取消在Android 4.1.x的动作条上溢菜单时警告 [英] Warning when canceling ActionBar Overflow menu on Android 4.1.x

问题描述

这是在警告我得到：

03-02 14：38：43.980：W / InputEventReceiver（3961）：试图完成一个输入事件，但输入的事件接收器已经被释放

我已经从一个普通的 RES /菜单/ activity_menu.xml 文件生成的菜单。 我在处理这些事件正是在<一个详细的href="http://developer.android.com/guide/topics/ui/menus.html#options-menu">http://developer.android.com/guide/topics/ui/menus.html#options-menu

The menu I have was generated from a regular res/menu/activity_menu.xml file. I'm handling the events exactly as detailed on http://developer.android.com/guide/topics/ui/menus.html#options-menu

当我点击垂直三个点打开溢出菜单并取消了它，我得到的警告。似乎是如何捕捉到它的触发知之甚少。任何想法？

When I click the vertical three dots to open the overflow menu and cancel out of it, I get that warning. There seems to be little knowledge of how to catch its trigger. Any ideas?

推荐答案

这是不是对你的工作有关。

This is not related with your work.

溢出菜单由PopupWindow实现。当用户触摸关闭PopupWindow，ACTION_DOWN事件排队应用程序的消息队列。然后，它被传递到查看通过ViewPostImeInputStage类，并最终ViewPostImeInputStage发送此输入事件PopupWindow的的onTouchEvent监听器。

Overflow menu is implemented by PopupWindow. When user touch to close PopupWindow, ACTION_DOWN event queued to app's Message queue. Then it is delivered to View through ViewPostImeInputStage class and finally ViewPostImeInputStage send this input event to PopupWindow's onTouchEvent listener.

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        final int x = (int) event.getX();
        final int y = (int) event.getY();

        if ((event.getAction() == MotionEvent.ACTION_DOWN)
                && ((x < 0) || (x >= getWidth()) || (y < 0) || (y >= getHeight()))) {
            dismiss();
            return true;
        } else if (event.getAction() == MotionEvent.ACTION_OUTSIDE) {
            dismiss();
            return true;
        } else {
            return super.onTouchEvent(event);
        }
    }

dissmiss（）尝试关闭PopupWindow和PopupWindow :: onDetachedWindow调用WindowInputEventReceiver ::处理（）第一。

dissmiss() try to close PopupWindow and PopupWindow::onDetachedWindow call WindowInputEventReceiver::dispose() first.

然后ViewPostImeInputStage调用WindowInputEventReceiver :: finishInputEvent完成该ACTION_DOWN事件。然而WindowInputEventReceiver实例已经设置成它抛出警告信息。

And then ViewPostImeInputStage call WindowInputEventReceiver::finishInputEvent to finish that ACTION_DOWN event. However WindowInputEventReceiver instance is already disposed so it throw warning messages.

您可以将它通过断点调试。开放InputEventReceiver.java（需要框架/基/ Android源$ C ​​$ C）和Dispose方法设置断点。

You can debug it by breakpoint. open InputEventReceiver.java(need android source code at framework/base/) and set breakpoint at dispose method.

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