Kotlin Annotation IntDef

Question

I have this code sample:

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


        

Answer 1

My preferred way to use IntDef with Kotlin is to use top-level declarations:

package com.example.tips


const val TIP_A = 1
const val TIP_B = 2
const val TIP_C = 3

@IntDef(TIP_A, TIP_B, TIP_C)
@Retention(AnnotationRetention.SOURCE)
annotation class TipId


class TipsDataProvider {

    fun markTip(@TipId tipId: Int) {
    ...
    }
}

No extra class or object required! More info about top-level declarations here.