WindowInsets IME extensions

insets.kt

val View.windowInsetsCompat: WindowInsetsCompat?
    get() {
        val rootInsets = rootWindowInsets ?: return null
        return WindowInsetsCompat.toWindowInsetsCompat(rootInsets)
    }

val View.isKeyboardVisible: Boolean
    get() = windowInsetsCompat?.isVisible(WindowInsetsCompat.Type.ime()) ?: false

fun View.hideKeyboard() {
    ViewCompat.getWindowInsetsController(this)?.hide(WindowInsetsCompat.Type.ime())
}

fun View.showKeyboard() {
    ViewCompat.getWindowInsetsController(this)?.show(WindowInsetsCompat.Type.ime())
}

fun View.doOnImeVisibilityChanged(
    onShown: () -> Unit = {},
    onDismissed: () -> Unit = {}
) {
    doOnLayout {
        // get init state of keyboard
        var keyboardVisible = isKeyboardVisible

        // whenever the layout resizes/changes, callback with the state of the keyboard.
        viewTreeObserver.addOnGlobalLayoutListener {
            val keyboardUpdateCheck = isKeyboardVisible
            // since the observer is hit quite often, only callback when there is a change.
            if (keyboardUpdateCheck != keyboardVisible) {
                if (keyboardUpdateCheck) {
                    onShown()
                } else {
                    onDismissed()
                }
                keyboardVisible = keyboardUpdateCheck
            }
        }
    }
}