uiscrollview

问题 A lot of questions are available with this but I'm very bad with constraints. So I've added a UIScrollView and the UIView I want to show has height of 700 and this is fixed 700 no dynamic height. The constraints I've for UIScrollView are: And for UIView the constraints are: But it's not scrolling. 回答1: What I do when I need a scrollable view is what follows - just go over your constraints in storyboards and do the same there (especially pay attention to second step): I add a scrollView to the

问题 I've been tasked with updating an app we have that I didn't write. It contains a scrollview that scrolls horizontally and only contains UIButtons. The buttons not only have an action to open the app they represent, but they can be dragged if tapped and held. There is another scrollview below the scrollview in question that accepts the dragging of the buttons. Everything has and is working as expected pre iOS 7. On an iOS 7 device, the button taps are being registered as soon as the scrollview

问题 I have got a uitableview inside of a uiscrollview. So the uitableview is smaller than the uiscrollview. And when I start to scroll down on the uitableview and it reaches the bottom, I am able to scroll in the uiscrollview. And it works fairly. But not perfectly. I would like to make the ux perfect so the scrollview would be kind of an extension (or another section of the uitableview). I don't want to add any section or footerview at the bottom of the tableview. I was wondering on doing this

问题 Here is probably, next stupid question from iOS newbie, what I'm experimenting is scrolling and auto layout stuff. So I've created storyboard and added one view embedded by scrolling view. View has white background and I set scrolling view background to be blue: Constraints you see all have 0 value, to match parent. In portrait mode everything fine: But in landscape not, the leaf view not resized and scrolling view (blue one area at the right becomes visible) 回答1: The trick with scroll views

问题 I need following view structure, with embedded 2 UIWebViews and 1 UIView (loaded from other xib). But the problem is, because this need to be inside UIScrollView, with same impression like this is single page. (only vertical scrolling need to be enabled). In those UIWebViews, html content is loaded from NSString. Size (height) of UIWebViews and child view is variable. Any advice, how to do that? 回答1: Important: You should not embed UIWebView or UITableView objects in UIScrollView objects. If

问题 In my iOS app I have have a lots of view and image and labels are the subviews of the. view. My problem is while loading images from url or remote server only last image is loading from url . Other images are loaded with placeholders. Tried many ways but unable to solve it . My code and screenshot are provided below catScrollView=[[UIScrollView alloc]initWithFrame:CGRectMake(0, 10, self.view.frame.size.width,300)]; catScrollView.contentSize = CGSizeMake(([popularCategoryArray count] * 90)/1.8

问题 My program doesnt even go into the scrollViewDidScroll method. I have no idea why. My view did load looks like this: - (void)viewDidLoad { [super viewDidLoad]; // Set the size of the content to be displayed self.scrollView.contentSize = CGSizeMake(self.scrollView.bounds.size.width * ScrollViewControllerNumberOfPages, self.scrollView.bounds.size.height); // Turn on paging in the scroll view (can also be done in Interface Builder) self.scrollView.pagingEnabled = YES; NSLog(@"CurrentPage

问题 The scrollview in my main page stop working if I push something to the navigation controller and then pop back to the main page. It works normally if I reopen the application without pushing anything to the navigation controller yet. The scrollview is a horizontal scrollview which extends beyond the frame. I use it to scroll through buttons like when you switch application in iOS (iOS multitasking). This is the code where I push a new vc UIViewController *newVC = [[UIViewController alloc]

问题 How is this parallax effect done? Now let's say we had a paged UIScrollView and inside each page/section there was a UITableView and that image above with the cool parallax was inside of a UITableViewCell , so as you scroll left and right in the paged UIScrollView , you would see the parallax effect within the UITableViewCell 's. The parallax effect in this case would be horizontal like the video above, not vertical when scrolling up and down the UITableView . Could anyone please show or

问题 I have a UIScrollView with a very large content view, it's a bookshelf with around 1000 items on it, when the scroll views content becomes more than around 16000px high it shows a black background and all graphics overlap/blend together. Here is the sample code - (void)viewDidLoad { [super viewDidLoad]; // Doesn't work int sizeForContent = 20000; // Does Work //sizeForContent = 10000; UIScrollView *scroll = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self