Android开关控件ToggleButton

main.xml如下:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" >

    <ToggleButton
        android:id="@+id/toggleButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:textOn="打开开关"
        android:textOff="关闭开关"
        android:background="@drawable/togglebutton_selector"
   />

</RelativeLayout>

togglebutton_selector.xml如下:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
      <item android:drawable="@drawable/a" android:state_checked="true"/>
      <item android:drawable="@drawable/b"/>
</selector>

mainActivity如下:

package c.c;
import android.os.Bundle;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ToggleButton;
import android.app.Activity;
/**
 * Demo描述:
 * 利用ToggleButton表示状态的改变时
 * 并且在状态改变时切换ToggleButton中的文字和图片
 *
 */
public class MainActivity extends Activity {
    private ToggleButton mToggleButton;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		init();
	}
    private void init(){
    	mToggleButton=(ToggleButton) findViewById(R.id.toggleButton);
    	mToggleButton.setOnCheckedChangeListener(new OnCheckedChangeListener() {	
			@Override
			public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if (isChecked) {
					System.out.println("999999999");
				} else {
					System.out.println("8888888888");
				}				
			}
		});
    }

}