First Responder & Keyboard Handling

First Responder & Keyboard Handling

Hi!

In IOS the First Responder has play a small role. But it is very important to handle the applications where keyboard is shown.

// Import basic UIKit Package

import UIKit

// Implement UITextFieldDelegate

class Sample_VC: UIViewController, UITextFieldDelegate 

{

// create UITextfield

@IBOutlet weak var et_un: UITextField!

    

@IBOutlet weak var et_pass: UITextField!

override func viewDidLoad() {

        super.viewDidLoad()

// Should fix delegate for self

et_un.delegate = self

et_pass.delegate = self

// Methods for Navigate UITextfield Up & Down on Main view while Typing 

NSNotificationCenter.defaultCenter().addObserver(self, selector: Selector("keyboardWillShow:"), name:UIKeyboardWillShowNotification, object: nil);

        NSNotificationCenter.defaultCenter().addObserver(self, selector: Selector("keyboardWillHide:"), name:UIKeyboardWillHideNotification, object: nil);

}

    func keyboardWillShow(sender: NSNotification) {

        self.view.frame.origin.y -= 150

    }

    

    func keyboardWillHide(sender: NSNotification) {

        self.view.frame.origin.y += 150

    }

// Implementation Method for UITextField Handl

func textFieldShouldReturn(textField: UITextField) -> Bool {

        if(textField == et_un)

        {

// Move to next UITextField

            et_pass.becomeFirstResponder()

        }

        else if(textField == et_pass)

        {

// Resign the FirstResponder

            et_pass.resignFirstResponder()

        }

        return false

    }

}

Thank You..,