Android 系统级APP锁屏

壮哥_icon2023-10-23 11:57

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权限：
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.DEVICE_POWER"/>

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代码：
DevicePolicyManager devicePolicyManager = (DevicePolicyManager) getSystemService(Context.DEVICE_POLICY_SERVICE);
ComponentName adminComponent = new ComponentName(this, WDeviceAdminReceiver.class);
if (devicePolicyManager.isAdminActive(adminComponent)) {
    devicePolicyManager.lockNow();
} else {
    // 如果设备管理器未激活，请提示用户激活设备管理器
    Intent intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN);
    intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, adminComponent);
    intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION, "请激活设备管理器以使用锁屏功能");
    startActivity(intent);
}

广播：

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public class WDeviceAdminReceiver extends DeviceAdminReceiver {
//空的就行
}

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<receiver
    android:name=".WDeviceAdminReceiver"
    android:permission="android.permission.BIND_DEVICE_ADMIN"
    android:exported="true">
    <meta-data
        android:name="android.app.device_admin"
        android:resource="@xml/device_admin" />
    <intent-filter>
        <action android:name="android.app.action.DEVICE_ADMIN_ENABLED" />
        <action android:name="android.app.action.DEVICE_ADMIN_DISABLED" />
    </intent-filter>
</receiver>

res下创建XML文件夹创建device_admin：：

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<?xml version="1.0" encoding="utf-8"?>
<device-admin xmlns:android="http://schemas.android.com/apk/res/android">
    <uses-policies>
        <force-lock />
    </uses-policies>
</device-admin>