Android View添加 Listener 小技巧示例

android:layout_height="wrap_content"

android:text="@string/hello"

/>

< /LinearLayout>

其中以下这两行就是新增的特性：

android:

android:

2.在活动里面定义public的方法myClickHandler01、和myClickHandler02(注意这两个方法必须有一个View的形参)。

Java代码

package com.ray.test;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

public class TestOnClickListener extends Activity {

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

}

public void myClickHandler01(View target){

setTitle("myClickHandler01");

}

public void myClickHandler02(View target){

setTitle("myClickHandler02");

}

}

package com.ray.test;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

public class TestOnClickListener extends Activity {

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

}

public void myClickHandler01(View target){

setTitle("myClickHandler01");

}

public void myClickHandler02(View target){

setTitle("myClickHandler02");

}

}

当然，你也可以采用这种写法：

将两个按钮设置到同一个Listener

android:

android:

Java代码

package com.ray.test;

import android.app.Activity;

import android.os.Bundle;