How to update metadata of audio file in Android Q media store?

Question

Updating metadata of audio file in media store is not working in Android Q OS, it works in all other OS.

I am using content provider with uri specified as MediaStore

Answer 1

Finally, it took some time but I figured that out.

First, you need to obtain access to file. Here you can read about that

Next, I found out that to update title or artist fields (maybe others to, I didn't test them) you need to set column MediaStore.Audio.Media.IS_PENDING value to 1. Like that:

    val id = //Your audio file id

    val values = ContentValues()
    values.put(MediaStore.Audio.Media.IS_PENDING, 1)

    val uri = ContentUris.withAppendedId(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, id)
    contentResolver.update(uri, values, null, null)

And then you can edit fields that you need. Also to end the update process set MediaStore.Audio.Media.IS_PENDING to 0 again:

    val id = //Your audio file id
    val title = //New title
    val artist = //New artist

    val values = ContentValues()
    values.put(MediaStore.Audio.Media.IS_PENDING, 0)
    values.put(MediaStore.Audio.Media.TITLE, title)
    values.put(MediaStore.Audio.Media.ARTIST, artist)

    val uri = ContentUris.withAppendedId(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, id)
    contentResolver.update(uri, values, null, null)

So in one function, it would look like this:

    @RequiresApi(value = android.os.Build.VERSION_CODES.Q)
    fun updateMetadata(contentResolver: ContentResolver, id: Long, title: String, artist: String) {
        val uri = ContentUris.withAppendedId(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, id)
        val values = ContentValues()

        values.put(MediaStore.Audio.Media.IS_PENDING, 1)
        contentResolver.update(uri, values, null, null)

        values.clear()
        values.put(MediaStore.Audio.Media.IS_PENDING, 0)
        values.put(MediaStore.Audio.Media.TITLE, title)
        values.put(MediaStore.Audio.Media.ARTIST, artist)
        contentResolver.update(uri, values, null, null)
    }

It's written in Kotlin but I think you will figure out how to do that in java.

UPD

By updating MediaStore you don't updating real file at any android version. That means, if a file would be updated (for example: renamed) and/or scanned by MediaScannerConnection your changes will be lost. This answer is right.