前言
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。
一.设备管理器操作步骤
1.创建类DeviceAdminReceiver的子类
如：com.itheima62.lockscreen.DeviceAdminSample
2.在清单文件中配置广播接收者
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<receiver android:name="com.itheima62.lockscreen.DeviceAdminSample" 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> |
3.配置字符串相关信息
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<string name="activity_sample_device_admin">设备管理员</string><string name="sample_device_admin">管理员</string><string name="sample_device_admin_description">开启设备管理员，不开启扣2000块</string> |
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：
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<device-admin xmlns:android="http://schemas.android.com/apk/res/android"> <uses-policies> <limit-password /> <watch-login /> <reset-password /> <force-lock /> <wipe-data /> <expire-password /> <encrypted-storage /> <disable-camera /> </uses-policies></device-admin> |
5.在代码中创建设备管理器和组件
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dpm = (DevicePolicyManager) getSystemService(DEVICE_POLICY_SERVICE); ComponentName who = new ComponentName(this, DeviceAdminSample.class); |
6.写功能
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dpm.lockNow();一键锁屏 |
二.源代码
创建类DeviceAdminReceiver的子类
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package com.example.suoping;import android.app.admin.DeviceAdminReceiver;public class DeviceAdminSample extends DeviceAdminReceiver{} |
MainActivity
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package com.example.suoping;import android.app.Activity;import android.app.admin.DevicePolicyManager;import android.content.ComponentName;import android.content.Intent;import android.os.Bundle;import android.view.Menu;import android.view.View;public class MainActivity extends Activity{ private DevicePolicyManager dpm; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //setContentView(R.layout.activity_main); dpm = (DevicePolicyManager) getSystemService(DEVICE_POLICY_SERVICE); lockScreen(null); } /** * @param v * 一键锁屏 */ public void lockScreen(View v) { //如果没有激活设备管理员，提醒给用户做事 ComponentName who = new ComponentName(this, DeviceAdminSample.class); if (dpm.isAdminActive(who)) { dpm.lockNow();//一键锁屏 finish(); } else { Intent intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN); intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, who); intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION, "设备管理器，，，，，，，，，，，，，，，，"); startActivityForResult(intent, 1); } } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu); return true; }} |
RemoveActivity
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package com.example.suoping;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;public class RemoveActivity extends Activity{ @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); remove(null); } /** * 一键卸载 * @param v */ public void remove(View v) { // 取消激活设备管理 DevicePolicyManager dpm = (DevicePolicyManager) getSystemService(DEVICE_POLICY_SERVICE); ComponentName who = new ComponentName(this, DeviceAdminSample.class); dpm.removeActiveAdmin(who);//取消激活管理设备 //卸载 Intent remove = new Intent("android.intent.action.DELETE"); remove.addCategory("android.intent.category.DEFAULT"); remove.setData(Uri.parse("package:" + getPackageName())); startActivity(remove);//卸载用户apk的界面 }} |
布局文件
MainActivity.xml
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<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" android:background="#00000000"></RelativeLayout> |
RemoveActivity.xml
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<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" android:background="#00000000" ></RelativeLayout> |
AndroidManifest.xml
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<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.suoping" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="18" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:theme="@style/AppTheme" > <activity android:name="com.example.suoping.MainActivity" android:label="一键锁屏" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name="com.example.suoping.RemoveActivity" android:label="一键卸载" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <receiver android:name="com.example.suoping.DeviceAdminSample" 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> |
device_admin_sample.xml
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<device-admin xmlns:android="http://schemas.android.com/apk/res/android"> <uses-policies> <limit-password /> <watch-login /> <reset-password /> <force-lock /> <wipe-data /> <expire-password /> <encrypted-storage /> <disable-camera /> </uses-policies></device-admin> |
strings.xml
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<resources> <string name="app_name">一键锁屏</string> <string name="action_settings">Settings</string> <string name="hello_world">Hello world!</string> <string name="activity_sample_device_admin">设备管理员</string> <string name="sample_device_admin">管理员</string> <string name="sample_device_admin_description">开启设备管理员，不开启扣2000块</string></resources> |
总结
以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作具有一定的参考学习价值，如果有疑问大家可以留言交流，谢谢大家对服务器之家的支持。
原文链接：https://blog.csdn.net/jiang_xinxing/article/details/79346978
