UIPopoverController的应用(转载)
1、初始化UIPopoverController UIPopoverController *popover = [[UIPopoverController alloc]initWithContentViewController:navigationController]; //必须是个 ViewController /*且该 ViewController的 viewDidLoad方法中要设置其在popover中的尺寸，如 self.contentSizeForViewInPopover = CGSizeMake(300.0, 280.0); */ self.recentSearchesPopoverController = popover; recentSearchesPopoverController.delegate = self; //self要实现UIPopoverControllerDelegate协议 2、设置当popover弹出时，用户仍可以交互的视图 // Ensure the popover is not dismissed if the user taps in the search bar. popover.passthroughViews = [NSArray arrayWithObject:searchBar]; 3、展现popover [self.recentSearchesPopoverController presentPopoverFromRect:self.searchBar.bounds inView:self.searchBar permittedArrowDirections:UIPopoverArrowDirectionAny animated:NO]; 4、消失popover //dismiss the popover. [recentSearchesPopoverController dismissPopoverAnimated:YES]; 5、实现 UIPopoverControllerDelegate协议的方法 - (void)popoverControllerDidDismissPopover:(UIPopoverController *)popoverController { }