Kotlin Annotation IntDef

Question

I have this code sample:

class MeasureTextView: TextView {
    constructor(context: Context?) : super(context)
    constructor(context: Context?, attrs: Attr         


        

Answer 1

Try it:

companion object {
    const val VALUE_1: Int = 1
    const val VALUE_2: Int = 2
    const val VALUE_3: Int = 3
}

@IntDef(value = [VALUE_1, VALUE_2, VALUE_3])
@Retention(AnnotationRetention.SOURCE)
annotation class TestClassName