- package a.a;
- import android.app.Activity;
- import android.os.Bundle;
- import android.view.View;
- import android.widget.Button;
- import android.widget.EditText;
- public class AActivity extends Activity {
- /** Called when the activity is first created. */
- EditText Ev1;
- @Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.main);
- Ev1 = (EditText)findViewById(R.id.editText1);
- //第一种方式
- Button Btn1 = (Button)findViewById(R.id.button1);//获取按钮资源
- Btn1.setOnClickListener(new Button.OnClickListener(){//创建监听
- public void onClick(View v) {
- String strTmp = "点击Button01";
- Ev1.setText(strTmp);
- }
- });
- //第二种方式
- Button Btn2 = (Button) findViewById(R.id.button2);//获取按钮资源
- Btn2.setOnClickListener(listener);//设置监听
- }
- Button.OnClickListener listener = new Button.OnClickListener(){//创建监听对象
- public void onClick(View v){
- String strTmp="点击Button02";
- Ev1.setText(strTmp);
- }
- };
- //第三种方式(Android1.6版本及以后的版本中提供了)
- public void Btn3OnClick(View view){
- String strTmp="点击Button03";
- Ev1.setText(strTmp);
- }
- }
package a.a; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; public class AActivity extends Activity { /** Called when the activity is first created. */ EditText Ev1; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Ev1 = (EditText)findViewById(R.id.editText1); //第一种方式 Button Btn1 = (Button)findViewById(R.id.button1);//获取按钮资源 Btn1.setOnClickListener(new Button.OnClickListener(){//创建监听 public void onClick(View v) { String strTmp = "点击Button01"; Ev1.setText(strTmp); } }); //第二种方式 Button Btn2 = (Button) findViewById(R.id.button2);//获取按钮资源 Btn2.setOnClickListener(listener);//设置监听 } Button.OnClickListener listener = new Button.OnClickListener(){//创建监听对象 public void onClick(View v){ String strTmp="点击Button02"; Ev1.setText(strTmp); } }; //第三种方式(Android1.6版本及以后的版本中提供了) public void Btn3OnClick(View view){ String strTmp="点击Button03"; Ev1.setText(strTmp); } }
- <?xml version="1.0" encoding="utf-8"?>
- <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
- android:layout_width="fill_parent"
- android:layout_height="fill_parent"
- android:orientation="vertical" >
- <TextView
- android:layout_width="fill_parent"
- android:layout_height="wrap_content"
- android:text="@string/hello" />
- <Button
- android:id="@+id/button1"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:text="Button1" />
- <Button
- android:id="@+id/button2"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:text="Button2" />
- <Button
- android:id="@+id/button3"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:text="Button3"
- android:onClick="Btn3OnClick"/>
- <EditText
- android:id="@+id/editText1"
- android:layout_width="match_parent"
- android:layout_height="wrap_content" >
- <requestFocus />
- </EditText>
- </LinearLayout>