UIPinchGestureRecognizer zoom sur toutes les vues

Question

Dans mon projet, j'ai un UIImageVIew où l'utilisateur importe un backgroudn et met ensuite des images plus petites sur ce fond.

Je souhaite appliquer les gestes uniquement aux images plus petites qui sont en cours de prise. Les gestes que j'utilise sont le tap, la pression longue, les gestes de pincement et de pincement. Mon problème est seulement avec des gestes de pincement. Je peux appliquer une pression longue, tapoter et casser individuellement MAIS avec une pincée, non seulement les petites images zoom mais aussi l'arrière-plan. Une idée de comment puis-je résoudre ce problème?

dans mon - (void) viewDidLoad J'ai mis:

//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]; 

puis,

// 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

donner votre nom d'image insted de

[self.itemView addGesture.....