android133 360 06 一键锁频，清楚数据

admin管理员组

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<RelativeLayout xmlns:android="http://schemas.android/apk/res/android"

xmlns:tools ="http://schemas.android/tools" android:layout_width ="match_parent" android:layout_height ="match_parent" > < Button android:id ="@+id/button1" android:layout_width ="wrap_content" android:layout_height ="wrap_content" android:layout_alignParentTop ="true" android:layout_centerHorizontal ="true" android:layout_marginTop ="139dp" android:onClick ="lockScreen" android:text ="一键锁屏" /> < Button android:id ="@+id/button2" android:layout_width ="wrap_content" android:layout_height ="wrap_content" android:layout_alignBottom ="@+id/button1" android:layout_centerHorizontal ="true" android:layout_marginBottom ="63dp" android:onClick ="activeAdmin" android:text ="激活设备管理器" /> < Button android:id ="@+id/button3" android:layout_width ="wrap_content" android:layout_height ="wrap_content" android:layout_below ="@+id/button1" android:layout_centerHorizontal ="true" android:layout_marginTop ="46dp" android:onClick ="unInstall" android:text ="卸载程序" /> < Button android:id ="@+id/button4" android:layout_width ="wrap_content" android:layout_height ="wrap_content" android:layout_alignRight ="@+id/button3" android:layout_below ="@+id/button3" android:layout_marginTop ="44dp" android:onClick ="clearData" android:text ="清除数据" /> </ RelativeLayout >

清单文件：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android/apk/res/android"
    package="com.itheima52.admin"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="16" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.itheima52.admin.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <!-- <string name="sample_device_admin_description">有了超级设备管理器,可以一键锁屏,清除数据等等</string>
        <string name="sample_device_admin">超级设备管理器</string> -->
        <receiver
            android:name=".AdminReceiver"
            <!-- 
            import android.app.admin.DeviceAdminReceiver;
            public class AdminReceiver extends DeviceAdminReceiver {
            } 
            -->
            android:description="@string/sample_device_admin_description"    receive的描述
            android:label="@string/sample_device_admin"                receive的说明
            android:permission="android.permission.BIND_DEVICE_ADMIN" >        权限
            <meta-data
                android:name="android.app.device_admin"
                android:resource="@xml/device_admin_sample" />   需要的xml文件，表示有哪些功能
                    <!-- 
                    res/xml/device_admin_sample.xml
                    <device-admin xmlns:android="http://schemas.android/apk/res/android">
                      <uses-policies>
                        <limit-password />
                        <watch-login />
                        <reset-password />
                        <force-lock />        锁频
                        <wipe-data />        清楚数据
                        <expire-password />
                        <encrypted-storage />
                        <disable-camera />
                      </uses-policies>
                    </device-admin> 
                    -->
            <intent-filter>
                <action android:name="android.app.action.DEVICE_ADMIN_ENABLED" />
            </intent-filter>
        </receiver>
    </application>
</manifest>

package com.itheima52.admin;

import android.app.Activity;
import android.app.admin.DevicePolicyManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;

public class MainActivity extends Activity {

    private DevicePolicyManager mDPM;//用来锁频，激活密码，清楚数据，先要激活设备管理器
    private ComponentName mDeviceAdminSample;// 设备管理组件,用来激活设备管理器

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mDPM = (DevicePolicyManager) getSystemService(Context.DEVICE_POLICY_SERVICE);// 获取设备策略服务
        mDeviceAdminSample = new ComponentName(this, AdminReceiver.class);// 设备管理组件

        // mDPM.lockNow();// 立即锁屏
        // finish();
    }

    // 激活设备管理器, 也可以在设置->安全->设备管理器中手动激活(要使用超级设备管理器就要先激活设备管理器)。
    public void activeAdmin(View view) {
        Intent intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN);
        intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN,mDeviceAdminSample);
        intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION,"哈哈哈, 我们有了超级设备管理器, 好NB!");
        startActivity(intent);
    }

    // 一键锁屏
    public void lockScreen(View view) {
        if (mDPM.isAdminActive(mDeviceAdminSample)) {// 判断设备管理器是否已经激活
            mDPM.lockNow();// 立即锁屏，调用lockNow()，先要激活设备管理器
            mDPM.resetPassword("123456", 0);//激活密码，先要激活设备管理器
        } else {
            Toast.makeText(this, "必须先激活设备管理器!", Toast.LENGTH_SHORT).show();
        }
    }

    public void clearData(View view) {
        if (mDPM.isAdminActive(mDeviceAdminSample)) {// 判断设备管理器是否已经激活
            mDPM.wipeData(0);// 清除数据,恢复出厂设置
        } else {
            Toast.makeText(this, "必须先激活设备管理器!", Toast.LENGTH_SHORT).show();
        }
    }

    public void unInstall(View view) {
        mDPM.removeActiveAdmin(mDeviceAdminSample);// 取消设备管理权限

        // 卸载程序
        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.addCategory(Intent.CATEGORY_DEFAULT);
        intent.setData(Uri.parse("package:" + getPackageName()));
        startActivity(intent);
    }
}

 

本文转自农夫山泉别墅博客园博客，原文链接：http://wwwblogs/yaowen/p/5118370.html，如需转载请自行联系原作者

本文标签： 一键数据