Sample of Canvas extension function from Android KTX

CanvasExt.kt

/**
 * Wrap the specified [block] in calls to [Canvas.save]/[Canvas.translate]
 * and [Canvas.restoreToCount].
 */
inline fun Canvas.withTranslation(
    x: Float = 0.0f,
    y: Float = 0.0f,
    block: Canvas.() -> Unit
) {
    val checkpoint = save()
    translate(x, y)
    try {
        block()
    } finally {
        restoreToCount(checkpoint)
    }
}