本文主要介绍了关于android实现一键锁屏和一键卸载的相关内容,分享出来供大家参考学习,这两个功能也是大家在开发中会遇到的两个需求,下面话不多说了,来一起看看详细的介绍吧。
<强> 1。创建类DeviceAdminReceiver的子类
如:<代码> com.itheima62.lockscreen.DeviceAdminSample
<强> 2。在清单文件中配置广播接收者
& lt;接收机
android: name=" com.itheima62.lockscreen.DeviceAdminSample "
android:描述=" @string/sample_device_admin_description”
android: label=" @string/sample_device_admin”
android:许可=" android.permission。祝辞BIND_DEVICE_ADMIN”;
& lt;元数据
android: name=" android.app.device_admin "
android:资源=癅xml/device_admin_sample”/比;
& lt; intent-filter>
& lt;行动android: name=" android.app.action。DEVICE_ADMIN_ENABLED”/比;
& lt;/intent-filter>
& lt;/receiver>
<强> 3。配置字符串相关信息
& lt;字符串名称=" activity_sample_device_admin "祝辞设备管理员& lt;/string>
& lt;字符串名称=" sample_device_admin "祝辞管理员& lt;/string>
& lt;字符串名称=皊ample_device_admin_description”在开启设备管理员,不开启扣2000块& lt;/string>
<>强4。在res目录下创建xml文件夹,在该文件夹下创建device_admin_sample.xml文件,内容:
& lt; device-admin xmlns: android=" http://schemas.android.com/apk/res/android "比;
& lt; uses-policies>
& lt; limit-password/比;
& lt; watch-login/比;
& lt; reset-password/比;
& lt; force-lock/比;
& lt;删除数据/比;
& lt; expire-password/比;
& lt;加密存储/比;
& lt; disable-camera/比;
& lt;/uses-policies>
& lt;/device-admin>
<强> 5。在代码中创建设备管理器和组件
dpm=(DevicePolicyManager) getSystemService (DEVICE_POLICY_SERVICE);
ComponentName=新ComponentName(这个,DeviceAdminSample.class);
<强> 6。写功能
dpm.lockNow();一键锁屏
创建类DeviceAdminReceiver的子类
包com.example.suoping;
进口android.app.admin.DeviceAdminReceiver;
公共类DeviceAdminSample DeviceAdminReceiver延伸
{
}
MainActivity
包com.example.suoping;
进口android.app.Activity;
进口android.app.admin.DevicePolicyManager;
进口android.content.ComponentName;
进口android.content.Intent;
进口android.os.Bundle;
进口android.view.Menu;
进口android.view.View;
公开课MainActivity延伸活动
{
私人DevicePolicyManager dpm;
@Override
保护空白>
包com.example.suoping;
进口android.app.Activity;
进口android.app.admin.DevicePolicyManager;
进口android.content.ComponentName;
进口android.content.Intent;
进口android.net.Uri;
进口android.os.Bundle;
进口android.view.View;
公开课RemoveActivity延伸活动
{
@Override
保护空白>
& lt; RelativeLayout xmlns: android=" http://schemas.android.com/apk/res/android "
xmlns:工具=" http://schemas.android.com/tools "
android: layout_width=" match_parent "
android: layout_height=" match_parent "
android:背景=" # 00000000 "比;
& lt;/RelativeLayout>
RemoveActivity.xml
& lt; RelativeLayout xmlns: android=" http://schemas.android.com/apk/res/android "
xmlns:工具=" http://schemas.android.com/tools "
android: layout_width=" match_parent "
android: layout_height=" match_parent "
android:背景=" # 00000000 "
比;
& lt;/RelativeLayout>
AndroidManifest.xml
& lt; & # 63; xml version=" 1.0 " encoding=" utf - 8 " & # 63;比;
& lt;清单xmlns: android=" http://schemas.android.com/apk/res/android "
包=" com.example.suoping "
android: versionCode=" 1 "
android: versionName=" 1.0 "比;
& lt; uses-sdk
android: minSdkVersion=" 8 "
android: targetSdkVersion=?8”/比;
& lt;应用程序
android: allowBackup=" true "
android:图标=" @drawable/ic_launcher”
android:主题=癅style/AppTheme”比;
& lt;活动
android: name=" com.example.suoping.MainActivity "
android: label="一键锁屏”在
& lt; intent-filter>
& lt;行动android: name=" android.intent.action.MAIN "/比;
& lt;类别android: name=" android.intent.category.LAUNCHER "/比;
& lt;/intent-filter>
& lt;/activity>
& lt;活动
android: name=" com.example.suoping.RemoveActivity "
android: label="一键卸载”比;
& lt; intent-filter>
& lt;行动android: name=" android.intent.action.MAIN "/比;
& lt;类别android: name=" android.intent.category.LAUNCHER "/比;
& lt;/intent-filter>
& lt;/activity>
& lt;接收机
android: name=" com.example.suoping.DeviceAdminSample "
android:描述=" @string/sample_device_admin_description”
android: label=" @string/sample_device_admin”
android:许可=" android.permission。祝辞BIND_DEVICE_ADMIN”;
& lt;元数据
android: name=" android.app.device_admin "
android:资源=癅xml/device_admin_sample”/比;
& lt; intent-filter>
& lt;行动android: name=" android.app.action。DEVICE_ADMIN_ENABLED”/比;
& lt;/intent-filter>
& lt;/receiver>
& lt;/application>
& lt;/manifest>
