[android-beginners] Get file name from Uri
Hello, I am using content provider to access images in phone gallery and everything works fine except one thing that I want to get the physical file name of images I access. Can I get a java.io.File object from android.net.Uri object? if no, is there any other way to accomplish such a task? I just need to know the file name! --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: Hello MapView tutorial
Well I can't get this working. I've gone as far as step 6 of the
tutorial, where it says You can actually run this now, but all it
does is allow you to pan around the map. So my class is very simple:
public class HelloMapView extends MapActivity {
LinearLayout linearLayout;
MapView mapView;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {;
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
@Override
protected boolean isRouteDisplayed() {
return false;
}
}
...and the manifest is as already posted above. The error again is:
07-22 09:00:25.421: ERROR/AndroidRuntime(724):
java.lang.IllegalAccessError: cross-loader access from pre-verified
class
07-22 09:00:25.421: ERROR/AndroidRuntime(724): at
dalvik.system.DexFile.defineClass(Native Method)
07-22 09:00:25.421: ERROR/AndroidRuntime(724): at
dalvik.system.DexFile.loadClass(DexFile.java:193)
07-22 09:00:25.421: ERROR/AndroidRuntime(724): at
dalvik.system.PathClassLoader.findClass(PathClassLoader.java:203)
07-22 09:00:25.421: ERROR/AndroidRuntime(724): at
java.lang.ClassLoader.loadClass(ClassLoader.java:573)
07-22 09:00:25.421: ERROR/AndroidRuntime(724): at
java.lang.ClassLoader.loadClass(ClassLoader.java:532)
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[android-beginners] Query on PicSwitcher
Hi, I was wondering if in any way I can set a bitmap into an PicSwitcher? My initial finding suggest me that perhaps no such function such as SetImageBitmapResource( ) is available for PicSwitcher class? So does that mean I cannot set a Bitmap into a PicSwitcher? thanks regards, Arin --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: Query on PicSwitcher
Mistake, It is not picswitcher, it is ImageSwitcher... sorry for the confusion On Jul 22, 2:41 pm, arin arinv1618b...@gmail.com wrote: Hi, I was wondering if in any way I can set a bitmap into an PicSwitcher? My initial finding suggest me that perhaps no such function such as SetImageBitmapResource( ) is available for PicSwitcher class? So does that mean I cannot set a Bitmap into a PicSwitcher? thanks regards, Arin --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: Why so slow
And what does your application exactly? On Tue, Jul 21, 2009 at 7:15 PM, yves yves5...@googlemail.com wrote: Hi, Iam developing on Eclipse and I already set the Emulator Parameter to EDGE-Speed. The Problem is, the application runs fast on my Emulator but very slow on my device. Thanks Yves --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: Get file name from Uri
Hi,
The problem is that it should be documented in the Android Reference,
here:
http://developer.android.com/reference/android/provider/MediaStore.Images.html
http://developer.android.com/reference/android/provider/MediaStore.Images.ImageColumns.html
But, as far as i understand, it's not complete. Fortunately, we can
check it in a different way.
android code
Uri u = MediaStore.Images.Media.EXTERNAL_CONTENT_URI; //sdcard
only
Cursor c = managedQuery(u, null, null, null, null);
if (c.moveToFirst()) {
do {
int max = c.getColumnCount();
for (int i = 0; i max; i++) {
String colName = c.getColumnName(i);
String value = c
.getString(c.getColumnIndex(colName));
if (colName != null){
Log.d(columnName: , colName);
}
if (value != null) {
Log.d(value, value);
}
}
} while (c.moveToNext());
}
/android code
Check LogCat and you'll notice that we have all column names with
their values. I suppose, you'd be interested in:
07-22 12:50:09.973: DEBUG/columnName:(3049): _data
07-22 12:50:09.973: DEBUG/value(3049): /sdcard/download/vienna-s-
schonbrunn-zoo-and-giant-ferris-wheel-in-vienna-1.jpg
(...)
07-22 12:50:09.983: DEBUG/columnName:(3049): _display_name
07-22 12:50:09.983: DEBUG/value(3049): vienna-s-schonbrunn-zoo-and-
giant-ferris-wheel-in-vienna-1.jpg
If you have got any questions, don't hesitate to ask.
Greetings!
On Jul 22, 10:28 am, Mina Shokry minasho...@gmail.com wrote:
Hello,
I am using content provider to access images in phone gallery and
everything works fine except one thing that I want to get the physical
file name of images I access. Can I get a java.io.File object from
android.net.Uri object?
if no, is there any other way to accomplish such a task?
I just need to know the file name!
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[android-beginners] a question about final variable and multiple constructors
Hi
I ran into a compiler error saying The blank final field x may
not have been initialized while I was extending ViewGroup to make
another UI thing by modifying SlidingDrawer.
The fact is I'd already assigned some value to my final variable in
the 3rd constructor from ViewGroup, and I left the 1st and 2nd
constructors nothing but the auto-genned super()s.
But for some reason this error only showed up at the 1st
constructor. And if I commented out the first constructor, the error
will just disappear instead of complaining about my empty 2nd
constructor.
I'm new to Java and Eclipse, so not sure if this is a Java or
Android thing, hope somebody stump upon here happens to have some
clue :)
BTW my code:
private final mHandleId;
private final mContentId;
public DeckView(Context context) {
super(context);
// TODO Auto-generated constructor stub
}
public DeckView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public DeckView(Context context, AttributeSet attrs, int defStyle)
{
super(context, attrs, defStyle);
TypedArray a = context.obtainStyledAttributes
(attrs,R.styleable.DeckView,defStyle,0);
int orientation = a.getInt
(R.styleable.SlidingDrawer_orientation, ORIENTATION_HORIZONTAL);
mVertical = orientation == ORIENTATION_HORIZONTAL;
mBottomOffset=(int)a.getDimension
(R.styleable.SlidingDrawer_bottomOffset, 0.0f);
mTopOffset=(int)a.getDimension
(R.styleable.SlidingDrawer_topOffset,0.0f);
mAllowSingleTap=a.getBoolean
(R.styleable.SlidingDrawer_allowSingleTap, true);
int handleID = a.getResourceId
(R.styleable.SlidingDrawer_handle, 0);
if(handleID == 0) {
throw new IllegalArgumentException(The handle attribute
is required and must refer to a valid child);
}
int contentID = a.getResourceId
(R.styleable.SlidingDrawer_content, 0);
if(contentID == 0) {
throw new IllegalArgumentException(The content attribute
is requried and must refer to a valid child);
}
mHandleId = handleID;
mContentId = contentID;
a.recycle();
setAlwaysDrawnWithCacheEnabled(false);
}
THANKS!
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[android-beginners] Re: [android-beginners]
Read the google docs on the android sdk site. Android Apps Developer On Jul 22, 2009 6:58 AM, saurabh sinha saurso...@gmail.com wrote: what is difference between intent and intent-filter in android --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: a question about final variable and multiple constructors
Hi
First of all, your code is a mess, and you shouldn't attach such
snippets. Please be more careful, and make sure it'd be easy to read
and compile. If it's not possible to compile then at least eliminate
the most basic errors (e.g. mHandleId has no type, there is no class
declaration etc.). Then, there is no x field in your code ;)
Now, to the point. You can declare blank (without value) finals, but
then all constructors MUST initialize it. This is a Java rule. So,
either initialize it in all constructors, or remove the first two of
them [constructors] if not needed.
On Jul 22, 3:06 pm, nikki nikki_...@pegatroncorp.com wrote:
Hi
I ran into a compiler error saying The blank final field x may
not have been initialized while I was extending ViewGroup to make
another UI thing by modifying SlidingDrawer.
The fact is I'd already assigned some value to my final variable in
the 3rd constructor from ViewGroup, and I left the 1st and 2nd
constructors nothing but the auto-genned super()s.
But for some reason this error only showed up at the 1st
constructor. And if I commented out the first constructor, the error
will just disappear instead of complaining about my empty 2nd
constructor.
I'm new to Java and Eclipse, so not sure if this is a Java or
Android thing, hope somebody stump upon here happens to have some
clue :)
BTW my code:
private final mHandleId;
private final mContentId;
public DeckView(Context context) {
super(context);
// TODO Auto-generated constructor stub
}
public DeckView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public DeckView(Context context, AttributeSet attrs, int defStyle)
{
super(context, attrs, defStyle);
TypedArray a = context.obtainStyledAttributes
(attrs,R.styleable.DeckView,defStyle,0);
int orientation = a.getInt
(R.styleable.SlidingDrawer_orientation, ORIENTATION_HORIZONTAL);
mVertical = orientation == ORIENTATION_HORIZONTAL;
mBottomOffset=(int)a.getDimension
(R.styleable.SlidingDrawer_bottomOffset, 0.0f);
mTopOffset=(int)a.getDimension
(R.styleable.SlidingDrawer_topOffset,0.0f);
mAllowSingleTap=a.getBoolean
(R.styleable.SlidingDrawer_allowSingleTap, true);
int handleID = a.getResourceId
(R.styleable.SlidingDrawer_handle, 0);
if(handleID == 0) {
throw new IllegalArgumentException(The handle attribute
is required and must refer to a valid child);
}
int contentID = a.getResourceId
(R.styleable.SlidingDrawer_content, 0);
if(contentID == 0) {
throw new IllegalArgumentException(The content attribute
is requried and must refer to a valid child);
}
mHandleId = handleID;
mContentId = contentID;
a.recycle();
setAlwaysDrawnWithCacheEnabled(false);
}
THANKS!
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[android-beginners] Mulittouch in android?
Hi, Is the multitouch now enabled in android? - I've seen a hero with multitouch and zoom gesture..is it enabled in the new devices? 10x --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] How to Make my device sleep
PowerManager.goToSleep(long time) method seems to not work. Because I don't get a PowerManager instance. Instead, I use IPowerManager interface: IPowerManager.stub.asInterface(ServiceManager.getService (power)).goTosleep(1000); Why this code doesnt work? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] What is the package name and the Create Activity in wizard of new project (eclipse)
Hi, im really newbie to java. I know some php and c# and want to start to program for android phones. I get stuck in the very first steps. I already have an eclipse ide with the sdk and the android plugin, but when i try to made a new project it ask me for two things that i have no idea what means. Package name (force) Create Activity (optional) Searching by internet i found that is the same that in java, but i dont know a lot of java, so... ¿any help? By the way, if you know any online tutorial for dummys to get starting to java oriented to android, it would be nice. Thanks for your time and sorry for my english, im spanish :) --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: [android-beginners]
Perhaps it was done by mistake. We shouldn't assume. On Tue, Jul 21, 2009 at 4:18 PM, Oliver Rennfort anubis...@gmail.comwrote: Asking a question once is ok. Repeating them will not give you a faster answer. It just spamms our in box with it. Thank you. Android Apps Developer On Jul 21, 2009 4:16 PM, saurabh sinha saurso...@gmail.com wrote: what is pending Intent and how it differ from Intent --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] a problem with connection Http
Hello every body, and excuse me for my poor English .
I'm trying de build an activity which connect to a servlet. But the command
execute (httpGet) doesn't work!! i write the permission of internet in the
manifest.xml, but it doesn't work!!
heres my code its supposed to connect to the servlet: and thank you
import java.io.InputStream;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.DefaultHttpClient;
import org.xml.sax.InputSource;
import org.xml.sax.XMLReader;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.EditText;
public class Connect extends Activity {
/** Called when the activity is first created. */
private String adresse = new String(
http://localhost:8080/Test_tomcat/Testt;);
private EditText mTitleText;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mTitleText = (EditText) findViewById(R.id.message);
connect(adresse);
}
public void connect(String url){
try {
HttpClient httpclient = new DefaultHttpClient();
// Prepare a request object
HttpGet httpget = new HttpGet(url);
// Execute the request
HttpResponse response;
try {
response = httpclient.execute(httpget);
mTitleText.append(connexion);
// Get hold of the response entity
HttpEntity entity = response.getEntity();
// If the response does not enclose an entity, there is no
need
// to worry about connection release
if (entity != null) {
mTitleText.append(response.getStatusLine().toString());
}
}catch (Exception e) {mTitleText.append(connexion);
}
httpclient.getConnectionManager().shutdown();
} catch (Exception e) {
Log.e(Connect, exception au niveau de l'adresse);
}
}
}
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[android-beginners] hi
Hi i want to know the information regarding the deployment of the user application(i.e my own application) on to the nokia internet tablet(N810) and on which i loaded with the Android OS (on N810) please guide me...i hope anyone will help me in this regard...reply me as early as possible... -- Regards, prasadNSRS +91 9393858787 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Switching layouts
Hello there!
I'm a newbie in Android programming, and was exploring the possibility
to switch between more than - one - layouts (i.e. more pages?).
So I've created a new XML layout page (called second.xml) and created
some things in there. At least I've created a button to switch back to
the first layout, but a NullPointerException fires up when the
application starts, and that only for the back button, while the
next button just works great.
Any suggestion?
Thanks :)
package com.elegos.test;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class ListViewTest extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TextView myText = (TextView)findViewById(R.id.myTextView);
Button nextButton = (Button)findViewById(R.id.ButtonNext);
Button backButton = (Button)findViewById(R.id.ButtonBack);
nextButton.setOnClickListener(getCListener(R.layout.second));
try {backButton.setOnClickListener(getCListener
(R.layout.main));} catch(Exception e) {myText.append(\n+e.toString
());}
}
final private OnClickListener getCListener(final int layout) {
return new Button.OnClickListener() {
public void onClick(View v) {
setContentView(layout);
}
};
}
}
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[android-beginners] Re: How to pass User created object between two Activity in same Application?
Thanks guys!
These two examples are exactly what I was looking for! :-)
AudioDroid
On Jul 15, 10:57 am, MrChaz mrchazmob...@googlemail.com wrote:
If your class implements Parcelable then you can use add it to the
intent that you're calling via putExtra()
e.g.
ClassA bar = new ClassA(0, foo);
Intent i = new Intent(this, Activity.class);
i.putExtra(MyClass, bar);
An example of implementing Parcelable is below, Serializable also
seems to require a serialVersionUID variable but eclipse can generate
that for you.
public class ClassA implements Parcelable, Serializable{
private int _id;
private String _name;
public ClassA(int id, String name){
_id = id;
_name = name;
}
public static final Parcelable.CreatorClassA CREATOR = new
Parcelable.CreatorClassA() {
public ClassA createFromParcel(Parcel in) {
int id = in.readInt();
String name = in.readString();
return new ClassA(id, name);
}
public ClassA [] newArray(int size) {
return new ClassA [size];
}
};
public int describeContents() {
// TODO Auto-generated method stub
return 0;
}
public void writeToParcel(Parcel arg0, int arg1) {
arg0.writeInt(_id);
arg0.writeString(_name);
}}
On Jul 15, 2:22 am, Mapara,Harshit Nitinkumar hnmap...@gmail.com
wrote:
Hi All,
Let say I have one class :
Class A {
int id; String name;
public A(int id, String name) { this.id = id; this.name = name;}
}
How do I pass object of A between two Activity classes in a same
application ?
I came across the Parcelable interface, but I couldn't find good
example.
Thanks
Harshit
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[android-beginners] The FTP uploading program does not work on Android Emulator
Dear Sir:
I developed a FTP uploading program which upload the string to a text
file through FTP. This program only works well as an Java application
on PC, but when I put the same code to Android application on
Emulator, Android always begins to grow heap and allocate memory when
the code calls the functionURLConnection.getOutputStream(), and
finally Android is Out of memory. I have suffered from this problem
for a week. If you could help me, I really appreciate!
Below is the code and debug trace got by adb logcat. (I replace the
host, user, password and targetfile with some common strings.)
String host = hostname;
String user = username;
String password = password;
String targetfile = filename;
try{
URL url= new URL(ftp://+ user+ :+ password+
@+ host+ /+ targetfile + ;type=i);
URLConnection urlc = url.openConnection();
Log.d(DEBUG, openconnection done);
OutputStream os = urlc.getOutputStream();//
problem happens from this line
Log.d(DEBUG,get OutputStream);
String packet_str = Uploading;
byte[] buf = packet_str.getBytes();
os.write(buf);
Log.d(DEBUG,write done);
os.close();
urlc= null;
}catch (Exception E) {
Log.d(DEBUG,Erro Happen! + E.getMessage
());
E.printStackTrace();
}
Below is the trace:
D/DEBUG ( 719): openconnection done
D/InetAddress( 719): xzzb.hostrator.com: 64.191.109.6 (family 2,
proto 6)
D/dalvikvm( 637): GC freed 2854 objects / 162328 bytes in 177ms
D/dalvikvm( 719): GC freed 14245 objects / 422552 bytes in 84ms
D/dalvikvm( 719): GC freed 19713 objects / 529824 bytes in 75ms
D/dalvikvm( 719): GC freed 17813 objects / 501656 bytes in 78ms
D/dalvikvm( 719): GC freed 23615 objects / 567184 bytes in 82ms
.
D/dalvikvm( 719): GC freed 74935 objects / 1798504 bytes in 162ms
D/dalvikvm( 719): GC freed 74935 objects / 1798504 bytes in 155ms
D/dalvikvm( 719): GC freed 43212 objects / 1037152 bytes in 118ms
I/dalvikvm-heap( 719): Forcing collection of SoftReferences for
9437196-byte allocation
D/dalvikvm( 719): GC freed 0 objects / 0 bytes in 62ms
E/dalvikvm-heap( 719): Out of memory on a 9437196-byte allocation.
I/dalvikvm( 719): main prio=5 tid=3 RUNNABLE
I/dalvikvm( 719): | group=main sCount=0 dsCount=0 s=0
obj=0x40018e70
I/dalvikvm( 719): | sysTid=719 nice=0 sched=0/0 handle=-1097544548
I/dalvikvm( 719): at java.lang.AbstractStringBuilder.enlargeBuffer
(AbstractStringBuilder.java:~99)
I/dalvikvm( 719): at java.lang.AbstractStringBuilder.append0
(AbstractStringBuilder.java:153)
I/dalvikvm( 719): at java.lang.StringBuffer.append
(StringBuffer.java:128)
I/dalvikvm( 719): at
org.apache.harmony.luni.internal.net.www.protocol.ftp.FtpURLConnection.readLine
(FtpURLConnection.java:403)
I/dalvikvm( 719): at
org.apache.harmony.luni.internal.net.www.protocol.ftp.FtpURLConnection.getReply
(FtpURLConnection.java:355)
I/dalvikvm( 719): at
org.apache.harmony.luni.internal.net.www.protocol.ftp.FtpURLConnection.port
(FtpURLConnection.java:391)
I/dalvikvm( 719): at
org.apache.harmony.luni.internal.net.www.protocol.ftp.FtpURLConnection.connectInternal
(FtpURLConnection.java:232)
I/dalvikvm( 719): at
org.apache.harmony.luni.internal.net.www.protocol.ftp.FtpURLConnection.connect
(FtpURLConnection.java:189)
I/dalvikvm( 719): at
org.apache.harmony.luni.internal.net.www.protocol.ftp.FtpURLConnection.getOutputStream
(FtpURLConnection.java:342)
I/dalvikvm( 719): at com.example.sendonce.sendonce$1.onClick
(sendonce.java:118)
I/dalvikvm( 719): at android.view.View.performClick(View.java:2179)
I/dalvikvm( 719): at android.view.View.onTouchEvent(View.java:3828)
I/dalvikvm( 719): at android.widget.TextView.onTouchEvent
(TextView.java:6291)
I/dalvikvm( 719): at android.view.View.dispatchTouchEvent
(View.java:
3368)
I/dalvikvm( 719): at android.view.ViewGroup.dispatchTouchEvent
(ViewGroup.java:863)
I/dalvikvm( 719): at android.view.ViewGroup.dispatchTouchEvent
(ViewGroup.java:863)
I/dalvikvm( 719): at android.view.ViewGroup.dispatchTouchEvent
(ViewGroup.java:863)
I/dalvikvm( 719): at android.view.ViewGroup.dispatchTouchEvent
(ViewGroup.java:863)
I/dalvikvm( 719): at com.android.internal.policy.impl.PhoneWindow
$DecorView.superDispatchTouchEvent(PhoneWindow.java:1707)
I/dalvikvm( 719): at
com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent
(PhoneWindow.java:1197)
I/dalvikvm( 719): at android.app.Activity.dispatchTouchEvent
(Activity.java:1993)
I/dalvikvm( 719): at com.android.internal.policy.impl.PhoneWindow
$DecorView.dispatchTouchEvent(PhoneWindow.java:1691)
I/dalvikvm( 719): at
[android-beginners] Re: a problem with connection Http
My guess is you are using the emulator here. To the emulator,
localhost will refer to the emulator itself. It is its own virtual
device, you may consider it its own entity on the network, so you'll
need to use a proper hostname or IP address for the servlet you want
to access.
Cheers,
Justin
Android Team @ Google
On Jul 22, 6:47 am, Ahmed BEJAOUI ahmed.bejaoui...@gmail.com wrote:
Hello every body, and excuse me for my poor English .
I'm trying de build an activity which connect to a servlet. But the command
execute (httpGet) doesn't work!! i write the permission of internet in the
manifest.xml, but it doesn't work!!
heres my code its supposed to connect to the servlet: and thank you
import java.io.InputStream;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.DefaultHttpClient;
import org.xml.sax.InputSource;
import org.xml.sax.XMLReader;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.EditText;
public class Connect extends Activity {
/** Called when the activity is first created. */
private String adresse = new
String(http://localhost:8080/Test_tomcat/Testt;);
private EditText mTitleText;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mTitleText = (EditText) findViewById(R.id.message);
connect(adresse);
}
public void connect(String url){
try {
HttpClient httpclient = new DefaultHttpClient();
// Prepare a request object
HttpGet httpget = new HttpGet(url);
// Execute the request
HttpResponse response;
try {
response = httpclient.execute(httpget);
mTitleText.append(connexion);
// Get hold of the response entity
HttpEntity entity = response.getEntity();
// If the response does not enclose an entity, there is no
need
// to worry about connection release
if (entity != null) {
mTitleText.append(response.getStatusLine().toString());
}
}catch (Exception e) {mTitleText.append(connexion);
}
httpclient.getConnectionManager().shutdown();
} catch (Exception e) {
Log.e(Connect, exception au niveau de l'adresse);
}
}
}
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[android-beginners] Re: a question about final variable and multiple constructors
Hi Kacper86,
Thanks for your suggestion, I will make sure I provide more
completed code next time. And I actually figured out the problem.
The reason is because the auto-generated constructor (the one takes in
only one Context object) calls super() in its body, which seems to the
compiler that it will not initialize the final variable by any
chances. The second constructor (the one takes in 2 parameters) calls
this() with 3 parameters, which leads the compiler to the third
constructor where the final variables are actually assigned some
value.
On Jul 22, 10:09 pm, Kacper86 cpph...@gmail.com wrote:
Hi
First of all, your code is a mess, and you shouldn't attach such
snippets. Please be more careful, and make sure it'd be easy to read
and compile. If it's not possible to compile then at least eliminate
the most basic errors (e.g. mHandleId has no type, there is no class
declaration etc.). Then, there is no x field in your code ;)
Now, to the point. You can declare blank (without value) finals, but
then all constructors MUST initialize it. This is a Java rule. So,
either initialize it in all constructors, or remove the first two of
them [constructors] if not needed.
On Jul 22, 3:06 pm, nikki nikki_...@pegatroncorp.com wrote:
Hi
I ran into a compiler error saying The blank final field x may
not have been initialized while I was extending ViewGroup to make
another UI thing by modifying SlidingDrawer.
The fact is I'd already assigned some value to my final variable in
the 3rd constructor from ViewGroup, and I left the 1st and 2nd
constructors nothing but the auto-genned super()s.
But for some reason this error only showed up at the 1st
constructor. And if I commented out the first constructor, the error
will just disappear instead of complaining about my empty 2nd
constructor.
I'm new to Java and Eclipse, so not sure if this is a Java or
Android thing, hope somebody stump upon here happens to have some
clue :)
BTW my code:
private final mHandleId;
private final mContentId;
public DeckView(Context context) {
super(context);
// TODO Auto-generated constructor stub
}
public DeckView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public DeckView(Context context, AttributeSet attrs, int defStyle)
{
super(context, attrs, defStyle);
TypedArray a = context.obtainStyledAttributes
(attrs,R.styleable.DeckView,defStyle,0);
int orientation = a.getInt
(R.styleable.SlidingDrawer_orientation, ORIENTATION_HORIZONTAL);
mVertical = orientation == ORIENTATION_HORIZONTAL;
mBottomOffset=(int)a.getDimension
(R.styleable.SlidingDrawer_bottomOffset, 0.0f);
mTopOffset=(int)a.getDimension
(R.styleable.SlidingDrawer_topOffset,0.0f);
mAllowSingleTap=a.getBoolean
(R.styleable.SlidingDrawer_allowSingleTap, true);
int handleID = a.getResourceId
(R.styleable.SlidingDrawer_handle, 0);
if(handleID == 0) {
throw new IllegalArgumentException(The handle attribute
is required and must refer to a valid child);
}
int contentID = a.getResourceId
(R.styleable.SlidingDrawer_content, 0);
if(contentID == 0) {
throw new IllegalArgumentException(The content attribute
is requried and must refer to a valid child);
}
mHandleId = handleID;
mContentId = contentID;
a.recycle();
setAlwaysDrawnWithCacheEnabled(false);
}
THANKS!
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[android-beginners] Re: What is the package name and the Create Activity in wizard of new project (eclipse)
Please take a look at the HelloWorld tutorial: http://developer.android.com/guide/tutorials/hello-world.html -- Jack Ha Open Source Development Center ・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 Jul 22, 4:57 am, Carlos Maldonado carlosmaldonadogo...@gmail.com wrote: Hi, im really newbie to java. I know some php and c# and want to start to program for android phones. I get stuck in the very first steps. I already have an eclipse ide with the sdk and the android plugin, but when i try to made a new project it ask me for two things that i have no idea what means. Package name (force) Create Activity (optional) Searching by internet i found that is the same that in java, but i dont know a lot of java, so... ¿any help? By the way, if you know any online tutorial for dummys to get starting to java oriented to android, it would be nice. Thanks for your time and sorry for my english, im spanish :) --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: Mulittouch in android?
Short answer is that the device driver supports it but the functionality is not exposed in the Java API. The hero most likely uses a hack see: http://groups.google.com/group/android-platform/browse_thread/thread/209b512a9fdf7367?pli=1 for the gruesome details. Dave On Wed, Jul 22, 2009 at 7:41 AM, Androiddeveloper4andr...@gmail.com wrote: Hi, Is the multitouch now enabled in android? - I've seen a hero with multitouch and zoom gesture..is it enabled in the new devices? 10x --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: Slow to load emulator with eclipse
Yes you only need to take the hit on startup once. After that it's almost instantaneous to execute a new app. I'm in the same boat with an IBM T43... but the 2nd or subsequent runs are really no problem. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: hi
adb push http://developer.android.com/guide/developing/tools/adb.html#move Yusuf Saib Android ·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 Jul 22, 4:02 am, prasad NSRS prasad.9...@gmail.com wrote: Hi i want to know the information regarding the deployment of the user application(i.e my own application) on to the nokia internet tablet(N810) and on which i loaded with the Android OS (on N810) please guide me...i hope anyone will help me in this regard...reply me as early as possible... -- Regards, prasadNSRS +91 9393858787 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: Get file name from Uri
thank you for this great help but unfortunately this isn't my case.
not me who created the cursor and iterate through it. I am just
receiving the Uri from another activity via an intent. and it isn't
good to iterate through all images to find one its Uri matches one I
received especially that I am not sure it will always be a Uri of an
image.
still can I get the file name?
On Jul 22, 4:04 pm, Kacper86 cpph...@gmail.com wrote:
Hi,
The problem is that it should be documented in the Android Reference,
here:
http://developer.android.com/reference/android/provider/MediaStore.Im...http://developer.android.com/reference/android/provider/MediaStore.Im...
But, as far as i understand, it's not complete. Fortunately, we can
check it in a different way.
android code
Uri u = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
//sdcard only
Cursor c = managedQuery(u, null, null, null, null);
if (c.moveToFirst()) {
do {
int max = c.getColumnCount();
for (int i = 0; i max; i++) {
String colName = c.getColumnName(i);
String value = c
.getString(c.getColumnIndex(colName));
if (colName != null){
Log.d(columnName: ,
colName);
}
if (value != null) {
Log.d(value, value);
}
}
} while (c.moveToNext());
}
/android code
Check LogCat and you'll notice that we have all column names with
their values. I suppose, you'd be interested in:
07-22 12:50:09.973: DEBUG/columnName:(3049): _data
07-22 12:50:09.973: DEBUG/value(3049): /sdcard/download/vienna-s-
schonbrunn-zoo-and-giant-ferris-wheel-in-vienna-1.jpg
(...)
07-22 12:50:09.983: DEBUG/columnName:(3049): _display_name
07-22 12:50:09.983: DEBUG/value(3049): vienna-s-schonbrunn-zoo-and-
giant-ferris-wheel-in-vienna-1.jpg
If you have got any questions, don't hesitate to ask.
Greetings!
On Jul 22, 10:28 am, Mina Shokry minasho...@gmail.com wrote:
Hello,
I am using content provider to access images in phone gallery and
everything works fine except one thing that I want to get the physical
file name of images I access. Can I get a java.io.File object from
android.net.Uri object?
if no, is there any other way to accomplish such a task?
I just need to know the file name!
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[android-beginners] Re: Basic java threading problems, code inside
Try to remove synchronized from stopThread() and startThread()
this worked, thanks!
On Jul 20, 7:52 pm, vladimir kroz vladimir.k...@gmail.com wrote:
Try to remove synchronized from stopThread() and startThread()
On Jul 17, 6:29 pm, Kevin Grant kevingra...@gmail.com wrote:
I understand the concept of threads, and it almost seems like I
understand how to implement them. This code executes properly until I
press the back button (to close), and then gives a This application
has stopped unexpectedly. Please try again. Well duh, I closed it!
Heres the code Im using:
(It is a slightly modified version of the example provided
here:http://www.helloandroid.com/node/243
using the modifications I found
here:http://stackoverflow.com/questions/680180/where-to-stop-destroy-threa...
)
The import Pi class comes from this website, its just an arbitrary
class that will perform a long calculation to show the example
http://blog.taragana.com/index.php/archive/calculate-pi-to-arbitrary-...
/*/
package com.example;
import com.example.Pi;
import android.app.Activity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class AndroidThreads extends Activity implements Runnable {
private String pi_string;
private TextView tv;
private ProgressDialog pd;
private volatile Thread runner;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
mp = MediaPlayer.create(getBaseContext(),
R.raw.camera_click); //this is using the slow.mp3 resource
tv = (TextView) this.findViewById(R.id.box);
tv.setText(Press submit to start calculation);
Button submit = (Button) findViewById(R.id.submit_btn);
submit.setOnClickListener(new OnClickListener(){
public void onClick(View v){
startThread();
}
});
}
public synchronized void startThread(){
if(runner == null){
pd = ProgressDialog.show(this, Working.., Calculating Pi,
true, false);
runner = new Thread(this);
runner.start();
}
}
public synchronized void stopThread(){
if(runner != null){
Thread moribund = runner;
runner = null;
moribund.interrupt();
}
}
public void run(){
pi_string = Pi.computePi(800).toString();
handler.sendEmptyMessage(0);
}
private Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
pd.dismiss();
tv.setText(pi_string);
}
};}
/*/
So like I said, this does everything I want it to do, except... it
gives the crash error when I exit the program.
*So what I need to know is why is it crashing, and how can I fix it?*
It seems to me like the threads aren't all finishing properly, so I
tried putting the stopThread() function into the onStop() and onDestroy
() overrides, but that didn't seem to make a difference. Appreciate
any input!
-kevin
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[android-beginners] how to program on application(not activity) exit ?
Hi all, I have requirement that needs to save data to a file. During multiple Activitiy screens, I add different data to a list and finally when user is not using the app (means if user exits app by pressing home button or call button), just before exiting that app, i want to save that data of the list to a file. coding before exiting activity screen is simple - by calling onDestory () method, but here I want not one activity but the application exit. So my question is How do I write a code that will be executed just before application exits ? I tried created one class extends Application, and then I override onTerminate() method, but it's not get called when I exit ( pressing home button on device) Plz help Thanks Harshit --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: Get file name from Uri
Hi,
Firstly, I'd like to recommend this article:
http://developer.android.com/guide/topics/providers/content-providers.html
Secondly, let's solve your problem (which you can solve on your own
after reading the article). The Uri is not supposed to carry a large
amount of data. You don't cast it to huge objects and directly query
it for the information. Think of it as an address. When you have an
address and a mean of transport you can get there and find whatever
you're looking for. To the point, if you have an Uri, you can use
Cursor and make a proper query, which can look like this:
android code
Uri u = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
Uri u2 = Uri.withAppendedPath(u, 1);
// this is what you have
// u2 == content://media/external/images/media/1
String[] projection = { MediaStore.Images.ImageColumns.DATA, /
*col1*/
MediaStore.Images.ImageColumns.DISPLAY_NAME
/*col2*/};
Cursor c = managedQuery(u2, projection, null, null, null);
if (c!=null c.moveToFirst()) {
String column0Value = c.getString(0);
String column1Value = c.getString(1);
Log.d(Data,column0Value);
Log.d(Display name,column1Value);
}
/android code
Obviously, you can reduce number of columns to the one you need the
most. The less number of columns we have to return, the more efficient
it will get.
On Jul 22, 8:41 pm, Mina Shokry minasho...@gmail.com wrote:
thank you for this great help but unfortunately this isn't my case.
not me who created the cursor and iterate through it. I am just
receiving the Uri from another activity via an intent. and it isn't
good to iterate through all images to find one its Uri matches one I
received especially that I am not sure it will always be a Uri of an
image.
still can I get the file name?
On Jul 22, 4:04 pm, Kacper86 cpph...@gmail.com wrote:
Hi,
The problem is that it should be documented in the Android Reference,
here:
http://developer.android.com/reference/android/provider/MediaStore.Im..
But, as far as i understand, it's not complete. Fortunately, we can
check it in a different way.
android code
Uri u = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
//sdcard only
Cursor c = managedQuery(u, null, null, null, null);
if (c.moveToFirst()) {
do {
int max = c.getColumnCount();
for (int i = 0; i max; i++) {
String colName = c.getColumnName(i);
String value = c
.getString(c.getColumnIndex(colName));
if (colName != null){
Log.d(columnName: ,
colName);
}
if (value != null) {
Log.d(value, value);
}
}
} while (c.moveToNext());
}
/android code
Check LogCat and you'll notice that we have all column names with
their values. I suppose, you'd be interested in:
07-22 12:50:09.973: DEBUG/columnName:(3049): _data
07-22 12:50:09.973: DEBUG/value(3049): /sdcard/download/vienna-s-
schonbrunn-zoo-and-giant-ferris-wheel-in-vienna-1.jpg
(...)
07-22 12:50:09.983: DEBUG/columnName:(3049): _display_name
07-22 12:50:09.983: DEBUG/value(3049): vienna-s-schonbrunn-zoo-and-
giant-ferris-wheel-in-vienna-1.jpg
If you have got any questions, don't hesitate to ask.
Greetings!
On Jul 22, 10:28 am, Mina Shokry minasho...@gmail.com wrote:
Hello,
I am using content provider to access images in phone gallery and
everything works fine except one thing that I want to get the physical
file name of images I access. Can I get a java.io.File object from
android.net.Uri object?
if no, is there any other way to accomplish such a task?
I just need to know the file name!
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google
Groups Android Beginners group.
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[android-beginners] Re: Hello MapView tutorial
Hi again, in another net my issue is solved. Maybe proxy...
Thanks Yusuf
2009/7/22 Neilz neilhorn...@googlemail.com
Well I can't get this working. I've gone as far as step 6 of the
tutorial, where it says You can actually run this now, but all it
does is allow you to pan around the map. So my class is very simple:
public class HelloMapView extends MapActivity {
LinearLayout linearLayout;
MapView mapView;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {;
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
@Override
protected boolean isRouteDisplayed() {
return false;
}
}
...and the manifest is as already posted above. The error again is:
07-22 09:00:25.421: ERROR/AndroidRuntime(724):
java.lang.IllegalAccessError: cross-loader access from pre-verified
class
07-22 09:00:25.421: ERROR/AndroidRuntime(724): at
dalvik.system.DexFile.defineClass(Native Method)
07-22 09:00:25.421: ERROR/AndroidRuntime(724): at
dalvik.system.DexFile.loadClass(DexFile.java:193)
07-22 09:00:25.421: ERROR/AndroidRuntime(724): at
dalvik.system.PathClassLoader.findClass(PathClassLoader.java:203)
07-22 09:00:25.421: ERROR/AndroidRuntime(724): at
java.lang.ClassLoader.loadClass(ClassLoader.java:573)
07-22 09:00:25.421: ERROR/AndroidRuntime(724): at
java.lang.ClassLoader.loadClass(ClassLoader.java:532)
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[android-beginners] Re: how to program on application(not activity) exit ?
It seems to me that you may be able to do what you intend to do by using SharedPreferences http://developer.android.com/reference/android/content/SharedPreferences.html The only thing to note is that this class is not supported across multiple processes. The other advantage with using SharedPreferences is that the data will be saved not only on exit, but also if the app is paused. Hope this helps, Balwinder Kaur Open Source Development Center ·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 Jul 22, 12:29 pm, Mapara,Harshit Nitinkumar hnmap...@gmail.com wrote: Hi all, I have requirement that needs to save data to a file. During multiple Activitiy screens, I add different data to a list and finally when user is not using the app (means if user exits app by pressing home button or call button), just before exiting that app, i want to save that data of the list to a file. coding before exiting activity screen is simple - by calling onDestory () method, but here I want not one activity but the application exit. So my question is How do I write a code that will be executed just before application exits ? I tried created one class extends Application, and then I override onTerminate() method, but it's not get called when I exit ( pressing home button on device) Plz help Thanks Harshit --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: Loading an image from remote server
Please refer to the post
http://groups.google.com/group/android-beginners/browse_thread/thread/a47cc5d8aa243879/4656cf7af994d182?lnk=gstq=base64#4656cf7af994d182
Balwinder Kaur
Open Source Development Center
·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 Jul 21, 9:27 pm, santu santu.gu...@gmail.com wrote:
Hi,
Thnx. This is working fine. But how to display base 64 images in
Android.
waiting for u r replies.
Thanks,
Santhosh
On Jul 21, 10:00 pm, Balwinder Kaur (T-Mobile) balwinder.k...@t-
mobile.com wrote:
Do you have the uses-permission
android:name=android.permission.INTERNET/uses-permission declared
in your AndroidManifest.xml file ?
I can see an ImageView in my Emulator with your snapshot of the
Emulator that you have up on your website :)
Balwinder Kaur
Open Source Development Center
·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 Jul 20, 3:32 am, santu santu.gu...@gmail.com wrote:
Hi ,
I have an issue when loading an image from remote location.
For this I am using UrlConnection to connect and getting the
InputStream .
my code snippet is as follows:
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
ImageView i = new ImageView(this);
i.setImageBitmap(getView(http://www.precentral.net/sites/
androidcentral.com/files/wp-migrate/2008/09/android-sdk.jpg));
setContentView(i);
}
public Bitmap getView(String myImageURL)
{
Bitmap bm = null;
try {
URL aURL = new URL(myImageURL);
URLConnection conn = aURL.openConnection();
conn.connect();
InputStream is = conn.getInputStream();
BufferedInputStream bis = new BufferedInputStream(is
);
bm = BitmapFactory.decodeStream(bis);
is.close();
bis.close();
} catch (IOException e)
{
Log.e(DEBUGTAG, Remtoe Image Exception, e);
}
return bm;
}
I don't know whats wrong with my code. But the image is not
displayed. Nor the Exception.
Can any one suggest me whats the problem.
Thanks in advance.
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[android-beginners] Re: Get file name from Uri
Thank you very much. this is exactly what I want.
thanks again.
On Jul 22, 11:38 pm, Kacper86 cpph...@gmail.com wrote:
Hi,
Firstly, I'd like to recommend this article:
http://developer.android.com/guide/topics/providers/content-providers...
Secondly, let's solve your problem (which you can solve on your own
after reading the article). The Uri is not supposed to carry a large
amount of data. You don't cast it to huge objects and directly query
it for the information. Think of it as an address. When you have an
address and a mean of transport you can get there and find whatever
you're looking for. To the point, if you have an Uri, you can use
Cursor and make a proper query, which can look like this:
android code
Uri u = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
Uri u2 = Uri.withAppendedPath(u, 1);
// this is what you have
// u2 == content://media/external/images/media/1
String[] projection = { MediaStore.Images.ImageColumns.DATA, /
*col1*/
MediaStore.Images.ImageColumns.DISPLAY_NAME
/*col2*/};
Cursor c = managedQuery(u2, projection, null, null, null);
if (c!=null c.moveToFirst()) {
String column0Value = c.getString(0);
String column1Value = c.getString(1);
Log.d(Data,column0Value);
Log.d(Display name,column1Value);
}
/android code
Obviously, you can reduce number of columns to the one you need the
most. The less number of columns we have to return, the more efficient
it will get.
On Jul 22, 8:41 pm, Mina Shokry minasho...@gmail.com wrote:
thank you for this great help but unfortunately this isn't my case.
not me who created the cursor and iterate through it. I am just
receiving the Uri from another activity via an intent. and it isn't
good to iterate through all images to find one its Uri matches one I
received especially that I am not sure it will always be a Uri of an
image.
still can I get the file name?
On Jul 22, 4:04 pm, Kacper86 cpph...@gmail.com wrote:
Hi,
The problem is that it should be documented in the Android Reference,
here:
http://developer.android.com/reference/android/provider/MediaStore.Im..
But, as far as i understand, it's not complete. Fortunately, we can
check it in a different way.
android code
Uri u = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
//sdcard only
Cursor c = managedQuery(u, null, null, null, null);
if (c.moveToFirst()) {
do {
int max = c.getColumnCount();
for (int i = 0; i max; i++) {
String colName =
c.getColumnName(i);
String value = c
.getString(c.getColumnIndex(colName));
if (colName != null){
Log.d(columnName: ,
colName);
}
if (value != null) {
Log.d(value, value);
}
}
} while (c.moveToNext());
}
/android code
Check LogCat and you'll notice that we have all column names with
their values. I suppose, you'd be interested in:
07-22 12:50:09.973: DEBUG/columnName:(3049): _data
07-22 12:50:09.973: DEBUG/value(3049): /sdcard/download/vienna-s-
schonbrunn-zoo-and-giant-ferris-wheel-in-vienna-1.jpg
(...)
07-22 12:50:09.983: DEBUG/columnName:(3049): _display_name
07-22 12:50:09.983: DEBUG/value(3049): vienna-s-schonbrunn-zoo-and-
giant-ferris-wheel-in-vienna-1.jpg
If you have got any questions, don't hesitate to ask.
Greetings!
On Jul 22, 10:28 am, Mina Shokry minasho...@gmail.com wrote:
Hello,
I am using content provider to access images in phone gallery and
everything works fine except one thing that I want to get the physical
file name of images I access. Can I get a java.io.File object from
android.net.Uri object?
if no, is there any other way to accomplish such a task?
I just need to know the file name!
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[android-beginners] Question about the annoyingly short screen time-out during a call...
Hi, According to my adb logcat, this is what happens when the phone shuts off the screen during a phone call: D/PhoneApp( 185): updateWakeState: keepScreenOn = false (isRinging false, showingDisc false) D/SurfaceFlinger( 134): About to give-up screen, flinger = 0x17b200 [screen then turns off] How do I go about changing this setting? (Or settings, as the case may be.) Do I look through the source, change the variable and resign the whole package? Or is there a simpler way of going about it? Thanks for your help. Note: I have seen hundreds of complaints about this from people other than me, but no solutions. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: Switching layouts
The findViewById will return a non-null Widget object, only if you
first called setContentView and inflated the layout that contains it.
That is why nextButton works and backButton is null - giving you your
NullPointerException.
For a simple application, an easier way to create 2 pages, would be to
create 2 activities and switch between them.
http://developer.android.com/reference/android/app/Activity.html
Btw, there is related interesting read at
http://android-developers.blogspot.com/2009/02/faster-screen-orientation-change.html
Balwinder Kaur
Open Source Development Center
·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 Jul 22, 2:27 am, elegos furlan.giac...@gmail.com wrote:
Hello there!
I'm a newbie in Android programming, and was exploring the possibility
to switch between more than - one - layouts (i.e. more pages?).
So I've created a new XML layout page (called second.xml) and created
some things in there. At least I've created a button to switch back to
the first layout, but a NullPointerException fires up when the
application starts, and that only for the back button, while the
next button just works great.
Any suggestion?
Thanks :)
package com.elegos.test;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class ListViewTest extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TextView myText = (TextView)findViewById(R.id.myTextView);
Button nextButton = (Button)findViewById(R.id.ButtonNext);
Button backButton = (Button)findViewById(R.id.ButtonBack);
nextButton.setOnClickListener(getCListener(R.layout.second));
try {backButton.setOnClickListener(getCListener
(R.layout.main));} catch(Exception e) {myText.append(\n+e.toString
());}
}
final private OnClickListener getCListener(final int layout) {
return new Button.OnClickListener() {
public void onClick(View v) {
setContentView(layout);
}
};
}
}
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[android-beginners] Re: how to program on application(not activity) exit ?
Saving a data is not a problem...I can save it by using File input/ ouput operaions. the problem is saving a data on particular event. And that event is Application exit. while app is running and user presses home button, what happens ? is application killed ? all activities are destroyed? I wrote a code in one activity's onDestroy() method. In normal situation it gets executed while leaving that activity, but when I press home button, it didn't. And after pressing home button, the app is starting from beginning. So it will not work what I wanted (saving a data (list of objects) ) before app exits. On Jul 22, 3:08 pm, Balwinder Kaur (T-Mobile) balwinder.k...@t- mobile.com wrote: It seems to me that you may be able to do what you intend to do by using SharedPreferences http://developer.android.com/reference/android/content/SharedPreferen... The only thing to note is that this class is not supported across multiple processes. The other advantage with using SharedPreferences is that the data will be saved not only on exit, but also if the app is paused. Hope this helps, Balwinder Kaur Open Source Development Center ·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 Jul 22, 12:29 pm, Mapara,Harshit Nitinkumar hnmap...@gmail.com wrote: Hi all, I have requirement that needs to save data to a file. During multiple Activitiy screens, I add different data to a list and finally when user is not using the app (means if user exits app by pressing home button or call button), just before exiting that app, i want to save that data of the list to a file. coding before exiting activity screen is simple - by calling onDestory () method, but here I want not one activity but the application exit. So my question is How do I write a code that will be executed just before application exits ? I tried created one class extends Application, and then I override onTerminate() method, but it's not get called when I exit ( pressing home button on device) Plz help Thanks Harshit --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: how to program on application(not activity) exit ?
Mapara,Harshit Nitinkumar wrote: while app is running and user presses home button, what happens ? is application killed ? all activities are destroyed? None of the above. The application is still running. http://developer.android.com/guide/practices/ui_guidelines/activity_task_design.html#tour I wrote a code in one activity's onDestroy() method. In normal situation it gets executed while leaving that activity, but when I press home button, it didn't. Correct. And after pressing home button, the app is starting from beginning. So it will not work what I wanted (saving a data (list of objects) ) before app exits. Save your data in onPause() or onStop(). Both of those will be called when: -- the user presses Home -- a call comes in and the user takes the call -- the user responds to a Notification -- etc. -- Mark Murphy (a Commons Guy) http://commonsware.com | http://twitter.com/commonsguy Android App Developer Training: http://commonsware.com/training.html --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: how to program on application(not activity) exit ?
Yeah...it works.. Thanks On Jul 22, 5:55 pm, Mark Murphy mmur...@commonsware.com wrote: Mapara,Harshit Nitinkumar wrote: while app is running and user presses home button, what happens ? is application killed ? all activities are destroyed? None of the above. The application is still running. http://developer.android.com/guide/practices/ui_guidelines/activity_t... I wrote a code in one activity's onDestroy() method. In normal situation it gets executed while leaving that activity, but when I press home button, it didn't. Correct. And after pressing home button, the app is starting from beginning. So it will not work what I wanted (saving a data (list of objects) ) before app exits. Save your data in onPause() or onStop(). Both of those will be called when: -- the user presses Home -- a call comes in and the user takes the call -- the user responds to a Notification -- etc. -- Mark Murphy (a Commons Guy)http://commonsware.com|http://twitter.com/commonsguy Android App Developer Training:http://commonsware.com/training.html --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: Question about the annoyingly short screen time-out during a call...
Looking at PhoneApp.java, this seems to be getting closer:
559 /**
560 * Controls how quickly the screen times out.
561 *
562 * The poke lock controls how long it takes before the screen
powers
563 * down, and therefore has no immediate effect when the
current
564 * WakeState (see {...@link PhoneApp#requestWakeState}) is FULL.
565 * If we're in a state where the screen *is* allowed to turn
off,
566 * though, the poke lock will determine the timeout interval
(long or
567 * short).
568 *
569 * @param shortPokeLock tells the device the timeout duration
to use
570 * before going to sleep
571 * {...@link
com.android.server.PowerManagerService#SHORT_KEYLIGHT_DELAY}.
572 */
573 /* package */ void setScreenTimeout(ScreenTimeoutDuration
duration) {
574 if (DBG) Log.d(LOG_TAG, setScreenTimeout( + duration +
)...);
575
576 // make sure we don't set the poke lock repeatedly so
that we
577 // avoid triggering the userActivity calls in
578 // PowerManagerService.setPokeLock().
579 if (duration == mPokeLockSetting) {
580 return;
581 }
582 mPokeLockSetting = duration;
583
584 // This is kind of convoluted, but the basic thing to
remember is
585 // that the poke lock just sends a message to the screen
to tell
586 // it to stay on for a while.
587 // The default is 0, for a long timeout and should be set
that way
588 // when we are heading back into a the keyguard / screen
off
589 // state, and also when we're trying to keep the screen
alive
590 // while ringing. We'll also want to ignore the cheek
events
591 // regardless of the timeout duration.
592 // The short timeout is really used whenever we want to
give up
593 // the screen lock, such as when we're in call.
594 int pokeLockSetting =
LocalPowerManager.POKE_LOCK_IGNORE_CHEEK_EVENTS;
595 switch (duration) {
596 case SHORT:
597 // Set the poke lock to timeout the display after
a short
598 // timeout (5s). This ensures that the screen
goes to sleep
599 // as soon as acceptably possible after we the
wake lock
600 // has been released.
601 if (DBG) Log.d(LOG_TAG, setting short poke
lock);
602 pokeLockSetting |=
LocalPowerManager.POKE_LOCK_SHORT_TIMEOUT;
603 break;
604
605 case MEDIUM:
606 // Set the poke lock to timeout the display after
a medium
607 // timeout (15s). This ensures that the screen
goes to sleep
608 // as soon as acceptably possible after we the
wake lock
609 // has been released.
610 if (DBG) Log.d(LOG_TAG, setting medium poke
lock);
611 pokeLockSetting |=
LocalPowerManager.POKE_LOCK_MEDIUM_TIMEOUT;
612 break;
613
614 case DEFAULT:
615 default:
616 // set the poke lock to timeout the display after
a long
617 // delay by default.
618 // TODO: it may be nice to be able to disable
cheek presses
619 // for long poke locks (emergency dialer, for
instance).
620 if (DBG) Log.d(LOG_TAG, reverting to normal long
poke lock);
621 break;
622 }
623
624 // Send the request
625 try {
626 mPowerManagerService.setPokeLock(pokeLockSetting,
mPokeLockToken, LOG_TAG);
627 } catch (RemoteException e) {
628 }
629 }
On Jul 22, 6:18 pm, Ed edmundcl...@gmail.com wrote:
Hi,
According to my adb logcat, this is what happens when the phone shuts
off the screen during a phone call:
D/PhoneApp( 185): updateWakeState: keepScreenOn = false (isRinging
false, showingDisc false)
D/SurfaceFlinger( 134): About to give-up screen, flinger = 0x17b200
[screen then turns off]
How do I go about changing this setting? (Or settings, as the case may
be.) Do I look through the source, change the variable and resign the
whole package? Or is there a simpler way of going about it?
Thanks for your help. Note: I have seen hundreds of complaints about
this from people other than me, but no solutions.
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[android-beginners]
please tell the difference when we use Intent when we use PendingIntent how pendingintent differ from Intent --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: [android-beginners]
The difference is pending. you use pendingintent when you want 'pending'. - Original Message From: saurabh sinha saurso...@gmail.com To: jack...@t-mobile.com; android-beginners@googlegroups.com Sent: Wednesday, July 22, 2009 7:10:57 PM Subject: [android-beginners] please tell the difference when we use Intent when we use PendingIntent how pendingintent differ from Intent --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] How to run instrumentation?
Hi, In the instrumentation class description it's given When running with instrumentation turned on, this class will be instantiated for you before any of the application code I included an instrumentation component in our application/package code and also added it in the manifest file. But when I run the app, the instrumentation is not launched, how to turn it on? Thanks Yasser --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: Low performance using SurfaceView, touchMode and OptionMenu
Hi guys, well I FOUND the solution to the slow surfaceview issue that almost no one mentions! I know someone will appreciate this though, for me its as simple as this: remove: // int flags = WindowManager.LayoutParams.FLAG_FULLSCREEN; //getWindow().setFlags(flags, flags); Ie dont set fullscreen programatically, and adjust your AndroidManifest.xml to do it for you using: activity android:name=.AndroidGameActivity android:label=@string/app_name android:theme=@android:style/ Theme.NoTitleBar.Fullscreen And this WORKS as a fix for me, thank god for that, took me wekkksss to work that out. Good luck fellow sufferers... Gareth www.garethmurfin.co.uk freelance j2me / android / iphone developer On Jun 25, 1:46 am, Jason Van Anden jason.van.an...@gmail.com wrote: I highly recommend that you watch this: http://www.youtube.com/watch?v=U4Bk5rmIpic Jason Van Andenhttp://www.smileproject.com --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: How to run instrumentation?
I think you will need to launch it with the following command: adb shell am instrument -w app_package_name/instrumentation_class_name On Wed, Jul 22, 2009 at 7:24 PM, Yasseryassersiddi...@gmail.com wrote: Hi, In the instrumentation class description it's given When running with instrumentation turned on, this class will be instantiated for you before any of the application code I included an instrumentation component in our application/package code and also added it in the manifest file. But when I run the app, the instrumentation is not launched, how to turn it on? Thanks Yasser --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Beginners group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~--~~~~--~~--~--~---
[android-beginners] Re: Switching layouts
package com.elegos.test;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class ListViewTest extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TextView myText = (TextView)findViewById(R.id.myTextView);
Button nextButton = (Button)findViewById(R.id.ButtonNext);
nextButton.setOnClickListener(new Button.OnClickListener() {
public void onClick (View v){
Intent nextIntent=new Intent
(ListViewTes.this,ExmpActivity.class);
startActivity(nextIntent);
});
}}
U will create another activity by name ExmpActivity as follows
package com.elegos.test;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class ExmpActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.xyz);
Button backButton = (Button)findViewById(R.id.ButtonBack);
backButton.setOnClickListener(new Button.OnClickListener() {
public void onClick (View v){
Intent backIntent=new Intent
(ExmpActivity.this,ListViewTes.class);
startActivity(backIntent);
});
}
}
On Jul 22, 2:27 pm, elegos furlan.giac...@gmail.com wrote:
Hello there!
I'm a newbie in Android programming, and was exploring the possibility
to switch between more than - one - layouts (i.e. more pages?).
So I've created a new XML layout page (called second.xml) and created
some things in there. At least I've created a button to switch back to
the first layout, but a NullPointerException fires up when the
application starts, and that only for the back button, while the
next button just works great.
Any suggestion?
Thanks :)
package com.elegos.test;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class ListViewTest extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TextView myText = (TextView)findViewById(R.id.myTextView);
Button nextButton = (Button)findViewById(R.id.ButtonNext);
Button backButton = (Button)findViewById(R.id.ButtonBack);
nextButton.setOnClickListener(getCListener(R.layout.second));
try {backButton.setOnClickListener(getCListener
(R.layout.main));} catch(Exception e) {myText.append(\n+e.toString
());}
}
final private OnClickListener getCListener(final int layout) {
return new Button.OnClickListener() {
public void onClick(View v) {
setContentView(layout);
}
};
}
}
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[android-beginners] Attach multiple images
Hi...
I have developed a application which can send an email with one image
attachment.
Now i want to attach the multiple images.when i click a button email
should send to a hard coded email address with multiple image
attachments.
I used intents for my program. To send image i used putExtra
method and send image as a EXTRA_STREAM.
Are their any way to implement this.If any body knows plz help me
my code is
public class emailFun extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.email_main);
Button btnSend = (Button) findViewById(R.id.mbutton);
btnSend.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (v.getId() == R.id.mbutton) {
sendEmail();
}
}
});
}
public void sendEmail() {
String []mailto = {mai...@yahoo.com};
// Create a new Intent to send messages
Intent sendIntent = new Intent(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_EMAIL, mailto);
Uri _uri=MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
android.provider.MediaStore.Images.ImageColumns.DATA },null, null,
null);
Cursor cursor = getContentResolver().query(_uri, new String[]
{ android.provider.MediaStore.Images.ImageColumns.DATA },null, null,
null);
cursor.moveToFirst();
int i=cursor.getCount();
sendIntent.putExtra(Intent.EXTRA_SUBJECT,Accsident pictueres-
count+i);
cursor.moveToFirst();
String imageFilePath1 = cursor.getString(0);
String modPath1=file://+imageFilePath1;
Uri uPath1=Uri.parse(modPath1);
sendIntent.setType(image/jpg);
sendIntent.putExtra(Intent.EXTRA_STREAM,uPath1);
startActivity(Intent.createChooser(sendIntent,send the mail));
cursor.close();
finish();
}
}
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