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POApp crashes when rotating phone due to the Window Manager
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  1. POApp crashes when rotating phone due to the Window Manager
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    copied!<p>My andorid app works fine in most cases but sometimes crashes when the phone rotates, i get the error log below which I don't understand. Can anyone explain why this happens?</p> <p>Here is the error log :</p> <pre><code>02-22 14:44:52.175: D/AndroidRuntime(26784): Shutting down VM 02-22 14:44:52.175: W/dalvikvm(26784): threadid=1: thread exiting with uncaught exception (group=0x40e81300) 02-22 14:44:52.183: E/AndroidRuntime(26784): FATAL EXCEPTION: main 02-22 14:44:52.183: E/AndroidRuntime(26784): java.lang.IllegalArgumentException: View not attached to window manager 02-22 14:44:52.183: E/AndroidRuntime(26784): at android.view.WindowManagerImpl.findViewLocked(WindowManagerImpl.java:653) 02-22 14:44:52.183: E/AndroidRuntime(26784): at android.view.WindowManagerImpl.removeView(WindowManagerImpl.java:349) 02-22 14:44:52.183: E/AndroidRuntime(26784): at android.view.WindowManagerImpl$CompatModeWrapper.removeView(WindowManagerImpl.java:160) 02-22 14:44:52.183: E/AndroidRuntime(26784): at android.app.Dialog.dismissDialog(Dialog.java:319) 02-22 14:44:52.183: E/AndroidRuntime(26784): at android.app.Dialog.dismiss(Dialog.java:302) 02-22 14:44:52.183: E/AndroidRuntime(26784): at com.example.chartviewer.JsonActivity$getChartItems.onPostExecute(JsonActivity.java:267) 02-22 14:44:52.183: E/AndroidRuntime(26784): at com.example.chartviewer.JsonActivity$getChartItems.onPostExecute(JsonActivity.java:1) 02-22 14:44:52.183: E/AndroidRuntime(26784): at android.os.AsyncTask.finish(AsyncTask.java:631) 02-22 14:44:52.183: E/AndroidRuntime(26784): at android.os.AsyncTask.access$600(AsyncTask.java:177) 02-22 14:44:52.183: E/AndroidRuntime(26784): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:644) 02-22 14:44:52.183: E/AndroidRuntime(26784): at android.os.Handler.dispatchMessage(Handler.java:99) 02-22 14:44:52.183: E/AndroidRuntime(26784): at android.os.Looper.loop(Looper.java:137) 02-22 14:44:52.183: E/AndroidRuntime(26784): at android.app.ActivityThread.main(ActivityThread.java:4745) 02-22 14:44:52.183: E/AndroidRuntime(26784): at java.lang.reflect.Method.invokeNative(Native Method) 02-22 14:44:52.183: E/AndroidRuntime(26784): at java.lang.reflect.Method.invoke(Method.java:511) 02-22 14:44:52.183: E/AndroidRuntime(26784): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 02-22 14:44:52.183: E/AndroidRuntime(26784): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 02-22 14:44:52.183: E/AndroidRuntime(26784): at dalvik.system.NativeStart.main(Native Method) </code></pre> <p><em>Update</em></p> <p>Here is the code for the the onPostExecuteMethod:</p> <p>//Removes the progress dialog when the data has been fetched</p> <pre><code> protected void onPostExecute(String args) { progressDialog.dismiss(); //Shows alert dialog if data is unavailable if(args != null &amp;&amp; args.equals(noData)){ AlertDialog.Builder builder = new AlertDialog.Builder(JsonActivity.this); builder.setIcon(R.drawable.artistlogo); builder.setTitle("Musicmetric Charts"); builder.setMessage(noData); builder.setOnCancelListener(new DialogInterface.OnCancelListener() { @Override public void onCancel(DialogInterface dialog) { // finishes the activity and leads back to the list of charts JsonActivity.this.finish(); } }); AlertDialog alert = builder.create(); alert.show(); } } </code></pre>
 

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