How to make buttons that go to a different screen?

Question

Hey I'm having a lot of trouble with this idea I have. How do I make buttons that go to a different screen but on the CODE?

Basically depending on a value that may or may not be different for every user (Let's say the value is in x already) it will make a list of buttons...

When you click the list of buttons, they each individually go to a different screen.

How do I do this? I know how to on storyboard.. but code wise?

Edit: I SHOULD note that for the buttons specifically I have this and it is working in the code (didn't use storyboard):

        UIButton * btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
        btn.frame = CGRectMake(50, 200, 200, 50);
        [btn setTitle:@"Button 1" forState:UIControlStateNormal];
        [self.view addSubview:btn];

Do not put tags in the title and use proper tags for your question. This is Objective-C code, not C code. And the "new" tag clearly states not to use it. — rmaddy, Mar 25 '14 at 22:56
yeah i know this is objective c code and not c, but stackoverflow told me i couldn't use the word objective. ah well. — user3159537, Mar 26 '14 at 00:01
your question is you have a list of buttons and on clicking those buttons depending on button clicked it hold go to respective screen? — Charan Giri, Mar 26 '14 at 03:24
Based on what a value is (can be 4000 different values - depending on what user inputs) <-- i already have the code so the value is a variable. It will create a list of buttons and upon clicking those buttons they each will link to their respective screen. — user3159537, Mar 26 '14 at 07:12

score 0 · Answer 1 · answered Mar 25 '14 at 22:54

First add a target to your button:

  //Add target to your button, to call a method that presents the next ViewController:
    UIButton *yourButton = [[UIButton alloc]init];
    [yourButton addTarget:self action:@selector(goToNextPageMethod) forControlEvents:UIControlEventTouchUpInside];

User one of the two, case you are using a UINavigation controller or not, place them in the method you are calling when the button is pressed (the target)

    //Normal presentation
    YourViewController *vc = [[YourViewController alloc]init];
    [self presentViewController:vc animated:YES completion:nil];
    //Navgiation bar
    YourViewController *vc = [[YourViewController alloc]init];
    [self.navigationController pushViewController:vc animated:YES];

Hope this helps

MikeT · Answer 2 · 2014-03-25T23:47:51.337

0

You can attach an action to your button by doing the following:

UIButton * btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
btn.frame = CGRectMake(50, 200, 200, 50);
[btn setTitle:@"Button 1" forState:UIControlStateNormal];
[btn addTarget:self action:@selector(someAction) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:btn];

and then in your someAction method, you push the view modally or via your navigation controller

- (void)someAction
{
    //init your view controller here....
    YourViewController *vc = [[YourViewController alloc]init];
    [self.navigationController pushViewController:vc animated:YES];
}

edited Mar 25 '14 at 23:47

answered Mar 25 '14 at 22:54

MikeT

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But how do I put in the someAction method to go to a new screen? and how do I decide what goes there in the code (Not using storyboard) ? – user3159537 Mar 25 '14 at 23:40
in the someAction method you basically init a new viewcontroller which is the "screen" you want to show (see @PiratM 's answer on how to do this). And then you push that new viewcontroller. Edited my answer to include the someAction method - hope that helps. – MikeT Mar 25 '14 at 23:45
It does actually. Thank you a lot. I know you're going to think this is a really dumb question but it would help me a lot. What's the difference between a - and a + before the (void)? In the default code they use +... and also the compiler is stating someAction is undeclared.. how do I declare it? Thank you so much! – user3159537 Mar 25 '14 at 23:56
glad that it helps! the + is a class method and - is an instance method. I think this post answers it very well. http://stackoverflow.com/questions/1053592/what-is-the-difference-between-class-and-instance-methods – MikeT Mar 25 '14 at 23:59
The above code seems to be fine for me. Make sure the selector is not someAction: and it is someAction – MikeT Mar 26 '14 at 00:05
Thanks Mike, but I still am receiving the error of use of undeclared identifer ???? The selector being undeclared is actually something common in iOS and I just disabled it but for the void well thats what it's saying.. its undeclared. – user3159537 Mar 26 '14 at 00:49

How to make buttons that go to a different screen?

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