Question

android studio中的Tabbed Activity主框架中增加按钮切换的问题

public Fragment getItem(int position) {
// getItem is called to instantiate the fragment for the given page.
// Return a PlaceholderFragment (defined as a static inner class below).
//原来的调用模式
//return PlaceholderFragment.newInstance(position + 1);
switch (position) {
case 0:
return new frame1();
case 1:
return new frame3();
case 2:
return new frame2();
default:
//return null;
return new frame1();
}
}
已经修改 自动生成的代码，想增加3个图片按钮来切换相关Fragment，请问图片按钮代码如何调用。谢谢。。。

Answer 1

安卓中实现Button监听有以下几种方式：
public class HelloActivity extends Activity {

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button btnMethod01;
Button btnMethod02;
Button btnMethod03;

btnMethod01 = (Button)findViewById(R.id.button1);
btnMethod02 = (Button)findViewById(R.id.button2);
btnMethod03 = (Button)findViewById(R.id.button3);

//第一种方法：匿名类
btnMethod01.setOnClickListener(new Button.OnClickListener(){

public void onClick(View v){
Toast.makeText(HelloActivity.this,R.string.method01
,Toast.LENGTH_SHORT).show();
}

});

//添加监听事件
btnMethod02.setOnClickListener(new button1OnClickListener());
}
//第二种方法：内部类实现 有两部 1.写内部类 2.添加监听事件
private class button1OnClickListener implements OnClickListener{
public void onClick(View v){
Toast.makeText(HelloActivity.this,R.string.method02,
Toast.LENGTH_SHORT).show();
}

}
//第三种方法：用xml方法配置，该名称要与 main.xml 中button03的
//android:onClick="OnClickButton03"的名字一样
public void OnClickButton03(View v){
Toast.makeText(HelloActivity.this,R.string.method03
,Toast.LENGTH_SHORT).show();
}

}

//其中Button3的xml应该这样写

<Button
android:onClick="OnClickButton03"
android:id="@+id/button3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/method03"/>