这几天有个项目,在一个服务中接收到一个推送,然后实现锁屏
1、Java代码中 自定义一个广播类继承DeviceAdminReceiver类
public class MyReceiver extends DeviceAdminReceiver { }
2、在清单文件中注册广播
<receiver android:name=".receiver.MyReceiver" android:description="@string/app_name" android:label="@string/app_name" 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>3、在res目录下创建一个xml文件夹,在文件夹中创建device_admin_sample文件
<device-admin xmlns:android="http://schemas.android.com/apk/res/android"> <uses-policies> <reset-password /> <force-lock /> <wipe-data /> </uses-policies> </device-admin>
4、在Activity的中检查是否有权限和权限申请
policyManager = (DevicePolicyManager) getSystemService(Context.DEVICE_POLICY_SERVICE); componentName = new ComponentName(this, MyReceiver.class);
if (!policyManager.isAdminActive(componentName)){ //激活设备管理器 Intent intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN); intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, componentName); intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION, "锁屏"); startActivity(intent); }
5、权限申请成功后就是代码实现了
policyManager .lockNow(); // 锁屏policyManager .resetPassword("123", 0); // 设置锁屏密码