Android按钮绑定四种方式

代码中有四种方式绑定按钮

public class MainActivity extends Activity implements OnClickListener{



  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    //点击方式1
    Button but=(Button)findViewById(R.id.button1);
    but.setOnClickListener(new OnClickListener() {
      
      @Override
      public void onClick(View arg0) {
        Toast.makeText(MainActivity.this, "点击1事件", 800).show();
      }
    });
    //点击方式2
    Button but1=(Button)findViewById(R.id.button2);
    but1.setOnClickListener(new MyOnClickListener());
    
    //点击方式3   类上面实现OnClickListener
    Button but2=(Button)findViewById(R.id.button3);
    but2.setOnClickListener(this);
  }
    //点击方式4  
  public void onClickMethod(View v){
    Toast.makeText(this, "显示4", 800).show();
  }


  class MyOnClickListener implements OnClickListener{


    @Override
    public void onClick(View arg0) {
      Toast.makeText(MainActivity.this,"点击2事件", 800).show();
    }
    
  }
  //重写onClick
  @Override
  public void onClick(View arg0) {
    Toast.makeText(this, "点击3事件", 800).show();
  }
  
  
  
}