我确实有一个以编程方式生成的弹出视图控制器,没有来自主视图控制器的故事板,并且一旦用户在弹出视图控制器的工具栏上使用完成按钮引入输入,就想要忽略它。我一直试图使用protrocoll来解散popover但它不起作用。我一直在培养和应用在互联网上发现的几个建议,但都给出了同样的负面结果。我监督一些事情吗?
以下是相关代码:
主视图控制器.h
#import <UIKit/UIKit.h>
#import "PopOverContentVC.h"
@interface CCViewController : UIViewController <UIPopoverControllerDelegate, PopOverContentVCDelegate> {
UIPopoverController *detailViewPopover;
}
@property (retain, nonatomic) UIPopoverController *detailViewPopover;
@end
主视图控制器.m文件
#import "PopOverContentVC.h"
@interface CCViewController ()
@end
@implementation CCViewController
@synthesize detailViewPopover;
...
- (void) dismissPopOverContentVC{
[detailViewPopover dismissPopoverAnimated:YES];
detailViewPopover = nil;
}
- (void) popOverSetUp{
PopOverContentVC *content = [[PopOverContentVC alloc] init];
detailViewPopover = [[UIPopoverController alloc] initWithContentViewController:content];
detailViewPopover.popoverContentSize = CGSizeMake(500., 150.);
detailViewPopover.delegate = self;
[detailViewPopover presentPopoverFromRect:[self coordinatesOfSegment]
inView:self.spreadSheetView
permittedArrowDirections:UIPopoverArrowDirectionUp
animated:YES];
- (void) segmentSelectedAtRow: (UISegmentedControl *)sender{
if (self.detailViewPopover) {
[self.detailViewPopover dismissPopoverAnimated:YES];
self.detailViewPopover = nil;
[self popOverSetUp];
} else {
[self popOverSetUp];
}
}
...
@end
popover视图控制器.h文件
#import <UIKit/UIKit.h>
@class PopOverContentVC;
@protocol PopOverContentVCDelegate <NSObject>
- (void)dismissPopOverContentVC;
@end
@interface PopOverContentVC : UIViewController
@property (assign, nonatomic) id <PopOverContentVCDelegate> delegate;
- (void) doneButtonPressed:(id)sender;
...
@end
popover视图控制器.m文件
#import "PopOverContentVC.h"
#import "CCViewController.h"
@interface PopOverContentVC ()
@property (strong, nonatomic) UIBarButtonItem *doneButton;
@end
@implementation PopOverContentVC
@synthesize delegate;
...
- (void) viewDidLoad {
...
self.doneButton = [[UIBarButtonItem alloc] initWithTitle:@"Done" style:UIBarButtonItemStyleDone target:self action:@selector(doneButtonPressed:)];
...
}
- (void) doneButtonPressed:(id)sender {
[self.delegate dismissPopOverContentVC];
}
我已经跟着NSLog完成了所有步骤,一切顺利,直到我按下完成按钮[self.delegate dismissPopOverContentVC];没有执行,因此我没有到主视图控制器执行dismissPopOverContentVC方法来解除popupview控制器。我做错了什么或者我错过了什么?
提前感谢您的任何提示。
答案 0 :(得分:2)
我不认为您正在设置delegate
对象的PopOverContentVC
- 您只需设置delegate
的{{1}}。在UIPopoverController
添加
popoverSetup
创建content.delegate = self;
。