CODEWITHSUNDEEP
iosobjective-c
Vadim Denisuk
Vadim Denisuk

Reputation: 446

Hook any event and calculate time execution

I have few buttons on screen. I need to calculate execution time when any ui element is pressed, but without adding that to every button. I have function that catches only View Controller touching.

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{

    NSString * strLoad = @"";
    for (int i = 1; i <=100000; i++) {
        strLoad = [strLoad stringByAppendingString:@"add"];
    }
    NSLog(@"touchesBegan");       
    NSTimeInterval delta = ([[NSProcessInfo processInfo] systemUptime] - [(UIEvent*)event timestamp]);
    NSLog(@"time %.2f", delta);
}
- (void)viewDidLoad {
    [super viewDidLoad];
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
}
- (IBAction)btnMetadata:(id)sender {
    NSString * strLoad = @"aBC";
    for (int i = 1; i <=500; i++) {
        strLoad = [strLoad stringByAppendingString:@"add"];
    }
}
- (IBAction)btnGenerateCrash:(id)sender {
    NSString * strLoad = @"aBC";
    for (int i = 1; i <=5000; i++) {
        strLoad = [strLoad stringByAppendingString:@"add"];
    }
}

Upvotes: 2

Views: 121

Answers (1)

Taras Kovalenko
Taras Kovalenko

Reputation: 2393

Hi you need work with like this hacker's method:

http://cocoawithlove.com/2008/10/synthesizing-touch-event-on-iphone.html

and some like this:

https://github.com/kennytm/iphone-private-frameworks

It is not very simple but it is possible. Good luck!

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Simulate touch on iphone

How to send a touch event to iPhone OS?

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