我想玩UIPopupController,我明白我无法检测到我的popover何时解雇.
我的步骤：
1.从XCode创建示例(文件 – >新项目 – >实用应用程序)
2.添加到MainViewController.h UIPopoverControllerDelegate
我的步骤：
1.从XCode创建示例(文件 – >新项目 – >实用应用程序)
2.添加到MainViewController.h UIPopoverControllerDelegate
#import "FlipsideViewController.h" @interface MainViewController : UIViewController <FlipsideViewControllerDelegate,UIPopoverControllerDelegate> @property (strong,nonatomic) UIPopoverController *flipsidePopoverController; - (IBAction)showInfo:(id)sender; @end
>在MainViewController中：
- (IBAction)showInfo:(id)sender
{
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
FlipsideViewController *controller = [[FlipsideViewController alloc] initWithNibName:@"FlipsideViewController" bundle:nil];
controller.delegate = self;
controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
[self presentModalViewController:controller animated:YES];
} else {
if (!self.flipsidePopoverController) {
FlipsideViewController *controller = [[FlipsideViewController alloc] initWithNibName:@"FlipsideViewController" bundle:nil];
controller.delegate = self;
self.flipsidePopoverController.delegate = self
self.flipsidePopoverController = [[UIPopoverController alloc] initWithContentViewController:controller];
}
if ([self.flipsidePopoverController isPopoverVisible]) {
[self.flipsidePopoverController dismissPopoverAnimated:YES];
} else {
[self.flipsidePopoverController presentPopoverFromBarButtonItem:sender permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
}
}
}
-(void)popoverControllerDidDismissPopover:(UIPopoverController *)popoverController
{
NSLog(@"OLOLO");
}
但是当我点击某个地方,并且popover消失时,Console中没有NSLog消息.
我究竟做错了什么？
解决方法
将popover的代表设置为self,你也可以使用两个popover代理,即： –
/* Called on the delegate when the popover controller will dismiss the popover. Return NO to prevent the dismissal of the view. */ - (BOOL)popoverControllerShouldDismissPopover:(UIPopoverController *)popoverController; /* Called on the delegate when the user has taken action to dismiss the popover. This is not called when -dismissPopoverAnimated: is called directly. */ - (void)popoverControllerDidDismissPopover:(UIPopoverController *)popoverController;
