Stall in animation

Posted by tech74 on Stack Overflow See other posts from Stack Overflow or by tech74
Published on 2010-05-22T09:47:35Z Indexed on 2010/05/22 9:50 UTC
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Hi , I am using this code from this site

http://ramin.firoozye.com/2009/09/29/semi-modal-transparent-dialogs-on-the-iphone/

to show a modal view and remove it. It displays fine ie drops in from the top but when being removed it stalls just on its way out just for a fraction of second but its noticeable how do i get rid of the stall.

The view i am showing is view of a viewcontroller which is a memeber of the parent viewcontroller so i call methods like this to display

[self showModal:self.modalController.view]

to hide

[self hideModal:self.modalController.view];

  • (void) showModal:(UIView*) modalView { UIWindow* mainWindow = (((SessionTalkAppDelegate*) [UIApplication sharedApplication].delegate).window);

    //CGPoint middleCenter = modalView.center; CGPoint middleCenter = CGPointMake(160, 205); CGSize offSize = [UIScreen mainScreen].bounds.size; //CGPoint offScreenCenter = CGPointMake(offSize.width / 2.0, offSize.height * 1.5); CGPoint offScreenCenter = CGPointMake(offSize.width / 2.0, -100); // start from top modalView.center = offScreenCenter; // we start off-screen [mainWindow addSubview:modalView];

    // Show it with a transition effect [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:0.3]; // animation duration in seconds [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut]; modalView.center = middleCenter; [UIView commitAnimations]; }

// Use this to slide the semi-modal back up. - (void) hideModal:(UIView*) modalView { CGSize offSize = [UIScreen mainScreen].bounds.size; //CGPoint offScreenCenter = CGPointMake(offSize.width / 2.0, offSize.height * 1.5); CGPoint offScreenCenter = CGPointMake(offSize.width / 2.0, -100); [UIView beginAnimations:nil context:modalView]; [UIView setAnimationDuration:0.3]; [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut]; [UIView setAnimationDelegate:self]; [UIView setAnimationDidStopSelector:@selector(hideModalEnded:finished:context:)]; modalView.center = offScreenCenter; [UIView commitAnimations]; }

  • (void) hideModalEnded:(NSString *)animationID finished:(NSNumber *)finished context:(void )context { UIView modalView = (UIView *)context; [modalView removeFromSuperview]; //[modalView release]; }

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