android Button事件监听

package lvjian.activity;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class Ex03_07Activity extends Activity {

private TextView mytextview;

private Button mybutton;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        mytextview=(TextView)findViewById(R.id.mytextView);
        mybutton=(Button)findViewById(R.id.button1);
        mytextview.setText("haiyan");
        mybutton.setOnClickListener(new Button.OnClickListener(){

public void onClick(View arg0) {

mytextview.setText("恭喜你  haiyan！");
}
       
        });
    }
}