Theme_1_setup

MainActivity.kt

    private fun setTheme(theme: Theme) {
        if (imageView.isVisible) {
            return
        }

        val w = container.measuredWidth
        val h = container.measuredHeight

        val bitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888)
        val canvas = Canvas(bitmap)
        container.draw(canvas)

        imageView.setImageBitmap(bitmap)
        imageView.isVisible = true

        val finalRadius = hypot(w.toFloat(), h.toFloat())

        TODO("Change theme over all views")

        val anim = ViewAnimationUtils.createCircularReveal(container, w / 2, h / 2, 0f, finalRadius)
        anim.duration = 400L
        anim.doOnEnd {
            imageView.setImageDrawable(null)
            imageView.isVisible = false
        }
        anim.start()
    }
}