NativeActivity的覆盖的onkeydown（） [英] NativeActivity override onKeyDown()

问题描述

我具有我工作的一个 NativeActivity的子类的问题，我的目标是捕获并处理来自Java code，而不是关键事件
 本土code（这主要是由于因为这个），可惜我看不到日志（） present在的onkeydown 方法虽然
的onCreate（）日志正在打印，我已经放在本地code日志版画为好。看来，的onkeydown 我的 NativeActivity的的子类是永远不会被调用。

任何想法？

 公共类CNativeActivity扩展NativeActivity的{
        私人最终静态字符串变量=CNativeActivity;        保护无效的onCreate（捆绑savedInstanceState）{
            Log.v（TAG的onCreate）;
            super.onCreate（savedInstanceState）;
        }        @覆盖
        公共布尔的onkeydown（INT键code，KeyEvent的事件）{
            Log.v（TAG的onkeydown）;
            返回true;
        }
}
 

解决方案

补充工具KeyEvent.Callback

 公共类@ @活动扩展NativeActivity的实现KeyEvent.Callback {
   公共布尔onKeyMultiple（INT键code，诠释计数，KeyEvent的事件）
}
 

KeyEvent.Callback覆盖本地AInputEvent调度后虽然发生;所以基本上你必须忽略所有旧dipatching并实施一些新的东西，如果你想获得扩展键，如昆明，√，€，£...

I having problem with a NativeActivity subclass I am working on, my goal would be to catch and handle key events from the Java code instead of native code (this is mainly due because this), unfortunately I can not see the Log() present in the onKeyDown method though the onCreate() log is being printed and the log prints I have placed in the native code are as well. It seems that the onKeyDown of my NativeActivity subclass is never called.

Any idea?

public class CNativeActivity extends NativeActivity{                                                                                                                                                                                                                                                                                                                                
        private final static String TAG = "CNativeActivity";                                                                                                                            

        protected void onCreate(Bundle savedInstanceState) {                                                                                                                                  
            Log.v(TAG, "onCreate");                                                                                                                                                          
            super.onCreate(savedInstanceState);                                                                                                                                              
        }                                                                                                                                                                                    

        @Override                                                                                                                                                                            
        public boolean onKeyDown(int keyCode, KeyEvent event) {                                                                                                                              
            Log.v(TAG, "onKeyDown");                                                                                                                                                          
            return true;                                                                                                                                                                      
        }
}   

解决方案

add implements KeyEvent.Callback

public class @activity@ extends NativeActivity implements KeyEvent.Callback  {
   public boolean onKeyMultiple (int keyCode, int count, KeyEvent event)
}

KeyEvent.Callback overrides happen after the native AInputEvent dispatching though; so basically you'll have to ignore all old dipatching and implement something new if you want to get the extended keys like ÷,√,€,£, …

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