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https://issues.apache.org/jira/browse/CB-6837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14159261#comment-14159261
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ASF subversion and git services commented on CB-6837:
-----------------------------------------------------

Commit 890e12c30674d7b4dff54082e9ee879505475e19 in cordova-android's branch 
refs/heads/4.0.x from [~martin.c.glez.glez]
[ https://git-wip-us.apache.org/repos/asf?p=cordova-android.git;h=890e12c ]

CB-6837 Fix leaked window when hitting back button while alert being rendered

Keep track of the last AlertDialog showed.
The last dialog showed that is rendered while hitting back button it
causes a leaked window.
Instead of perform a full track of all dialogs created, only destroy the
last one showed, this fixes the problem.

close #122


> Hitting Back button while alert being rendered causes leaked window
> -------------------------------------------------------------------
>
>                 Key: CB-6837
>                 URL: https://issues.apache.org/jira/browse/CB-6837
>             Project: Apache Cordova
>          Issue Type: Bug
>          Components: Android
>    Affects Versions: 3.5.0
>            Reporter: Marcel Kinard
>            Assignee: Martin Gonzalez
>         Attachments: index.html
>
>
> On master and using dialogs plugin. Using a trivial app that has a button to 
> create an alert dialog after 500ms timeout. If the Back button is hit at 
> approximately the same time as the timer expires and the alert is to be 
> shown, the following exception appears in logcat:
> D/CordovaWebView( 8178): The current URL is: 
> file:///android_asset/www/index.html
> D/CordovaWebView( 8178): The URL at item 0 is: 
> file:///android_asset/www/index.html
> D/dalvikvm(  513): GC_FOR_ALLOC freed 306K, 13% free 14164K/16240K, paused 
> 54ms, total 55ms
> D/CordovaActivity( 8178): Paused the application!
> D/CordovaWebView( 8178): Handle the pause
> W/IInputConnectionWrapper( 8178): showStatusIcon on inactive InputConnection
> W/InputMethodManagerService(  513): Starting input on non-focused client 
> com.android.internal.view.IInputMethodClient$Stub$Proxy@42396598 (uid=10050 
> pid=8178)
> D/CordovaActivity( 8178): CordovaActivity.onDestroy()
> D/CordovaWebView( 8178): >>> loadUrlNow()
> E/WindowManager( 8178): 
> E/WindowManager( 8178): android.view.WindowLeaked: Activity 
> com.example.Example has leaked window 
> com.android.internal.policy.impl.PhoneWindow$DecorView{41f0d8b8 V.E..... 
> R.....I. 0,0-465,256} that was originally added here
> E/WindowManager( 8178):       at 
> android.view.ViewRootImpl.<init>(ViewRootImpl.java:348)
> E/WindowManager( 8178):       at 
> android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:248)
> E/WindowManager( 8178):       at 
> android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
> E/WindowManager( 8178):       at android.app.Dialog.show(Dialog.java:286)
> E/WindowManager( 8178):       at 
> android.app.AlertDialog$Builder.show(AlertDialog.java:951)
> E/WindowManager( 8178):       at 
> org.apache.cordova.CordovaChromeClient.onJsAlert(CordovaChromeClient.java:143)
> E/WindowManager( 8178):       at 
> com.android.webview.chromium.WebViewContentsClientAdapter.handleJsAlert(WebViewContentsClientAdapter.java:606)
> E/WindowManager( 8178):       at 
> com.android.org.chromium.android_webview.AwContentsClientBridge.handleJsAlert(AwContentsClientBridge.java:73)
> E/WindowManager( 8178):       at 
> com.android.org.chromium.base.SystemMessageHandler.nativeDoRunLoopOnce(Native 
> Method)
> E/WindowManager( 8178):       at 
> com.android.org.chromium.base.SystemMessageHandler.handleMessage(SystemMessageHandler.java:27)
> E/WindowManager( 8178):       at 
> android.os.Handler.dispatchMessage(Handler.java:102)
> E/WindowManager( 8178):       at android.os.Looper.loop(Looper.java:136)
> E/WindowManager( 8178):       at 
> android.app.ActivityThread.main(ActivityThread.java:5017)
> E/WindowManager( 8178):       at java.lang.reflect.Method.invokeNative(Native 
> Method)
> E/WindowManager( 8178):       at 
> java.lang.reflect.Method.invoke(Method.java:515)
> E/WindowManager( 8178):       at 
> com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
> E/WindowManager( 8178):       at 
> com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
> E/WindowManager( 8178):       at dalvik.system.NativeStart.main(Native Method)
> D/CordovaWebViewClient( 8178): onPageFinished(about:blank)
> D/CordovaActivity( 8178): onMessage(onPageFinished,about:blank)
> D/CordovaActivity( 8178): onMessage(exit,null)
> It looks like there is an attempt to show the alert dialog after the 
> activity's onDestroy() method has been called.
> When resuming the app by clicking on it's icon in the home screen or using 
> the Multitask button, the webview doesn't render completely, I see only a 
> black screen with the usual status bar. The app must be killed, and then it 
> works fine after a restart. It appears that there is a pretty small time 
> window during the timeout in which this can be reproduced, something on the 
> order of 200ms.



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