eclipse, you can simply put a null-pointer-exception- breakpoint, then debug your program and eclipse will stop there, where the nullpointer creates this exception. Greetings, Martin -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Null pointer exception
Ok, I tried gino's idea with initializing my arrays differently. I
also changed there names so that they did not share a name with any
other arrays in my app: Did not work.
I also tried calling to static variables instead of passing variables
between classes with intents: This also did not work.
I can't determine which line of code causes the error. The logcat
does not give me a pointer to anything in my app at all. I tried to
narrow it down with breakpoints and logging and what I found is that
it runs through all of my code without a hitch, and then once its done
it throws the exception.
And again the exception only happens when I call the intent from a
contextMenu.
On Jan 1, 2:56 am, Wiebbe wie...@gmail.com wrote:
Shouldnt you check if the bundle is null or not? Try to loop through
it when you get there from a onContextItemSelected event. I'm guessing
some value somewhere is null when it should be instantiated. Perhaps
the intent is started quicker or without the bundle somehow so you get
a nullpointer exception?
On 31 dec 2009, 15:57, JasonMP hyperje...@gmail.com wrote:
yes, Select.class is another one of my files. throughout my app there
are a few different calls to it, all done the same way i.e. Intent i
= new Intent(this, Select.class); startActivity(i);
No where in Select.class do I make a call to start Select.class or
Sheet.class. When its done it calls finish();
in the onCreate() of Select.class I grab the extras from the invoking
class with this line of code:
public class Select extends ListActivity{
DBAdapter db = new DBAdapter(this);
String slotName = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
db.open();
ListView list = getListView();
View v = View.inflate(this, R.layout.list_header, null);
list.addHeaderView(v, null, false);
name =
this.getIntent().getStringExtra(DBAdapter.KEY_NAME);
}
Could it be something in the .getIntent() method? or
the .getStringExtra()?
On Dec 30, 7:19 pm, Stephen @ gmail.com sdickey2...@gmail.com
wrote:
Now that I understand your intent creation a little better, and I see that
the intent you are creating is unique from the class in which the code
exists, I am not quite sure how it could be an infinite loop in the
(immediate) way I was thinking.
Reading this code
Intent i = new Intent(this, Select.class);
I have to start thinking there's something wrong with this. I tried to
look
up the Select class on the android developers site, and couldn't find
it.
Is that a class from another of your files? I guess I would wonder if the
code being invoked there, is somehow causing this class to be invoked,
thus
causing some kind of loop. I would grep for any reference to your Sheet
class, from anywhere else in your code, and that would likely be suspect.
In general, the below is kind of a side topic, to maybe help you with
generic debugging.
All the Best, Steve.
*Ok... the only thing I can think to really help you is to start taking
advantage of logging. In your import list, I see you don't include the
logger code, so maybe you can give this a shot.
1) in the import list
import android.util.Log;
2) and throughout your code
Log.d( TAG, DebugText );
where TAG is a string that is unique to you, and DebugText is something
useful to identify the part of the program you're interested in.
*
On Wed, Dec 30, 2009 at 11:32 AM, JasonMP hyperje...@gmail.com wrote:
Ok, I'm suddenly very curious by your previous statement stephen about
the possibility of creating an infinite loop. Upon a little more
investigation I'm now getting errors all over the place...same
errorjust at different points in the app where I try to
startActivity(intent); As soon as the new activity receives focus is
crashes.
On Dec 30, 1:58 pm, JasonMP hyperje...@gmail.com wrote:
package com.mallet.dtool;
import android.app.AlertDialog;
import android.app.TabActivity;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.DialogInterface.OnClickListener;
import android.content.res.Configuration;
import android.database.Cursor;
import android.graphics.Color;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.AdapterView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import
[android-developers] Re: Null pointer exception
What do you think about this:
1. Cursor created in onContextItemSelected() is null (for some reason)
2. Since its lifecycle is managed by the activity (startManagingCursor
(c)), it tries to release it when the activity is stopped (when the
new intent is launched)
3. It doesn't expect managed cursor to be null and crashes (at
android.app.Activity.performStop(Activity.java:3604))
Does that make sense? I have little idea about how this cursor
management works, but I would do the following:
1. Try removing startManagingCursor() calls to see if these are
related
2. Double check if the cursor is null
3. Take a look inside Android source and specifically Activity.java:
3604
Just a guess :)
On Jan 5, 4:02 pm, JasonMP hyperje...@gmail.com wrote:
Ok, I tried gino's idea with initializing my arrays differently. I
also changed there names so that they did not share a name with any
other arrays in my app: Did not work.
I also tried calling to static variables instead of passing variables
between classes with intents: This also did not work.
I can't determine which line of code causes the error. The logcat
does not give me a pointer to anything in my app at all. I tried to
narrow it down with breakpoints and logging and what I found is that
it runs through all of my code without a hitch, and then once its done
it throws the exception.
And again the exception only happens when I call the intent from a
contextMenu.
On Jan 1, 2:56 am, Wiebbe wie...@gmail.com wrote:
Shouldnt you check if the bundle is null or not? Try to loop through
it when you get there from a onContextItemSelected event. I'm guessing
some value somewhere is null when it should be instantiated. Perhaps
the intent is started quicker or without the bundle somehow so you get
a nullpointer exception?
On 31 dec 2009, 15:57, JasonMP hyperje...@gmail.com wrote:
yes, Select.class is another one of my files. throughout my app there
are a few different calls to it, all done the same way i.e. Intent i
= new Intent(this, Select.class); startActivity(i);
No where in Select.class do I make a call to start Select.class or
Sheet.class. When its done it calls finish();
in the onCreate() of Select.class I grab the extras from the invoking
class with this line of code:
public class Select extends ListActivity{
DBAdapter db = new DBAdapter(this);
String slotName = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
db.open();
ListView list = getListView();
View v = View.inflate(this, R.layout.list_header, null);
list.addHeaderView(v, null, false);
name =
this.getIntent().getStringExtra(DBAdapter.KEY_NAME);
}
Could it be something in the .getIntent() method? or
the .getStringExtra()?
On Dec 30, 7:19 pm, Stephen @ gmail.com sdickey2...@gmail.com
wrote:
Now that I understand your intent creation a little better, and I see
that
the intent you are creating is unique from the class in which the code
exists, I am not quite sure how it could be an infinite loop in the
(immediate) way I was thinking.
Reading this code
Intent i = new Intent(this, Select.class);
I have to start thinking there's something wrong with this. I tried to
look
up the Select class on the android developers site, and couldn't find
it.
Is that a class from another of your files? I guess I would wonder if
the
code being invoked there, is somehow causing this class to be invoked,
thus
causing some kind of loop. I would grep for any reference to your Sheet
class, from anywhere else in your code, and that would likely be
suspect.
In general, the below is kind of a side topic, to maybe help you with
generic debugging.
All the Best, Steve.
*Ok... the only thing I can think to really help you is to start taking
advantage of logging. In your import list, I see you don't include the
logger code, so maybe you can give this a shot.
1) in the import list
import android.util.Log;
2) and throughout your code
Log.d( TAG, DebugText );
where TAG is a string that is unique to you, and DebugText is
something
useful to identify the part of the program you're interested in.
*
On Wed, Dec 30, 2009 at 11:32 AM, JasonMP hyperje...@gmail.com wrote:
Ok, I'm suddenly very curious by your previous statement stephen about
the possibility of creating an infinite loop. Upon a little more
investigation I'm now getting errors all over the place...same
errorjust at different points in the app where I try to
startActivity(intent); As soon as the new activity receives focus is
crashes.
On Dec 30, 1:58 pm, JasonMP
[android-developers] Re: Null pointer exception
yes, Select.class is another one of my files. throughout my app there
are a few different calls to it, all done the same way i.e. Intent i
= new Intent(this, Select.class); startActivity(i);
No where in Select.class do I make a call to start Select.class or
Sheet.class. When its done it calls finish();
in the onCreate() of Select.class I grab the extras from the invoking
class with this line of code:
public class Select extends ListActivity{
DBAdapter db = new DBAdapter(this);
String slotName = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
db.open();
ListView list = getListView();
View v = View.inflate(this, R.layout.list_header, null);
list.addHeaderView(v, null, false);
name = this.getIntent().getStringExtra(DBAdapter.KEY_NAME);
}
Could it be something in the .getIntent() method? or
the .getStringExtra()?
On Dec 30, 7:19 pm, Stephen @ gmail.com sdickey2...@gmail.com
wrote:
Now that I understand your intent creation a little better, and I see that
the intent you are creating is unique from the class in which the code
exists, I am not quite sure how it could be an infinite loop in the
(immediate) way I was thinking.
Reading this code
Intent i = new Intent(this, Select.class);
I have to start thinking there's something wrong with this. I tried to look
up the Select class on the android developers site, and couldn't find it.
Is that a class from another of your files? I guess I would wonder if the
code being invoked there, is somehow causing this class to be invoked, thus
causing some kind of loop. I would grep for any reference to your Sheet
class, from anywhere else in your code, and that would likely be suspect.
In general, the below is kind of a side topic, to maybe help you with
generic debugging.
All the Best, Steve.
*Ok... the only thing I can think to really help you is to start taking
advantage of logging. In your import list, I see you don't include the
logger code, so maybe you can give this a shot.
1) in the import list
import android.util.Log;
2) and throughout your code
Log.d( TAG, DebugText );
where TAG is a string that is unique to you, and DebugText is something
useful to identify the part of the program you're interested in.
*
On Wed, Dec 30, 2009 at 11:32 AM, JasonMP hyperje...@gmail.com wrote:
Ok, I'm suddenly very curious by your previous statement stephen about
the possibility of creating an infinite loop. Upon a little more
investigation I'm now getting errors all over the place...same
errorjust at different points in the app where I try to
startActivity(intent); As soon as the new activity receives focus is
crashes.
On Dec 30, 1:58 pm, JasonMP hyperje...@gmail.com wrote:
package com.mallet.dtool;
import android.app.AlertDialog;
import android.app.TabActivity;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.DialogInterface.OnClickListener;
import android.content.res.Configuration;
import android.database.Cursor;
import android.graphics.Color;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.AdapterView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.TabHost;
import android.widget.TableLayout;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.TabHost.OnTabChangeListener;
public class Sheet extends TabActivity{
@Override public void onConfigurationChanged(Configuration
newConfig)
{ super.onConfigurationChanged(newConfig); }
DBAdapter db = new DBAdapter(this);
static Long cRowId;
//Variable declaration
public static Integer tabState = 1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.sheet);
db.open();
//capture Tab4 elements
aList = (ListView) findViewById(R.id.alist);
aList.setOnItemClickListener(new OnItemClickListener(){
@Override
public void onItemClick(AdapterView? arg0, View
arg1, int arg2,
long arg3) {
Cursor c =
[android-developers] Re: Null pointer exception
This is bizarre.
It works fine from the OnItemClick() of my OnItemClickListener
attached to my ListView. Just not inside the onContextItemSelected.
*scratches head*
On Dec 31, 9:57 am, JasonMP hyperje...@gmail.com wrote:
yes, Select.class is another one of my files. throughout my app there
are a few different calls to it, all done the same way i.e. Intent i
= new Intent(this, Select.class); startActivity(i);
No where in Select.class do I make a call to start Select.class or
Sheet.class. When its done it calls finish();
in the onCreate() of Select.class I grab the extras from the invoking
class with this line of code:
public class Select extends ListActivity{
DBAdapter db = new DBAdapter(this);
String slotName = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
db.open();
ListView list = getListView();
View v = View.inflate(this, R.layout.list_header, null);
list.addHeaderView(v, null, false);
name = this.getIntent().getStringExtra(DBAdapter.KEY_NAME);
}
Could it be something in the .getIntent() method? or
the .getStringExtra()?
On Dec 30, 7:19 pm, Stephen @ gmail.com sdickey2...@gmail.com
wrote:
Now that I understand your intent creation a little better, and I see that
the intent you are creating is unique from the class in which the code
exists, I am not quite sure how it could be an infinite loop in the
(immediate) way I was thinking.
Reading this code
Intent i = new Intent(this, Select.class);
I have to start thinking there's something wrong with this. I tried to look
up the Select class on the android developers site, and couldn't find it.
Is that a class from another of your files? I guess I would wonder if the
code being invoked there, is somehow causing this class to be invoked, thus
causing some kind of loop. I would grep for any reference to your Sheet
class, from anywhere else in your code, and that would likely be suspect.
In general, the below is kind of a side topic, to maybe help you with
generic debugging.
All the Best, Steve.
*Ok... the only thing I can think to really help you is to start taking
advantage of logging. In your import list, I see you don't include the
logger code, so maybe you can give this a shot.
1) in the import list
import android.util.Log;
2) and throughout your code
Log.d( TAG, DebugText );
where TAG is a string that is unique to you, and DebugText is something
useful to identify the part of the program you're interested in.
*
On Wed, Dec 30, 2009 at 11:32 AM, JasonMP hyperje...@gmail.com wrote:
Ok, I'm suddenly very curious by your previous statement stephen about
the possibility of creating an infinite loop. Upon a little more
investigation I'm now getting errors all over the place...same
errorjust at different points in the app where I try to
startActivity(intent); As soon as the new activity receives focus is
crashes.
On Dec 30, 1:58 pm, JasonMP hyperje...@gmail.com wrote:
package com.mallet.dtool;
import android.app.AlertDialog;
import android.app.TabActivity;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.DialogInterface.OnClickListener;
import android.content.res.Configuration;
import android.database.Cursor;
import android.graphics.Color;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.AdapterView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.TabHost;
import android.widget.TableLayout;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.TabHost.OnTabChangeListener;
public class Sheet extends TabActivity{
@Override public void onConfigurationChanged(Configuration
newConfig)
{ super.onConfigurationChanged(newConfig); }
DBAdapter db = new DBAdapter(this);
static Long cRowId;
//Variable declaration
public static Integer tabState = 1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.sheet);
db.open();
//capture Tab4 elements
aList = (ListView)
[android-developers] Re: Null pointer exception
Hi Jason
I too was irked with the same exception which got called in some of my
applications and i couldn't find the source for the exception.However
i think i found the reason for it..Here is what i found:
1This exception was called in all the programs in which i used arrays
2Just try this://You have used two arrays in your program from[], and
to[]
Either try a static initialization like this--String from[]=new String
[YOUR_ARRAY_SIZE]
OR
Another option is to initialize them to any value(Even initialization
with null is fine)
This seemed to work for all my programs..hope it does for you too!
PS:It would really help if you can tell which line of ur code throws
the exception
On Dec 31 2009, 9:33 pm, JasonMP hyperje...@gmail.com wrote:
This is bizarre.
It works fine from the OnItemClick() of my OnItemClickListener
attached to my ListView. Just not inside the onContextItemSelected.
*scratches head*
On Dec 31, 9:57 am, JasonMP hyperje...@gmail.com wrote:
yes, Select.class is another one of my files. throughout my app there
are a few different calls to it, all done the same way i.e. Intent i
= new Intent(this, Select.class); startActivity(i);
No where in Select.class do I make a call to start Select.class or
Sheet.class. When its done it calls finish();
in the onCreate() of Select.class I grab the extras from the invoking
class with this line of code:
public class Select extends ListActivity{
DBAdapter db = new DBAdapter(this);
String slotName = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
db.open();
ListView list = getListView();
View v = View.inflate(this, R.layout.list_header, null);
list.addHeaderView(v, null, false);
name =
this.getIntent().getStringExtra(DBAdapter.KEY_NAME);
}
Could it be something in the .getIntent() method? or
the .getStringExtra()?
On Dec 30, 7:19 pm, Stephen @ gmail.com sdickey2...@gmail.com
wrote:
Now that I understand your intent creation a little better, and I see that
the intent you are creating is unique from the class in which the code
exists, I am not quite sure how it could be an infinite loop in the
(immediate) way I was thinking.
Reading this code
Intent i = new Intent(this, Select.class);
I have to start thinking there's something wrong with this. I tried to
look
up the Select class on the android developers site, and couldn't find
it.
Is that a class from another of your files? I guess I would wonder if the
code being invoked there, is somehow causing this class to be invoked,
thus
causing some kind of loop. I would grep for any reference to your Sheet
class, from anywhere else in your code, and that would likely be suspect.
In general, the below is kind of a side topic, to maybe help you with
generic debugging.
All the Best, Steve.
*Ok... the only thing I can think to really help you is to start taking
advantage of logging. In your import list, I see you don't include the
logger code, so maybe you can give this a shot.
1) in the import list
import android.util.Log;
2) and throughout your code
Log.d( TAG, DebugText );
where TAG is a string that is unique to you, and DebugText is something
useful to identify the part of the program you're interested in.
*
On Wed, Dec 30, 2009 at 11:32 AM, JasonMP hyperje...@gmail.com wrote:
Ok, I'm suddenly very curious by your previous statement stephen about
the possibility of creating an infinite loop. Upon a little more
investigation I'm now getting errors all over the place...same
errorjust at different points in the app where I try to
startActivity(intent); As soon as the new activity receives focus is
crashes.
On Dec 30, 1:58 pm, JasonMP hyperje...@gmail.com wrote:
package com.mallet.dtool;
import android.app.AlertDialog;
import android.app.TabActivity;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.DialogInterface.OnClickListener;
import android.content.res.Configuration;
import android.database.Cursor;
import android.graphics.Color;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.AdapterView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.TabHost;
import android.widget.TableLayout;
[android-developers] Re: Null pointer exception
Shouldnt you check if the bundle is null or not? Try to loop through
it when you get there from a onContextItemSelected event. I'm guessing
some value somewhere is null when it should be instantiated. Perhaps
the intent is started quicker or without the bundle somehow so you get
a nullpointer exception?
On 31 dec 2009, 15:57, JasonMP hyperje...@gmail.com wrote:
yes, Select.class is another one of my files. throughout my app there
are a few different calls to it, all done the same way i.e. Intent i
= new Intent(this, Select.class); startActivity(i);
No where in Select.class do I make a call to start Select.class or
Sheet.class. When its done it calls finish();
in the onCreate() of Select.class I grab the extras from the invoking
class with this line of code:
public class Select extends ListActivity{
DBAdapter db = new DBAdapter(this);
String slotName = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
db.open();
ListView list = getListView();
View v = View.inflate(this, R.layout.list_header, null);
list.addHeaderView(v, null, false);
name = this.getIntent().getStringExtra(DBAdapter.KEY_NAME);
}
Could it be something in the .getIntent() method? or
the .getStringExtra()?
On Dec 30, 7:19 pm, Stephen @ gmail.com sdickey2...@gmail.com
wrote:
Now that I understand your intent creation a little better, and I see that
the intent you are creating is unique from the class in which the code
exists, I am not quite sure how it could be an infinite loop in the
(immediate) way I was thinking.
Reading this code
Intent i = new Intent(this, Select.class);
I have to start thinking there's something wrong with this. I tried to look
up the Select class on the android developers site, and couldn't find it.
Is that a class from another of your files? I guess I would wonder if the
code being invoked there, is somehow causing this class to be invoked, thus
causing some kind of loop. I would grep for any reference to your Sheet
class, from anywhere else in your code, and that would likely be suspect.
In general, the below is kind of a side topic, to maybe help you with
generic debugging.
All the Best, Steve.
*Ok... the only thing I can think to really help you is to start taking
advantage of logging. In your import list, I see you don't include the
logger code, so maybe you can give this a shot.
1) in the import list
import android.util.Log;
2) and throughout your code
Log.d( TAG, DebugText );
where TAG is a string that is unique to you, and DebugText is something
useful to identify the part of the program you're interested in.
*
On Wed, Dec 30, 2009 at 11:32 AM, JasonMP hyperje...@gmail.com wrote:
Ok, I'm suddenly very curious by your previous statement stephen about
the possibility of creating an infinite loop. Upon a little more
investigation I'm now getting errors all over the place...same
errorjust at different points in the app where I try to
startActivity(intent); As soon as the new activity receives focus is
crashes.
On Dec 30, 1:58 pm, JasonMP hyperje...@gmail.com wrote:
package com.mallet.dtool;
import android.app.AlertDialog;
import android.app.TabActivity;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.DialogInterface.OnClickListener;
import android.content.res.Configuration;
import android.database.Cursor;
import android.graphics.Color;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.AdapterView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.TabHost;
import android.widget.TableLayout;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.TabHost.OnTabChangeListener;
public class Sheet extends TabActivity{
@Override public void onConfigurationChanged(Configuration
newConfig)
{ super.onConfigurationChanged(newConfig); }
DBAdapter db = new DBAdapter(this);
static Long cRowId;
//Variable declaration
public static Integer tabState = 1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
[android-developers] Re: Null pointer exception
I would just step through it with the debugger (assuming you are using
Eclipse)
On Dec 30, 8:39 am, JasonMP hyperje...@gmail.com wrote:
Anyone know what would cause this error?
12-30 10:26:50.858: ERROR/AndroidRuntime(921): Uncaught handler:
thread main exiting due to uncaught exception
12-30 10:26:50.928: ERROR/AndroidRuntime(921):
java.lang.RuntimeException: Unable to stop activity {com.mallet.dtool/
com.mallet.dtool.Sheet}: java.lang.NullPointerException
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.performStopActivityInner
(ActivityThread.java:3124)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.handleStopActivity(ActivityThread.java:
3167)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.access$2400(ActivityThread.java:116)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1810)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.os.Handler.dispatchMessage(Handler.java:99)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.os.Looper.loop(Looper.java:123)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.main(ActivityThread.java:4203)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
java.lang.reflect.Method.invokeNative(Native Method)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
java.lang.reflect.Method.invoke(Method.java:521)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run
(ZygoteInit.java:791)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
dalvik.system.NativeStart.main(Native Method)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): Caused by:
java.lang.NullPointerException
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.Activity.performStop(Activity.java:3604)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.performStopActivityInner
(ActivityThread.java:3121)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): ... 11 more
This is the code it runs when I get the error (this is a context menu
option from a listview)
Cursor c = db.getInfo(name);
c.moveToPosition(info.position - 1);
Intent i = new Intent(this, Select.class);
i.putExtra(name, c.getString(c.getColumnIndexOrThrow
(DBAdapter.KEY_NAME)));
startActivity(i);
this launches another activity that when opened from other areas of my
app work fine. I checked to see if it had anything to do with the
extras and it didn't seem to(i removed them entirely).
--
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[android-developers] Re: Null pointer exception
Yes I'm using eclipse. I use the debugger and when I hit that point
in my app i get the above error in my logcat window. Is there another
way to debug in eclipse?
On Dec 30, 1:01 pm, Matt hansen.matt...@gmail.com wrote:
I would just step through it with the debugger (assuming you are using
Eclipse)
On Dec 30, 8:39 am, JasonMP hyperje...@gmail.com wrote:
Anyone know what would cause this error?
12-30 10:26:50.858: ERROR/AndroidRuntime(921): Uncaught handler:
thread main exiting due to uncaught exception
12-30 10:26:50.928: ERROR/AndroidRuntime(921):
java.lang.RuntimeException: Unable to stop activity {com.mallet.dtool/
com.mallet.dtool.Sheet}: java.lang.NullPointerException
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.performStopActivityInner
(ActivityThread.java:3124)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.handleStopActivity(ActivityThread.java:
3167)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.access$2400(ActivityThread.java:116)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1810)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.os.Handler.dispatchMessage(Handler.java:99)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.os.Looper.loop(Looper.java:123)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.main(ActivityThread.java:4203)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
java.lang.reflect.Method.invokeNative(Native Method)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
java.lang.reflect.Method.invoke(Method.java:521)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run
(ZygoteInit.java:791)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
dalvik.system.NativeStart.main(Native Method)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): Caused by:
java.lang.NullPointerException
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.Activity.performStop(Activity.java:3604)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.performStopActivityInner
(ActivityThread.java:3121)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): ... 11 more
This is the code it runs when I get the error (this is a context menu
option from a listview)
Cursor c = db.getInfo(name);
c.moveToPosition(info.position - 1);
Intent i = new Intent(this, Select.class);
i.putExtra(name, c.getString(c.getColumnIndexOrThrow
(DBAdapter.KEY_NAME)));
startActivity(i);
this launches another activity that when opened from other areas of my
app work fine. I checked to see if it had anything to do with the
extras and it didn't seem to(i removed them entirely).
--
You received this message because you are subscribed to the Google
Groups Android Developers group.
To post to this group, send email to android-developers@googlegroups.com
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For more options, visit this group at
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Re: [android-developers] Re: Null pointer exception
Sorry if this sounds silly: you might want to set a breakpoint on line:
startActivity(i);
when you hit that point, examine i carefully. From your log, I wonder if
the act of starting the activity invokes your current code, inducing an
infinite loop. Also, if it were my code, I would want to ensure I catch all
uncaught exceptions. Around your code that you feel is failing, I would
catch the general Exception as well as the AndroidRuntimeException (cannot
remember if I've spelled that perfectly right), and print out the stack
frame from the exception that was caught. that might yield additional info.
Finally, further assistance from the forum, you may want to include more of
your code. You probably have something special in there you don't want to
share... just make what you post generic enough so we can see the construct
of your whole activity.
all the best, steve.
On Wed, Dec 30, 2009 at 10:10 AM, JasonMP hyperje...@gmail.com wrote:
Yes I'm using eclipse. I use the debugger and when I hit that point
in my app i get the above error in my logcat window. Is there another
way to debug in eclipse?
On Dec 30, 1:01 pm, Matt hansen.matt...@gmail.com wrote:
I would just step through it with the debugger (assuming you are using
Eclipse)
On Dec 30, 8:39 am, JasonMP hyperje...@gmail.com wrote:
Anyone know what would cause this error?
12-30 10:26:50.858: ERROR/AndroidRuntime(921): Uncaught handler:
thread main exiting due to uncaught exception
12-30 10:26:50.928: ERROR/AndroidRuntime(921):
java.lang.RuntimeException: Unable to stop activity {com.mallet.dtool/
com.mallet.dtool.Sheet}: java.lang.NullPointerException
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.performStopActivityInner
(ActivityThread.java:3124)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.handleStopActivity(ActivityThread.java:
3167)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.access$2400(ActivityThread.java:116)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1810)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.os.Handler.dispatchMessage(Handler.java:99)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.os.Looper.loop(Looper.java:123)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.main(ActivityThread.java:4203)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
java.lang.reflect.Method.invokeNative(Native Method)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
java.lang.reflect.Method.invoke(Method.java:521)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run
(ZygoteInit.java:791)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
dalvik.system.NativeStart.main(Native Method)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): Caused by:
java.lang.NullPointerException
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.Activity.performStop(Activity.java:3604)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.performStopActivityInner
(ActivityThread.java:3121)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): ... 11 more
This is the code it runs when I get the error (this is a context menu
option from a listview)
Cursor c = db.getInfo(name);
c.moveToPosition(info.position - 1);
Intent i = new Intent(this, Select.class);
i.putExtra(name, c.getString(c.getColumnIndexOrThrow
(DBAdapter.KEY_NAME)));
startActivity(i);
this launches another activity that when opened from other areas of my
app work fine. I checked to see if it had anything to do with the
extras and it didn't seem to(i removed them entirely).
--
You received this message because you are subscribed to the Google
Groups Android Developers group.
To post to this group, send email to android-developers@googlegroups.com
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[android-developers] Re: Null pointer exception
Hmm, Ok, I've placed the breakpoint in and everything appears to be
fine, but it still doesn't work. This code is essentially a copy/
paste from another area of my app. In that instance its being called
from a ListView contextmenu as well and works fine. What do you mean
exactly by catching ALL the exceptions? Is that something I need to
add into the code?
On Dec 30, 1:21 pm, Stephen @ gmail.com sdickey2...@gmail.com
wrote:
Sorry if this sounds silly: you might want to set a breakpoint on line:
startActivity(i);
when you hit that point, examine i carefully. From your log, I wonder if
the act of starting the activity invokes your current code, inducing an
infinite loop. Also, if it were my code, I would want to ensure I catch all
uncaught exceptions. Around your code that you feel is failing, I would
catch the general Exception as well as the AndroidRuntimeException (cannot
remember if I've spelled that perfectly right), and print out the stack
frame from the exception that was caught. that might yield additional info.
Finally, further assistance from the forum, you may want to include more of
your code. You probably have something special in there you don't want to
share... just make what you post generic enough so we can see the construct
of your whole activity.
all the best, steve.
On Wed, Dec 30, 2009 at 10:10 AM, JasonMP hyperje...@gmail.com wrote:
Yes I'm using eclipse. I use the debugger and when I hit that point
in my app i get the above error in my logcat window. Is there another
way to debug in eclipse?
On Dec 30, 1:01 pm, Matt hansen.matt...@gmail.com wrote:
I would just step through it with the debugger (assuming you are using
Eclipse)
On Dec 30, 8:39 am, JasonMP hyperje...@gmail.com wrote:
Anyone know what would cause this error?
12-30 10:26:50.858: ERROR/AndroidRuntime(921): Uncaught handler:
thread main exiting due to uncaught exception
12-30 10:26:50.928: ERROR/AndroidRuntime(921):
java.lang.RuntimeException: Unable to stop activity {com.mallet.dtool/
com.mallet.dtool.Sheet}: java.lang.NullPointerException
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.performStopActivityInner
(ActivityThread.java:3124)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.handleStopActivity(ActivityThread.java:
3167)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.access$2400(ActivityThread.java:116)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1810)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.os.Handler.dispatchMessage(Handler.java:99)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.os.Looper.loop(Looper.java:123)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.main(ActivityThread.java:4203)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
java.lang.reflect.Method.invokeNative(Native Method)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
java.lang.reflect.Method.invoke(Method.java:521)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run
(ZygoteInit.java:791)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
dalvik.system.NativeStart.main(Native Method)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): Caused by:
java.lang.NullPointerException
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.Activity.performStop(Activity.java:3604)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): at
android.app.ActivityThread.performStopActivityInner
(ActivityThread.java:3121)
12-30 10:26:50.928: ERROR/AndroidRuntime(921): ... 11 more
This is the code it runs when I get the error (this is a context menu
option from a listview)
Cursor c = db.getInfo(name);
c.moveToPosition(info.position - 1);
Intent i = new Intent(this, Select.class);
i.putExtra(name, c.getString(c.getColumnIndexOrThrow
(DBAdapter.KEY_NAME)));
startActivity(i);
this launches another activity that when opened from other areas of my
app work fine. I checked to see if it had anything to do with the
extras and it didn't seem to(i removed them entirely).
--
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cr...@googlegroups.com
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[android-developers] Re: Null pointer exception
package com.mallet.dtool;
import android.app.AlertDialog;
import android.app.TabActivity;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.DialogInterface.OnClickListener;
import android.content.res.Configuration;
import android.database.Cursor;
import android.graphics.Color;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.AdapterView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.TabHost;
import android.widget.TableLayout;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.TabHost.OnTabChangeListener;
public class Sheet extends TabActivity{
@Override public void onConfigurationChanged(Configuration newConfig)
{ super.onConfigurationChanged(newConfig); }
DBAdapter db = new DBAdapter(this);
static Long cRowId;
//Variable declaration
public static Integer tabState = 1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.sheet);
db.open();
//capture Tab4 elements
aList = (ListView) findViewById(R.id.alist);
aList.setOnItemClickListener(new OnItemClickListener(){
@Override
public void onItemClick(AdapterView? arg0, View arg1,
int arg2,
long arg3) {
Cursor c = db.getAll(Sheet.charName);
c.moveToPosition(arg2 - 1);
Builder builder2 = new AlertDialog.Builder(Sheet.this);
builder2.setTitle(c.getString(c.getColumnIndexOrThrow
(DBAdapter.KEY_NAME)));
builder2.setIcon(R.drawable.equipment);
builder2.setMessage(c.getString(c.getColumnIndexOrThrow
(DBAdapter.KEY_DESC)));
builder2.setPositiveButton(Ok, null);
builder2.show();
}
});
registerForContextMenu(aList);
}
@Override
public void onResume()
{
super.onResume();
fillAList();
}
@Override
public void onDestroy(){
super.onDestroy();
db.close();
}
@Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
if(v == aList){
menu.add(0, 7, 0, option 1);
}
}
@Override
public boolean onContextItemSelected(MenuItem item) {
AdapterContextMenuInfo info = (AdapterContextMenuInfo)
item.getMenuInfo();
Cursor c = null;
startManagingCursor(c);
Long id;
Integer idInt;
switch(item.getItemId()) {
case 7:
c = db.getInfo(name);
c.moveToPosition(info.position - 1);
Intent i = new Intent(this, Select.class);
i.putExtra(DBAdapter.KEY_NAME,
c.getString(c.getColumnIndexOrThrow
(DBAdapter.KEY_NAME)));
startActivity(i);
return true;
}
return super.onContextItemSelected(item);
}
public void fillArmorList(){
Cursor c = db.getAll(Sheet.charName);
startManagingCursor(c);
String[] from = new String[]{//DB columns};
int[] to = new int[]{//Layout Elements};
SimpleCursorAdapter items = new SimpleCursorAdapter(this,
R.layout.item_row, c, from, to);
aList.setAdapter(items);
}
}
On Dec 30, 1:41 pm, JasonMP hyperje...@gmail.com wrote:
Hmm, Ok, I've placed the breakpoint in and everything appears to be
fine, but it still doesn't work. This code is essentially a copy/
paste from another area of my app. In that instance its being called
from a ListView contextmenu as well and works fine. What do you mean
exactly by catching ALL the exceptions? Is that something I need to
add into the code?
On Dec 30, 1:21 pm, Stephen @ gmail.com sdickey2...@gmail.com
wrote:
Sorry if this sounds silly: you might want to set a breakpoint on line:
startActivity(i);
when you hit that point, examine i carefully. From your log, I wonder if
the act of starting the activity invokes your current code, inducing an
infinite loop. Also, if it were my code, I would want to ensure I catch all
uncaught exceptions. Around
[android-developers] Re: Null pointer exception
Ok, I'm suddenly very curious by your previous statement stephen about
the possibility of creating an infinite loop. Upon a little more
investigation I'm now getting errors all over the place...same
errorjust at different points in the app where I try to
startActivity(intent); As soon as the new activity receives focus is
crashes.
On Dec 30, 1:58 pm, JasonMP hyperje...@gmail.com wrote:
package com.mallet.dtool;
import android.app.AlertDialog;
import android.app.TabActivity;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.DialogInterface.OnClickListener;
import android.content.res.Configuration;
import android.database.Cursor;
import android.graphics.Color;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.AdapterView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.TabHost;
import android.widget.TableLayout;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.TabHost.OnTabChangeListener;
public class Sheet extends TabActivity{
@Override public void onConfigurationChanged(Configuration newConfig)
{ super.onConfigurationChanged(newConfig); }
DBAdapter db = new DBAdapter(this);
static Long cRowId;
//Variable declaration
public static Integer tabState = 1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.sheet);
db.open();
//capture Tab4 elements
aList = (ListView) findViewById(R.id.alist);
aList.setOnItemClickListener(new OnItemClickListener(){
@Override
public void onItemClick(AdapterView? arg0, View
arg1, int arg2,
long arg3) {
Cursor c = db.getAll(Sheet.charName);
c.moveToPosition(arg2 - 1);
Builder builder2 = new
AlertDialog.Builder(Sheet.this);
builder2.setTitle(c.getString(c.getColumnIndexOrThrow
(DBAdapter.KEY_NAME)));
builder2.setIcon(R.drawable.equipment);
builder2.setMessage(c.getString(c.getColumnIndexOrThrow
(DBAdapter.KEY_DESC)));
builder2.setPositiveButton(Ok, null);
builder2.show();
}
});
registerForContextMenu(aList);
}
@Override
public void onResume()
{
super.onResume();
fillAList();
}
@Override
public void onDestroy(){
super.onDestroy();
db.close();
}
@Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
if(v == aList){
menu.add(0, 7, 0, option 1);
}
}
@Override
public boolean onContextItemSelected(MenuItem item) {
AdapterContextMenuInfo info = (AdapterContextMenuInfo)
item.getMenuInfo();
Cursor c = null;
startManagingCursor(c);
Long id;
Integer idInt;
switch(item.getItemId()) {
case 7:
c = db.getInfo(name);
c.moveToPosition(info.position - 1);
Intent i = new Intent(this, Select.class);
i.putExtra(DBAdapter.KEY_NAME,
c.getString(c.getColumnIndexOrThrow
(DBAdapter.KEY_NAME)));
startActivity(i);
return true;
}
return super.onContextItemSelected(item);
}
public void fillArmorList(){
Cursor c = db.getAll(Sheet.charName);
startManagingCursor(c);
String[] from = new String[]{//DB columns};
int[] to = new int[]{//Layout Elements};
SimpleCursorAdapter items = new SimpleCursorAdapter(this,
R.layout.item_row, c, from, to);
aList.setAdapter(items);
}
}
On Dec 30, 1:41 pm, JasonMP hyperje...@gmail.com wrote:
Hmm, Ok, I've placed the breakpoint in and everything appears to be
fine, but it still doesn't work. This code is essentially a copy/
paste from another area of my app. In that instance its being called
from a ListView contextmenu as well and works fine. What do you mean
exactly by
Re: [android-developers] Re: Null pointer exception
Now that I understand your intent creation a little better, and I see that
the intent you are creating is unique from the class in which the code
exists, I am not quite sure how it could be an infinite loop in the
(immediate) way I was thinking.
Reading this code
Intent i = new Intent(this, Select.class);
I have to start thinking there's something wrong with this. I tried to look
up the Select class on the android developers site, and couldn't find it.
Is that a class from another of your files? I guess I would wonder if the
code being invoked there, is somehow causing this class to be invoked, thus
causing some kind of loop. I would grep for any reference to your Sheet
class, from anywhere else in your code, and that would likely be suspect.
In general, the below is kind of a side topic, to maybe help you with
generic debugging.
All the Best, Steve.
*Ok... the only thing I can think to really help you is to start taking
advantage of logging. In your import list, I see you don't include the
logger code, so maybe you can give this a shot.
1) in the import list
import android.util.Log;
2) and throughout your code
Log.d( TAG, DebugText );
where TAG is a string that is unique to you, and DebugText is something
useful to identify the part of the program you're interested in.
*
On Wed, Dec 30, 2009 at 11:32 AM, JasonMP hyperje...@gmail.com wrote:
Ok, I'm suddenly very curious by your previous statement stephen about
the possibility of creating an infinite loop. Upon a little more
investigation I'm now getting errors all over the place...same
errorjust at different points in the app where I try to
startActivity(intent); As soon as the new activity receives focus is
crashes.
On Dec 30, 1:58 pm, JasonMP hyperje...@gmail.com wrote:
package com.mallet.dtool;
import android.app.AlertDialog;
import android.app.TabActivity;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.DialogInterface.OnClickListener;
import android.content.res.Configuration;
import android.database.Cursor;
import android.graphics.Color;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.AdapterView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.TabHost;
import android.widget.TableLayout;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.TabHost.OnTabChangeListener;
public class Sheet extends TabActivity{
@Override public void onConfigurationChanged(Configuration
newConfig)
{ super.onConfigurationChanged(newConfig); }
DBAdapter db = new DBAdapter(this);
static Long cRowId;
//Variable declaration
public static Integer tabState = 1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.sheet);
db.open();
//capture Tab4 elements
aList = (ListView) findViewById(R.id.alist);
aList.setOnItemClickListener(new OnItemClickListener(){
@Override
public void onItemClick(AdapterView? arg0, View
arg1, int arg2,
long arg3) {
Cursor c = db.getAll(Sheet.charName);
c.moveToPosition(arg2 - 1);
Builder builder2 = new
AlertDialog.Builder(Sheet.this);
builder2.setTitle(c.getString(c.getColumnIndexOrThrow
(DBAdapter.KEY_NAME)));
builder2.setIcon(R.drawable.equipment);
builder2.setMessage(c.getString(c.getColumnIndexOrThrow
(DBAdapter.KEY_DESC)));
builder2.setPositiveButton(Ok, null);
builder2.show();
}
});
registerForContextMenu(aList);
}
@Override
public void onResume()
{
super.onResume();
fillAList();
}
@Override
public void onDestroy(){
super.onDestroy();
db.close();
}
@Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
if(v == aList){
menu.add(0, 7, 0, option 1);
}
}
@Override
public boolean
[android-developers] Re: Null pointer exception while receiving at Broadcast receiver
It would be best to check for null before attempting to use. Perhaps
whatever is issuing the broadcast is not adding the string extra.
String msg_receive = intent.getStringExtra(message1);
if (msg_receive != null) {
AssetTest.hh_text.append(\n\n+msg_receive);
}
Randy
On Sep 3, 10:49 pm, Asif k asifk1...@gmail.com wrote:
Hi all,
I am receiving Text messages from another application sent through
broadcast intent. I am displaying these messages to my application's
GUI.
In my application I had defined broadcast receiver in my
manifest.xml
--
receiver android:name=.HHBroadcastReceiver
intent-filter
action android:name=android.demo.test/
/intent-filter
/receiver
-
and also define the logic in the Broadcast receiver class
---
public class HHBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
//TODO: React to the Intent received.
String msg_receive = intent.getStringExtra(message1);
AssetTest.hh_text.append(\n\n+msg_receive);}
}
-
but I am getting following error,
09-04 10:49:04.275: ERROR/AndroidRuntime(912):
java.lang.RuntimeException: Unable to start receiver
android.hh.HHBroadcastReceiver: java.lang.NullPointerException
09-04 10:49:04.275: ERROR/AndroidRuntime(912): at
android.app.ActivityThread.handleReceiver(ActivityThread.java:2417)
09-04 10:49:04.275: ERROR/AndroidRuntime(912): at
android.app.ActivityThread.access$2700(ActivityThread.java:112)
09-04 10:49:04.275: ERROR/AndroidRuntime(912): at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1741)
09-04 10:49:04.275: ERROR/AndroidRuntime(912): at
android.os.Handler.dispatchMessage(Handler.java:99)
09-04 10:49:04.275: ERROR/AndroidRuntime(912): at
android.os.Looper.loop(Looper.java:123)
09-04 10:49:04.275: ERROR/AndroidRuntime(912): at
android.app.ActivityThread.main(ActivityThread.java:3948)
09-04 10:49:04.275: ERROR/AndroidRuntime(912): at
java.lang.reflect.Method.invokeNative(Native Method)
09-04 10:49:04.275: ERROR/AndroidRuntime(912): at
java.lang.reflect.Method.invoke(Method.java:521)
09-04 10:49:04.275: ERROR/AndroidRuntime(912): at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run
(ZygoteInit.java:782)
09-04 10:49:04.275: ERROR/AndroidRuntime(912): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540)
09-04 10:49:04.275: ERROR/AndroidRuntime(912): at
dalvik.system.NativeStart.main(Native Method)
09-04 10:49:04.275: ERROR/AndroidRuntime(912): Caused by:
java.lang.NullPointerException
09-04 10:49:04.275: ERROR/AndroidRuntime(912): at
android.hh.HHBroadcastReceiver.onReceive(HHBroadcastReceiver.java:12)
09-04 10:49:04.275: ERROR/AndroidRuntime(912): at
android.app.ActivityThread.handleReceiver(ActivityThread.java:2408)
09-04 10:49:04.275: ERROR/AndroidRuntime(912): ... 10 more
Please help.
Thanks,
Asif
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[android-developers] Re: Null Pointer Exception
Without looking at your code, it si practically impossible to suggest something to you... Dexter. On Aug 31, 9:51 am, Sasi Kumar sasikumar.it1...@gmail.com wrote: when i'm trying to call another class method. It is showing null pointer exception. Plz give some suggestion to get back from this --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: Null Pointer Exception
My first guess is that your variable is not instantiated that's why you cannot call the method. but let's look at your code first -- Roman Baumgaertner Sr. SW Engineer-OSDC ·T· · ·Mobile· stick together The views, opinions and statements in this email are those of the author solely in their individual capacity, and do not necessarily represent those of T-Mobile USA, Inc. On Aug 30, 9:51 pm, Sasi Kumar sasikumar.it1...@gmail.com wrote: when i'm trying to call another class method. It is showing null pointer exception. Plz give some suggestion to get back from this --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: Null pointer exception while using setOnClickListener
I solved the problem building a custom view list adapter. I post the
code here with some comments so it can help any body else :
import android.content.Context;
import android.database.Cursor;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.CheckBox;
import android.widget.ImageButton;
import android.widget.SimpleCursorAdapter;
import android.widget.TextView;
public class ItemListAdapter extends SimpleCursorAdapter
{
private Context context;
private int layout_id;
// initialize the on click listeners. It's static so it's share with
all the buttons to avoid object creation
// navigation with the arrow button
private static final OnClickListener arrow_button_on_click_listener =
new OnClickListener() {
public void onClick(View v) {
// on click, get the id of the item, make it the current node
// then refresh the view so we see its children
InContext list = (InContext) v.getContext();
list.setCurrentNode(v.getId());
list.refreshView();
}
};
// validation with the check box button
// initialize the listener. It's static so it's share with all the
buttons to avoid object creation
private static final OnClickListener check_box_on_click_listener =
new OnClickListener() {
public void onClick(View v) {
// on click, get the id of the item, make it the current node
// then refresh the view so we see its children
InContext list = (InContext) v.getContext();
// this state is the contrary of the previous one
int checked = 1;
if (((CheckBox) v).isChecked())
checked = 0;
list.toggleItem(v.getId(), checked);
}
};
public ItemListAdapter(Context context, int layout_id, Cursor
c,String[] from, int[] to)
{
super(context, layout_id, c, from, to);
this.context = context;
this.layout_id = layout_id;
}
/**
* Custom view translates columns into checkbox, title and arrow
*
* @see android.widget.CursorAdapter#getView(int,
android.view.View, android.view.ViewGroup)
*/
public View getView(int position, View convertView, ViewGroup
parent)
{
// no need to manage the cursor, thanks to the
simplecursoradapter, it will be on the right position
Cursor cursor = getCursor();
cursor.moveToPosition(position);
// get the id of the item, so we can store it in each view
int index = cursor.getColumnIndex(ItemDbHelper.KEY_ID);
int _id = cursor.getInt(index);
/* inflate the list row view from the XML so we can
instanciate it's child with findViewById
if we don't do that, we'll get null from findViewById and so
a null pointer exception */
// first we get the instance of the inflater that is pre
configured for this phone
LayoutInflater inflater = LayoutInflater.from(this.context);
// then, we inflate the view with it
View v = inflater.inflate(this.layout_id,
parent,
false); // we
don't want the layout to be bound to any
root for the moment, setAdapter() will do that
// set the value of the item title of each row
TextView item_title = (TextView) v.findViewById
(R.id.item_title);
index = cursor.getColumnIndex(ItemDbHelper.KEY_TITLE);
item_title.setText(cursor.getString(index));
// set the status of the checkbox of each row
CheckBox item_checkbox = (CheckBox) v.findViewById
(R.id.row_checkbox);
item_checkbox.setId(_id);
index = cursor.getColumnIndex(ItemDbHelper.KEY_CHECKED);
if (cursor.getInt(index) == 0)
item_checkbox.setChecked(false);
else
item_checkbox.setChecked(true);
// set the check box click listener to perform db update on
clic
item_checkbox.setOnClickListener(check_box_on_click_listener);
// set the image of the image button according to the number
of childrdb en
ImageButton arrow = (ImageButton) v.findViewById
(R.id.arrow_right);
arrow.setId(_id);
index = cursor.getColumnIndex
(ItemDbHelper.KEY_CHILDREN_COUNT);
if (cursor.getInt(index) == 0)
arrow.setImageResource(R.drawable.arrow);
else
arrow.setImageResource(R.drawable.double_arrow);
// set the arrow button click listener to navigate in depth in
the node list
arrow.setOnClickListener(arrow_button_on_click_listener);
return v;
}
}
On Apr 7, 8:56 pm, e-satis info.ksam...@googlemail.com wrote:
My row
[android-developers] Re: Null pointer exception while using setOnClickListener
Update : setContentView first and before all, checked :-)
On 7 avr, 20:09, e-satis info.ksam...@googlemail.com wrote:
Update : Reading other posts, I tried to trash the R.java file but it
was not the cause.
On 7 avr, 19:48, e-satis info.ksam...@googlemail.com wrote:
Hi,
My java code look like this :
// right_arrow button
ImageButton arrow_button = (ImageButton)findViewById
(R.id.arrow);
arrow_button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
((View)v.getParent().getParent()).setSelected(true);
}
});
And the corresponding XML look like :
LinearLayout xmlns:android=http://schemas.android.com/apk/res/
android
android:id=@+id/row_layout
LinearLayout android:id=@+id/row_checkbox_container
CheckBox android:id=@+id/row_checkbox /
/LinearLayout
LinearLayout android:id=@+id/item_title_container
TextView android:id=@+id/item_title/
/LinearLayout
LinearLayout android:id=@+id/right_arrow_container
ImageButton android:id=@+id/arrow
android:layout_width=18px
android:layout_height=fill_parent
android:layout_gravity=bottom
android:layout_weight=1
android:src=@drawable/arrow
android:background=#/
/LinearLayout
/LinearLayout
I got anullpointerexceptionright after running the app in the
emulator from eclipse on Ubuntu 8.10 :
E/AndroidRuntime( 1426): java.lang.RuntimeException: Unable to start
activity ComponentInfo{com.getincontext/com.getincontext.InContext}:
java.lang.NullPointerException
E/AndroidRuntime( 1426): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
2141)
E/AndroidRuntime( 1426): at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:
2157)
E/AndroidRuntime( 1426): at android.app.ActivityThread.access$1800
(ActivityThread.java:112)
E/AndroidRuntime( 1426): at
android.app.ActivityThread$H.handleMessage
(ActivityThread.java:1581)
E/AndroidRuntime( 1426): at android.os.Handler.dispatchMessage
(Handler.java:88)
E/AndroidRuntime( 1426): at android.os.Looper.loop(Looper.java:123)
E/AndroidRuntime( 1426): at android.app.ActivityThread.main
(ActivityThread.java:3739)
E/AndroidRuntime( 1426): at java.lang.reflect.Method.invokeNative
(Native Method)
E/AndroidRuntime( 1426): at java.lang.reflect.Method.invoke
(Method.java:515)
E/AndroidRuntime( 1426): at com.android.internal.os.ZygoteInit
$MethodAndArgsCaller.run(ZygoteInit.java:739)
E/AndroidRuntime( 1426): at com.android.internal.os.ZygoteInit.main
(ZygoteInit.java:497)
E/AndroidRuntime( 1426): at dalvik.system.NativeStart.main(Native
Method)
E/AndroidRuntime( 1426): Caused by: java.lang.NullPointerException
E/AndroidRuntime( 1426): at com.getincontext.InContext.onCreate
(InContext.java:51)
E/AndroidRuntime( 1426): at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:
1122)
E/AndroidRuntime( 1426): at
android.app.ActivityThread.performLaunchActiv
I searched in the other posts something similar, and It seems that it
must be because the ImageButton is set tonull.
Unfortunately I can't find anything that would lead to it in the XML
or the Java code. The button is displayed properly and eclipse does
not detect any error. I guess this is runtime.
I tried to cast from ImageButton to button but it doesn't change
anything. So I image the trouble is from findViewById(), but arrow to
exists, is a regular pgn file and is displayed by the emulator if this
line is commented.
The weirdest is that I got a similar statement just above, and I can't
see any difference.
Any clue ?
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[android-developers] Re: Null pointer exception while using setOnClickListener
Update : Reading other posts, I tried to trash the R.java file but it
was not the cause.
On 7 avr, 19:48, e-satis info.ksam...@googlemail.com wrote:
Hi,
My java code look like this :
// right_arrow button
ImageButton arrow_button = (ImageButton)findViewById
(R.id.arrow);
arrow_button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
((View)v.getParent().getParent()).setSelected(true);
}
});
And the corresponding XML look like :
LinearLayout xmlns:android=http://schemas.android.com/apk/res/
android
android:id=@+id/row_layout
LinearLayout android:id=@+id/row_checkbox_container
CheckBox android:id=@+id/row_checkbox /
/LinearLayout
LinearLayout android:id=@+id/item_title_container
TextView android:id=@+id/item_title/
/LinearLayout
LinearLayout android:id=@+id/right_arrow_container
ImageButton android:id=@+id/arrow
android:layout_width=18px
android:layout_height=fill_parent
android:layout_gravity=bottom
android:layout_weight=1
android:src=@drawable/arrow
android:background=#/
/LinearLayout
/LinearLayout
I got anullpointerexceptionright after running the app in the
emulator from eclipse on Ubuntu 8.10 :
E/AndroidRuntime( 1426): java.lang.RuntimeException: Unable to start
activity ComponentInfo{com.getincontext/com.getincontext.InContext}:
java.lang.NullPointerException
E/AndroidRuntime( 1426): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
2141)
E/AndroidRuntime( 1426): at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:
2157)
E/AndroidRuntime( 1426): at android.app.ActivityThread.access$1800
(ActivityThread.java:112)
E/AndroidRuntime( 1426): at android.app.ActivityThread$H.handleMessage
(ActivityThread.java:1581)
E/AndroidRuntime( 1426): at android.os.Handler.dispatchMessage
(Handler.java:88)
E/AndroidRuntime( 1426): at android.os.Looper.loop(Looper.java:123)
E/AndroidRuntime( 1426): at android.app.ActivityThread.main
(ActivityThread.java:3739)
E/AndroidRuntime( 1426): at java.lang.reflect.Method.invokeNative
(Native Method)
E/AndroidRuntime( 1426): at java.lang.reflect.Method.invoke
(Method.java:515)
E/AndroidRuntime( 1426): at com.android.internal.os.ZygoteInit
$MethodAndArgsCaller.run(ZygoteInit.java:739)
E/AndroidRuntime( 1426): at com.android.internal.os.ZygoteInit.main
(ZygoteInit.java:497)
E/AndroidRuntime( 1426): at dalvik.system.NativeStart.main(Native
Method)
E/AndroidRuntime( 1426): Caused by: java.lang.NullPointerException
E/AndroidRuntime( 1426): at com.getincontext.InContext.onCreate
(InContext.java:51)
E/AndroidRuntime( 1426): at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:
1122)
E/AndroidRuntime( 1426): at
android.app.ActivityThread.performLaunchActiv
I searched in the other posts something similar, and It seems that it
must be because the ImageButton is set tonull.
Unfortunately I can't find anything that would lead to it in the XML
or the Java code. The button is displayed properly and eclipse does
not detect any error. I guess this is runtime.
I tried to cast from ImageButton to button but it doesn't change
anything. So I image the trouble is from findViewById(), but arrow to
exists, is a regular pgn file and is displayed by the emulator if this
line is commented.
The weirdest is that I got a similar statement just above, and I can't
see any difference.
Any clue ?
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-~--~~~~--~~--~--~---
[android-developers] Re: Null pointer exception in MapActivity
check the Manifest file Best Regards Eric Chan On Fri, Mar 13, 2009 at 3:48 PM, olko y.olkho...@gmail.com wrote: I am using a procedure described here: http://developer.android.com/guide/tutorials/views/hello-mapview.html http://androidguys.com/?p=1413 http://groups.google.com/group/android-developers/browse_thread/thread/fe23998c189ebcbd/38bab7cdd70598f7?lnk=gstq=getOverlays#38bab7cdd70598f7 to create am instance of MapActivity and put on the map zoom controls, my location overlay and a number of subclassed itemized overlays. Everything seems to work except one little problem. As soon as I put subclassed itemized overlayes on the map and click the map instead of the zoom controls I get Null pointer exception. Any ideas? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: Null Pointer Exception
Hi kenishant,
When a java file will create , in that case, only one (1) time
setContentView (R.layout.abcd) you can create.
And another case is, there must be some what mismatch with the java file and
the xml file.
so in these cases, NullPointerException can come.
Thanks,
Dolan.
On Sat, Jun 21, 2008 at 4:59 PM, redhatab [EMAIL PROTECTED] wrote:
Hi,
Am a total beginner and I was trying out to extrapolate on the Hello
Android code, but I've sort of hit a road block with a null pointer
exception. The code is as below:
public class HelloAndroid extends Activity
{
@Override
public void onCreate(Bundle icicle)
{
super.onCreate(icicle);
setContentView(R.layout.screen1);
Button btn = (Button) findViewById(R.id.hellobtn);
btn.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
setContentView(R.layout.screen2);
}
});
}
}
As soon as I run this, the emulator gives me a null pointer exception.
The res/layout/screen1.xml and res/layout/screen2.xml are working
perfectly fine because when I just run
setContentView(R.layout.screen1) without the onClickListener, both the
screens work fine.
I suppose the null pointer exception pops in the onClick function.
Pls help!!
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google
Groups Android Developers group.
To post to this group, send email to android-developers@googlegroups.com
To unsubscribe from this group, send email to
[EMAIL PROTECTED]
Announcing the new M5 SDK!
http://android-developers.blogspot.com/2008/02/android-sdk-m5-rc14-now-available.html
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en
-~--~~~~--~~--~--~---
[android-developers] Re: Null Pointer Exception
redhatab wrote:
Hi,
Am a total beginner and I was trying out to extrapolate on the Hello
Android code, but I've sort of hit a road block with a null pointer
exception. The code is as below:
public class HelloAndroid extends Activity
{
@Override
public void onCreate(Bundle icicle)
{
super.onCreate(icicle);
setContentView(R.layout.screen1);
Button btn = (Button) findViewById(R.id.hellobtn);
btn.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
setContentView(R.layout.screen2);
}
});
}
}
As soon as I run this, the emulator gives me a null pointer exception.
The res/layout/screen1.xml and res/layout/screen2.xml are working
perfectly fine because when I just run
setContentView(R.layout.screen1) without the onClickListener, both the
screens work fine.
I suppose the null pointer exception pops in the onClick function.
If you get the exception as soon as you run the program in the emulator,
it can't be *inside* onClick(), as you would not have clicked anything yet.
More likely, btn is not getting set, because findViewById() is returning
null, which would occur if R.id.hellobtn isn't in R.layout.screen1. The
fact that your code compiles means that R.id.hellobtn probably exists
somewhere...maybe in screen2?
Use adb logcat (or the Eclipse equivalent) to get a stacktrace to see
where you're failing.
If you can't find the problem, post the XML layouts associated with this
activity, and the stacktrace, and that may give us more clues.
--
Mark Murphy (a Commons Guy)
http://commonsware.com
Warescription: All titles, revisions, ebook formats, just $35/year
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google
Groups Android Developers group.
To post to this group, send email to android-developers@googlegroups.com
To unsubscribe from this group, send email to
[EMAIL PROTECTED]
Announcing the new M5 SDK!
http://android-developers.blogspot.com/2008/02/android-sdk-m5-rc14-now-available.html
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en
-~--~~~~--~~--~--~---
[android-developers] Re: Null Pointer Exception
Just a tip on NullPointerExceptions: if you are using eclipse in debug mode
there is a pane for your Breakpoints. In this pane there is a button that
looks like J! and it will let you add an exception to your breakpoint list.
This will cause your app to pause whenever this exception is thrown while
debugging your app. This is a good way to determine what may be happening.
Also, the line number will be available if you look at the LogCat output.
--
Zach Hobbs
HelloAndroid.com
Android OS news, tutorials, downloads
On Saturday 21 June 2008 07:29:02 redhatab wrote:
Hi,
Am a total beginner and I was trying out to extrapolate on the Hello
Android code, but I've sort of hit a road block with a null pointer
exception. The code is as below:
public class HelloAndroid extends Activity
{
@Override
public void onCreate(Bundle icicle)
{
super.onCreate(icicle);
setContentView(R.layout.screen1);
Button btn = (Button) findViewById(R.id.hellobtn);
btn.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
setContentView(R.layout.screen2);
}
});
}
}
As soon as I run this, the emulator gives me a null pointer exception.
The res/layout/screen1.xml and res/layout/screen2.xml are working
perfectly fine because when I just run
setContentView(R.layout.screen1) without the onClickListener, both the
screens work fine.
I suppose the null pointer exception pops in the onClick function.
Pls help!!
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google
Groups Android Developers group.
To post to this group, send email to android-developers@googlegroups.com
To unsubscribe from this group, send email to
[EMAIL PROTECTED]
Announcing the new M5 SDK!
http://android-developers.blogspot.com/2008/02/android-sdk-m5-rc14-now-available.html
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en
-~--~~~~--~~--~--~---
[android-developers] Re: Null pointer Exception while accessing Textfile
Without knowing more about your code, I'd say activity is null. On May 10, 2:51 am, Analdin Judy [EMAIL PROTECTED] wrote: Hi, Can anybody please tell me the reason for null pointer exception while reading a textfile I use the below code to read the textfile in raw. activity.getResources().openRawResource(R.raw.*judy*); -- Thanks Regards Analdin Judy.M InfoWave Knowledgeware. Beyond Multimedia Chennai | INDIA M: +91.98416.64705www.i-waves.com The information contained in this e-mail (including any attachments) is intended by InfoWave for the use of the named individual or entity to which it is directed and is CONFIDENTIAL or PRIVILEGED. If you have received this e-mail (including any attachments) in error, please do not review, disclose, disseminate, distribute or copy this e-mail and attachments. As Electronic and Internet communications can be interfered with or affected by viruses and other defects, please scan this message and any attachments --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] Announcing the new M5 SDK! http://android-developers.blogspot.com/2008/02/android-sdk-m5-rc14-now-available.html For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: Null Pointer Exception on simple People query
I'm sorry, it's not that it returs a null pointer exception, it's that when I query the People database on my second activity, cursor.first() returns false!!! All of the people are still in the database (nothing's changed)... why would the query from my first activity return the list of People, and an identical query return nothing? I'm very puzzled. Thanks, James On May 6, 8:03 pm, Ahmet A. Akin [EMAIL PROTECTED] wrote: maybe you should write the stack trace. On Tue, May 6, 2008 at 9:29 PM, kingkung [EMAIL PROTECTED] wrote: Hey all, Not sure what Im doing wrong... I have a dbHelper which makes a query for all of the rows in People. When I do this query in my first activity, initializing dbHelper with that activity, I get all the people as I am supposed to. However, when I do the query in my second activity, with its own dbHelper initialized on its own activity, the cursor is assigned null!! I call cursor.first(), and the app throws an NPE. Nothing about the People database has changed... the table is the same between the first and second activity. Anyone know what is going on??? Thanks, James --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] Announcing the new M5 SDK! http://android-developers.blogspot.com/2008/02/android-sdk-m5-rc14-now-available.html For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: Null Pointer Exception on simple People query
maybe you should write the stack trace. On Tue, May 6, 2008 at 9:29 PM, kingkung [EMAIL PROTECTED] wrote: Hey all, Not sure what Im doing wrong... I have a dbHelper which makes a query for all of the rows in People. When I do this query in my first activity, initializing dbHelper with that activity, I get all the people as I am supposed to. However, when I do the query in my second activity, with its own dbHelper initialized on its own activity, the cursor is assigned null!! I call cursor.first(), and the app throws an NPE. Nothing about the People database has changed... the table is the same between the first and second activity. Anyone know what is going on??? Thanks, James --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] Announcing the new M5 SDK! http://android-developers.blogspot.com/2008/02/android-sdk-m5-rc14-now-available.html For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: Null pointer exception when finding views by Id
Thanks for the help. I finally just trashed both the xml and class
files and rewrote then. It works now, I think it had to do with the
DatePicker. Thanks for the help.
KaiPing
On Mar 28, 8:07 pm, Peli [EMAIL PROTECTED] wrote:
Which is the line that causes the null-pointer exception? The code
lines you posted surely don't as they just assign the values. How do
you know that the values are 'null' in onCreate()?
What is in EditTransaction.java:47 ?
Peli
On Mar 28, 12:38 pm,kaiping[EMAIL PROTECTED] wrote:
OK, Did that and it still has the same error
On Mar 27, 11:43 pm, Peli [EMAIL PROTECTED] wrote:
Sometimes R.java is corrupted. It helps to clean everything either
from within Eclipse or manually (delete bin/ and R.java) and rebuild
from scratch.
Peli
On Mar 27, 2:44 pm,kaiping[EMAIL PROTECTED] wrote:
I am sure, Actually the R.id.account_name was a type I forgot to fix.
But, even the once that are in there return null.
On Mar 27, 12:16 am, Dan U. [EMAIL PROTECTED] wrote:
Are you sure ALL the findViewById return null? This one does for sure:
mDescription = (EditText) findViewById(R.id.account_name); since there
is no account_name id in your layout.
On Mar 26, 6:19 am,kaiping[EMAIL PROTECTED] wrote:
Thanks for the idea. I have confirmed that the file is named
transaction_edit.xml.
On Mar 26, 3:54 am, Dan U. [EMAIL PROTECTED] wrote:
Well, he needs to have the filename be transaction_edit.xml. Not
sure
if it is.
On Mar 25, 5:29 am, Rick Genter [EMAIL PROTECTED] wrote:
Don't you need to name your layout transaction_edit in the
XML file?
On Mar 25, 2008, at 5:26 AM,kaipingwrote:
Hi, For one of my Activities All the findViewById() function
returns
is null. I am really astonished by this behaviour because
this same
function works fine in other parts of my application. I have
posted
the code below. If anybody has any ideas that would be great
thanks,
Josh
package com.jingsys.money;
import java.util.ArrayList;
import android.app.Activity;
import android.database.Cursor;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.Spinner;
import com.jingsys.money.data.AccountsDbAdapter;
import com.jingsys.money.data.MoneyDbAdapterFactory;
import com.jingsys.money.data.TransactionDbAdapter;
public class EditTransaction extends Activity {
private DatePicker mDate;
private EditText mDescription;
private EditText mNumber;
private EditText mAmount;
private Spinner mFromAccount;
private Spinner mToAccount;
private EditText mComments;
private TransactionDbAdapter transData;
private AccountsDbAdapter accountData;
private Cursor mFrom;
private Cursor mTo;
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.transaction_edit);
mDate = (DatePicker) findViewById(R.id.trans_date);
mDescription = (EditText)
findViewById(R.id.account_name);
mNumber = (EditText)
findViewById(R.id.trans_number);
mAmount = (EditText)
findViewById(R.id.trans_amount);
mComments = (EditText)
findViewById(R.id.trans_comments);
mFromAccount = (Spinner)
findViewById(R.id.trans_from);
mToAccount = (Spinner) findViewById(R.id.trans_to);
XML file
?xml version=1.0 encoding=UTF-8?
TableLayout
xmlns:android=http://schemas.android.com/apk/res/
android
android:layout_width=fill_parent
android:layout_height=fill_parent
android:stretchColumns=1
TableRow
TextView android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=@string/transaction_date /
DatePicker android:id=@+id/trans_date
android:layout_width=wrap_content
android:layout_height=wrap_content /
/TableRow
TableRow
TextView android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=@string/transaction_description /
EditText android:id=@+id/trans_descr
android:layout_width=wrap_content
[android-developers] Re: Null pointer exception when finding views by Id
I am sure, Actually the R.id.account_name was a type I forgot to fix.
But, even the once that are in there return null.
On Mar 27, 12:16 am, Dan U. [EMAIL PROTECTED] wrote:
Are you sure ALL the findViewById return null? This one does for sure:
mDescription = (EditText) findViewById(R.id.account_name); since there
is no account_name id in your layout.
On Mar 26, 6:19 am,kaiping[EMAIL PROTECTED] wrote:
Thanks for the idea. I have confirmed that the file is named
transaction_edit.xml.
On Mar 26, 3:54 am, Dan U. [EMAIL PROTECTED] wrote:
Well, he needs to have the filename be transaction_edit.xml. Not sure
if it is.
On Mar 25, 5:29 am, Rick Genter [EMAIL PROTECTED] wrote:
Don't you need to name your layout transaction_edit in the XML file?
On Mar 25, 2008, at 5:26 AM,kaipingwrote:
Hi, For one of my Activities All the findViewById() function returns
is null. I am really astonished by this behaviour because this same
function works fine in other parts of my application. I have posted
the code below. If anybody has any ideas that would be great thanks,
Josh
package com.jingsys.money;
import java.util.ArrayList;
import android.app.Activity;
import android.database.Cursor;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.Spinner;
import com.jingsys.money.data.AccountsDbAdapter;
import com.jingsys.money.data.MoneyDbAdapterFactory;
import com.jingsys.money.data.TransactionDbAdapter;
public class EditTransaction extends Activity {
private DatePicker mDate;
private EditText mDescription;
private EditText mNumber;
private EditText mAmount;
private Spinner mFromAccount;
private Spinner mToAccount;
private EditText mComments;
private TransactionDbAdapter transData;
private AccountsDbAdapter accountData;
private Cursor mFrom;
private Cursor mTo;
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.transaction_edit);
mDate = (DatePicker) findViewById(R.id.trans_date);
mDescription = (EditText) findViewById(R.id.account_name);
mNumber = (EditText) findViewById(R.id.trans_number);
mAmount = (EditText) findViewById(R.id.trans_amount);
mComments = (EditText) findViewById(R.id.trans_comments);
mFromAccount = (Spinner) findViewById(R.id.trans_from);
mToAccount = (Spinner) findViewById(R.id.trans_to);
XML file
?xml version=1.0 encoding=UTF-8?
TableLayout xmlns:android=http://schemas.android.com/apk/res/
android
android:layout_width=fill_parent
android:layout_height=fill_parent
android:stretchColumns=1
TableRow
TextView android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=@string/transaction_date /
DatePicker android:id=@+id/trans_date
android:layout_width=wrap_content
android:layout_height=wrap_content /
/TableRow
TableRow
TextView android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=@string/transaction_description /
EditText android:id=@+id/trans_descr
android:layout_width=wrap_content
android:layout_height=wrap_content/
/TableRow
TableRow
TextView android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=@string/transaction_number/
EditText android:id=@+id/trans_number
android:layout_width=wrap_content
android:layout_height=wrap_content/
/TableRow
TableRow
TextView android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=@string/transaction_amount/
EditText android:id=@+id/trans_amount
android:layout_width=wrap_content
android:layout_height=wrap_content/
/TableRow
TableRow
TextView android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=@string/transaction_from/
Spinner android:id=@+id/trans_from
android:layout_width=wrap_content
android:layout_height=fill_parent/
/TableRow
TableRow
TextView
[android-developers] Re: Null pointer exception when finding views by Id
Sometimes R.java is corrupted. It helps to clean everything either
from within Eclipse or manually (delete bin/ and R.java) and rebuild
from scratch.
Peli
On Mar 27, 2:44 pm, kaiping [EMAIL PROTECTED] wrote:
I am sure, Actually the R.id.account_name was a type I forgot to fix.
But, even the once that are in there return null.
On Mar 27, 12:16 am, Dan U. [EMAIL PROTECTED] wrote:
Are you sure ALL the findViewById return null? This one does for sure:
mDescription = (EditText) findViewById(R.id.account_name); since there
is no account_name id in your layout.
On Mar 26, 6:19 am,kaiping[EMAIL PROTECTED] wrote:
Thanks for the idea. I have confirmed that the file is named
transaction_edit.xml.
On Mar 26, 3:54 am, Dan U. [EMAIL PROTECTED] wrote:
Well, he needs to have the filename be transaction_edit.xml. Not sure
if it is.
On Mar 25, 5:29 am, Rick Genter [EMAIL PROTECTED] wrote:
Don't you need to name your layout transaction_edit in the XML file?
On Mar 25, 2008, at 5:26 AM,kaipingwrote:
Hi, For one of my Activities All the findViewById() function returns
is null. I am really astonished by this behaviour because this same
function works fine in other parts of my application. I have posted
the code below. If anybody has any ideas that would be great
thanks,
Josh
package com.jingsys.money;
import java.util.ArrayList;
import android.app.Activity;
import android.database.Cursor;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.Spinner;
import com.jingsys.money.data.AccountsDbAdapter;
import com.jingsys.money.data.MoneyDbAdapterFactory;
import com.jingsys.money.data.TransactionDbAdapter;
public class EditTransaction extends Activity {
private DatePicker mDate;
private EditText mDescription;
private EditText mNumber;
private EditText mAmount;
private Spinner mFromAccount;
private Spinner mToAccount;
private EditText mComments;
private TransactionDbAdapter transData;
private AccountsDbAdapter accountData;
private Cursor mFrom;
private Cursor mTo;
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.transaction_edit);
mDate = (DatePicker) findViewById(R.id.trans_date);
mDescription = (EditText)
findViewById(R.id.account_name);
mNumber = (EditText) findViewById(R.id.trans_number);
mAmount = (EditText) findViewById(R.id.trans_amount);
mComments = (EditText) findViewById(R.id.trans_comments);
mFromAccount = (Spinner) findViewById(R.id.trans_from);
mToAccount = (Spinner) findViewById(R.id.trans_to);
XML file
?xml version=1.0 encoding=UTF-8?
TableLayout xmlns:android=http://schemas.android.com/apk/res/
android
android:layout_width=fill_parent
android:layout_height=fill_parent
android:stretchColumns=1
TableRow
TextView android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=@string/transaction_date /
DatePicker android:id=@+id/trans_date
android:layout_width=wrap_content
android:layout_height=wrap_content /
/TableRow
TableRow
TextView android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=@string/transaction_description /
EditText android:id=@+id/trans_descr
android:layout_width=wrap_content
android:layout_height=wrap_content/
/TableRow
TableRow
TextView android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=@string/transaction_number/
EditText android:id=@+id/trans_number
android:layout_width=wrap_content
android:layout_height=wrap_content/
/TableRow
TableRow
TextView android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=@string/transaction_amount/
EditText android:id=@+id/trans_amount
android:layout_width=wrap_content
android:layout_height=wrap_content/
/TableRow
TableRow
TextView android:layout_width=wrap_content
[android-developers] Re: Null pointer exception when finding views by Id
Thanks for the idea. I have confirmed that the file is named
transaction_edit.xml.
On Mar 26, 3:54 am, Dan U. [EMAIL PROTECTED] wrote:
Well, he needs to have the filename be transaction_edit.xml. Not sure
if it is.
On Mar 25, 5:29 am, Rick Genter [EMAIL PROTECTED] wrote:
Don't you need to name your layout transaction_edit in the XML file?
On Mar 25, 2008, at 5:26 AM,kaipingwrote:
Hi, For one of my Activities All the findViewById() function returns
is null. I am really astonished by this behaviour because this same
function works fine in other parts of my application. I have posted
the code below. If anybody has any ideas that would be great thanks,
Josh
package com.jingsys.money;
import java.util.ArrayList;
import android.app.Activity;
import android.database.Cursor;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.Spinner;
import com.jingsys.money.data.AccountsDbAdapter;
import com.jingsys.money.data.MoneyDbAdapterFactory;
import com.jingsys.money.data.TransactionDbAdapter;
public class EditTransaction extends Activity {
private DatePicker mDate;
private EditText mDescription;
private EditText mNumber;
private EditText mAmount;
private Spinner mFromAccount;
private Spinner mToAccount;
private EditText mComments;
private TransactionDbAdapter transData;
private AccountsDbAdapter accountData;
private Cursor mFrom;
private Cursor mTo;
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.transaction_edit);
mDate = (DatePicker) findViewById(R.id.trans_date);
mDescription = (EditText) findViewById(R.id.account_name);
mNumber = (EditText) findViewById(R.id.trans_number);
mAmount = (EditText) findViewById(R.id.trans_amount);
mComments = (EditText) findViewById(R.id.trans_comments);
mFromAccount = (Spinner) findViewById(R.id.trans_from);
mToAccount = (Spinner) findViewById(R.id.trans_to);
XML file
?xml version=1.0 encoding=UTF-8?
TableLayout xmlns:android=http://schemas.android.com/apk/res/
android
android:layout_width=fill_parent
android:layout_height=fill_parent
android:stretchColumns=1
TableRow
TextView android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=@string/transaction_date /
DatePicker android:id=@+id/trans_date
android:layout_width=wrap_content
android:layout_height=wrap_content /
/TableRow
TableRow
TextView android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=@string/transaction_description /
EditText android:id=@+id/trans_descr
android:layout_width=wrap_content
android:layout_height=wrap_content/
/TableRow
TableRow
TextView android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=@string/transaction_number/
EditText android:id=@+id/trans_number
android:layout_width=wrap_content
android:layout_height=wrap_content/
/TableRow
TableRow
TextView android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=@string/transaction_amount/
EditText android:id=@+id/trans_amount
android:layout_width=wrap_content
android:layout_height=wrap_content/
/TableRow
TableRow
TextView android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=@string/transaction_from/
Spinner android:id=@+id/trans_from
android:layout_width=wrap_content
android:layout_height=fill_parent/
/TableRow
TableRow
TextView android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=@string/transaction_to/
Spinner android:id=@+id/trans_to
android:layout_width=wrap_content
android:layout_height=fill_parent/
/TableRow
TableRow
TextView android:layout_width=wrap_content
android:layout_height=wrap_content
android:text=@string/transaction_comments/
EditText android:id=@+id/trans_comments
