I use pure structure like the following -view -scrollView -view A -view B -Button Make sure Button(THE LAST view) has a constraint(vertical spacing from its bottom to superview, which is the scrollview), in this case, no matter what changes for your view A and view B would be, scrollView’s height will be changed accordingly. I … Read more
In SDK 3.2 the touch handling for UIScrollView is handled using Gesture Recognizers. If you want to do two-finger panning instead of the default one-finger panning, you can use the following code: for (UIGestureRecognizer *gestureRecognizer in scrollView.gestureRecognizers) { if ([gestureRecognizer isKindOfClass:[UIPanGestureRecognizer class]]) { UIPanGestureRecognizer *panGR = (UIPanGestureRecognizer *) gestureRecognizer; panGR.minimumNumberOfTouches = 2; } }
The autoscroll-behavior is located in the UITableViewController functionality. To disable the automatic scrolling I found two ways: Use instead of the UITableViewController simply a UIViewController – set the datasource and delegate on your own. Override the viewWillAppear method and don’t call [super viewWillAppear: animated] With both solution you disable not only the Autoscroll, but also … Read more
Jeff’s solution wasn’t quite working for me, but this similar one does: http://charlesharley.com/2013/programming/uibutton-in-uitableviewcell-has-no-highlight-state In addition to overriding touchesShouldCancelInContentView in your scroll view subclass, you still need to set delaysContentTouches to false. Lastly, you need to return true rather than false for your buttons. Here’s a modified example from the above link. As commenters suggested, it … Read more
it should work using – (void)scrollToRowAtIndexPath:(NSIndexPath *)indexPath atScrollPosition:(UITableViewScrollPosition)scrollPosition animated:(BOOL)animated using it this way: NSIndexPath *indexPath = [NSIndexPath indexPathForRow:0 inSection:0]; [yourTableView scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionTop animated:YES]; atScrollPosition could take any of these values: typedef enum { UITableViewScrollPositionNone, UITableViewScrollPositionTop, UITableViewScrollPositionMiddle, UITableViewScrollPositionBottom } UITableViewScrollPosition;
There’s really no need to sum up all rows height, the new contentSize after reloading the table is already representing that. So all you have to do is calculate the delta of contentSize height and add it to the current offset. … CGSize beforeContentSize = self.tableView.contentSize; [self.tableView reloadData]; CGSize afterContentSize = self.tableView.contentSize; CGPoint afterContentOffset = … Read more
Or you could simply do CGRect visibleRect = [scrollView convertRect:scrollView.bounds toView:zoomedSubview]; Swift let visibleRect = scrollView.convert(scrollView.bounds, to: zoomedSubview)
It sets the distance of the inset between the content view and the enclosing scroll view. Obj-C aScrollView.contentInset = UIEdgeInsetsMake(0, 0, 0, 7.0); Swift 5.0 aScrollView.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 7.0) Here’s a good iOS Reference Library article on scroll views that has an informative screenshot (fig 1-3) – I’ll replicate … Read more
Figured it out. In my case, my UIScrollView contained a UIImage that I allowed zooming. Apparently that meant that scrolling is enabled and the UIScrollView had trouble distinguishing between gestures intended to scroll vs. swipe (next, previous image). The key in my case, is to disable scrolling in the scroll view when the image is … Read more
I think that automaticallyAdjustsScrollViewInsets only works when your controllers view is a UIScrollView (a table view is one). You’re problem seems to be that your controller’s view is a regular UIView and your UITableView is just a subview, so you’ll have to either: Make the table view the “root” view. Adjust insets manually: UIEdgeInsets insets … Read more