that is an extract of my LogCat,
Peace,
Gaara
06-28 14:30:18.682: WARN/dalvikvm(479): threadid=1: thread exiting
with uncaught exception (group=0x40015560)
06-28 14:30:18.732: ERROR/AndroidRuntime(479): FATAL EXCEPTION: main
06-28 14:30:18.732: ERROR/AndroidRuntime(479):
java.lang.RuntimeException: Unable to start activity
ComponentInfo{com.example.android/com.example.android.AnotherOne}:
java.lang.NullPointerException
06-28 14:30:18.732: ERROR/AndroidRuntime(479): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
1647)
06-28 14:30:18.732: ERROR/AndroidRuntime(479): at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:
1663)
06-28 14:30:18.732: ERROR/AndroidRuntime(479): at
android.app.ActivityThread.access$1500(ActivityThread.java:117)
06-28 14:30:18.732: ERROR/AndroidRuntime(479): at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
06-28 14:30:18.732: ERROR/AndroidRuntime(479): at
android.os.Handler.dispatchMessage(Handler.java:99)
06-28 14:30:18.732: ERROR/AndroidRuntime(479): at
android.os.Looper.loop(Looper.java:123)
06-28 14:30:18.732: ERROR/AndroidRuntime(479): at
android.app.ActivityThread.main(ActivityThread.java:3683)
06-28 14:30:18.732: ERROR/AndroidRuntime(479): at
java.lang.reflect.Method.invokeNative(Native Method)
06-28 14:30:18.732: ERROR/AndroidRuntime(479): at
java.lang.reflect.Method.invoke(Method.java:507)
06-28 14:30:18.732: ERROR/AndroidRuntime(479): at
com.android.internal.os.ZygoteInit
$MethodAndArgsCaller.run(ZygoteInit.java:839)
06-28 14:30:18.732: ERROR/AndroidRuntime(479): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
06-28 14:30:18.732: ERROR/AndroidRuntime(479): at
dalvik.system.NativeStart.main(Native Method)
06-28 14:30:18.732: ERROR/AndroidRuntime(479): Caused by:
java.lang.NullPointerException
06-28 14:30:18.732: ERROR/AndroidRuntime(479): at
com.example.android.AnotherOne.onCreate(AnotherOne.java:43)
06-28 14:30:18.732: ERROR/AndroidRuntime(479): at
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:
1047)
06-28 14:30:18.732: ERROR/AndroidRuntime(479): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
1611)
06-28 14:30:18.732: ERROR/AndroidRuntime(479): ... 11 more
06-28 14:30:18.772: WARN/ActivityManager(59): Force finishing
activity com.example.android/.AnotherOne
06-28 14:30:19.312: WARN/ActivityManager(59): Activity pause timeout
for HistoryRecord{4055a9c0 com.example.android/.AnotherOne}
06-28 14:30:30.929: WARN/ActivityManager(59): Activity destroy timeout
for HistoryRecord{4055a9c0 com.example.android/.AnotherOne}
06-28 14:31:01.101: INFO/Process(479): Sending signal. PID: 479 SIG: 9
06-28 14:31:01.163: INFO/ActivityManager(59): Process
com.example.android (pid 479) has died.
06-28 14:31:01.282: WARN/InputManagerService(59): Window already
focused, ignoring focus gain of:
com.android.internal.view.IInputMethodClient$Stub$Proxy@40716e88
On Jun 28, 2:18 pm, Mark Murphy <mmur...@commonsware.com> wrote:
> Use adb logcat, DDMS, or the DDMS perspective in Eclipse to examine
> LogCat and view the stack trace associated with your "force close".
>
>
>
>
>
>
>
>
>
> On Tue, Jun 28, 2011 at 9:51 AM, gaara <amellal.kamili...@gmail.com> wrote:
> > Hi group,
> > why when i use my_button.setOnClickListener(this) ; with this refers
> > to my current Activity ,i got an error of Force close, what's the
> > difference on having the listener directly on the button and the
> > listener on the activity then override the onClick method;
> > Peace,
> > Gaara
>
> > --
> > You received this message because you are subscribed to the Google
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>
> --
> Mark Murphy (a Commons
> Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy
>
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