Call a function in AppDelegate?

Question

Following the solution (the highest-voted answer actually) at UITextField Example in Cocos2d, I managed to do it except the line

[[[UIApplication sharedAppli         


        

Answer 1

You need to import the AppDelegate into the .m file where you use

[[[UIApplication sharedApplication] delegate] specifyStartLevel];

I like to import it with a header that gives me a shortcut.

GlobalData.h

#import "AppDelegate.h"
#define APPDELEGATE (AppDelegate *)[[UIApplication sharedApplication] delegate]

Then when I use it in any class I just

#import "GlobalData.h"

// to gain access to the delegate
AppDelegate * appDelegate = APPDELEGATE;

I use this approach because I can then store more #define's to some global constants (ie soundFXVolume - #define SOUND_FX_V 0.6)