UIPinchGestureRecognizer zooming all views - objective-c

Question

In my project I have a UIImageVIew where the user imports a backgroudn and then puts smaller pictures on that background.
I want to apply the gestures only to the smaller pictures that are being tapped. The gestures I am using are tap, long press, pand and pinch gestures. My problem is only with pinch gestures. I can apply long press, tap and pan individually BUT with pinch, not only the smaller pictures zoom but also the background. Any idea of how can I fix this?
in my - (void)viewDidLoad I have set:
//single tap
UITapGestureRecognizer *tapg =
[[UITapGestureRecognizer alloc] initWithTarget:self
action:#selector(tapAction:)];
[self.itemView addGestureRecognizer:tapg];
// double tap
UITapGestureRecognizer *doubleTap =
[[UITapGestureRecognizer alloc] initWithTarget:self
action:#selector(doubleTapAction:)];
doubleTap.numberOfTapsRequired = 2;
[self.itemView addGestureRecognizer:doubleTap];
// longPress
UILongPressGestureRecognizer *longPress =
[[UILongPressGestureRecognizer alloc] initWithTarget:self
action:#selector(longPressAction:)];
[self.itemView addGestureRecognizer:longPress];
// pan
UIPanGestureRecognizer *pan =
[[UIPanGestureRecognizer alloc] initWithTarget:self
action:#selector(panAction:)];
[self.itemView addGestureRecognizer:pan];
//pinch
UIPinchGestureRecognizer *pinch = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:#selector(pinchAction:)];
[self.itemView addGestureRecognizer:pinch];
then,
// tap
- (void)tapAction:(UITapGestureRecognizer *) sender{
CGPoint tapPoint = [sender locationInView:self.itemView];
NSLog(#">>>tap x=%.2f, y=%.2f", tapPoint.x, tapPoint.y);
int i =0;
isTaped = NO;
for (i = 0; i < ivMax; i++) {
if (CGRectContainsPoint((*(iViews+i)).frame, tapPoint)) {
isTaped = YES;
iViewsTapidx = i;
NSLog(#"i = %d", i);
break;
}
}
}
// doubleTap
- (void)doubleTapAction:(UITapGestureRecognizer *) sender{
NSLog(#">>>doubleTap");
CGPoint tapPoint = [sender locationInView:self.itemView];
isTaped = NO;
isDblTaped = NO;
int i =0;
for (i = 0; i < ivMax; i++) {
if (CGRectContainsPoint((*(iViews+i)).frame, tapPoint)) {
isDblTaped = YES;
iViewsDblTapidx = i;
break;
}
}
// view
if (isDblTaped) {
NSLog(#"remove %d", i);
(*(iViews+i)).tag = 0;
[*(iViews+i) removeFromSuperview];
}
}
// longPress
- (void)longPressAction:(UILongPressGestureRecognizer *) sender{
if ([sender state] == UIGestureRecognizerStateBegan) {
NSLog(#">>>longPress 1");
}else if ([sender state] == UIGestureRecognizerStateEnded) {
// NSLog(#">>>longPress 2");
CGPoint tapPoint = [sender locationInView:self.itemView];
NSLog(#">>>longPress 2 x=%.2f, y=%.2f", tapPoint.x, tapPoint.y);
int i =0;
for (i = 0; i < ivMax; i++) {
NSLog(#"i = %d", i);
if ((*(iViews+i)).tag == 0) {
break;
}
}
if (i < ivMax) {
//set smaller picture
UIImage *stampImage;
NSString *imagepath = [NSString stringWithFormat:#"%#%#",[FileUtility getPDFImageFolderPath], self.menu.imageID];
if (self.menu.imageID == nil || [self.menu.imageID isEqualToString:#""]) {
stampImage = [UIImage imageNamed:#"NotExistFile.jpg"];
} else {
stampImage = [UIImage imageWithContentsOfFile:imagepath];
}
int parcent = stampImage.size.width / _width;
//show smaller picture
*(iViews+i) = [[UIImageView alloc] initWithImage:stampImage];
(*(iViews+i)).frame = CGRectMake(tapPoint.x - stampImage.size.width/parcent/2,
tapPoint.y - stampImage.size.height/parcent/2,
stampImage.size.width/parcent,
stampImage.size.height/parcent);
(*(iViews+i)).tag = i+1;
[self.itemView addSubview:*(iViews+i)];
iViewsTapidx = i;
isTaped = YES;
}
}
}
// Pan
- (void)panAction:(UIPanGestureRecognizer *) sender{
NSLog(#">>>pan");
if (isTaped) {
CGPoint p = [sender translationInView:self.itemView];
CGPoint movePoint = CGPointMake((*(iViews+iViewsTapidx)).center.x + p.x,
(*(iViews+iViewsTapidx)).center.y + p.y);
(*(iViews+iViewsTapidx)).center = movePoint;
// NSLog(#">>>pan x=%.2f, y=%.2f --> x=%.2f, y=%.2f", p.x, p.y, movePoint.x, movePoint.y);
NSLog(#">>>pan x=%.2f, y=%.2f", p.x, p.y);
[sender setTranslation:CGPointZero inView:self.itemView];
}
}
// scale the piece by the current scale
// reset the gesture recognizer's rotation to 0 after applying so the next callback is a delta from the current scale
- (void)pinchAction:(UIPinchGestureRecognizer *)sender
{
if ([sender state] == UIGestureRecognizerStateBegan || [sender state] == UIGestureRecognizerStateChanged) {
[sender view].transform = CGAffineTransformScale([[sender view] transform], [sender scale], [sender scale]);
[sender setScale:1];
}
}

Answer 1

give your image name insted of
[self.itemView addGesture.....