如何從另一個viewcontroller關閉UIPopoverController？

Question

我創建了一個UIPopoverController，並在單擊setReminder按鈕popoverView時正常工作，將它添加到主視圖控制器。我想解散popupview，如果我點擊保存按鈕，我該怎麼辦？

**mainView.m** 
-(void)btnSetReminderTapped:(id)sender 
{ 
setReminderView =[[setReminder alloc]initWithNibName:@"setReminder" bundle:[NSBundle mainBundle]]; 

setReminderView.delegate = self; 
FPPopoverController *popover = [[FPPopoverController alloc] initWithViewController:setReminderView]; 
popover.tint = FPPopoverDefaultTint; 

if(UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) 
{ 
    popover.contentSize = CGSizeMake(400,400); 
} 
else { 
    popover.contentSize = CGSizeMake(320, 288); 
} 
popover.arrowDirection = FPPopoverArrowDirectionUp; 

//sender is the UIButton view 
[popover presentPopoverFromView:sender]; 
} 

    ***setReminder.m*** 

- (IBAction) btnSaveTapped:(id) sender 
{ 

} 

Answer 1

使用委託，通知上btnSave行動你的主要觀點，並在該委託解僱。

@protocol EventDelegate <NSObject> 

- evenSaveButtonClicked; 

@end 

在您的主視圖控制器實現它作爲

- (void) eventSaveButtonClicked{ 
    [popover dissmissPopoverAnimated:YES]; 
} 

-(void)btnSetReminderTapped:(id)sender 
{ 
setReminderView =[[setReminder alloc]initWithNibName:@"setReminder" bundle:[NSBundle mainBundle]]; 
setReminder.delegate = self; 
setReminderView.delegate = self; 
FPPopoverController *popover = [[FPPopoverController alloc] initWithViewController:setReminderView]; 
popover.tint = FPPopoverDefaultTint; 

if(UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) 
{ 
    popover.contentSize = CGSizeMake(400,400); 
} 
else { 
    popover.contentSize = CGSizeMake(320, 288); 
} 
popover.arrowDirection = FPPopoverArrowDirectionUp; 

//sender is the UIButton view 
[popover presentPopoverFromView:sender]; 
} 

你必須創建SetReminder類

@interface SetReminder 

@property(nonatomic, unsafe_unretain) id<EventDelegate> delegate 

@end 

（.M）內，在實現文件的委託，你可以依達拉奉它如下

@implementation SetReminder 
@synthesis delegate 

// Your button save code 
- (IBAction) btnSaveTapped:(id) sender 
    { 
     if([delegate respondToSelector:@selector(eventSaveButtonClicked)]){ 
      [delegate eventSaveButtonClicked]; 
     } 
    } 

@end