How to jump controller through debugging

Question

Yes we all know navigationController?.pushViewController(vc, animated: true) used for pushing controller. I want to ask is there any way that we can jump to ViewController on debugging?

For ex. -

func jump() {
   let vc = ViewController(nibName: "ViewController",bundle: nil)//here breakpoint set
   //navigationController?.pushViewController(vc, animated: true)
}

can we uncomment pushViewController dynamically (using debugging or any technique.)?

Why not set a breakpoint in the pushed view controller, like in viewDidLoad? Is there something about the push you need to debug? — Joakim Danielson, Jul 09 '18 at 11:50

score 1 · Accepted Answer · answered Jul 09 '18 at 11:59

1

yes you can use,

place a breakpoint at let vc = ViewController(nibName: "ViewController",bundle: nil)//here breakpoint set
click the "Next" button for debug and in debug window paste this line using po command and press enter. po navigationController?.pushViewController(vc, animated: true)

and now press the play button of debugging..it will execute your code.

answered Jul 09 '18 at 11:59

MAhipal Singh

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Doesn't know that even exist. :) – Ramesh Jul 09 '18 at 12:48

score 0 · Answer 2 · answered Jul 09 '18 at 11:50

For the second part of your question: You can use compilation conditions to only execute the command in certain targets. Like in the MyApp-Debug you would do it but in MyApp-Release the code woulnd't be executed.

#if DEBUG
    navigationController?.pushViewController(vc, animated: true)
#endif

Refer to this thread for more detailed information: Swift: how to use PREPROCESSOR Flags (like `#if DEBUG`) to implement API keys?

How to jump controller through debugging

2 Answers2