Android开关控件Switch的使用案例

<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"
  android:paddingbottom="@dimen/activity_vertical_margin"
  android:paddingleft="@dimen/activity_horizontal_margin"
  android:paddingright="@dimen/activity_horizontal_margin"
  android:paddingtop="@dimen/activity_vertical_margin"
  tools:context=".mainactivity" >
  <switch
    android:id="@+id/switch1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignparentleft="true"
    android:layout_alignparenttop="true"
    android:layout_marginleft="32dp"
    android:layout_margintop="94dp"
    android:text="开启震动"
    android:textoff="关闭"
    android:onclick="ontoggleclicked"
    android:texton="打开" />
  <textview
    android:id="@+id/textview1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignleft="@+id/switch1"
    android:layout_alignparenttop="true"
    android:layout_margintop="26dp"
    android:text="switch的使用"
    android:textsize="30dp" />
</relativelayout>

package com.example.android_switch;
import android.os.bundle;
import android.app.activity;
import android.view.menu;
import android.view.view;
import android.widget.switch;
import android.widget.toast;
import android.widget.togglebutton;
public class mainactivity extends activity {
 @override
 protected void oncreate(bundle savedinstancestate) {
 super.oncreate(savedinstancestate);
 setcontentview(r.layout.activity_main);
 }
 public void ontoggleclicked(view view) {
 /*
  * 强转为switch类型的
  */
 boolean ischecked = ((switch) view).ischecked();
 if (ischecked == true) {
  toast.maketext(mainactivity.this, "打开", 1).show();
 } else {
  toast.maketext(mainactivity.this, "关闭", 1).show();
 }
 }
 @override
 public boolean oncreateoptionsmenu(menu menu) {
 // inflate the menu; this adds items to the action bar if it is present.
 getmenuinflater().inflate(r.menu.main, menu);
 return true;
 }
}