android typeface needcache

open class TextView(context: Context, array: AttributeSet?) : TextViewMedium(context, array) {
    companion object {
       private val typefaceMap = mutableMapOf<String, Typeface>()

        fun getTypeface(context: Context, typefaceName: String): Typeface {
            return if (typefaceMap.containsKey(typefaceName)) {
                typefaceMap[typefaceName]?: Typeface.DEFAULT
            } else {
                val typeFace = Typeface.createFromAsset(context.applicationContext.assets, typefaceName)
                typefaceMap[typefaceName] = typeFace
                typeFace
            }
        }
    }
}

open class TextViewMedium(context: Context, array: AttributeSet?) :
    androidx.appcompat.widget.AppCompatTextView(context, array) {

    init {
        typeface = TextView.getTypeface(context, "Roboto-Medium.ttf")
    }
}