segue

Using iOS 5 storyboards, on a button I am performing a segue, what I want is to do validation on my textfield and if validation is failed I have to stop segue and throw an alert. Whats the way to do it? If your deployment target is iOS 6.0 or later You can simply implement the shouldPerformSegueWithIdentifier:sender: method on your source view controller. Make this method return YES if you want to perform the segue, or NO if you don't. If your deployment target is earlier than iOS 6.0 You will need to change the way your segue is connected in the storyboard and write a little more code. First,

I am using normal storyboarding and push segues in xcode, but I want to have segues that just appear the next view, not slide the next view (as in when you use a tab bar and the next view just appears). Is there a nice simple way to have normal push segues just "appear" and not "slide", without needing to add custom segues? Everything is working completely fine, I just want to remove that slide animation between the views. I was able to do this by creating a custom segue (based on this link ). Create a new segue class (see below). Open your Storyboard and select the segue. Set the class to

This question already has an answer here: prepare(for segue: UIStoryboardSegue, sender: AnyObject?) missing in swift 3.0/Xcode 8 b6 1 answer This question might have been answered already but I could not find it. override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) { } This code worked fine in swift 2 but now gives me an error to remove the override. Exact Error: "Method does not override any method from its superclass" What is the new correct method for swift 3 for this? I can't seem to find any documentation on it anywhere. Method signature is changed in swift 3.0

I have 2 UITextFields , one of them for Login and the another for the Password. Only if the Login is "succesful", I want to perform the Segue with Push to another View Controller . But when I touch the button, directly the View push to the Another View without check the Condition. In StoryBoard I drag from the UIButton to the View Controller I want to push, for creating the segue with push option. Here is my code: - (IBAction)buttonLogin:(id)sender { if (([self.textFieldLogin.text isEqualToString:@"User"]) && ([self.textFieldPassword.text isEqualToString:@"1515"])){ [self

I'm working on an app, and need to pass data between view and containerView. I need to send data and receive data from both Views. Let me explain better: I can change the Label Master (Touch the Container Button) by protocol , but I can not change the Label Container (Touch the Master button). What happens is the Master connects with the container by a following. But do not have a follow Container linking to the Master. I tried to add but segue to, but it worked. The Master View Controller: import UIKit protocol MasterToContainer { func changeLabel(text:String) } class Master: UIViewController