Log every button press / interaction in an iOS App

Question

Is there a way to catch all sorts of user interactions, but first and foremost button presses in an iOS app? I\'m interested in logging these events with a time stamp and ideall

Answer 1

You can subclass UIApplication:

• Create an UIApplication Subclass
• override the -(BOOL)sendAction:(SEL)action to:(id)target from:(id)sender forEvent:(UIEvent *)event method, remember to call the super implementation
• put an NSLog or other diagnostic code inside the implementation

Example, this will print a log every time an UIButton is pressed:

-(BOOL)sendAction:(SEL)action to:(id)target from:(id)sender forEvent:(UIEvent *)event
{
    if ([sender isKindOfClass:[UIButton class]])
    {
        NSLog(@"Action: %@ - %@ - %@", NSStringFromSelector(action), target, sender);
    }

    return [super sendAction:action to:target from:sender forEvent:event];
}


2013-07-08 14:46:18.270 UIApplicationSubclass[94764:c07] Action: anAction: -  - >
2013-07-08 14:46:27.378 UIApplicationSubclass[94764:c07] Action: anAction: -  - >

Moreover, to subclass UIApplication, you must change the main.m file like this (In my case the UIApplication subclass was named FLApplication, look at the third parameter of the UIApplicationMain function and the import of FLApplication.h)

#import "AppDelegate.h"
#import "FLApplication.h"

int main(int argc, char *argv[])
{
    @autoreleasepool {
        return UIApplicationMain(argc, argv, NSStringFromClass([FLApplication class]), NSStringFromClass([AppDelegate class]));
    }
}