CODEWITHSUNDEEP
xnaxnanimation
Manasi
Manasi

Reputation: 13

how to scroll single image in xna 4.0?

I want to scroll single image on touch like in angry birds. can i use any gestures for scroll single image? And without using gestures how to scroll image? Please help me. Thank you.

Upvotes: 0

Views: 131

Answers (1)

jamil
jamil

Reputation: 2437

You can use pinchgesturesrecognizer to scroll an image. here is code.

 UIPinchGestureRecognizer *pinchGesture = [[UIPinchGestureRecognizer alloc]   
 initWithTarget:self action:@selector(scaleImage:)];
 [self.view addGestureRecognizer:pinchGesture];

 - (void)scaleImage:(UIPinchGestureRecognizer *)recognizer
 {

 if([recognizer state] == UIGestureRecognizerStateEnded) {

    previousScale = 1.0;
    return;
 }

  CGFloat newScale = 1.0 - (previousScale - [recognizer scale]);
  CGAffineTransform currentTransformation = yourimage.transform;
  CGAffineTransform newTransform = CGAffineTransformScale(currentTransformation, newScale, newScale);
  yourimage.transform = newTransform;
  previousScale = [recognizer scale];
}

Upvotes: 0

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