Android dismiss keyboard

Question

How do I dismiss the keyboard when a button is pressed?

Answer 1

This Solution make sure that it hides keyboard also do nothing if it not opened. It uses extension so it can be used from any Context Owner class.

fun Context.dismissKeyboard() {
    val imm by lazy { this.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager }
    val windowHeightMethod = InputMethodManager::class.java.getMethod("getInputMethodWindowVisibleHeight")
    val height = windowHeightMethod.invoke(imm) as Int
    if (height > 0) {
        imm.toggleSoftInput(InputMethodManager.HIDE_IMPLICIT_ONLY, 0)
    }
}