Room TypeConverter for compose Color class

user_13527431 0
Viewed 36

I'm trying to create TypeConverter for Color(androidx.compose.ui.graphics) class but room fails at coompile time with error

error: Class is referenced as a converter but it does not have any converter methods.
public final class ColorConverter {
            ^

Color class (in compose)

value class Color(val value: ULong) {
...
}

ColorConverter implementation

object ColorConverter {
    @JvmStatic
    @TypeConverter
    fun toLong(color: Color): Long = color.value.toLong()

    @JvmStatic
    @TypeConverter
    fun toColor(value: Long): Color = Color(value)
}

I've declared in DB as well

@TypeConverters(ColorConverter::class)
android-room android-jetpack-compose kotlin
1 Answers
class ColorConverter {
    @TypeConverter
    fun toLong(color: Color): Long = color.value.toLong()

    @TypeConverter
    fun toColor(value: Long): Color = Color(value)
}

Instead of making ColorConverter as object, make it as a normal class and remove @Jvmstatic annotation from method. I think it will solve the issue.

user_92480980
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