创建和过渡视图而无需快速使用情节提要

Question

I am trying to create a new UIViewController class in a new file and transition to that UIViewController from the default ViewController . In Objective-C I would create a new file along with it's corresponding xib file then import that file into my main ViewController.m and use the view's presentViewController method to transition to the new view.

Example: from main ViewController.m

SecondViewController* secondView = [[SecondViewController alloc] initWithNibName:@"SecondViewControllerXib" bundle:nil];
[self presentViewController:secondView animated:YES completion:nil];
secondView = nil;

Then return to main ViewController.m using

[self dismissViewControllerAnimated:YES completion:nil];

I have search around but all the examples I've come across are all using Storyboard which I prefer not to use. How can I achieve this without the using Storyboard in swift?

Answer 1

There's nothing different in terms of using Storyboards and .XIB files or doing all UIKit in pure code. Swift and Obj-C have access to the same IDE tools in this regard so you might be looking for a problem that isn't there.

Seems like you're just asking how to write Swift syntax based on existing Obj-C code. "Programmatic View Controller Examples with Swift" ought to be googlable with a little more effort, but to your code:

import UIKit

class SecondViewController: UIViewController {
}

class FirstViewController: UIViewController {
    func foo() {
        let secondView = SecondViewController(nibName: "SecondViewControllerXib", bundle: nil)
        presentViewController(secondView, animated: true, completion: nil)
    }
    func bar() {
        dismissViewControllerAnimated(true, completion: nil)
    }
}