What is best TypeConverter for Uri?

Question

What is the best method of converting android.net.Uri that it can be used with RoomDatabase?

Answer 1

The best way to store and retrieve Uri with Room is to persist it in the form of String. Moreover we already have the APIs to convert Uri to String and vice versa.

There are 2 ways:

1. You'll handle the conversion of Uri to String and then storing it and same for fetching.
2. Let Room do that for you using a TypeConverter.

It's completely your choice and the app requirements to choose the way. That said, here is the TypeConverter for Uri <-> String:

class UriConverters {
    @TypeConverter
    fun fromString(value: String?): Uri? {
        return if (value == null) null else Uri.parse(value)
    }

    @TypeConverter
    fun toString(uri: Uri?): String? {
        return uri?.toString()
    }
}