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Can anyone explain to me why this error occures, or even better how do I handle it? I can not reproduce it. It is one of those errors that happends once out of a 1000.
Background: The user is trying to log in, a progress dialog is showing, a http request is sent in async task, the progress dialog is dissmissed. Error occures, app FC.
LoginActivity.java
255: private void dismissProgress() {
256: if (mProgress != null) {
257: mProgress.dismiss();
258: mProgress = null;
259: }
260: }
java.lang.IllegalArgumentException: View not attached to window manager
at android.view.WindowManagerImpl.findViewLocked(WindowManagerImpl.java:391)
at android.view.WindowManagerImpl.removeView(WindowManagerImpl.java:236)
at android.view.Window$LocalWindowManager.removeView(Window.java:432)
at android.app.Dialog.dismissDialog(Dialog.java:278)
at android.app.Dialog.access$000(Dialog.java:71)
at android.app.Dialog$1.run(Dialog.java:111)
at android.app.Dialog.dismiss(Dialog.java:268)
at se.magpern.LoginActivity.dismissProgress(LoginActivity.java:257)
at se.magpern.LoginActivity.access$5(LoginActivity.java:255)
at se.magpern.LoginActivity$DoTheLogin.onPostExecute(LoginActivity.java:293)
at se.magpern.LoginActivity$DoTheLogin.onPostExecute(LoginActivity.java:1)
at android.os.AsyncTask.finish(AsyncTask.java:417)
at android.os.AsyncTask.access$300(AsyncTask.java:127)
at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:429)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:144)
at android.app.ActivityThread.main(ActivityThread.java:4937)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
at dalvik.system.NativeStart.main(Native Method)
680
What Causes IllegalArgumentException. An IllegalArgumentException code> occurs when an argument passed to a method doesn't fit within the logic of the usage of the argument. Some of the most common scenarios for this are: When the arguments passed to a method are out of range.
An IllegalArgumentException is thrown in order to indicate that a method has been passed an illegal argument. This exception extends the RuntimeException class and thus, belongs to those exceptions that can be thrown during the operation of the Java Virtual Machine (JVM).
Some common unchecked exceptions in Java are NullPointerException, ArrayIndexOutOfBoundsException and IllegalArgumentException.
The IllegalStateException is thrown when the Java environment or application is not in an appropriate state for the requested operation. This can occur when dealing with threads or the Collections framework of the java. util package under specific conditions.
This can happen if the user either dismisses the view (e.g. a dialog that can be backed out of) or if the user switches to a different activity while your task is running. You should seriously think about using Android's activity-native dialog showing/dismissing instead of trying to keep a reference to the views yourself. But if you are handling it yourself, you may want to check if the dialog is actually showing using the dialog's isShowing() method before trying to dismiss it.
177
I've seen this happen when a latent update comes in for a progress dialog that has already been fully or partially dismissed. Either the user is requesting a dismissal at the same time the os is trying to dismiss the view and its already been disconnected from the window or vice versa.
There is a race condition between the code that dismisses the progress window when a button is clicked and the code that dismisses the progress window in another fashion. The mostly likely place to look for this race condition is where your requests for dismissing the windows are put onto the view thread (button handler or a code callback).
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