Android 当弹出菜单可见时检测按键

我希望能够使用键（即数字1-4）从弹出菜单中选择一个选项。我正在为其编写应用程序的设备有一个内置数字键盘，使其始终可以访问（不使用软键盘）

其目的是让用户能够按一个数字/按钮，并在此处显示正在工作的菜单（这在我的活动中）：

我希望能够使用键盘从菜单中选择一个选项，但是当菜单可见时，只要按下一个键，onKeyUp事件就不会触发

以下是菜单代码：

public void showPopupMenu(View v){
    PopupMenu popupMenu = new PopupMenu(this, v);
    final MenuInflater menuInflator = popupMenu.getMenuInflater();

    popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
        @Override
        public boolean onMenuItemClick(MenuItem menuItem) {
            //Do something
            return true;
        }
    });

    menuInflator.inflate(R.menu.current_screen_menu, popupMenu.getMenu());
    popupMenu.show();
}

---

这是使用安卓4.1（API 16）。谢谢你的帮助！乐意提供更多需要的代码。

您需要在popupwindow对象中设置keyevent listener，如下所示

public void showPopupMenu(View v){
    PopupMenu popupMenu = new PopupMenu(this, v);
    final MenuInflater menuInflator = popupMenu.getMenuInflater();

    popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
        @Override
        public boolean onMenuItemClick(MenuItem menuItem) {
            //Do something
            return true;
        }
    });

    menuInflator.inflate(R.menu.current_screen_menu, popupMenu.getMenu());
    popupMenu.show();

    // You have to implement following listner
    popupMenu.getContentView().setOnKeyListener(new View.OnKeyListener() {        
        @Override
        public boolean onKey(View v, int keyCode, KeyEvent event) {
            if (keyCode ==  KeyEvent.KEYCODE_MENU && 
                    event.getRepeatCount() == 0 && 
                    event.getAction() == KeyEvent.ACTION_DOWN) {
                // ... payload action here. e.g. popupMenu.dismiss();
                return true;
            }                
            return false;
        }
    });
}

---

你能想个办法吗？我也面临着类似的问题！嘿，对不起，我不能说我能让它工作。最后，我使用了一个简单明了的“对话”，你可以找到它

public void showPopupMenu(View v){
    PopupMenu popupMenu = new PopupMenu(this, v);
    final MenuInflater menuInflator = popupMenu.getMenuInflater();

    popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
        @Override
        public boolean onMenuItemClick(MenuItem menuItem) {
            //Do something
            return true;
        }
    });

    menuInflator.inflate(R.menu.current_screen_menu, popupMenu.getMenu());
    popupMenu.show();

    // You have to implement following listner
    popupMenu.getContentView().setOnKeyListener(new View.OnKeyListener() {        
        @Override
        public boolean onKey(View v, int keyCode, KeyEvent event) {
            if (keyCode ==  KeyEvent.KEYCODE_MENU && 
                    event.getRepeatCount() == 0 && 
                    event.getAction() == KeyEvent.ACTION_DOWN) {
                // ... payload action here. e.g. popupMenu.dismiss();
                return true;
            }                
            return false;
        }
    });
}