我在AlertDialog上错误地调用hide()而不是dismiss()触发了这个错误。

如果你在doInBackground()函数中有一个错误，并且有这样的代码，就会出现这种情况。

最后尝试添加对话。首先检查并修复doInBackground()函数

protected void onPreExecute() {
     super.onPreExecute();
     pDialog = new ProgressDialog(CreateAccount.this);
     pDialog.setMessage("Creating Product..");
     pDialog.setIndeterminate(false);
     pDialog.setCancelable(true);
     pDialog.show();

 }

 protected String doInBackground(String...args) {
     ERROR CAN BE IS HERE
 }

 protected void onPostExecute(String file_url) {
     // dismiss the dialog once done
     pDialog.dismiss();

你必须在AsyncTask的onPreExecute方法中创建Progressdialog对象，你应该在onPostExecute方法中解散它。

我也有同样的问题。错误不在对话框中，而是在编辑文本中。我试图改变一个异步任务内的编辑文本的值。我唯一能解决的问题就是创造一个新的可运行对象。

runOnUiThread(new Runnable(){
      @Override
      public void run() {
       ...        
      }
    });  

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);
}

不仅尝试显示警报，而且当您完成一个特定的活动实例并尝试启动新的活动/服务或尝试停止它时，还可以调用它。

例子:

OldActivity instance;

    oncreate() {
       instance=this;
    }
    instance.finish();
    instance.startActivity(new Intent(ACTION_MAIN).setClass(instance, NewActivity.class));