extension Function show and hide keyboard on view

showKeyboard.kt

fun View.showKeyboard(isShow: Boolean) {
    val imm = context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
    if (isShow) {
        if (requestFocus()) imm.showSoftInput(this, 0)
    } else {
        imm.hideSoftInputFromWindow(windowToken, 0)
    }
}