onKeyDown方法在OPPO手机上无反应，是怎么回事

Question

新创建的工程，布局里只有一个EditText,出现虚拟键盘，点击任何按键，OnKeyDown都没反应。手机型号是：OPPO F1w

    @Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
}

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    Log.e("mazhuang", TAG + event.getAction());
    return super.onKeyDown(keyCode, event);
}

Answer 1

http://jingyan.baidu.com/album/454316ab6d8804f7a7c03ac7.html?stepindex=2&st=5&os=1&bd_page_type=1&net_type=2