这个错误是什么,为什么会发生?

05-17 18:24:57.069: ERROR/WindowManager(18850): Activity com.mypkg.myP has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@44c46ff0 that was originally added here
05-17 18:24:57.069: ERROR/WindowManager(18850): android.view.WindowLeaked: Activity ccom.mypkg.myP has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@44c46ff0 that was originally added here
05-17 18:24:57.069: ERROR/WindowManager(18850):     at android.view.ViewRoot.<init>(ViewRoot.java:231)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:148)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at android.view.Window$LocalWindowManager.addView(Window.java:424)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at android.app.Dialog.show(Dialog.java:239)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at com.mypkg.myP$PreparePairingLinkageData.onPreExecute(viewP.java:183)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at android.os.AsyncTask.execute(AsyncTask.java:391)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at com.mypkg.myP.onCreate(viewP.java:94)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2544)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2621)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at android.app.ActivityThread.access$2200(ActivityThread.java:126)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1932)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at android.os.Handler.dispatchMessage(Handler.java:99)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at android.os.Looper.loop(Looper.java:123)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at android.app.ActivityThread.main(ActivityThread.java:4595)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at java.lang.reflect.Method.invokeNative(Native Method)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at java.lang.reflect.Method.invoke(Method.java:521)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
05-17 18:24:57.069: ERROR/WindowManager(18850):     at dalvik.system.NativeStart.main(Native Method)

当前回答

尝试下面的代码,它将在任何时候工作,你将解散进度对话框,它将看到它的实例是否可用。

try {
        if (null != progressDialog && progressDialog.isShowing()) {
            progressDialog.dismiss();
            progressDialog = null;
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

其他回答

当试图从后台线程显示吐司时得到此错误。 这是通过在UI线程上运行UI相关代码来解决的

您试图在退出活动后显示一个对话框。

(编辑)

这个问题是谷歌上android开发者搜索最多的问题之一, 因此,从评论中添加一些重要的观点,这可能对未来的调查人员更有帮助,而不需要深入评论对话。

答案1:

您试图在退出活动后显示一个对话框。

回答2

在某些情况下,这个错误可能会有点误导(尽管 答案仍然是完全准确的)-即在我的情况下,一个 在AsyncTask中抛出了unhandled异常,这导致 活动关闭,然后一个打开的progressdialog导致了这一点 异常. .所以'real'异常在日志中稍早一些

回答3

在退出前创建的Dialog实例上调用dismiss() 活动,例如在onPause()或onDestroy()中

在运行猴子测试时,我也遇到了windowleaks的问题。logcat在下面。

android.support.v7.app.AppCompatDelegateImplV7$ListMenuDecorView@4334fd40 that was originally added here
android.view.WindowLeaked: Activity com.myapp.MyActivity has leaked window android.support.v7.app.AppCompatDelegateImplV7$ListMenuDecorView@4334fd40 that was originally added here
            at android.view.ViewRootImpl.<init>(ViewRootImpl.java:409)
            at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:312)
            at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:224)
            at android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:149)
            at android.view.Window$LocalWindowManager.addView(Window.java:554)
            at android.support.v7.app.AppCompatDelegateImplV7.openPanel(AppCompatDelegateImplV7.java:1150)
            at android.support.v7.app.AppCompatDelegateImplV7.onKeyUpPanel(AppCompatDelegateImplV7.java:1469)
            at android.support.v7.app.AppCompatDelegateImplV7.onKeyUp(AppCompatDelegateImplV7.java:919)
            at android.support.v7.app.AppCompatDelegateImplV7.dispatchKeyEvent(AppCompatDelegateImplV7.java:913)
            at android.support.v7.app.AppCompatDelegateImplBase$AppCompatWindowCallbackBase.dispatchKeyEvent(AppCompatDelegateImplBase.java:241)
            at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:2009)
            at android.view.ViewRootImpl.deliverKeyEventPostIme(ViewRootImpl.java:3929)
            at android.view.ViewRootImpl.deliverKeyEvent(ViewRootImpl.java:3863)
            at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3420)
            at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:4528)
            at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:4506)
            at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:4610)
            at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:171)
            at android.os.MessageQueue.nativePollOnce(Native Method)
            at android.os.MessageQueue.next(MessageQueue.java:125)
            at android.os.Looper.loop(Looper.java:124)
            at android.app.ActivityThread.main(ActivityThread.java:4898)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1008)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:775)
            at dalvik.system.NativeStart.main(Native Method)

我的活动是AppCompatActivity。我用下面的代码在活动中解决了它。

@Override
public boolean dispatchKeyEvent(KeyEvent event) {
    // added by sunhang : intercept menu key to resove a WindowLeaked error in monkey-test.
    if (event.getKeyCode() == KeyEvent.KEYCODE_MENU) {
        return true;
    }
    return super.dispatchKeyEvent(event);
}

我正在使用一个视频播放器的对话框错误,而不是发疯(我已经测试了所有这些解决方案)

我选择了DialogFragment http://developer.android.com/reference/android/app/DialogFragment.html。

你可以在内部的DialogFragment类中返回构建器创建,只需要重写onCreateDialog

这可能会有所帮助。

if (! isFinishing()) {

    dialog.show();

    }