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Search found 40 results on 2 pages for 'contentoffset'.

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• How to set UISCrollView's contentOffset during zooming(scrolling)?

  - by Mickey Shine

  I am dealing with UIScrollView and I need to dynamically set contentOffset. But I found it didn't work well if you set contentOffset during the zooming(scrolling) operation. It seems the touches will affect setting contentOffset. Any idea about this?

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• contentoffset during flick gesture

  - by Michael Xu

  Hi all, Does anyone else notice that the contentOffset of UIScrollView doesnt update during a flick gesture? It only updates after the flick gesture has totally completed, when the flick gesture is finished. After the finger has left the screen, the scrollview keeps moving, in the decelerating phase. but this isnt reflected in the contentOffset…

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• How to get UIScrollView contentOffset during an animation

  - by user249488

  I am trying to get the contentOffset property of a UIScrollView in the middle of a setContentOffset animation. Note I am not using the animated property of the method, but instead enclosing the setContentOffset operation within a UIView animation block so I can have finer control. When I try to read the value of contentOffset in the middle of the…

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• How to intercept UIScrollView contentOffset changes from UITableView subclass?

  - by mystify

  Actually, a UITableView is a UIScrollView (inherits from that). Now, I made a UITableView subclass and added this line of code to it: - (void)scrollViewDidScroll:(UIScrollView *)scrollView { NSLog(@"contentOffset: %@", NSStringFromCGPoint(self.contentOffset)); } For some reason this is never called when I scroll the table view. But since…

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• Animating the offset of the scrollView in a UICollectionView/UITableView causes prematurely disappearing cells

  - by radutzan

  We have a UICollectionView with a custom layout very similar to UITableView (it scrolls vertically). The UICollectionView displays only 3 cells simultaneously, with one of them being the currently active cell: [ 1 ] [*2*] [ 3 ] (The active cell here is #2.) The cells are roughly 280 points high, so only the active cell is fully visible on…

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• Stop UITextView from jumping when programatically setting text

  - by Michael Waterfall

  Hi there, I have to update a small amount of text in a scrolling UITextView. I'll only be inserting a character where the cursor currently is, and I'll be doing this on a press of a button on my navigation bar. My problem is that whenever I call the setText method of the text view, it jumps to the bottom of the text. I've tried using…

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• Is contentOffset the right property to determine the scrolling position of the scroll view?

  - by mystify

  I need to get the current scrolling position of an UIScrollView. How could I do that?

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• UIScrollView Infinite Scrolling

  - by Ben Robinson

  I'm attempting to setup a scrollview with infinite (horizontal) scrolling. Scrolling forward is easy - I have implemented scrollViewDidScroll, and when the contentOffset gets near the end I make the scrollview contentsize bigger and add more data into the space (i'll have to deal with the crippling effect this will have later!) My…

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• Justifying UIVIews on the iPhone: Algorithm Help

  - by coneybeare

  I have been messing around with a way to justify align a collection of UIView subclasses within a containing view. I am having a little bit of trouble with the algorithm and was hoping someone could help spot my errors. Here is pseudocode of where I am now: // 1 see how many items there are int count = [items count]; // 2 figure…

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• How to use drag and drop within a UIScrollView

  - by user249488

  I am trying to drag and drop UIViews within a UIScrollView. I'd like the UIScrollView to scroll if I drag a UIView so that it intersects the top or bottom of the ScrollView. If it touches the top, it should scroll up. If it touches the bottom, it should scroll down. Once the UIView is moved such that it is no longer intersecting the…

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• Popovercontroller doesn't display full

  - by user2959234

  I have an UIPopovercontroller in with an content that generate from an viewcontroller. popOverController = [[UIPopoverController alloc]initWithPopUp:emLightPopUp]; popOverController.delegate = self; // Get device position. CGRect position = {parentButton.frame.origin,emLightPopUp.popUpView.frame.size}; CGSize…

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• Fitting an Image to Screen on Rotation iPhone / iPad ?

  - by user356937

  I have been playing around with one of the iPhone examples from Apple' web site (ScrollViewSuite) . I am trying to tweak it a bit so that when I rotate the the iPad the image will fit into the screen in landscape mode vertical. I have been successful in getting the image to rotate, but the image is larger than the height…

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• iPhone SDK: How to centre content in a UIScrollView during setZoomScale?

  - by Russell Quinn

  I'm using a UIScrollView to show photos. If they are zoomed out so they are smaller than the scroll view in one dimension then the content is centred using contentInset and contentOffset. This all works fine for scrolling and manual zooming. However, if I use setZoomScale (with animated YES) then when zooming out the…

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• iPhone UIScrollView / setContentOffset weirdness

  - by bibac

  Hi, I have a weird issue with setContentOffset which I don't seem to be able to solve: I'm trying to build an "endless" scroll view, so I'd like to reset the content offset at a certain position. With the code below setContentOffset will be called at x=160px. If I drag the scroll view my log looks like this: offset:…

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• How much difference you find between scrollview offset and contentview offset of table?

  - by neha

  Hi all, In my application, I want to detect the end of the entire table with scrollview. Since there're no sections in my scrollview, I'm using noOfRows*rowHeight to reach the end. I'm using scrollview.contentOffset.y to detect the y offset, but this contentOffset isn't matching the multiplication result i.e. I have…

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• How do I properly handle rotation of a UIScrollView containing UIImageViews?

  - by bpapa

  I'm developing an image viewer, much like the Photos App. It's a UIScrollView with paging enabled with images loaded from the internet, so I've adapted portions of the LazyTableImages sample. The Scroll View and each ImageView inside of it have all of their autoresize mask flags set. When I first observed how…

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• Redrawing content of UIWebView

  - by btate

  I have a bunch of webviews with static html content that I'm putting in a scroll view as pages. That works fine, but having 20 something full screen subviews of the scroll view is causing some lag. I solved that by only placing 5 at a time in there. The current view, and the two next and two previous. The…

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• UITableView having one Cell with multiple UITextFields (some of them in one row) scrolling crazy

  - by Allisone

  I have a UITableView (grouped). In that tableview I have several UITableViewCells, some custom with nib, some default. One Cell (custom) with nib has several UITextfields for address information, thus also one row has zip-code and city in one row. When I get the keyboard the tableview size seems to be…

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• iPhone scrollView won't scroll after keyboard is closed

  - by Rob

  I was trying to implement a way to have the UITextField move up when the keyboard opened so that the user could see what they were typing but after implementing the code - it locks my scroll. The view will scroll when the user first gets to that view but after inputting text and closing the keyboard…

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• MIN() and MAX() in Swift and converting Int to CGFloat

  - by gotnull

  I'm getting some errors with the following methods: 1) How do I return screenHeight / cellCount as a CGFLoat for the first method? 2) How do I use the equivalent of ObjC's MIN() and MAX() in the second method? func tableView(tableView: UITableView!, heightForRowAtIndexPath indexPath: NSIndexPath!)…

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• How can i scroll to the nearest page in a UIScrollView with paging enabled?

  - by nathanjosiah

  [UIScrollView setContentOffset:CGPointMake(floor((UIScrollView.contentOffset.x - UIScrollView.frame.size.width * 2) / UIScrollView.frame.size.width), 0) animated:NO]; thats all i have but it doesn't work correctly

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• UIScrollView setZoomScale not working ?

  - by iFloh

  Hi, I am struggeling with my UIScrollview to get it to zoom-in the underlying UIImageView. In my view controller I set - (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView { return myImageView; } In the viewDidLoad method I try to set the zoomScale to 2 as follows (note the…

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• UIScrollview setContentOffset immediate animation?

  - by Jess

  Is there anyway to get the setContentOffset animation to happen immediately instead of waiting until the app returns to the main run loop? I tried setting the animation property to NO and nesting inside of an animation block but it still waits until returning to the main run loop. I've also…

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• Intercept UITableView scroll touches

  - by Jonesy

  Is it possible to control when the UITableView scrolls in my own code. I am trying to get behaviour where a vertical swipe scrolls and a horizontal swipe gets passed through to my code (of which there are many example) BUT I want a DIAGONAL swipe to do nothing, i.e the UITableView should…

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• iPhone UIScrollView - How to animate scrolling with steady contents?

  - by timbos

  Hi all, I'm wondering if anyone knows how to prevent the contents of a uiscrollview from moving unsteadily when scrolling manually by setting the content offset. When scrolling by touch the text remains clear and steady. I would like to recreate this by animating with the animated option…

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