Touchesbegan not detecting what is being touched

Question

I\'m building a rotating banner using a NSTimer to keep track of the current image with the image being animated from 5 different images. I have a touchesBegan set up to kee

Answer 1

First of all you have to set userInteractionEnabled to YES in your viewDidLoad method like below:

[myImageView setUserInteractionEnabled:YES];

Note that for the myImageView, checking User Interaction Enabled via Identity Inspector didn't work for me.

Then change

UITouch *touch = [[event allTouches] anyObject];

to

UITouch *touch = [touches anyObject];

so that the touchesBegan method looks like below:

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    UITouch *touch = [touches anyObject];
    if ([touch view] == myImageView) {
       // place any code here when myImageView is touched
    }
 }

Answer 2

Not sure what would cause that but have you tried using a UIGestureRecognizer? Try something like the code below and see if the method gets called.

  //Add Gesture Recognizer
  UITapGestureRecognizer *tapped = [[UITapGestureRecognizer alloc] initWithTarget:self    action:@selector(imageSelected)];
  tapped.numberOfTapsRequired = 1;
  [theImageView addGestureRecognizer:tapped];

  //Memory Cleanup
  [tapped release];

 -(void)imageSelected
  {
    NSLog(@"Selected an Image");
  }