uiviewanimation

问题 I am doing a task in which, i need to shift the view by 35 pixels in order to show a view which is present below that view. Or you can say i need to insert a bar like notification on top and shift the existing view by 35 pixels at runtime. The problem is with auto layout on in order to support all the screens. Shifting is not happening as we want.... Any suggestions here ? Top view has a constraint that its distance with top view is zero, which needs to change at runtime, when we to show the

问题 I have created a main View and in that I add 9 UIMyView that I subclassed from UIView. I add instances of that UIMyViews using NSBundle to load the nib file and addSubview in the main view controller, of course all of these views are appeared in the upper left corner of the super view one hiding the other and the last one to be visible, which either I need to position them somehow using points in super view or create something like a table and add to its cells the UIMyViews?! Imagine you have

问题 I have created a main View and in that I add 9 UIMyView that I subclassed from UIView. I add instances of that UIMyViews using NSBundle to load the nib file and addSubview in the main view controller, of course all of these views are appeared in the upper left corner of the super view one hiding the other and the last one to be visible, which either I need to position them somehow using points in super view or create something like a table and add to its cells the UIMyViews?! Imagine you have

问题 I have the following code (see below) and if I compile it as is i get "internal compiler error: Bus error". If I comment out the last ImageOne.transform, everything works fine. If the file ends in .m it compiles fine if I change it to .mm then it has an issue. Any ideas? [UIView animateWithDuration:duration1 delay:delay options:UIViewAnimationCurveEaseIn animations:^{ ImageOne.transform = CGAffineTransformMakeScale(scale1, scale1); ImageOne.alpha = 1.0f; } completion:^(BOOL finished){ [UIView

问题 I am using this message to animate a customer view to the lower edge of the device screen. I've connected the layout constraint and set initial constant as -60. When the value is set to 0, I expect the view to animate to top. But unfortunately the expected functionality is not working. Even the method is called, the view is hoped up when interface orientation changes. I am using Xcode 6.4 and iOS 8 as base sdks. Any help will be appreciated. if (alertVisible) { self

问题 I'm using UIPageViewController to create some introduction slides for my objective-c app. But when I slide more in the first slide to left or slide last slider image more to right, I can see a black background. How can I prevent user sliding more left in first slider & sliding more right in the last slider. Thanks a lot. 回答1: A quick and easy solution can be to place a UIView behind your UIpageView . This way, you won't be getting black background. Also have a look at this stack overflow's

问题 I have AuthViewController that is presenting MainViewController like so: let mainVC = MainViewContoller() mainVC.modalTransitionStyle = .CrossDissolve authVC.presentViewController(mainVC, animated: true, completion: nil) I want the AuthViewController to hide the status bar, but the MainViewController to show, like so: AuthViewController { override func preferredStatusBarStyle() -> UIStatusBarStyle { return .LightContent } override func preferredStatusBarUpdateAnimation() ->

问题 I have AuthViewController that is presenting MainViewController like so: let mainVC = MainViewContoller() mainVC.modalTransitionStyle = .CrossDissolve authVC.presentViewController(mainVC, animated: true, completion: nil) I want the AuthViewController to hide the status bar, but the MainViewController to show, like so: AuthViewController { override func preferredStatusBarStyle() -> UIStatusBarStyle { return .LightContent } override func preferredStatusBarUpdateAnimation() ->

问题 I want to animate the collectionview cells,the animations should be like this: First Cell Appear and then after some delay second cell will appear with some animations ,this will go on like this for all the cells. How to achieve this? 回答1: A solution would be to create the datasource incrementally so you add a cell after a set timed delay. Once added, insert Make a call to set up a timer to add to your dataSource with whatever delay you like [NSTimer scheduledTimerWithTimeInterval:0.05 target

问题 I have a UIImageView that should animate from size (0,0) --> (93,75) I have the following [UIView animateWithDuration:0.5 delay:0 options:UIViewAnimationOptionTransitionNone animations:^{ imgButton.layer.anchorPoint = CGPointMake(imgButton.bounds.size.width/2, imgButton.bounds.size.height/2); CGRect btnFrame = imgButton.frame; btnFrame.size.width = 105; btnFrame.size.height = 85; imgButton.frame = btnFrame; } completion:^(BOOL finished) { [self animageButton2:imgButton]; }]; This is working