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class FontAwareTextAppearanceSpan(
private val context: Context,
appearance: Int
) : TextAppearanceSpan(context, appearance) {
override fun updateMeasureState(ds: TextPaint) {
super.updateMeasureState(ds)
val font = getFont() ?: Typeface.DEFAULT
val oldStyle = ds.typeface?.style ?: 0
ds.typeface = Typeface.create(font, oldStyle)
}
private fun getFont(): Typeface? {
val cleanFamilyName = family.removePrefix("res/font/").removeSuffix(".xml")
val appPackageName = context.applicationContext.packageName
val id = context.resources.getIdentifier(cleanFamilyName, "font", appPackageName)
return ResourcesCompat.getFont(context, id)
}
}
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