should this code work? if there don't appear to be any errors i'm
concerned it may be a bug, but i can't be sure. :-/
On Thu, Jun 11, 2009 at 7:15 AM, Chunk 1978<chunk1...@gmail.com> wrote:
> while dragging (touching) a view, i'm trying to anchor the view in the
> center of the screen and resize the view's width and height based on
> the drag, but it's flashes all crazy and i can't figure out why it's
> doing so. i think it has to do with the resetting of the origin
> because if i set the origin of the view to a static location in the
> (void)touchesMoved method, it works fine, but since the drag resizes
> the view, it also (is suppose to) changes it's origin. i've been in
> front of this for 4 hours with no luck. please help.
>
> -=-=-=-=-=--=-
> - (void)viewDidLoad
> {
> CGRect fullScreenRect = [[UIScreen mainScreen] bounds];
>
> UIView *aView = [[UIView alloc] initWithFrame:fullScreenRect];
> aView.backgroundColor = [UIColor redColor];
> self.background = aView;
> [aView release];
>
> CGRect aFrame = CGRectMake(0, 0, 50, 50);
> aFrame.origin = CGPointMake(CGRectGetMidX(fullScreenRect) -
> CGRectGetMidX(aFrame), CGRectGetMidY(fullScreenRect) -
> CGRectGetMidY(aFrame));
>
> UIView *aBoxView = [[UIView alloc] initWithFrame:aFrame];
> aBoxView.backgroundColor = [UIColor whiteColor];
> self.boxView = aBoxView;
> [aBoxView release];
>
> [self.view insertSubview:background atIndex:0];
> [self.view insertSubview:boxView atIndex:1];
>
> [super viewDidLoad];
> }
>
>
> - (void)dealloc
> {
> [background release];
> [boxView release];
> [super dealloc];
> }
>
>
> #pragma mark Touch Methods
>
> - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
> {
> CGPoint point = [[touches anyObject] locationInView:self.view];
> firstTouchPoint = point;
> }
>
> - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
> {
> CGRect fullScreenRect = [[UIScreen mainScreen] bounds];
>
> CGPoint point = [[touches anyObject] locationInView:self.view];
> CGRect boxFrame = boxView.frame;
>
> boxFrame.size.width += point.x - firstTouchPoint.x;
> boxFrame.size.height += point.y - firstTouchPoint.y;
> boxFrame.origin = CGPointMake(CGRectGetMidX(fullScreenRect) -
> CGRectGetMidX(boxFrame), CGRectGetMidY(fullScreenRect) -
> CGRectGetMidY(boxFrame));
>
> [boxView setFrame:boxFrame];
> firstTouchPoint = point;
>
> NSString *log = [NSString stringWithFormat:@"%f, %f",
> boxFrame.origin.x, boxFrame.origin.y];
> NSLog(log);
> }
>
> -=-=-=-=-=-=-=-
>
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