MultiView

最新推荐文章于 2025-03-17 23:41:19 发布

原创最新推荐文章于 2025-03-17 23:41:19 发布 · 373 阅读

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#uiview #transition #cache

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Two Points

lazy loading and reconstruction

- (void)viewDidLoad { BlueViewController *blueController = [[BlueViewController alloc] initWithNibName:@"BlueView" bundle:nil]; self.blueViewController = blueController; [self.view insertSubview:blueController.view atIndex:0]; [blueController release]; }

- (IBAction)switchViews:(id)sender { if (self.yellowViewController == nil) { YellowViewController *yellowController = [[YellowViewController alloc] initWithNibName:@"YellowView" bundle:nil]; self.yellowViewController = yellowController; [yellowController release]; } [UIView beginAnimations:@"View Flip" context:nil]; [UIView setAnimationDuration:1.25]; [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut]; UIViewController *coming = nil; UIViewController *going = nil; UIViewAnimationTransition transition; if (self.blueViewController.view.superview == nil) { coming = blueViewController; going = yellowViewController; transition = UIViewAnimationTransitionFlipFromLeft; } else { coming = yellowViewController; going = blueViewController; transition = UIViewAnimationTransitionFlipFromRight; } [UIView setAnimationTransition: transition forView:self.view cache:YES]; [coming viewWillAppear:YES]; [going viewWillDisappear:YES]; [going.view removeFromSuperview]; [self.view insertSubview: coming.view atIndex:0]; [going viewDidDisappear:YES]; [coming viewDidAppear:YES]; [UIView commitAnimations]; }