I am recieving memory warning using 100 of animating images so I tried to use Core Animation instead but that gives me the same problem. This is because I don't know how to use replaceSublayer in m...

I am trying to apply a rotation animation by number of degrees to a UIImageView and persist the rotation transformation in the completion block. The problem that I am facing is that when the compl...

I'm trying to draw a animated circle but every segment needs to have another color. Now everything works except that my piece that is just drawed before I call the method again disappears so only t...

If I close my iPad app while I'm loading data from services, the app closes but then immediately opens again without my doing anything. At this point, I am not able to do anything; I can't close th...

I did a ViewController where there is a button and UITextfield when I click the button a UITableViewController with a UISearchBar is presented and a list of languages is displayed. My issue is when...

I'm using a CAKeyframeAnimation to animate a view along a CGPath. When the animation is done, I'd like to be able to call some other method to perform another action. Is there a good way to do this...

The Problem I have two view controllers, both are contained within respective UINavigationControllers and a single UITabBarController. On one of the view controllers I am creating a bubbles effect,...

I'm simply closing doors, delaying 2 sec/calling a method then opening them back. One comes from the left side and the other from the right side. I first used UIView animation block but then realiz...

I'm using GMSMapView. So I added custom GMSMarker and set the image(Ex. Bike image) and animating that marker when user starts moving and changing the angle of the marker in locationManager . Curr...

In a CATransaction I have the following code: [CATransaction setCompletionBlock:^{ ...do something .... }]; The animation runs for about half a second. I want to be able to cancel the completio...

I am trying to rotate a CAShapeLayer by an angle from its current angle whenever a button is pressed. I am using delegate function animationDidStop to set the transform of the layer during end of...

I am making an app that fetches JSON content of a blog. The titles of the blog articles are shown in tableView. The titles fetched were HTML encoded. So I decoded them using this code func confi...

How come the completion block for this CATransaction never fires? [CATransaction begin]; [CATransaction setCompletionBlock:^{ // table animation has finished NSLog(@"why does this section never ...

I'm getting this warning in the log window of the debugger: CoreAnimation: warning, deleted thread with uncommitted CATransaction; set CA_DEBUG_TRANSACTIONS=1 in environment to log backtraces. ...

I see many people use this to disable implicit animation: [CATransaction begin]; [CATransaction setDisableActions:YES]; someLayer.backgroundColor = someCGColor;//no animation [CATransaction commit...

I am having issues with the following warning: CoreAnimation: warning, deleted thread with uncommitted CATransaction; set CA_DEBUG_TRANSACTIONS=1 in environment to log backtraces. I am using an N...

I've used these three classes several times by separate several times. For example when I want to group several animations (i.e.: CABasicAnimations, etc) to happen simultaneously I first think of ...

While my app is running, I often get the following warning: CoreAnimation: warning, deleted thread with uncommitted CATransaction; set CA_DEBUG_TRANSACTIONS=1 in environment to log backtraces....

I have a CALayer which I merely create and add to a subview of my view controller's main view in the controller's initWithNibName: And then, I perform the following animation: [CATransaction begi...

Until now I've been able to animate the custom properties of my CALayer subclass, thanks to + (BOOL)needsDisplayForKey:(NSString *)key and CABasicAnimations. However it turns out that chaining ani...

I am performance testing my iPhone app: // using CATransaction like this goes from 14fps to 19fps [CATransaction begin]; [CATransaction setDisableActions: YES]; // NEG, as coord system is flipped...

I'm porting an iPhone app to Mac OS X. This code was being used successfully on the iPhone: - (void) moveTiles:(NSArray*)tilesToMove { [UIView beginAnimations:@"tileMovement" context:nil]; [UIVi...