Android – Close/hide the Android Soft Keyboard with Kotlin

androidandroid-softkeyboardkotlin

I'm trying to write a simple Android app in Kotlin. I have an EditText and a Button in my layout. After writing in the edit field and clicking on the Button, I want to hide the virtual keyboard.

There is a popular question Close/hide the Android Soft Keyboard about doing it in Java, but as far as I understand, there should be an alternative version for Kotlin. How should I do it?

Best Solution

Use the following utility functions within your Activities, Fragments to hide the soft keyboard.

(*)Update for the latest Kotlin version

fun Fragment.hideKeyboard() {
    view?.let { activity?.hideKeyboard(it) }
}

fun Activity.hideKeyboard() {
    hideKeyboard(currentFocus ?: View(this))
}

fun Context.hideKeyboard(view: View) {
    val inputMethodManager = getSystemService(Activity.INPUT_METHOD_SERVICE) as InputMethodManager
    inputMethodManager.hideSoftInputFromWindow(view.windowToken, 0)
}

This will close the keyboard regardless of your code either in dialog fragment and/or activity etc.

Usage in Activity/Fragment:

hideKeyboard()