Author: Paul

CGRectIntegral is a function for rounding all the values of a CGRect at once, typically used for snapping frames to pixels. For a good example of how this helps prevent image blurring and other related rendering issues see this stackoverflow answer. On retina screens CGRectIntegral still rounds to the nearest point (1.0) rather than the… Continue reading Retina alterative to CGRectIntegral

Sometime you need to know if a UITableViewCell is completely visible and for those times there’s this handy UITableViewCell category. //Place in UITableViewCell Category – (BOOL) isCompletelyVisible { // For parents category see pdenya.com/g/uiview_parents UITableView *tableview = (UITableView *)[self parents:[UITableView class]]; CGRect rect = [tableview rectForRowAtIndexPath:[tableview indexPathForCell:self]]; rect = [tableview convertRect:rect toView:tableview.superview]; BOOL completelyVisible =… Continue reading Checking if a UITableViewCell is fully visible

Whenever you have a modal element that outside touches should cancel a few things need to happen: Touches inside the modal element should behave normally Outside touches should not trigger touch events on tappable elements Outside touches should trigger a handler to close the modal In my case I was swiping a UITableViewCell and revealing… Continue reading Tap anywhere else to cancel in Objective C