animatewithduration

I created some animations in my project. Basically, I use UIView animate and CGAffineTransform, but a very strange thing happened and I have no idea. Hope someone can help me solve this problem. Thanks in advance. This is the strange thing: After the user clicks on a button, the button slides off screen and another two buttons slide on the screen (I just changed the center point of these buttons to achieve this animation). And, some time later, a view on the screen start shaking (I use CGAffineTransform to achieve this). At this moment, the strange thing happens - the button that previous slid

The Good My drag & drop function almost works wonderfully. I longPress a cell and it smoothly allows me to move the pressed cell to a new location between two other cells. The table adjusts and the changes save to core data. Great! The Bad My problem is that if I drag the cell below the bottom cell in the table, even if I don't let go (un-press) of the cell... the app crashes. If I do the drag slowly, really it crashes as the cell crosses the y-center of the last cell... so I do think it's a problem related to the snapshot getting a location. Less important, but possibly related, is that if I

I am trying to use [UIView animateWithDuration:1 delay:2 options:UIViewAnimationOptionCurveEaseIn animations:^{ } completion:^ (BOOL completed) {} ]; however no matter what number I put for the delay, there is no delay. I am trying to have a series of buttons fade in one after the other when another button is touched. So I use a series of UIView animate with various lengths of delay but they all show up at the same time no matter what time delay I enter. Does anyone have some suggestions? First of all, the values animateWithDuration and delay are float values, and should be as 1.0 and 2.0

I have a button that calls an animateWithDuration code that fades an image out, fades text & a new bg color in , and then resets back to normal. The animation takes a few seconds to complete and works great. However! There's a problem: Sometimes this button will be pushed again before the animation finishes. When this happens, I want the current animate to stop and start over again. Researched Solution Not Working According to my reading, the solution should be simple, just import QuartzCore and add: button.layer.removeAllAnimations() This does remove the animation but the new/second animation

I am trying to create a method which makes use of UIView's "+animateWithDuration:animations:completion" method to perform animations, and wait for completion. I am well aware that I could just place the code that would normally come after it in a completion block, but I would like to avoid this because there is a substantial amount of code after it including more animations, which would leave me with nested blocks. I tried to implement this method as below using a semaphore, but I don't think this is the best way to do it, especially because it doesn't actually work. Can anyone tell me what is

In objective-C my animation bit would look something like this: [UIView animateWithDuration:0.5 animations:^{ [[[_storedCells lastObject] topLayerView] setFrame:CGRectMake(0, 0, swipeableCell.bounds.size.width, swipeableCell.bounds.size.height)]; } completion:^(BOOL finished) { [_storedCells removeLastObject]; }]; If I translate that into Swift it should look something like this: UIView.animateWithDuration(0.5, animations: { self.storedCells[1].topLayerView.frame = CGRectMake(0, 0, cell.bounds.size.width, cell.bounds.size.height) }, completion: { (finished: Bool) in //self.storedCells