设备策略服务 DevicePolicyManager
要配置特殊的广播接受者
<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" >
<Button
android:onClick="openAdmin"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="开启管理员权限" />
<Button
android:onClick="lockscreen"
android:layout_centerInParent="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="一键锁屏" />
<Button
android:onClick="uninstall"
android:layout_alignParentBottom="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="卸载软件" />
</RelativeLayout>
package com.itheima.lockscreen;
import android.app.admin.DeviceAdminReceiver;
/**
* 特殊的广播接收者
* @author Administrator
*
*/
public class MyAdmin extends DeviceAdminReceiver {
}
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.itheima.lockscreen"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="10"
android:targetSdkVersion="16" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.itheima.lockscreen.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver
android:name="com.itheima.lockscreen.MyAdmin"
android:description="@string/sample_device_admin_description"
android:label="@string/sample_device_admin"
android:permission="android.permission.BIND_DEVICE_ADMIN" >
<meta-data
android:name="android.app.device_admin"
android:resource="@xml/device_admin_sample" />
<intent-filter>
<action android:name="android.app.action.DEVICE_ADMIN_ENABLED" />
</intent-filter>
</receiver>
</application>
</manifest>
package com.itheima.lockscreen;
import android.app.Activity;
import android.app.admin.DevicePolicyManager;
import android.content.ComponentName;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;
public class MainActivity extends Activity {
/**
* 设备策略服务
*/
private DevicePolicyManager dpm;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
dpm = (DevicePolicyManager) getSystemService(DEVICE_POLICY_SERVICE);
}
/**
* 要在设备管理器哪里激活一下，可以用代码激活
* 用代码去开启管理员
* @param view
*/
public void openAdmin(View view){
//创建一个Intent
Intent intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN);
//我要激活谁
ComponentName mDeviceAdminSample = new ComponentName(this,MyAdmin.class);
intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, mDeviceAdminSample);
//劝说用户开启管理员权限
intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION,
"哥们开启我可以一键锁屏，你的按钮就不会经常失灵");
startActivity(intent);
}
/**
* 一键锁屏
*/
public void lockscreen(View view){
ComponentName who = new ComponentName(this,MyAdmin.class);
if(dpm.isAdminActive(who)){
dpm.lockNow();//锁屏
dpm.resetPassword("", 0);//设置屏蔽密码 ""就是取消掉密码
//清除Sdcard上的数据
// dpm.wipeData(DevicePolicyManager.WIPE_EXTERNAL_STORAGE);
//恢复出厂设置
// dpm.wipeData(0);
}else{
Toast.makeText(this, "还没有打开管理员权限", 1).show();
return ;
}
}
/**
* 卸载当前软件
*/
public void uninstall(View view ){
//1.先清除管理员权限
ComponentName mDeviceAdminSample = new ComponentName(this,MyAdmin.class);
dpm.removeActiveAdmin(mDeviceAdminSample);
//2.普通应用的卸载
Intent intent = new Intent();
intent.setAction("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.setData(Uri.parse("package:"+getPackageName()));
startActivity(intent);
}
}
