Question

当使用LocationManager和FusedLocationProviderClient请求位置更新时，我无法在我的应用程序中收到位置更新。所以我尝试了下面的代码来允许我的应用程序中的位置更新，但它无法正常工作。

manager = (DevicePolicyManager)
            getSystemService(Context.DEVICE_POLICY_SERVICE);
if (manager.isProfileOwnerApp(getApplicationContext().getPackageName())) {
        ComponentName componentName = new ComponentName(this, CommCareDeviceAdminReceiver.class);
        manager.setSecureSetting(componentName, Settings.Secure.LOCATION_MODE, String.valueOf(Settings.Secure.LOCATION_MODE_HIGH_ACCURACY));
    }

我在logcat中收到以下错误 -

06-15 20:00:33.885 18226-18226/? W/System.err: java.lang.SecurityException: Permission denial: Profile owners cannot update location_mode
    at android.os.Parcel.readException(Parcel.java:1684)
    at android.os.Parcel.readException(Parcel.java:1637)
    at android.app.admin.IDevicePolicyManager$Stub$Proxy.setSecureSetting(IDevicePolicyManager.java:6238)
    at android.app.admin.DevicePolicyManager.setSecureSetting(DevicePolicyManager.java:5533)
    at org.commcare.devicepolicycontroller.CommCareDeviceAdminReceiver.enableProfile(CommCareDeviceAdminReceiver.java:69)
    at org.commcare.devicepolicycontroller.CommCareDeviceAdminReceiver.onProfileProvisioningComplete(CommCareDeviceAdminReceiver.java:51)
    at android.app.admin.DeviceAdminReceiver.onReceive(DeviceAdminReceiver.java:665)
    at android.app.ActivityThread.handleReceiver(ActivityThread.java:3061)
    at android.app.ActivityThread.-wrap18(ActivityThread.java)
06-15 20:00:33.886 18226-18226/? W/System.err:     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1574)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:154)
    at android.app.ActivityThread.main(ActivityThread.java:6165)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:888)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:778)

到目前为止，我找到了link，这对我来说现在没有多大帮助。有人可以帮我指导这个问题吗？

Answer 1

经过近5天的研究，我找到了解决此问题的方法。

此link帮助我找到了解决此问题的方法。

要请求为“工作/托管个人资料”启用管理员访问权限，我们需要执行以下操作：

/**
 * Initiates the managed profile provisioning. If we already have a managed profile set up on
 * this device, we will get an error dialog in the following provisioning phase.
 */
private void provisionManagedProfile() {
    Activity activity = getActivity();
    if (null == activity) {
        return;
    }

    PackageManager packageManager = activity.getPackageManager();

    if (!packageManager.hasSystemFeature(PackageManager.FEATURE_MANAGED_USERS)) {
        String message = getString(R.string.managed_users_unsupported);
        HyperLog.e(Constants.TAG, message);
        ((TextView)activity.findViewById(R.id.setup_text)).setText(message);
        return;
    }

    Intent intent = new Intent(ACTION_PROVISION_MANAGED_PROFILE);
    if (Build.VERSION.SDK_INT >= 24) {
        intent.putExtra(DevicePolicyManager.EXTRA_PROVISIONING_DEVICE_ADMIN_COMPONENT_NAME,
                CommCareDeviceAdminReceiver.getComponentName(activity));
    }
    else {
        intent.putExtra(EXTRA_PROVISIONING_DEVICE_ADMIN_PACKAGE_NAME,
                activity.getApplicationContext().getPackageName());
        intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, CommCareDeviceAdminReceiver.getComponentName(activity));
    }
    if (intent.resolveActivity(packageManager) != null) {
        startActivityForResult(intent, REQUEST_PROVISION_MANAGED_PROFILE);
        activity.finish();
    } else {
        Toast.makeText(activity, "Device provisioning is not enabled. Stopping.",
                Toast.LENGTH_SHORT).show();
    }
}

启用该功能后，您需要在onEnabled的DeviceAdminReceiver方法中添加以下代码。我们将使用setPermissionGrantState中的DevicePolicyManager方法。此外，我们还可以使用addUseRestriction方法来阻止这些托管个人资料用户进入安全模式。

/**
* Handles events related to managed profile.
*/
public class MyDeviceAdminReceiver extends DeviceAdminReceiver {

    /**
    * Called after the administrator is first enabled
    */
    @Override
    public void onEnabled(Context context, Intent intent) {
        super.onEnabled(context, intent);
        DevicePolicyManager manager =
            (DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE);
        if (manager != null) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {

                //ADDING DYNAMIC LOCATIONS PERMISSIONS IS VERY IMPORTANT IS MANAGED PROFILE

                manager.setPermissionGrantState(getComponentName(context)
                        , "com.example.mypackagename"
                        , Manifest.permission.ACCESS_FINE_LOCATION
                        , DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED);
                manager.setPermissionGrantState(getComponentName(context)
                        , "com.example.mypackagename"
                        , Manifest.permission.ACCESS_COARSE_LOCATION
                        , DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED);
                //------------------------------------------


                // To disable safe boot
                manager.addUserRestriction(getComponentName(context), UserManager.DISALLOW_SAFE_BOOT);
                // To enable safe boot again
                // manager.clearUserRestriction(admin, UserManager.DISALLOW_SAFE_BOOT);

                Log.i(TAG, "addUserRestriction is done");
            }
        }
    }
}

此代码可以正常工作并经过正确测试。

我希望这可以帮助寻找相似答案的人。

谢谢。

位置更新在设备管理/托管工作配置文件模式下无效

1 个答案: