Solutions for android.view.WindowLeaked (form disclosure)

Although it is a small problem, but also troubled me for a while, now write down, give yourself a memo, also can give other people a reference

Java code

2. View Plaincopy to Clipboardprint?
4. 01-: 27.874:error/windowmanager (473): Activity com.photos.MainActivity has leaked window Android.widget.ImageButton@43e40d10 that is originally added here
6. 01-: 27.874:error/windowmanager (473): android.view.WindowLeaked:Activity Com.photos.MainActivity have leaked window Android.widget.ImageButton@43e40d10 that is originally added here /c5>
8. 01-: 27.874:error/windowmanager (473): At Android.view.viewroot.<init> ( Viewroot.java:247)
10. 01-: 27.874:error/windowmanager (473): At Android.view.WindowManagerImpl.addView ( Windowmanagerimpl.java:148)
12. 01-: 27.874:error/windowmanager (473): At Android.view.WindowManagerImpl.addView ( Windowmanagerimpl.java: ()
14. 01-: 27.874:error/windowmanager (473): at android.view.window$ Localwindowmanager.addview (Window.java:424)
16. 01-: 27.874:error/windowmanager (473): At Android.widget.PopupWindow.invokePopup ( Popupwindow.java:828)
18. 01-: 27.874:error/windowmanager (473): At Android.widget.PopupWindow.showAtLocation ( Popupwindow.java:688)
20. 01-: 27.874:error/windowmanager (473): At Com.photos.MainActivity.showCommonPopup ( Mainactivity.java:)
22. 01-: 27.874:error/windowmanager (473): At com.photos.mainactivity.access$3 ( Mainactivity.java:255)
24. 01-: 27.874:error/windowmanager (473): at com.photos.mainactivity$2. Handlemessage (Mainactivity.java:)
26. 01-: 27.874:error/windowmanager (473): At Android.os.Handler.dispatchMessage ( Handler.java:)
28. 01-: 27.874:error/windowmanager (473): At Android.os.Looper.loop (Looper.java: 123)
30. 01-: 27.874:error/windowmanager (473): At Android.app.ActivityThread.main ( Activitythread.java:4627)
32. 01-: 27.874:error/windowmanager (473): At Java.lang.reflect.Method.invokeNative ( Native Method)
34. 01-: 27.874:error/windowmanager (473): At Java.lang.reflect.Method.invoke (Method.java: 521)
36. 01-: 27.874:error/windowmanager (473): at com.android.internal.os.zygoteinit$ Methodandargscaller.run (Zygoteinit.java:868)
38. 01-: 27.874:error/windowmanager (473): At Com.android.internal.os.ZygoteInit.main ( Zygoteinit.java:626)
40. 01-: 27.874:error/windowmanager (473): At Dalvik.system.NativeStart.main (Native Method)

Literally, window leaked is about a form leak, which is what we often say about memory leaks, why Windows leak?

Cause:
We know that every activity in Android has a WindowManager form manager, and similarly, a dialog box built on top of an activity, Popupwindow also has a corresponding WindowManager form manager. Because dialogs and Popupwindown cannot be separated from activity, we go to finish () to carry the dialog (or Popupwindow) when a dialog or a Popupwindow is being displayed. Activity, it will throw window leaked exception, because this dialog (or Popupwindow) WindowManager No one can be attached, so its form manager has been leaked.

Android.view.WindowLeaked typically occur in activity and dialog displays.

Activity in Create a dialog, if you first close dialog and then close activity is normal, if you first close activity and then close dialog will error this android.view.WindowLeaked errors.
The reason for this analysis is that dialog is created based on activity: New ProgressDialog, this is activity. Activtity first finish, that dialog will not have dependency, so will be reported android.view.WindowLeaked.




Workaround:
Before closing (finish) an activity, make sure that the dialog or popupwindow attached to it is closed (dismiss).
You can also create dialog in Oncreatedialog () to allow the system to manage dialog boxes

Solutions for android.view.WindowLeaked (form disclosure)