is it possible to give an action for TextFiled?

Assuming the storyboard contains a modal segue with identifier ShowAnotherView from the first view controller to the second, this is one way to do it.

In the first view controller, an IBAction on the textfield. You must hook event TouchDown not TouchUpInside, or the default keyboard handing will interfere.

- (IBAction)theTextField_TouchDown:(id)sender {

[selfperformSegueWithIdentifier:@"ShowAnotherView"sender:self];

}

In the second view controller, some way to close the second view controller and return to the first.

- (IBAction)closeButton_TouchUpInside:(id)sender {

[selfdismissViewControllerAnimated:YEScompletion:nil];

}

AFAIK a segue can only be used in the context of a storyboard. After all, the underlying class name is UIStoryboardSegue.

If your view controller is in a NIB rather than storyboard, handle the textfield's Touch Down event by programmatically instantiating and presenting it.

- (IBAction)theTextField_TouchDown:(id)sender {

AnotherViewController *anotherViewController = [[AnotherViewControlleralloc] initWithNibName:@"AnotherViewController"bundle:nil];

[selfpresentViewController:anotherViewController animated:YEScompletion:nil];

}