android Button 监听的几种方式

原文地址为： 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:
   

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

2. 多个button对应一个监听1:

   start = (Button) findViewById(R.id.button1);
   stop = (Button) findViewById(R.id.button2);
   start.setOnClickListener(mylistener );
   stop.setOnClickListener(mylistener );
   View.OnClickListener mylistener = new View.OnClickListener() {
   		
   		@Override
   		public 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:

   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;
       }
   
   	@Override
   	public 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:

   <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:

   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。
   
   

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