UIPopoverController不會在iOS 8/Xcode 6中失效

在iOS 7中運行良好的應用程序包含一個UIPopoverController，當用戶在其外部使用時，該應用程序將被解散。UIPopoverController不會在iOS 8/Xcode 6中失效

UIPopoverController *myPopover = [[UIPopoverController alloc] initWithContentViewController:_myVC]; 
myPopover.popoverContentSize = CGSizeMake(300.0, 600.0); 
[myPopover presentPopoverFromRect:sender.frame inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];

當我在iOS 8的運行我的應用程序，也沒有崩潰，但是當我試圖通過敲擊外面從酥料餅的退出，會出現讀數錯誤消息：

attempt to dismiss modal view controller whose view does not currently appear.

控制檯還告訴我：modalViewController = _myVC ...

我無法在iOS 8中跳過我的popover！

任何想法？

UPDATE W/_myVC代碼：

@protocol MyVCDelegate <NSObject> 
@optional 
- (void)myVCDoneProc:(NSURL *)sender; 
- (void)calculateFileLengthConvolve; 
- (void)checkConvolveTime; 
@end 

@interface MyVC: UIViewController <FirstDelegate, SecondDelegate> 
{ 
    UIImageView     *mDimView; 
    UIActivityIndicatorView  *mSpinner; 
    IBOutlet UISlider   *mMixSlider; 
    IBOutlet UILabel   *mTimeWarningLabel; 
    IBOutlet UIButton   *mButton; 
} 

@property (nonatomic, weak) AudioFilesViewController *AFVC; 
@property (nonatomic, strong) IBOutlet UIView *view; 
@property (nonatomic, assign) id<UnivConvolutionViewControllerDelegate>delegate; 
@property NSString *filePath; 


- (void)calculateFileLength; 
- (IBAction)process; 
- (IBAction)play:(UIButton *)sender; 
- (IBAction)stop:(UIButton *)sender; 
- (void)checkConvolveTime; 

@end 

@interface myVC() <UITableViewDelegate, UITableViewDataSource> 
@end 
@implementation myVC 
{ 
    IBOutlet UITableView  *mImpulsesTableView; 
    NSArray      *mImpulses; 
    NSString     *irPath; 
    NSArray      *userImpulses; 
} 

@synthesize AFVC = _AFVC; 
@synthesize view; 
@synthesize delegate; 
@synthesize filePath = mFilePath; 

- (void)init { 
    if(self = [super init]) { 
     [[NSBundle mainBundle] loadNibNamed:@"MyVC" owner:self options:nil]; 

     // create mImpulses 
     // set button titles and font, other init... etc. 

    } 
} 

#pragma mark behavior - class methods 
// The only view code is in: 
- (void)process { 
     if (mDimView == nil) { 
     mDimView = [[UIImageView alloc] initWithImage:[DimmingImage dimmingImageWithSize:self.view.bounds.size]]; 
     mDimView.userInteractionEnabled = YES; 
     mSpinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge]; 
     mSpinner.hidesWhenStopped = YES; 
     [mDimView addSubview:mSpinner]; 
     mSpinner.center = CGPointMake(mDimView.bounds.size.width/2.0f, 
             mDimView.bounds.size.height/2.0f); 
    } 

    mDimView.alpha = 0.0f; 
    [self.view addSubview:mDimView]; 
    [UIView animateWithDuration:0.35f animations:^{ 
     mDimView.alpha = 0.7f; 

    } completion:^(BOOL finished) { 
     [mSpinner startAnimating]; 
    }]; 
} 

#pragma mark FirstDelegate & Second Delegate 

// FirstDelegate method to remove subviews when processing is complete 
- (void)hideActivityView 
{ 
    dispatch_async(dispatch_get_main_queue(), ^{ 

     [mSpinner stopAnimating]; 
     [UIView animateWithDuration:0.35f animations:^{ 
     mDimView.alpha = 0.0f; 

    } completion:^(BOOL finished) { 
     [mDimView removeFromSuperview]; 
     }]; 
    }); 
} 

#pragma mark UITableViewDelegate & DataSource 

#pragma mark 

@end

來源

2014-09-30 DanMoore

'_myVC'的生命週期是什麼？它是否不止一次出現？ – 2014-09-30 14:48:21

_myVC只創建一次，使用一個xib--其視圖出口在文件的所有者中設置。這是每次我推UIButton - 上面的代碼是運行 – DanMoore 2014-09-30 14:54:01

您可以顯示該代碼？我懷疑視圖控制器中的某些東西正在愚弄popover。 – 2014-09-30 15:00:15

我面臨着一些問題模式的介紹。我正在做的錯誤是在viewDidLoad中以模態方式呈現它。您可以嘗試在viewDidAppear中呈現它。這解決了我的情況下的問題。

來源

2015-03-01 11:33:47

UIPopoverController不會在iOS 8/Xcode 6中失效

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