开关控件Switch和ToggleButton

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <Switch
        android:id="@+id/wlan"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textOn="开"
        android:textOff="关" />

    <ToggleButton
        android:id="@+id/gps"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="ToggleButton" />

</LinearLayout>

import android.app.Activity;
import android.os.Bundle;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.Switch;
import android.widget.Toast;
import android.widget.ToggleButton;

public class MainActivity extends Activity {
	//声明Switch
	private Switch wlan = null;
	private ToggleButton gps = null;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		//获取Switch对象、ToggleButton对象
		wlan = (Switch) super.findViewById(R.id.wlan);
		gps = (ToggleButton) super.findViewById(R.id.gps);
		/*
		 * 因为Switch组件继承自CompoundButton,在代码中可以
		 * 通过实现CompoundButton.OnCheckedChangeListener接口
		 * 并实现其内部类的onCheckedChanged来监听状态变化
		 * 
		 */
		wlan.setOnCheckedChangeListener(new OnCheckedChangeListener() {
			
			@Override
			public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
				if(isChecked)
					Toast.makeText(getApplicationContext(), "Switch状态为开", Toast.LENGTH_LONG).show();
				else
					Toast.makeText(getApplicationContext(), "Switch状态为关", Toast.LENGTH_LONG).show();
			}
		});
		/*
		 * 因为ToggleButton组件继承自CompoundButton,在代码中可以通过实现
		 * CompoundButton.OnCheckedChangeListener接口，并实现
		 * 其内部类的onCheckedChanged来监听状态变化
		 */
		gps.setOnCheckedChangeListener(new OnCheckedChangeListener() {
			
			@Override
			public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
				if(isChecked)
					Toast.makeText(getApplicationContext(), "ToggleButton状态为开", Toast.LENGTH_LONG).show();
				else
					Toast.makeText(getApplicationContext(), "ToggleButton状态为关", Toast.LENGTH_LONG).show();
			}
		});
	}

}