An example of an Extension Function that applies a loaded font to a TextView

setCustomFont.kt

/**
 * Loads a font via the Support Library downloadable font system and applies it to a TextView. If this
 * function fails, it will do so silently.
 *
 * @param customFont A [CustomFont] object that encapsulates the query to be sent to the fonts provider
 */
fun TextView.setCustomFont(customFont: CustomFont) {
    loadFont(context, customFont) {
        this.typeface = it
    }
}