Kotlin helper functions for extracting ColorStateLists and Drawables from a TypedArray using AppCompatResources.

TypedArrayUtils.kt

import android.content.Context
import android.content.res.ColorStateList
import android.content.res.TypedArray
import android.graphics.drawable.Drawable
import androidx.annotation.StyleableRes
import androidx.appcompat.content.res.AppCompatResources

/**
 * Utility methods for extracting [ColorStateList]s and [Drawable]s from a [TypedArray].
 * The resources are inflated using [AppCompatResources], which provides bug fixes and backports
 * features introduced on new platforms.
 */
object TypedArrayUtils {

    fun getColorStateList(context: Context, typedArray: TypedArray, @StyleableRes index: Int): ColorStateList? {
        if (typedArray.hasValue(index)) {
            val resourceId = typedArray.getResourceId(index, 0)
            if (resourceId != 0) {
                val value = AppCompatResources.getColorStateList(context, resourceId)
                if (value != null) {
                    return value
                }
            }
        }
        return typedArray.getColorStateList(index)
    }

    fun getDrawable(context: Context, typedArray: TypedArray, @StyleableRes index: Int): Drawable? {
        if (typedArray.hasValue(index)) {
            val resourceId = typedArray.getResourceId(index, 0)
            if (resourceId != 0) {
                val value = AppCompatResources.getDrawable(context, resourceId)
                if (value != null) {
                    return value
                }
            }
        }
        return typedArray.getDrawable(index)
    }
}

What's the point off fallback to normal methods if value wasn't found?