gistfile1.txt

fun AppCompatActivity.navigate(frag: Fragment) {
    val fragmentTransaction = supportFragmentManager.beginTransaction()
    fragmentTransaction.replace(content.id, frag);
    fragmentTransaction.commit();
}
 
fun Fragment.userError(msg: String?) {
    Snackbar.make(view, msg, Snackbar.LENGTH_LONG).show()
}
 
fun SharedPreferences.edit(func:SharedPreferences.Editor.(): Unit) {
    val editor = edit()
    editor.func()
    editor.apply()
}
 
fun SharedPreferences.Editor.set(pair: Pair<String, String>)  = putString(pair.first, pair.second)