Android设备管理员权限活动未启动

概述我正在尝试以设备管理员身份启用我的应用程序.尝试调用活动的代码如下所示,该活动为我的应用程序提供了设备管理员权限,该活动位于我的应用程序的第一个活动中： import android.app.Activity;import android.app.admin.DevicePolicyManager;import android.content.ComponentName;import and 我正在尝试以设备管理员身份启用我的应用程序.尝试调用活动的代码如下所示,该活动为我的应用程序提供了设备管理员权限,该活动位于我的应用程序的第一个活动中：

import androID.app.Activity;import androID.app.admin.DevicePolicyManager;import androID.content.Componentname;import androID.content.Intent;import androID.os.Bundle;import androID.util.Log;import androID.vIEw.VIEw;import androID.Widget.button;import androID.Widget.EditText;import androID.Widget.Toast;import com.Google.androID.gms.common.GooglePlayServicesUtil;public class Registeractivity extends Activity {    // alert dialog manager    AlertDialogManager alert = new AlertDialogManager();    // Internet detector    ConnectionDetector cd;    // UI elements    EditText txtname;    EditText txtEmail;    // Register button    button btnRegister;    static final int ACTIVATION_REQUEST = 47; //Request ID for Device administrator    @OverrIDe    public voID onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.activity_register);        //Unrelated         int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);        if (status != 0) {            Toast.makeText(this,"This device is not supported - please download Google Play Services.",Toast.LENGTH_LONG).show();        }        //Begin enabling device administrator         Intent intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_admin);        Componentname deviceadminComponentname = new Componentname(this,Deviceadmin.class);        intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_admin,deviceadminComponentname);          intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION,"You must enable device administration for certain features"                + " of the app to function.");          //I thought that this would start the activity that lets the user        //choose whether to enable the app as a device admin        startActivityForResult(intent,ACTIVATION_REQUEST);        //Also contains code pertaining to unrelated Google Cloud messaging features        //and an onClick() method,all insIDe of onCreate()        }@OverrIDeprotected voID onActivityResult(int requestCode,int resultCode,Intent data) {    switch (requestCode) {        case ACTIVATION_REQUEST:            if (resultCode == Activity.RESulT_OK) {                Log.i("DeviceadminSample","administration enabled!");            }             else {                Log.i("DeviceadminSample","administration enable Failed!");            }            return;    }    super.onActivityResult(requestCode,resultCode,data);}

使用此代码,当我运行我的应用程序时,活动出现,然后有动画,它看起来正在打开一个新活动,但然后该动画停止并保持当前活动而不提示用户启用设备管理.我的所有关于设备管理员的日志消息都没有被点击.但是,在Settings-> Security->设备管理员页面上查看当前的设备管理员时,我的应用程序会显示但是作为设备管理员取消选中.

这是我的Deviceadmin子类的代码,虽然我无法在此代码中看到问题的来源：

import androID.app.admin.DeviceadminReceiver;import androID.content.Context;import androID.content.Intent;import androID.util.Log;public class Deviceadmin extends DeviceadminReceiver {    @OverrIDe    public voID onEnabled(Context context,Intent intent) {        super.onEnabled(context,intent);        Log.i("Device admin: ","Enabled");    }    @OverrIDe    public String ondisableRequested(Context context,Intent intent) {        return "admin disable requested";    }    @OverrIDe    public voID onDisabled(Context context,Intent intent) {        super.onDisabled(context,"Disabled");    }    @OverrIDe    public voID onPasswordChanged(Context context,Intent intent) {        super.onPasswordChanged(context,"Password changed");    }}

任何帮助将不胜感激！

更新：AndroID Manifest中的Device admin接收器如下：

<!-- Device administration Receiver -->    <receiver        androID:name="com.myPackage.DeviceadminReceiver"        androID:permission="androID.permission.BIND_DEVICE_admin">        <Meta-data androID:name="androID.app.device_admin"                   androID:resource="@xml/device_admin" />        <intent-filter>            <action androID:name="androID.app.action.DEVICE_admin_ENABLED" />            <action androID:name="androID.app.action.ACTION_DEVICE_admin_disABLE_REQUESTED" />            <action androID:name="androID.app.action.ACTION_DEVICE_admin_Disabled" />        </intent-filter>               </receiver>

解决方法 我猜你忘了用正确的意图过滤器在清单中添加接收器

<receiver        androID:name="com.yourpackage.Deviceadmin"        androID:permission="androID.permission.BIND_DEVICE_admin" >        <intent-filter>            This action is required            <action androID:name="androID.app.action.DEVICE_admin_ENABLED" />        </intent-filter>        This is required this receiver to become device admin component.        <Meta-data            androID:name="androID.app.device_admin"            androID:resource="@xml/device_admin" />    </receiver>

和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>

有关设备管理的更多信息. Check this

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