Android Question Permission Denial error even when the permission is in the manifest [SOLVED]

[JohnC]

I have a code module that contain the below code. Even though I have the "android.permission.READ_EXTERNAL_STORAGE" permission in the manifest, I am still getting this error on an Android 8.x device.

Sub DoNotification(VibCount As Int, SoundURI As String, Vol As Int)
    Dim V As Float
    Dim Pv As PhoneVibrate
    
    Try
        If Starter.MP.IsPlaying Then
            Starter.MP.Stop
        End If
    Catch
        Log(LastException)
    End Try
    
    'play audio first
    If SoundURI.Trim <> "" Then
        Starter.MP.Load("ContentDir", SoundURI)
        V = Vol / 100
        Starter.MP.SetVolume(V,V)
        Starter.MP.Play
    End If
    
    If VibCount > 0 Then
        Do While VibCount > 0
            Log("VibCount=" & VibCount)
            Pv.Vibrate(1000)
            Sleep(2000)
            VibCount = VibCount - 1
        Loop
    End If
    
End Sub

common$ResumableSub_DoNotificationresume (java line: 207)
java.lang.SecurityException: Permission Denial: reading com.android.providers.media.MediaProvider uri content://media/external/audio/media/1395 from pid=1452, uid=10120 requires android.permission.READ_EXTERNAL_STORAGE, or grantUriPermission()
    at android.os.Parcel.readException(Parcel.java:2013)
    at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:183)
    at android.database.DatabaseUtils.readExceptionWithFileNotFoundExceptionFromParcel(DatabaseUtils.java:146)
    at android.content.ContentProviderProxy.openTypedAssetFile(ContentProviderNative.java:698)
    at android.content.ContentResolver.openTypedAssetFileDescriptor(ContentResolver.java:1410)
    at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:1247)
    at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:1170)
    at anywheresoftware.b4a.objects.MediaPlayerWrapper.loadAfterReset(MediaPlayerWrapper.java:91)
    at anywheresoftware.b4a.objects.MediaPlayerWrapper.Load(MediaPlayerWrapper.java:66)
    at com.comp.appcommon.common$ResumableSub_DoNotification.resume(common.java:207)
    at com.comp.appcommon.common._donotification(common.java:99)
    at com.comp.appcommon.commontimer._tmrmain_tick(commontimer.java:586)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:196)
    at anywheresoftware.b4a.objects.Timer$TickTack.run(Timer.java:105)
    at android.os.Handler.handleCallback(Handler.java:790)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:164)
    at android.app.ActivityThread.main(ActivityThread.java:6494)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

 

[JohnC]

It looks like only some of the sounds in the ringtone picker will generate this error, and all the other sounds play fine.

For example, if I select "Hangouts Message" it will play the sound when I tap on it while still in the ringtonepicker, but once it returns to my app, I will get this error if I try to play it.

Very weird.

 

[wes58]

It looks like only some of the sounds in the ringtone picker will generate this error, and all the other sounds play fine.

For example, if I select "Hangouts Message" it will play the sound when I tap on it while still in the ringtonepicker, but once it returns to my app, I will get this error if I try to play it.

Very weird.

RingtonePicker displays all sound files - which are stored on internal and external storage. That's why, if it happens that the sound you select is located on external storage you will get a permission error if it is not granted. You can see in the URI where the file is located.
In your case, from the error, you can see - "uri content://media/external/audio/..."

 

[JohnC]

Yes, the permissions fixed the error for typical URI's when using the MediaPlayer.

But I found that some of the default sounds had a URI of "content://settings/system/ringtone", which media player gave this error:

(FileNotFoundException) java.io.FileNotFoundException: Direct file access no longer supported; ringtone playback is available through android.media.Ringtone

So, it looks like those types of sounds will play with the RTM.Play method only.