设备管理器

    1,查看google文档Administration---->device polices---->清单文件的配置mainfest.xml
    2,将mainfest.xml广播接受者子类创建出来DeviceAdmin继承至DeviceAdminReceiver
    3,将清单文件中的错误进行修复(字符串创建,xml文件创建)
    4,xml文件夹
        <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,开启激活界面的activity
        ComponentName mDeviceAdminSample = new ComponentName(context, DeviceAdmin.class);

        Intent intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN);
        intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, mDeviceAdminSample);
        intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION,
            mActivity.getString(R.string.add_admin_extra_app_text));
        startActivity(intent);

    前提:必须激活当前应用
    6,一键锁屏
        //获取设备的管理者对象
        DevicePolicyManager mDPM = (DevicePolicyManager) getSystemService(Context.DEVICE_POLICY_SERVICE);
        //锁屏
        mDPM.lockNow();
    7,一键清除数据
        mDPM.wipeData();
    8,一键卸载
        在设备管理器中没有激活,可以卸载
        在设备管理器中有做激活,不可以卸载,系统会提示取消在设备管理器中激活,然后才可以卸载

        卸载?android系统自带功能,看源码,卸载界面

        查看packageInstaller源码,找到uninstallActivity源码,
        匹配对应的action,category,data(应用的包名)去卸载指定应用

public class MainActivity extends Activity {

    private ComponentName mDeviceAdminSample;
    private DevicePolicyManager mDPM;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        Button bt_start = (Button) findViewById(R.id.bt_start);
        Button bt_lock = (Button) findViewById(R.id.bt_lock);
        Button bt_wipedata = (Button) findViewById(R.id.bt_wipedata);
        Button bt_uninstall = (Button) findViewById(R.id.bt_uninstall);
        
        //(上下文环境,广播接受者对应的字节码文件)
        
        //组件对象可以作为是否激活的判断标志
        mDeviceAdminSample = new ComponentName(this, DeviceAdmin.class);
        mDPM = (DevicePolicyManager) getSystemService(Context.DEVICE_POLICY_SERVICE);
                
        bt_start.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                //开启设备管理器的activity
                Intent intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN);
                intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, mDeviceAdminSample);
                intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION,"设备管理器");
                startActivity(intent);
            }
        });
        
        bt_lock.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                //是否开启的判断
                if(mDPM.isAdminActive(mDeviceAdminSample)){
                    //激活--->锁屏
                    mDPM.lockNow();
                    //锁屏同时去设置密码
                    mDPM.resetPassword("123", 0);
                }else{
                    Toast.makeText(getApplicationContext(), "请先激活", 0).show();
                }
            }
        });
        
        bt_wipedata.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                if(mDPM.isAdminActive(mDeviceAdminSample)){
                    mDPM.wipeData(0);//手机数据
//                    mDPM.wipeData(DevicePolicyManager.WIPE_EXTERNAL_STORAGE);//手机sd卡数据
                }else{
                    Toast.makeText(getApplicationContext(), "请先激活", 0).show();
                }
            }
        });
        
        bt_uninstall.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent("android.intent.action.DELETE");
                intent.addCategory("android.intent.category.DEFAULT");
                intent.setData(Uri.parse("package:"+getPackageName()));
                startActivity(intent);
            }
        });
    }

}

package com.example.device;

import android.app.admin.DeviceAdminReceiver;
import android.content.Context;
import android.content.Intent;

public class DeviceAdmin extends DeviceAdminReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        super.onReceive(context, intent);
    }
}