I am building an 'App locker' App in which I've displayed all the User Apps and System App in Listview, and I've added a toggle button to this listview, on turning (toggle button) ON/OFF, I want to lock/unlock the app of the phone. And lock is based on Pattern. Whenever the App, which I locked, there should appear a Pattern Lock for Unlocking the app. For this I need to grant my App USAGE ACCESS. How to achieve that Thanks!

Hello, Welcome to our Microsoft Q&A platform! Whenever the App, which I locked, there should appear a Pattern Lock for Unlocking the app. For this I need to grant my App USAGE ACCESS. The PACKAGE_USAGE_STATS is a dangerous permission which cannot be requested in a pop-up dialog at runtime such as requesting the READ_EXTERNAL_STORAGE permission. We can only guide the user to open the Apps with strong text Usage Access setting page. Here is the code to open the Setting Application page StartActivity(new Intent(Android.Provider.Settings.ActionUsageAccessSettings)); Best Regards, Jarvan Zhang If the response is helpful, please click " Accept Answer " and upvote it. Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Usage access permission - Microsoft Q&A

Accepted answer

JarvanZhang 23,951 Reputation points

2021-06-24T03:12:27.54+00:00
Hello,

Welcome to our Microsoft Q&A platform!

Whenever the App, which I locked, there should appear a Pattern Lock for Unlocking the app. For this I need to grant my App USAGE ACCESS.

The PACKAGE_USAGE_STATS is a dangerous permission which cannot be requested in a pop-up dialog at runtime such as requesting the READ_EXTERNAL_STORAGE permission. We can only guide the user to open the Apps with strong textUsage Access setting page.

Here is the code to open the Setting Application page

StartActivity(new Intent(Android.Provider.Settings.ActionUsageAccessSettings));

Best Regards,

Jarvan Zhang

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Sheikh Shuaib Ashraf 21 Reputation points

2021-06-24T07:24:23.543+00:00

Sir, Thanks for the reply, I Implemented this using dependency in android on button click. But I can't see my app in there in the grant access section in phone. Do I need to do more stuff for achieving the same
Thanks

JarvanZhang 23,951 Reputation points

2021-06-24T07:34:05.603+00:00

@Sheikh Shuaib Ashraf Please make sure the PACKAGE_USAGE_STATS permisson has been added to AndroidManifest.xml.

<manifest ...> ... <uses-permission android:name="android.permission.PACKAGE_USAGE_STATS" /> </manifest>

Sheikh Shuaib Ashraf 21 Reputation points

2021-06-24T08:04:37.553+00:00

Thanks a lot sir.

Sheikh Shuaib Ashraf 21 Reputation points

2021-06-24T08:22:59.343+00:00

Sir, how to check if the permission is granted
Thanks

JarvanZhang 23,951 Reputation points

2021-06-24T08:36:43.453+00:00

Try getting the AppOpsManager service to check the permission's grant status.

AppOpsManager appOps = (AppOpsManager)this.GetSystemService(Context.AppOpsService); bool granted = appOps.CheckOpNoThrow("android:get_usage_stats", Process.MyUid(), PackageName) == AppOpsManagerMode.Allowed; if (!granted) { StartActivity(new Intent(Android.Provider.Settings.ActionUsageAccessSettings)); }

Sheikh Shuaib Ashraf 21 Reputation points

2021-06-24T13:07:57.65+00:00

Worked fine but it "AppOpsManager.CheckOpNoThrow" show depreciated method.

Now, will implement the pattern lock. if you suggest anything that will be highly appreciated
Thanks

JarvanZhang 23,951 Reputation points

2021-06-30T08:03:44.887+00:00

Sorry for late reply. The AppOpsManager.CheckOpNoThrow command seems to be depreciated, you could use AppOpsManagerCompat.NoteOpNoThrow instead.

int status = AppOpsManagerCompat.NoteOpNoThrow(Application.Context, "android:get_usage_stats", Process.MyUid(), this.PackageName); if (status == 1)//0 represents permission has been allowed { StartActivity(new Intent(Android.Provider.Settings.ActionUsageAccessSettings)); }
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