problem with setting new frame.

[knut]

Hi All

I need set new frame before rotate view. but my view size does not change
here is how I do it .

[view setFrame:CGRectMake(0, 0, 50 , 100)];
[[AnimationHelper getInstance] changeCenterWithRotation:view center:retPosition rotation:(90.0) withAnimation:YES target:self finishSelector:nil];

-(void) changeCenterWithRotation:(UIView *)view center:(CGPoint)center rotation:(double)angle withAnimation:(BOOL)animation target:(id)target finishSelector:(SEL)finishSelector{
    if(animation) {
        [UIView beginAnimations:nil context:nil];
        [UIView setAnimationDuration:animationDuration];
        [UIView setAnimationDelegate:target];
        [UIView setAnimationDidStopSelector:finishSelector];   
    }
    
	view.center = center;
    view.transform = CGAffineTransformMakeRotation(M_PI * angle / 180.0);
    
    if(animation) {
        [UIView commitAnimations]; 
    }
}

Thanks.

[Duncan C]

Originally Posted by knut

Hi All

I need set new frame before rotate view. but my view size does not change
here is how I do it .

[view setFrame:CGRectMake(0, 0, 50 , 100)];
[[AnimationHelper getInstance] changeCenterWithRotation:view center:retPosition rotation:(90.0) withAnimation:YES target:self finishSelector:nil];

-(void) changeCenterWithRotation:(UIView *)view center:(CGPoint)center rotation:(double)angle withAnimation:(BOOL)animation target:(id)target finishSelector:(SEL)finishSelector{
    if(animation) {
        [UIView beginAnimations:nil context:nil];
        [UIView setAnimationDuration:animationDuration];
        [UIView setAnimationDelegate:target];
        [UIView setAnimationDidStopSelector:finishSelector];   
    }
    
	view.center = center;
    view.transform = CGAffineTransformMakeRotation(M_PI * angle / 180.0);
    
    if(animation) {
        [UIView commitAnimations]; 
    }
}

Thanks.

It's a little hard to tell what's going wrong without knowing more about your project.

One thing to look into:

The docs on UIView state that the frame property is undefined if the transformation matrix is not the identity matrix:

Warning: If the transform property is not the identity transform, the value of this property [frame] is undefined and therefore should be ignored.

If you want your view to shrink, you could use the transformation matrix to reduce it's scale as well as rotate it.

[knut]

Thanks for replay.


my view is card. I am writing game. so I need rotate card and after rotation I need make card smaller i.e set new frame to my card view.

Thanks.

[Duncan C]

Originally Posted by knut

Thanks for replay.


my view is card. I am writing game. so I need rotate card and after rotation I need make card smaller i.e set new frame to my card view.

Thanks.

So apply a scale factor to the card view's transform once the animation completes.

As I said in my previous post, you can't use the frame property if you apply a transform to a view.