RoomDatabaseUtill.kt

import androidx.room.TypeConverter
import com.google.gson.Gson
import com.google.gson.reflect.TypeToken
import com.wondersoftware.mastapp.business.datasource.cache.theme.ThemeEntity
import java.lang.reflect.Type
import java.util.*


class DataTypeConverter {
    private val gson = Gson()
    @TypeConverter
    fun stringToList(data: String?): List<ThemeEntity> {
        if (data == null) {
            return Collections.emptyList()
        }
        val listType: Type = object : TypeToken<List<ThemeEntity?>?>() {}.type
        return gson.fromJson<List<ThemeEntity>>(data, listType)
    }

    @TypeConverter
    fun ListToString(someObjects: List<ThemeEntity?>?): String {
        return gson.toJson(someObjects)
    }
}