1 import android.app.Activity;
2 import android.os.Bundle;
3 import android.view.View;
4 import android.widget.Button;
5 import android.widget.EditText;
6
7
8 public class activity extends Activity {
9 /** Called when the activity is first created. */
10 EditText Ev1;
11
12 @Override
13 public void onCreate(Bundle savedInstanceState) {
14 super.onCreate(savedInstanceState);
15 setContentView(R.layout.main);
16
17 Ev1 = (EditText)findViewById(R.id.EditText01);
18 //第一种方式
19 Button Btn1 = (Button)findViewById(R.id.Button01);//获取按钮资源
20 Btn1.setOnClickListener(new Button.OnClickListener(){//创建监听
21 @Override
22 public void onClick(View v) {
23 String strTmp = "点击Button01";
24 Ev1.setText(strTmp);
25 }
26 });
27
28 //第二种方式
29 Button Btn2 = (Button) findViewById(R.id.Button02);//获取按钮资源
30 Btn2.setOnClickListener(listener);//设置监听
31 }
32
33 Button.OnClickListener listener = new Button.OnClickListener(){//创建监听对象
34 @Override
35 public void onClick(View v){
36 String strTmp="点击Button02";
37 Ev1.setText(strTmp);
38 }
39 };
40
41 //第三种方式(Android1.6版本及以后的版本中提供了)
42 public void Btn3OnClick(View view){
43 String strTmp="点击Button03";
44 Ev1.setText(strTmp);
45 }
46 }
