Objective-C: Trigger method with computer keyboard stroke

Question

Sorry if the questions is asked/answered already, or if my title is poorly worded.

I am currently writing an iPhone app, and have considered a useful tool for debugging. I would like to write a method that just prints variables and other info that I want. That part is simple and all, but I want this to be called by keystroke.

For now I have been just adding NSLog()'s to viewDidLoad or to other button methods to check if my variables are being set properly, but it's becoming tedious and the code is long so I tend to forget about some and spend a lot of time looking for them haha.

I just want one method that I can go to to write my NSLog()'s, and have that method call whenever I hit 'space' or something of that sort.

Can this be done? Thanks! -SF

Answer 1

It's pretty hard to do, you need to have a hidden text field that you keep in focus, hide the software keyboard for it, then listen on its delegate methods for changing text.

An alternative would trigger the code inside applicationWillResignActive: which gets called on application hiding, notification center showing, or double home press.