How to rotate and resize uiview at same time? - iphone

Question

I'm using SPUserResizableView to resize my view. i had added rotation funcitionality to it . when i touch corner handel view should rotate for this purpose i have added some code but its not working properly. here is my code :
CGPoint center = CGPointMake(CGRectGetMidX([view bounds]), CGRectGetMidY([view bounds]));
CGPoint currentTouchPoint = [touch locationInView:view];
CGPoint previousTouchPoint = [touch previousLocationInView:view];
CGFloat angleInRadians = atan2f(currentTouchPoint.y - center.y, currentTouchPoint.x - center.x) - atan2f(previousTouchPoint.y - center.y, previousTouchPoint.x - center.x);
[self setTransform:CGAffineTransformRotate([view transform], angleInRadians)];
Note: when user touch corner handel a method get called in which i have written this piece of code. If user touches edges handel that method wont called.
Thanks.

Answer 1

try this :
UIPinchGestureRecognizer *pinchRecognizer = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:#selector(scale:)];
[pinchRecognizer setDelegate:self];
[imgBg addGestureRecognizer:pinchRecognizer]; // imgBg is my imageview you can set your view
UIRotationGestureRecognizer *rotationRecognizer = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:#selector(rotate:)];
[rotationRecognizer setDelegate:self];
[imgBg addGestureRecognizer:rotationRecognizer];
#pragma mark -
#pragma mark - GestureRecognizer Method
-(void)scale:(id)sender {
[viewGesture bringSubviewToFront:[(UIPinchGestureRecognizer*)sender view]];
if([(UIPinchGestureRecognizer*)sender state] == UIGestureRecognizerStateEnded) {
lastScale = 1.0; // declacre float instance in .h file
return;
}
CGFloat scale = 1.0 - (lastScale - [(UIPinchGestureRecognizer*)sender scale]);
CGAffineTransform currentTransform = [(UIPinchGestureRecognizer*)sender view].transform;
CGAffineTransform newTransform = CGAffineTransformScale(currentTransform, scale, scale);
[[(UIPinchGestureRecognizer*)sender view] setTransform:newTransform];
lastScale = [(UIPinchGestureRecognizer*)sender scale];
}
-(void)rotate:(id)sender {
[viewGesture bringSubviewToFront:[(UIRotationGestureRecognizer*)sender view]];
if([(UIRotationGestureRecognizer*)sender state] == UIGestureRecognizerStateEnded) {
lastRotation = 0.0;
return;
}
CGFloat rotation = 0.0 - (lastRotation - [(UIRotationGestureRecognizer*)sender rotation]);
CGAffineTransform currentTransform = [(UIPinchGestureRecognizer*)sender view].transform;
CGAffineTransform newTransform = CGAffineTransformRotate(currentTransform,rotation);
[[(UIRotationGestureRecognizer*)sender view] setTransform:newTransform];
lastRotation = [(UIRotationGestureRecognizer*)sender rotation];
}