How to get drawable's resourceID from drawable name and make drawable's Uri in Android

Recently, the boss order me to make sample app to persuade customer to sell the app.

So, There is some cases to play app without Internet.

In this case, I bring out image or music resource from drawable or assets folder.

 1. How to get drawable's resourceID from drawable

val imgResourceId = context.resources.getIdentifier("album" + song.image.substringBefore("."), "drawable", context.packageName)

"album" + song.image.substringBefore(".") : drawable name except file extension.

"drawable" : resource type

context.packageName : package name

2. How to make drawable's Uri in Android

val imageUri = Uri.Builder().scheme(ContentResolver.SCHEME_ANDROID_RESOURCE)
    .authority(context.resources.getResourcePackageName(imgResourceId))
    .appendPath(context.resources.getResourceTypeName(imgResourceId))
    .appendPath(context.resources.getResourceEntryName(imgResourceId))
    .build()

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