android Button 监听的几种方式

android button控件目前主要有如下几种监听方式:

1. 一个button控件对应一个监听:
   
   [java] view plaincopyprint?

   1.       Button buttontest; 
   2.       buttontest = (Button) findViewById(R.id.button1); 
   3.       buttontest.setOnClickListener(new View.OnClickListener() { 
   4.      
   5.     @Override 
   6.     public void onClick(View v) { 
   7.         // TODO Auto-generated method stub 
   8.         Log.i("TEST", "button onClick"); 
   9.     } 
   10. }); 

           Button buttontest;        buttontest = (Button) findViewById(R.id.button1);        buttontest.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubLog.i("TEST", "button onClick");}});

2. 多个button对应一个监听1:
   [java] view plaincopyprint?

   1. start = (Button) findViewById(R.id.button1); 
   2. stop = (Button) findViewById(R.id.button2); 
   3. start.setOnClickListener(mylistener ); 
   4. stop.setOnClickListener(mylistener ); 
   5. View.OnClickListener mylistener = new View.OnClickListener() { 
   6.          
   7.         @Override 
   8.         public void onClick(View v) { 
   9.             switch (v.getId()) { 
   10.             case R.id.button1: 
   11.                 Log.d(TAG, "Start to recorder video\n"); 
   12.                 start_recorde(); 
   13.                 break; 
   14.             case R.id.button2: 
   15.                 Log.d(TAG, "Stop to recorder video\n"); 
   16.                 stop_recorde(); 
   17.                 break; 
   18.             default: 
   19.                 break; 
   20.             }    
   21.         } 
   22.     }; 

   start = (Button) findViewById(R.id.button1);stop = (Button) findViewById(R.id.button2);start.setOnClickListener(mylistener );stop.setOnClickListener(mylistener );View.OnClickListener mylistener = new View.OnClickListener() {@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.button1:Log.d(TAG, "Start to recorder video\n");start_recorde();break;case R.id.button2:Log.d(TAG, "Stop to recorder video\n");stop_recorde();break;default:break;}}};

3. 多个button对应一个监听2:
   [java] view plaincopyprint?

   1. public class MainActivityextends Activity implements View.OnClickListener{ 
   2.     //界面元素  
   3.     private Button start; 
   4.     private Button stop; 
   5.      
   6.     @Override 
   7.     public void onCreate(Bundle savedInstanceState) { 
   8.         super.onCreate(savedInstanceState); 
   9.         setContentView(R.layout.activity_main); 
   10.          
   11.         start = (Button) findViewById(R.id.button1); 
   12.         stop = (Button) findViewById(R.id.button2); 
   13.         start.setOnClickListener(this); 
   14.         stop.setOnClickListener(this); 
   15.     } 
   16.  
   17.     @Override 
   18.     public boolean onCreateOptionsMenu(Menu menu) { 
   19.         getMenuInflater().inflate(R.menu.activity_main, menu); 
   20.         return true; 
   21.     } 
   22.  
   23.     @Override 
   24.     public void onClick(View v) { 
   25.         switch (v.getId()) { 
   26.         case R.id.button1: 
   27.             Log.d(TAG, "Start to recorder video\n"); 
   28.             break; 
   29.         case R.id.button2: 
   30.             Log.d(TAG, "Stop to recorder video\n"); 
   31.             break; 
   32.         default: 
   33.             break; 
   34.         } 
   35.     } 
   36.          
   37. } 

   public class MainActivity extends Activity implements View.OnClickListener{//界面元素private Button start;private Button stop;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);                start = (Button) findViewById(R.id.button1);        stop = (Button) findViewById(R.id.button2);        start.setOnClickListener(this);        stop.setOnClickListener(this);    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        getMenuInflater().inflate(R.menu.activity_main, menu);        return true;    }@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.button1:Log.d(TAG, "Start to recorder video\n");break;case R.id.button2:Log.d(TAG, "Stop to recorder video\n");break;default:break;}}}

4. xml中绑定监听:
   [html] view plaincopyprint?

   1. <Button  
   2. android:id="@+id/button1"  
   3. android:layout_height="wrap_content"           
   4. android:layout_width="wrap_content"  
   5. android:onClick="mybuttonlistener"> 
   6. </Button> 

   <Button android:id="@+id/button1" android:layout_height="wrap_content"          android:layout_width="wrap_content" android:onClick="mybuttonlistener"></Button>

   对应java代码如下:
   [java] view plaincopyprint?

   1. Button btn = (Button) findViewById(R.id.button1); 
   2. public void mybuttonlistener(View target){ 
   3.     //do something5       
   4. } 

   Button btn = (Button) findViewById(R.id.button1);public void mybuttonlistener(View target){    //do something5     }

   
   从个人角度来讲，不推荐使用第四种实现方式。