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POApp crashes after receving phone call
 

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  1. POApp crashes after receving phone call
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    <p>After I either receive a phone call or make one, (and other undocumented interruptions) my application gets a NullPointerException when resuming my activity. Can any explain to me where it is and/or how to fix it? When my activity resumes, it is calling onCreate it seems, and it is trying to execute something that is null after Resuming. How do I prevent onCreate() from being called?</p> <p>My activity seems to terminate when I press the call button, because when I try to debug this error, the debugger disconnects.</p> <p>EDIT:</p> <p>So, how do I handle process is killed -> onCreate() ? I have activities A -> B -> C -> D, and I press back all the way to A, there is no problem. But If I start another program, or another program comes to the foreground, D crashes, then C crashes, then B crashes, then A crashes!</p> <p>EDIT:</p> <p>I solved B,C,D crashing. It was because the class where I stored static variables was destroyed to free up resources, and my activities were getting null variables.</p> <p>But when I get back to A, I get a classCastException:</p> <pre><code>08-13 16:52:10.456: ERROR/AndroidRuntime(6048): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.bookcessed.booksearch/com.bookcessed.booksearch.activities.ChooseProviderActivity}: java.lang.ClassCastException: android.view.AbsSavedState$1 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at android.app.ActivityThread.access$2300(ActivityThread.java:125) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at android.os.Handler.dispatchMessage(Handler.java:99) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at android.os.Looper.loop(Looper.java:123) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at android.app.ActivityThread.main(ActivityThread.java:4627) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at java.lang.reflect.Method.invokeNative(Native Method) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at java.lang.reflect.Method.invoke(Method.java:521) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at dalvik.system.NativeStart.main(Native Method) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): Caused by: java.lang.ClassCastException: android.view.AbsSavedState$1 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at android.widget.ProgressBar.onRestoreInstanceState(ProgressBar.java:944) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at android.view.View.dispatchRestoreInstanceState(View.java:6138) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1209) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1209) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at android.view.View.restoreHierarchyState(View.java:6117) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at com.android.internal.policy.impl.PhoneWindow.restoreHierarchyState(PhoneWindow.java:1466) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at android.app.Activity.onRestoreInstanceState(Activity.java:843) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at android.app.Activity.performRestoreInstanceState(Activity.java:815) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at android.app.Instrumentation.callActivityOnRestoreInstanceState(Instrumentation.java:1096) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2641) 08-13 16:52:10.456: ERROR/AndroidRuntime(6048): ... 11 more </code></pre> <p>Here is my onCreate():</p> <pre><code>super.onCreate(savedInstanceState); tempLayout = new RelativeLayout(ChooseProviderActivity.this); ProgressBar tempProgress = new ProgressBar(ChooseProviderActivity.this); tempProgress.setIndeterminate(true); tempProgress.setId(1); //I suspect this is the problem RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams( RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT); lp.addRule(RelativeLayout.CENTER_IN_PARENT); tempLayout.addView(tempProgress, lp); setContentView(tempLayout); </code></pre> <p>This is where I think the problem lies:</p> <pre><code>tempProgress.setId(1); //I suspect this is the problem </code></pre>
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    1. USAymon Fournier
    1. USAymon Fournier
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    1. COWhat if someone calls your phone, but it's the wrong number?
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    2. COCan you show your code for onCreate, and the exact stacktrace of the null pointer?
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      1. USCheryl Simon
    3. CO@recursive Haha yeah, they're already angry enough as it is.
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      1. USAymon Fournier
 

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