[ 
https://issues.apache.org/jira/browse/CB-6837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14140771#comment-14140771
 ] 

Martin Gonzalez commented on CB-6837:
-------------------------------------

Hi [~iclelland], I've made some changes, removed: removeDialogs method on 
CordovaWebView, and CordovaActivity involvement:
https://github.com/apache/cordova-android/pull/117/files

It is possible to keep the track from the CordovaWebView, using some method at 
the ChromeClient to send the references back onDialogs creation, and handle the 
whole dialogs destruction on the WebView.
Although, I haven't tried to find a way to keep track of all dialogs created, 
without touching the CordovaChromeClient class at all, do you have any insights 
that you want to share?


> 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.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to