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..,
Thank You..,
