android - 令牌 android.os.BinderProxy@be12cf1 的应用程序有太多的 windows 20

Question

致命异常：android.view.WindowManager$BadTokenException 无法添加窗口——令牌 android.os.BinderProxy@be12cf1 的应用程序有太多窗口 20

我在我的 crashlytics 中经常遇到这种崩溃。我无法共享代码，但任何人都可以帮助提供导致此崩溃的代码片段吗？

ps：在android源代码中找不到这个错误。

Fatal Exception: android.view.WindowManager$BadTokenException: Unable to add window -- app for token android.os.BinderProxy@7fd051f has too many windows 20
   at android.view.ViewRootImpl.setView(ViewRootImpl.java:993)
   at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:408)
   at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:95)
   at android.app.Dialog.show(Dialog.java:372)
   at androidx.fragment.app.DialogFragment.onStart(DialogFragment.java:529)
   at androidx.fragment.app.Fragment.performStart(Fragment.java:2731)
   at androidx.fragment.app.FragmentStateManager.start(FragmentStateManager.java:365)
   at androidx.fragment.app.FragmentManager.moveToState(FragmentManager.java:1206)
   at androidx.fragment.app.FragmentManager.moveToState(FragmentManager.java:1368)
   at androidx.fragment.app.FragmentManager.moveFragmentToExpectedState(FragmentManager.java:1446)
   at androidx.fragment.app.FragmentManager.moveToState(FragmentManager.java:1509)
   at androidx.fragment.app.FragmentManager.dispatchStateChange(FragmentManager.java:2637)
   at androidx.fragment.app.FragmentManager.dispatchStart(FragmentManager.java:2595)
   at androidx.fragment.app.FragmentController.dispatchStart(FragmentController.java:258)
   at androidx.fragment.app.FragmentActivity.onStart(FragmentActivity.java:550)
   at androidx.appcompat.app.AppCompatActivity.onStart(AppCompatActivity.java:210)
   at com.carthero.driver.views.activities.BaseActivity.onStart(BaseActivity.java:101)
   at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1479)
   at android.app.Activity.performStart(Activity.java:7891)
   at android.app.ActivityThread.handleStartActivity(ActivityThread.java:3545)
   at android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:221)
   at android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:201)
   at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:173)
   at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2242)
   at android.os.Handler.dispatchMessage(Handler.java:107)
   at android.os.Looper.loop(Looper.java:230)
   at android.app.ActivityThread.main(ActivityThread.java:7789)
   at java.lang.reflect.Method.invoke(Method.java)
   at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:526)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1034)

标签： android

Answer 1

此异常是从您的应用程序进程内的 Android 框架代码中引发的。堆栈跟踪指向 ViewRootImpl.setView，在该文件中，我们可以找到几个 WindowManager$BadTokenException 被抛出的消息有些相似，但并不完全相同。

switch (res) {
    case WindowManagerGlobal.ADD_BAD_APP_TOKEN:
    case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN:
        throw new WindowManager.BadTokenException(
                "Unable to add window -- token " + attrs.token
                + " is not valid; is your activity running?");
    case WindowManagerGlobal.ADD_NOT_APP_TOKEN:
        throw new WindowManager.BadTokenException(
                "Unable to add window -- token " + attrs.token
                + " is not for an application");
    case WindowManagerGlobal.ADD_APP_EXITING:
        throw new WindowManager.BadTokenException(
                "Unable to add window -- app for token " + attrs.token
                + " is exiting");
    case WindowManagerGlobal.ADD_DUPLICATE_ADD:
        throw new WindowManager.BadTokenException(
                "Unable to add window -- window " + mWindow
                + " has already been added");
    case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED:
        // Silently ignore -- we would have just removed it
        // right away, anyway.
        return;
    case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON:
        throw new WindowManager.BadTokenException("Unable to add window "
                + mWindow + " -- another window of type "
                + mWindowAttributes.type + " already exists");
    case WindowManagerGlobal.ADD_PERMISSION_DENIED:
        throw new WindowManager.BadTokenException("Unable to add window "
                + mWindow + " -- permission denied for window type "
                + mWindowAttributes.type);
    case WindowManagerGlobal.ADD_INVALID_DISPLAY:
        throw new WindowManager.InvalidDisplayException("Unable to add window "
                + mWindow + " -- the specified display can not be found");
    case WindowManagerGlobal.ADD_INVALID_TYPE:
        throw new WindowManager.InvalidDisplayException("Unable to add window "
                + mWindow + " -- the specified window type "
                + mWindowAttributes.type + " is not valid");
    case WindowManagerGlobal.ADD_INVALID_USER:
        throw new WindowManager.BadTokenException("Unable to add Window "
                + mWindow + " -- requested userId is not valid");
}

因此，您可能正面临特定制造商所做的源更改，因为他们的设备无法从单个应用程序处理那么多窗口。

错误消息表明您的应用程序已经添加了 20 个窗口，这看起来很多，但对于深度活动堆栈可能有意义（因为每个活动 = 1 个窗口）。

您可以尝试使用方形/窗帘来跟踪正在添加的窗口并找出高数字的来源。