I have created a radio stream app which now is working really well. The problem is when I am in the radio stream screen when i press the back button the app crashes. Anybody have an idea why? this is what i get in the console 02-28 16:41:44.471 24931-24931/com.radioalmacristiana E/AndroidRuntime﹕ FATAL EXCEPTION: main Process: com.radioalmacristiana, PID: 24931 java.lang.NullPointerException at android.app.Fragment.onDestroy(Fragment.java:1381) at com.radioalmacristiana.BT_fragment.onDestroy(BT_fragment.java:224) at com.radioalmacristiana.Cp_stream.onDestroyOptionsMenu(Cp_stream.java:388) at android.app.FragmentManagerImpl.dispatchCreateOptionsMenu(FragmentManager.java:1948) at android.app.Activity.onCreatePanelMenu(Activity.java:2647) at com.android.internal.policy.impl.PhoneWindow.preparePanel(PhoneWindow.java:512) at com.android.internal.policy.impl.PhoneWindow.doInvalidatePanelMenu(PhoneWindow.java:881) at com.android.internal.policy.impl.PhoneWindow$1.run(PhoneWindow.java:297) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:812) at android.view.Choreographer.doCallbacks(Choreographer.java:612) at android.view.Choreographer.doFrame(Choreographer.java:581) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:798) at android.os.Handler.handleCallback(Handler.java:733) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:146) at android.app.ActivityThread.main(ActivityThread.java:5602) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:515) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099) at dalvik.system.NativeStart.main(Native Method)

What's the code in bt_fragment.java on line 224

What's the code on line 338 in cp_stream.java

BT_fragment.java line 224- super.onDestroy(); Cp_stream.java line 338- super.onDestroy();

Did you add any code? Try Project> clean

The output on the console before the error I typed at the beginning of the post is this 02-28 17:27:36.716 28624-28624/com.radioalmacristiana W/ZZ﹕ BT_activity_host:onBackPressed 02-28 17:27:36.716 28624-28624/com.radioalmacristiana W/ZZ﹕ BT_screen_menuListSimple:onCreateOptionsMenu JSON itemId: "942E1C45BCB7C95B68E7F94" 02-28 17:27:36.716 28624-28624/com.radioalmacristiana W/ZZ﹕ BT_screen_menuListSimple:onCreateOptionsMenu JSON itemId: "942E1C45BCB7C95B68E7F94" itemType: "BT_screen_menuListSimple" itemNickname: "Home Screen Menu" 02-28 17:27:36.716 28624-28624/com.radioalmacristiana W/ZZ﹕ Cp_stream:onPause JSON itemId: "F6068B60A0D1525AE55F5E6" itemType: "Cp_stream" itemNickname: "Radio Stream" 02-28 17:27:36.716 28624-28624/com.radioalmacristiana D/AndroidRuntime﹕ Shutting down VM 02-28 17:27:36.716 28624-28624/com.radioalmacristiana W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x41720c08) cleaning did not work by the way I can press the back button on the nav bar but the physical android back button causes this.

The "back button" on the "nav bar"(action bar) is really a button to go to home screen as it won't go to previous screen.the home screen is probably the screen before the radio screen, which may give it that illusion.it's different from the hardware back button. Are you using a emulator?

No I am using a physical device. I would like it to actually go back instead of crashing and ive tried different things but i end up going back to the way it originally was.

duplicate post

did you add some code? I dont see the onDestroy() method in the cp_stream class. The logcat you posted says the error is on line 388 of CP_Stream.java but there are only 387 lines.Looks like you added a method called onDestroyOptionsMenu()

Well I commented that out and it seems to work. Thank you! I was having some trouble with stopping the stream so I added that. I forgot it didnt come with the plugin/I didnt think that could be the problem.

Nice!yea that method is just for action bar menu items.glad you got it working

I know the problem you are mentioning about it not stopping. It changes back to the play button when you go back to the screen after you have left it.this cold be fixed with shared preferences or sqlite