I'm developing a media file app that is meant to play sounds stored in
my raw folder. There are about 32 sounds in all. And this is what i'm
doing on the click of each button:
Button btnGrowUp = (Button) this.findViewById(R.id.GrowUp);
btnGrowUp.setOnClickListener(btnGrowUpListener);
private OnClickListener btnGrowUpListener = new OnClickListener()
{
public void onClick(View v)
{
//Toast.makeText(getBaseContext(), "Grow Up audio file is being
played", Toast.LENGTH_SHORT).show();
MediaPlayer mp = MediaPlayer.create(MainScreen.this,
R.raw.growup);
mp.start();
}
};
I get a runtime exception saying "app stops unexpectedly" with the
follow messages in my logcat window:
12-19 12:33:05.420: WARN/dalvikvm(699): threadid=3: thread exiting
with uncaught exception (group=0x4000fe70)
12-19 12:33:05.441: ERROR/AndroidRuntime(699): Uncaught handler:
thread main exiting due to uncaught exception
12-19 12:33:05.460: ERROR/AndroidRuntime(699):
java.lang.NullPointerException
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
com.myapps.media.MainScreen$8.onClick(MainScreen.java:244)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
android.view.View.performClick(View.java:2179)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
android.view.View.onTouchEvent(View.java:3828)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
android.widget.TextView.onTouchEvent(TextView.java:6291)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
android.view.View.dispatchTouchEvent(View.java:3368)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:863)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:863)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:863)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:863)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:863)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
com.android.internal.policy.impl.PhoneWindow
$DecorView.superDispatchTouchEvent(PhoneWindow.java:1707)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent
(PhoneWindow.java:1197)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
android.app.Activity.dispatchTouchEvent(Activity.java:1993)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
com.android.internal.policy.impl.PhoneWindow
$DecorView.dispatchTouchEvent(PhoneWindow.java:1691)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
android.view.ViewRoot.handleMessage(ViewRoot.java:1525)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
android.os.Handler.dispatchMessage(Handler.java:99)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
android.os.Looper.loop(Looper.java:123)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
android.app.ActivityThread.main(ActivityThread.java:3948)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
java.lang.reflect.Method.invokeNative(Native Method)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
java.lang.reflect.Method.invoke(Method.java:521)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run
(ZygoteInit.java:782)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540)
12-19 12:33:05.460: ERROR/AndroidRuntime(699): at
dalvik.system.NativeStart.main(Native Method)
12-19 12:33:05.520: INFO/Process(563): Sending signal. PID: 699 SIG: 3
12-19 12:33:05.520: INFO/dalvikvm(699): threadid=7: reacting to signal
3
12-19 12:33:05.601: INFO/dalvikvm(699): Wrote stack trace to '/data/
anr/traces.txt'
12-19 12:33:05.982: INFO/ARMAssembler(563): generated
scanline__00000077:03515104_00000000_00000000 [ 27 ipp] (41 ins) at
[0x27c718:0x27c7bc] in 982527 ns
12-19 12:33:06.011: INFO/ARMAssembler(563): generated
scanline__00000077:03515104_00001001_00000000 [ 64 ipp] (84 ins) at
[0x27c7c0:0x27c910] in 1804978 ns
How to resolve this issue? Thank you
Maqsood
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