UIAlertView Popping Up A Bunch Of Times In The if(CGRectIntersectsRect) Code ?

[AppStoreMod]

Hey guys when I am using the. if CGRectIntersectsRect(image5.frame,image2.frame)) in my Xcode project. I have an UIAlertView right in the code. At times my app will start making the alert pop up over and over again and sometimes it works. Its when two images touch its suppose to have this code come up. I have it formatted like this. I also have a -(void)checkCollision in there. See any errors please help me. Here you go:

-(void)checkCollision {



if( CGRectIntersectsRect(image1.frame,image2.frame))
{
[myTwitter setHidden:NO];

CGRect frame = [image1 frame];
frame.origin.x = 135.0f;
frame.origin.y = 35.0f;
[image1 setFrame:frame];

CGRect frame3 = [image3 frame];
frame3.origin.x = 135.0f;
frame3.origin.y = 35.0f;
[image1 setFrame:frame3];

CGRect frame4 = [image4 frame];
frame4.origin.x = 135.0f;
frame4.origin.y = 35.0f;
[image1 setFrame:frame4];

CGRect frame2 = [image2 frame];
frame2.origin.x = 138.0f;
frame2.origin.y = 343.0f;
[image2 setFrame:frame2];

pos = CGPointMake(0.0,0.0);
pos2 = CGPointMake(0.0,0.0);
pos3 = CGPointMake(0.0,0.0);
pos4 = CGPointMake(0.0,0.0);

[image1 setHidden:YES];
[image4 setHidden:YES];
[image5 setHidden:YES];
[backLabel setHidden:NO];


UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"You Lose" message:[NSString stringWithFormat:@"The Nail hit you and you popped. You were alive for %d seconds. Keep playing and see if you can beat that!", mainInt] delegate:nil cancelButtonTitle:@"Dismiss" otherButtonTitles:nil];
[alertView show];
[alertView release];
[randomMain invalidate];
randomMain = nil;

UIImage *img = [UIImage imageWithContentsOfFile: [[NSBundle mainBundle] pathForResource:@"BaloonPopped1" ofType:@"png"]];
[image2 setImage:img];

CFBundleRef mainBundle = CFBundleGetMainBundle();
CFURLRef soundFileURLRef;
soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"Popped", CFSTR("mp3"), NULL);
if (soundFileURLRef) {
}
UInt32 soundID;
AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
AudioServicesPlaySystemSound(soundID);

}

if( CGRectIntersectsRect(image1.frame,image3.frame))
{

CGRect frame = [image1 frame];
frame.origin.x = 1 + arc4random() % 300;
frame.origin.y = -20.0f;
[image1 setFrame:frame];


}

[davidlansalot]

How often is your check collision method being called? If you have a timer that checks it every second or so, the object colliding with the other object could still be intersecting, therefore, the method gets called multiple times

[AppStoreMod]

Originally Posted by davidlansalot

How often is your check collision method being called? If you have a timer that checks it every second or so, the object colliding with the other object could still be intersecting, therefore, the method gets called multiple times

every 0.05 seconds it calls the method to move the nails, and everytime the nail method is called so is the collision check

[Bertrand21]

Originally Posted by AppStoreMod

every 0.05 seconds it calls the method to move the nails, and everytime the nail method is called so is the collision check

Invalidate your nstimer when you detect the collision so it won't call anymore