Properly querying MediaStore records on Android 11

user_10459304 0
Viewed 274

I am working on providing Android 11 support on my audio/video player app. My main concern is actually with not provoking the Google tribe with their no All files access permission allowed for player apps. I do not want my app to be rejected on publishing on the Google store.

In previous APIs, I am using WRITE_EXTERNAL_STORAGE permission including Android 10 (where I opt out off Scoped Storage). Though, I do not know how to handle Android 11 without having my app rejected on publishing on Google store. I have learned that READ_EXTERNAL_STORAGE permission is needed for querying MediaStore records and I have the following questions:

  1. Will asking for READ_EXTERNAL_STORAGE on runtime on Android 11 be acceptable with Google (when I publish my app on their store)?
  2. Can I ask for WRITE_EXTERNAL_STORAGE permission on runtime instead of READ_EXTERNAL_STORAGE for all APIs and the system on Android 11 devices would substitute that for READ_EXTERNAL_STORAGE or will I need to add conditions where I ask for READ_EXTERNAL_STORAGE on Android 11 devices.
  3. Will asking for WRITE_EXTERNAL_STORAGE on runtime on Android 11 be acceptable with Google (when I publish my app on their store)?
storage-access-framework scoped-storage android java
2 Answers

you may use all these permissions without any ban from Google. you can't/shouldn't use MANAGE_EXTERNAL_STORAGE, new perm dedicated for Scoped Storage and file managing apps, antivirs and other "privileged" soft

user_42176820

  1. Here is function for getting list of all video

    fun getVideo():ArrayList {

         val   marrayList = ArrayList<Video>()
     val contentResolver =context?.contentResolver
     val uri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI
     val selection = "${MediaStore.Video.Media.DURATION} >= ?"
     val selectionArgs = arrayOf(
         TimeUnit.MILLISECONDS.convert(2, TimeUnit.SECONDS).toString()
     )
     val sortOrder = "${MediaStore.Video.Media.DISPLAY_NAME} ASC"
     val collection =
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
             MediaStore.Video.Media.getContentUri(
                 MediaStore.VOLUME_EXTERNAL
             )
         } else {
             MediaStore.Video.Media.EXTERNAL_CONTENT_URI
         }

     val cursor = contentResolver?.query(collection, null, selection, selectionArgs, sortOrder)
     if (cursor != null && cursor.getCount() > 0 && cursor.moveToFirst()) {

         val idColumn = cursor.getColumnIndexOrThrow(MediaStore.Video.Media._ID)
         val nameColumn =
             cursor.getColumnIndexOrThrow(MediaStore.Video.Media.DISPLAY_NAME)
         val titleCol =cursor.getColumnIndexOrThrow(MediaStore.Video.Media.TITLE)
         val date=cursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATE_ADDED)
         val durationColumn =
             cursor.getColumnIndexOrThrow(MediaStore.Video.Media.DURATION)
         val sizeColumn = cursor.getColumnIndexOrThrow(MediaStore.Video.Media.SIZE)

         while (cursor.moveToNext()) {

             val videoPath = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATA))
             val id = cursor.getLong(idColumn)
             val title=cursor.getString(titleCol)
             val name = cursor.getString(nameColumn)
             val duration = cursor.getInt(durationColumn)
             val mdate=cursor.getString(date)
             val size = cursor.getString(sizeColumn)
             val thumb =
                 ContentUris.withAppendedId(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, id)

             var duration_formatted: String
             val sec: Int = duration / 1000 % 60
             val min: Int = duration / (1000 * 60) % 60
             val hrs: Int = duration / (1000 * 60 * 60)

             duration_formatted = if (hrs == 0) {
                 min.toString() + ":" + String.format(Locale.UK, "%02d", sec)
             } else {
                 hrs.toString() + ":" + String.format(
                     Locale.UK,
                     "%02d",
                     min
                 ) + ":" + String.format(
                     Locale.UK, "%02d", sec
                 )
             }

             val folder = Video(thumb.toString(),id,title,name,size, duration_formatted, videoPath, mdate)
             marrayList.add(folder)

         }
         cursor.close()
     }
     return marrayList

    }

2.Here is all [source code]1 for video player project

user_141516980
Related