前言
本文主要介紹了關于android/276332.html">android實現一鍵鎖屏和一鍵卸載的相關內容，分享出來供大家參考學習，這兩個功能也是大家在開發中會遇到的兩個需求，下面話不多說了，來一起看看詳細的介紹吧。
一.設備管理器操作步驟
1.創建類DeviceAdminReceiver的子類
如：com.itheima62.lockscreen.DeviceAdminSample
2.在清單文件中配置廣播接收者
<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.配置字符串相關信息
<string name="activity_sample_device_admin">設備管理員</string><string name="sample_device_admin">管理員</string><string name="sample_device_admin_description">開啟設備管理員，不開啟扣2000塊</string>
4.在res目錄下創建xml文件夾，在該文件夾下創建device_admin_sample.xml文件，內容：
<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.在代碼中創建設備管理器和組件
dpm = (DevicePolicyManager) getSystemService(DEVICE_POLICY_SERVICE); ComponentName who = new ComponentName(this, DeviceAdminSample.class);
6.寫功能
dpm.lockNow();一鍵鎖屏
二.源代碼
創建類DeviceAdminReceiver的子類
package com.example.suoping;import android.app.admin.DeviceAdminReceiver;public class DeviceAdminSample extends DeviceAdminReceiver{}MainActivity
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 * 一鍵鎖屏 */ public void lockScreen(View v) { //如果沒有激活設備管理員，提醒給用戶做事 ComponentName who = new ComponentName(this, DeviceAdminSample.class); if (dpm.isAdminActive(who)) { dpm.lockNow();//一鍵鎖屏 finish(); } else { Intent intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN); intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, who); intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION, "設備管理器，，，，，，，，，，，，，，，，"); startActivityForResult(intent, 1); } } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu); return true; }}RemoveActivity
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); } /** * 一鍵卸載 * @param v */ public void remove(View v) { // 取消激活設備管理 DevicePolicyManager dpm = (DevicePolicyManager) getSystemService(DEVICE_POLICY_SERVICE); ComponentName who = new ComponentName(this, DeviceAdminSample.class); dpm.removeActiveAdmin(who);//取消激活管理設備 //卸載 Intent remove = new Intent("android.intent.action.DELETE"); remove.addCategory("android.intent.category.DEFAULT"); remove.setData(Uri.parse("package:" + getPackageName())); startActivity(remove);//卸載用戶apk的界面 }}布局文件
MainActivity.xml
<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
<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
<?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="一鍵鎖屏" > <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="一鍵卸載" > <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
<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
<resources> <string name="app_name">一鍵鎖屏</string> <string name="action_settings">Settings</string> <string name="hello_world">Hello world!</string> <string name="activity_sample_device_admin">設備管理員</string> <string name="sample_device_admin">管理員</string> <string name="sample_device_admin_description">開啟設備管理員，不開啟扣2000塊</string></resources>
總結
以上就是這篇文章的全部內容了，希望本文的內容對大家的學習或者工作具有一定的參考學習價值，如果有疑問大家可以留言交流，謝謝大家對VEVB武林網的支持。
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