View.kt

package net.nuvem.mobile.todolar.extensions

import android.app.Activity
import android.content.Context
import android.view.View
import android.view.inputmethod.InputMethodManager
import android.widget.EditText

fun View.showKeyboard(editText: EditText) {
    val inputMethodManager = context.getSystemService(Activity.INPUT_METHOD_SERVICE) as InputMethodManager
    editText.requestFocus()
    inputMethodManager.showSoftInput(editText, InputMethodManager.SHOW_IMPLICIT)
}

fun View.hideKeyboard(): Boolean {
    try {
        val inputMethodManager = context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
        return inputMethodManager.hideSoftInputFromWindow(windowToken, 0)
    } catch (ignored: RuntimeException) { }
    return false
}

fun View.visible() : View {
    if (visibility != View.VISIBLE) {
        visibility = View.VISIBLE
    }
    return this
}

fun View.invisible() : View {
    if (visibility != View.INVISIBLE) {
        visibility = View.INVISIBLE
    }
    return this
}

fun View.gone() : View {
    if (visibility != View.GONE) {
        visibility = View.GONE
    }
    return this
}