android设备管理器（只有提示用户激活后，才可以使用）--DevicePolicyManager：
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1.android设备管理器（只有提示用户激活后，才可以使用）--
DevicePolicyManager：-
使用到三个类：
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DevicePolicyManager
密码定义的长度，密码是否要含大写字母，小写字母等设置密码需要满足的规范，锁定设备或是清除所有用户数据，要配合DeviceAdminReceiver来使用
方法：-
1.进行锁屏操作
mDevicePolicyManager.lockNow() -
2.设置屏幕灯光变暗时间相关long timeout = 1000L * Long.parseLong(et.getText().toString()); mDevicePolicyManager.setMaximumTimeToLock(mDeviceComponentName, timeout); mDevicePolicyManager.wipeData(0); 3.恢复出厂设置mDevicePolicyManager.wipeData(0);
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- DeviceAdminReceiver
该类继承自 BroadcastReceiver 。 从源码可以看到，其实就是实现了一个OnReceive方法，该方法中根据不同的Action，执行相应的操作。 比如，如果激活成功，那么Action就是ACTION_DEVICE_ADMIN_ENABLED， 据此调用 onEnabled 方法。 - DeviceAdminInfo
包括设备信息，Info,就是Information嘛，呵，，乱猜也可以猜到，至于里面什么属性，到时候朋友们可以直接"."下就知道啦
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实现步骤：
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1.在androidmanifest.xml中注册一个广播类，用于监听权限的变化
<receiver android:name=".AdminReceiver" android:description="@string/description" android:label="@string/labelValue" android:permission="android.permission.BIND_DEVICE_ADMIN" > <meta-data android:name="android.app.device_admin" android:resource="@xml/lockourscreen"/> <intent-filter> <action android:name="android.app.action.DEVICE_ADMIN_ENABLED" /> intent-filter> receiver> -
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创建管理权限的清单：--》早
res的文件夹下创建一个xml文件夹，再创建lockourscreen.xml<device-admin xmlns:android="http://schemas.android.com/apk/res/android"> <uses-policies> <force-lock /> <wipe-data /> <reset-password /> <limit-password /> <watch-login /> uses-policies> device-admin>
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- 3.创建广播类deviceAdminReceiver 继承DeviceAdminReceiver并且实现相应的方法
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package com.xiaoma.www;
import android.app.admin.DeviceAdminReceiver;
import android.app.admin.DevicePolicyManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;
public class AdminReceiver extends DeviceAdminReceiver {
@Override
public DevicePolicyManager getManager(Context context) {
Log.i("XiaoMaGuo", "调用了getManager()方法");
return super.getManager(context);
}
@Override
public ComponentName getWho(Context context) {
Log.i("XiaoMaGuo", "调用了getWho()方法");
return super.getWho(context);
}
/**
* 禁用
*/
@Override
public void onDisabled(Context context, Intent intent) {
Log.i("XiaoMaGuo", "调用了onDisabled()方法");
Toast.makeText(context, "禁用设备管理", Toast.LENGTH_SHORT).show();
super.onDisabled(context, intent);
}
@Override
public CharSequence onDisableRequested(Context context, Intent intent) {
Log.i("XiaoMaGuo", "调用了onDisableRequested()方法--这是一个可选的消息，警告有关禁止用户的请求");
return super.onDisableRequested(context, intent);
}
/**
* 激活
*/
@Override
public void onEnabled(Context context, Intent intent) {
Log.i("XiaoMaGuo", "调用了onEnabled()方法");
Toast.makeText(context, "启动设备管理", Toast.LENGTH_SHORT).show();
super.onEnabled(context, intent);
}
@Override
public void onPasswordChanged(Context context, Intent intent) {
Log.i("XiaoMaGuo", "调用了onPasswordChanged()方法--设备管理：密码己经改变");
super.onPasswordChanged(context, intent);
}
@Override
public void onPasswordFailed(Context context, Intent intent) {
Log.i("XiaoMaGuo", "调用了onPasswordFailed()方法");
super.onPasswordFailed(context, intent);
}
@Override
public void onPasswordSucceeded(Context context, Intent intent) {
Log.i("XiaoMaGuo", "调用了onPasswordSucceeded()方法");
super.onPasswordSucceeded(context, intent);
}
@Override
public void onReceive(Context context, Intent intent) {
Log.i("XiaoMaGuo", "调用了onReceive()方法");
super.onReceive(context, intent);
}
@Override
public IBinder peekService(Context myContext, Intent service) {
Log.i("XiaoMaGuo", "调用了peekService()方法");
return super.peekService(myContext, service);
}
}
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4.激活相关管理权限的操作的操作
Intent intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN); //权限列表 //EXTRA_DEVICE_ADMIN参数中说明了用到哪些权限， intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, componentName); //描述(additional explanation) //EXTRA_ADD_EXPLANATION参数为附加的说明 intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION, "--小马坏，小马爱，小马瓜瓜怪--"); startActivityForResult(intent, 0);
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package com.xiaoma.www;
import com.xiaoma.www.R;
import android.app.Activity;
import android.app.admin.DevicePolicyManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
/**
* @Title: DevicePolicyManagerDemoActivity.java
* @Package com.xiaoma.www
* @Description: 屏幕锁测试
* @author MZH
* @version V2.2
*/
public class DevicePolicyManagerDemoActivity extends Activity {
private Button startPermissionBtn;
private Button stopPermissionBtn;
private Button sysLockBtn;
private DevicePolicyManager dpm;
private ComponentName componentName ;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//初始化
init();
}
/**
* 初始化实现
*/
private void init(){
//资源声明定位
startPermissionBtn = (Button)findViewById(R.id.button1);
stopPermissionBtn = (Button)findViewById(R.id.button2);
sysLockBtn = (Button)findViewById(R.id.button3);
startPermissionBtn.setOnClickListener(listener);
stopPermissionBtn.setOnClickListener(listener);
sysLockBtn.setOnClickListener(listener);
//取得系统服务
dpm = (DevicePolicyManager)getSystemService(Context.DEVICE_POLICY_SERVICE);
componentName = new ComponentName(this, AdminReceiver.class);
}
/**
* 按钮监听器的实现,此处小马讲下，在实现监听的时候不要在一个分支里面写太多逻辑处理
* 分支只负责分支，不负责处理，要处理的话可以模块化，处理函数抽出去就可以了
* 小马希望大家从一开始就养成个好习惯，吼吼。。
*/
private OnClickListener listener = new OnClickListener() {
@Override
public void onClick(View v) {
//以下是三个按钮分别处理的事件实现
switch (v.getId()) {
case R.id.button1:
//开启设备权限
startDeviceManager();
break;
case R.id.button2:
//停止设备权限
stopDeviceManager();
break;
case R.id.button3:
//调用系统锁
sysLock();
break;
default:
break;
}
}
};
/**
* 启动设备管理权限
*/
private void startDeviceManager(){
//添加一个隐式意图，完成设备权限的添加
//这个Intent (DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN)跳转到 权限提醒页面
//并传递了两个参数EXTRA_DEVICE_ADMIN 、 EXTRA_ADD_EXPLANATION
Intent intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN);
//权限列表
//EXTRA_DEVICE_ADMIN参数中说明了用到哪些权限，
intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, componentName);
//描述(additional explanation)
//EXTRA_ADD_EXPLANATION参数为附加的说明
intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION, "--小马坏，小马爱，小马瓜瓜怪--");
startActivityForResult(intent, 0);
}
/**
* 禁用设备管理权限方法实现
*/
private void stopDeviceManager(){
Log.i("XiaoMaGuo","------ unActiveManage ------");
boolean active = dpm.isAdminActive(componentName);
if (active) {
dpm.removeActiveAdmin(componentName);
}
}
/**
* 调用系统锁方法实现
*/
private void sysLock(){
boolean active = dpm.isAdminActive(componentName);
if (active) {
dpm.lockNow();
}
}
/**
* manager pwd setting
*/
/*private void updatePolicies() {
SharedPreferences prefs = getSamplePreferences(this);
final int pwQuality = prefs.getInt(PREF_PASSWORD_QUALITY,
DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED);
final int pwLength = prefs.getInt(PREF_PASSWORD_LENGTH, 0);
final int maxFailedPw = prefs.getInt(PREF_MAX_FAILED_PW, 0);
boolean active = dpm.isAdminActive(componentName);
if (active) {
dpm.setPasswordQuality(componentName, pwQuality);
dpm.setPasswordMinimumLength(componentName, pwLength);
dpm.setMaximumFailedPasswordsForWipe(componentName, maxFailedPw);
}
} */
/**
* update pwd
*/
/*private void updatePolicies() {
SharedPreferences prefs = getSamplePreferences(this);
final int pwQuality = prefs.getInt(PREF_PASSWORD_QUALITY,
DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED);
final int pwLength = prefs.getInt(PREF_PASSWORD_LENGTH, 0);
final int maxFailedPw = prefs.getInt(PREF_MAX_FAILED_PW, 0);
boolean active = dpm.isAdminActive(componentName);
if (active) {
dpm.setPasswordQuality(componentName, pwQuality);
dpm.setPasswordMinimumLength(componentName, pwLength);
dpm.setMaximumFailedPasswordsForWipe(componentName, maxFailedPw);
}
}*/
}
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- 5.实现锁屏，等操作
mDevicePolicyManager.lockNow();
- 5.实现锁屏，等操作
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参考两位前辈的代码：
http://mzh3344258.blog.51cto.com/1823534/748998
http://blog.sina.com.cn/s/blog_46c97a9d0100ydr1.html