How to disable horizontal scrolling of UIScrollView?


How to disable horizontal scrolling of UIScrollView?



I have a UIView like iPhone's Springboard. I have created it using a UIScrollView and UIButtons. I want to disable horizontal scrolling on said scrollview. I want only vertical scrolling. How do i accomplish this?


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You have to set the contentSize property of the UIScrollView. Slow loading of UITableView. How know why? For example, if your UIScrollView is 320 pixels wide (the width of the screen), then you could did this:. How optimize sqlite query with dates & substr?
CGSize scrollableSize = CGSizeMake(320, myScrollableHeight); [myScrollView setContentSize:scrollableSize]; 
The UIScrollView will then only scroll vertically, for the reason this it must already display everything horizontally.. How use sqlite + fdbm library with threading on the iPhone
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UPDATED: (After @EranMarom pointed out on his comment). You must stop horizontal scrolling or vertical scrolling in the ScrollViewDelegate Method. Here it is how,. Stops Horizontal Scrolling:. If you want to scroll horizontally, then you need to increase the contentOffset.x. Preventing this stops the scrollview scroll in horizontal direction..
- (void)scrollViewDidScroll:(UIScrollView *)sender {     sender.contentOffset.x = 0.0 } 
Stops Vertical Scrolling:. If you want to scroll vertically, then you need to increase the contentOffset.y. Preventing this stops the scrollview scroll in vertical direction..
- (void)scrollViewDidScroll:(UIScrollView *)sender {     sender.contentOffset.y = 0.0 } 
Above code prevents the changes in x and y of a scrollview contentOffset and it leads to stop the scrolling in scrollViewDidScroll: method..

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since iOS7 use .
self.automaticallyAdjustsScrollViewInsets = NO; 
//and create you page scroller with 3 pages.
    self.pageView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];     [self.pageView setContentSize:CGSizeMake(self.view.frame.size.width*3, self.view.frame.size.height)];     [self.pageView setShowsVerticalScrollIndicator:NO];     [self.pageView setPagingEnabled:YES];     [self.view addSubview:self.pageView]; 

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Swift solution.
Create two outlets, one for your view and one for your scroll view:.
@IBOutlet weak var myView: UIView! @IBOutlet weak var scrollView: UIScrollView! 
Then in your viewDidLayoutSubviews you must add the following code:.
let scrollSize = CGSizeMake(myView.frame.width, myView.frame.height) scrollView.contentSize = scrollSize 
What we've done is collected the height and width of the view and set the scrollViews content size to match it. This will stop your scrollview from scrolling horizontally. . More Thoughts:. CGSizeMake takes a width & height using CGFloats. You may need to use your UIScrollViews existing height for the second parameter. Which would look like this:.
let scrollSize = CGSizeMake(myView.frame.width, scrollView.contentSize.height) 

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Once I did it replacing the UIScrollView with a UITableView with only 1 cell, it worked fine..

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I struggled with this for any time endeavor unsuccessfully the various suggestions in this and another threads. However, in ananother thread (not sure where) any one suggested this using a negative constraint on the UIScrollView worked for him. So I tried various combinations of constraints with inconsistent results. What eventually worked for me was to add leading and trailing constraints of -32 to the scrollview and add an (invisible) textview with a width of 320 (and centered)..


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