SoftKeyboard or SoftInput Observer

View Extension for SoftKeyboard or SoftInput Observer

fun View.onScreenResize(onResize: (isScreenSmaller: Boolean) -> Unit) {

    this.viewTreeObserver.addOnGlobalLayoutListener {

        val r = Rect()
        this.getWindowVisibleDisplayFrame(r)
        val screenHeight = this.rootView.height
        val keypadHeight = screenHeight - r.bottom
        val ratio = 0.15

        if (keypadHeight > screenHeight * ratio)
            onResize(true)
        else
            onResize(false)
    }

}