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POMy touchesBegan wont trigger
 

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    <p>Hi I have a problem I haven't been able to figure for a couple of days. I have a touchesBegan method that I want to use to tell when someone is tapping a UIImageView so it can move a different UIImageView up and down with NSTimers. For some reason my TouchesBegan wont work, i know that this is the issue because I tested with NSLogs and the results point to the method not being called. Here is my code, THANKS P.S. if there is a super quick fix and it makes me look dumb i'm sorry i've only developed for 6 days now.</p> <pre><code>-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { CGPoint pt = [[touches anyObject] locationInView:self.view]; if (CGRectContainsPoint(flyImageButton.frame, pt)) { flying = YES; [playerFall invalidate]; playerFlyUp = [NSTimer scheduledTimerWithTimeInterval:.03 target:self selector:@selector(flyUp) userInfo:nil repeats:YES]; [[NSRunLoop mainRunLoop] addTimer:playerFlyUp forMode:NSRunLoopCommonModes]; } } -(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { if (flying == YES) { flying = NO; [playerFlyUp invalidate]; [self startFallTimer]; } } </code></pre> <p>Here is my .h file for the person who asked...</p> <pre><code>#import &lt;UIKit/UIKit.h&gt; @interface GameViewController : UIViewController { IBOutlet UILabel *scoreLabel, *coinsLabel; IBOutlet UIImageView *flyImageButton, *playerImage, *flyingObject; IBOutlet UIScrollView *scroll; int score; int coins; BOOL flying; NSTimer *playerFlyUp, *playerFall, *scoreTimer, *coinsTimer; } @end </code></pre> <p>I Have also tried UITouch like so...</p> <pre><code>-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { //CGPoint pt = [[touches anyObject] locationInView:self.view]; UITouch *touch = [[event allTouches]anyObject]; //if (CGRectContainsPoint(flyImageButton.frame, pt)) { if ([touch view] == flyImageButton) { flying = YES; [playerFall invalidate]; playerFlyUp = [NSTimer scheduledTimerWithTimeInterval:.03 target:self selector:@selector(flyUp) userInfo:nil repeats:YES]; [[NSRunLoop mainRunLoop] addTimer:playerFlyUp forMode:NSRunLoopCommonModes]; } } </code></pre> <p>What is really confusing to me is how NSLog "Pos 1" never triggers, no matter where I touch...</p> <pre><code>-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { //CGPoint pt = [[touches anyObject] locationInView:self.view]; UITouch *touch = [[event allTouches]anyObject]; CGPoint loc = [touch locationInView:self.view]; //This NSLog never displays leading me to think that my CGPoint isn't the issue... NSLog(@"Pos 1"); if (CGRectContainsPoint(flyImageButton.frame, loc)) { //if ([touch view] == flyImageButton) { NSLog(@"Pos 2"); flying = YES; [playerFall invalidate]; playerFlyUp = [NSTimer scheduledTimerWithTimeInterval:.03 target:self selector:@selector(flyUp) userInfo:nil repeats:YES]; [[NSRunLoop mainRunLoop] addTimer:playerFlyUp forMode:NSRunLoopCommonModes]; } } </code></pre>
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    1. COCan we look at your .h file please
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    2. COAre you sure that you don't have something eating your touches (e.g. button on top of your view)? Also, you should override all 4 touch methods as per apple guidelines if you plan to perform custom touch handling.
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    3. COWould a UIScrollView interfere with it? i have a button that triggers the touchesBegan, but it is supposed to execute something on the scrollview
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