Victoria,
Has the ViewStub already been inflated by any chance? That is, maybe
this is the second time through you're clicking the button?
If so, you should know that inflating a ViewStub removes it from the
hierarchy and replaces it with the layout you provide with
android:layout, giving it the id set by android:inflatedId.
Also, your try/catch block is wrong, it should be inside the onClick
listener - think about it, the exception happens when you click the
button, not when you set the onClick handler.
btnExposure.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v) {
*try {*
ViewStub stub = (ViewStub) findViewById(R.id.stub_exposure);
importStub = stub.inflate();
*}catch (Exception e){
// pass "e" to Log.e to see full stack trace in logcat
*
* Log.e("ERROR", "Error in Code:" +e.toString(), e);*
*} *
}
});
You also need to modify the layout to be inflated -the way it is now,
both views are on top of one another. This is the fix:
<TextView
android:id="@+id/text_view"
<SeekBar
android:layout_below="@id/text_view
And last but not least, I think this is the actual error:
android:text="@+String/hello"
There is no "+" notation for strings, and it's "string" not "String"
anyway. You can do either
android:text="@string/hello"
or
android:text="Hello"
-- Kostya
01.08.2010 16:27, Victoria Busse пишет:
Okay I got the "Source" of the error: the try and catch returned that
the Null Pointer Exception derives from this part as you already
suspected:
ViewStub stub = (ViewStub) findViewById(R.id.stub_exposure);
importStub = stub.inflate();
But I don't understand why it should be null as I followed the
examples I found on the web... e.g. this here:
http://developer.android.com/reference/android/view/ViewStub.html
And this is the code in the xml, in which I call the ViewStub:
<ViewStub
android:id="@+id/stub_exposure"
android:inflatedId="@+id/stub_exposure_view"
android:layout="@layout/exposureview"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#77000000">
</ViewStub>
And here is the according layout xml for the inflated View, the
exposureview.xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android";
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@+String/hello"
></TextView>
<SeekBar
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:thumb="@drawable/seek_thumb"
android:progress="50"
android:max="100">
</SeekBar>
</RelativeLayout>
2010/8/1 Victoria Busse <[email protected]
<mailto:[email protected]>>
mhmmm, I tried
try{
btnExposure.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v) {
ViewStub stub = (ViewStub) findViewById(R.id.stub_exposure);
importStub = stub.inflate();
}
});}catch (Exception e){
Log.e("ERROR", "Error in Code:" +e.toString());
}
but I don't get any output at all...
2010/8/1 Kostya Vasilyev <[email protected]
<mailto:[email protected]>>
Victoria,
Judging by logcat, it looks like "stub" variable, the result
of calling findViewById(R.id.stub_exposure) is null. You
should check this in the debugger.
-- Kostya
01.08.2010 13:46, Victoria Busse пишет:
Okay found the problem, I simply forgot to define the
button's View btnExposure = (ImageButton)
findViewById(R.id.button_exposure);
So this - quite simple - problem's solved, but now I got at
new NullPointerException at
com.mobilevideoeditor.moved.EditorView$1.onClick(EditorView.java:54),
which is importStub = ((ViewStub)
findViewById(R.id.stub_exposure)).inflate();
And this is what I don't really understand because I am not
familiar with ViewStubs yet...
I also tried ViewStub stub = (ViewStub)
findViewById(R.id.stub_exposure);
importStub = stub.inflate();
but again I get the Null Pointer Exception at importStub =
stub.inflate();
Could there be s.th <http://s.th> wrong with the
exposureview.xml that I use to inflate the stub??
2010/8/1 Victoria Busse <[email protected]
<mailto:[email protected]>>
Here is the Logcat:
08-01 08:17:11.984: ERROR/AndroidRuntime(223): Uncaught
handler: thread main exiting due to uncaught exception
08-01 08:17:11.994: ERROR/AndroidRuntime(223):
java.lang.RuntimeException: Unable to start activity
ComponentInfo{com.mobilevideoeditor.moved/com.mobilevideoeditor.moved.EditorView}:
java.lang.NullPointerException
08-01 08:17:11.994: ERROR/AndroidRuntime(223): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2496)
08-01 08:17:11.994: ERROR/AndroidRuntime(223): at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512)
08-01 08:17:11.994: ERROR/AndroidRuntime(223): at
android.app.ActivityThread.access$2200(ActivityThread.java:119)
08-01 08:17:11.994: ERROR/AndroidRuntime(223): at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)
08-01 08:17:11.994: ERROR/AndroidRuntime(223): at
android.os.Handler.dispatchMessage(Handler.java:99)
08-01 08:17:11.994: ERROR/AndroidRuntime(223): at
android.os.Looper.loop(Looper.java:123)
08-01 08:17:11.994: ERROR/AndroidRuntime(223): at
android.app.ActivityThread.main(ActivityThread.java:4363)
08-01 08:17:11.994: ERROR/AndroidRuntime(223): at
java.lang.reflect.Method.invokeNative(Native Method)
08-01 08:17:11.994: ERROR/AndroidRuntime(223): at
java.lang.reflect.Method.invoke(Method.java:521)
08-01 08:17:11.994: ERROR/AndroidRuntime(223): at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
08-01 08:17:11.994: ERROR/AndroidRuntime(223): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
08-01 08:17:11.994: ERROR/AndroidRuntime(223): at
dalvik.system.NativeStart.main(Native Method)
08-01 08:17:11.994: ERROR/AndroidRuntime(223): Caused by:
java.lang.NullPointerException
08-01 08:17:11.994: ERROR/AndroidRuntime(223): at
com.mobilevideoeditor.moved.EditorView.onCreate(EditorView.java:49)
08-01 08:17:11.994: ERROR/AndroidRuntime(223): at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
08-01 08:17:11.994: ERROR/AndroidRuntime(223): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459)
08-01 08:17:11.994: ERROR/AndroidRuntime(223): ... 11
more
The Null pointer exception apparently is at
com.mobilevideoeditor.moved.EditorView.onCreate(EditorView.java:49),
which is the Image Button onClickListener
2010/8/1 Kostya Vasilyev <[email protected]
<mailto:[email protected]>>
Logcat?
--
Kostya Vasilyev -- http://kmansoft.wordpress.com
01.08.2010 12:32 пользователь "Victoria Busse"
<[email protected]
<mailto:[email protected]>> написал:
Update, just found a mistake within the ViewStub
declaration as I forgot to specify a layout, here is
the updated code because the error is still there
:(( If someone knows what I am doing wrong please
help me because after finding out that I forgot the
layout /I thought it would work /but apparently it
still doesn't
<ViewStub
android:id="@+id/stub_exposure"
android:inflatedId="@+id/stub_exposure_view"
android:layout="@layout/exposureview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
androi...
On Sun, Aug 1, 2010 at 1:11 AM, kivy
<[email protected]
<mailto:[email protected]>> wrote:
>
> Hi there,
>
> I just ...
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