UIViewAnimationOptionAllowUserInteraction不起作用

問題是這樣的：我有NKIngredient這是UIImageView的一個子類。我已經在其中實施了touchesBegan/Moved/Ended方法，並在YES上設置了userInteractionEnabled。但主要問題是，當我在視圖控制器中動畫我的NKIngredient實例時，我需要在動畫期間可以觸摸該對象。這是不可能的！的NKIngredient接口：UIViewAnimationOptionAllowUserInteraction不起作用

@protocol NKIngredientDelegate <NSObject> 

- (void)ingredientTouched; 

@end 

@interface NKIngredient : UIImageView { 
    CGPoint touchStart; 

} 

@property (weak, nonatomic) id <NKIngredientDelegate> delegate; 

- (void)animate:(void (^)(void))animationBlock; 

@end

實現文件：

@implementation NKIngredient 

- (id)initWithFrame:(CGRect)frame { 
    self = [super initWithFrame:frame]; 
    if (self) { 
     [self setUserInteractionEnabled:YES]; 
    } 
    return self; 
} 

//Viene chiamato questo metodo se l'oggetto è disegnato come nib 
- (id)initWithCoder:(NSCoder *)aDecoder { 
    NSLog(@"NKIngredient initWithCoder"); 
    if (self = [super initWithCoder:aDecoder]) { 
     [self setUserInteractionEnabled:YES]; 
    } 
    return self; 
} 

/* 
// Only override drawRect: if you perform custom drawing. 
// An empty implementation adversely affects performance during animation. 
- (void)drawRect:(CGRect)rect 
{ 
    // Drawing code 
} 
*/ 

- (BOOL)becomeFirstResponder { 
    return YES; 
} 

- (void)animate:(void (^)(void))animationBlock { 
    [UIView animateWithDuration:8.0 delay:0.0 options:UIViewAnimationOptionAllowAnimatedContent & UIViewAnimationOptionAllowUserInteraction animations:animationBlock completion:^ (BOOL finished) { 
     NSLog(@"Completed"); 
    }]; 
} 

#pragma mark - Touch interaction 

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { 
    //NSLog(@"Touches began"); 
    [_delegate ingredientTouched]; 
    touchStart = [[touches anyObject] locationInView:self]; 
    NSLog(@"Touched"); 
} 

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { 
    NSLog(@"Touches moved"); 
    CGPoint point = [[touches anyObject] locationInView:self]; 
    self.center = CGPointMake(self.center.x + point.x - touchStart.x, self.center.y + point.y - touchStart.y); 
} 

@end

這是我在我的視圖控制器做：

ingredient = [[NKIngredient alloc] initWithFrame:CGRectMake(20, -50, 34, 45)]; 
    [ingredient setImage:[UIImage imageNamed:@"liv1_Burro.png"]]; 
    [ingredient setUserInteractionEnabled:YES]; 
    [[self view] addSubview:ingredient]; 


    [ingredient animate:^ (void) { 
     [ingredient setFrame:CGRectMake(20, 200, 34, 45)]; 
    }];

一些解決方案，使觸摸即使對象是動畫？因爲當NKIngredient是靜止的，touchesBegan/Moved/Ended方法的作品。

來源

2012-11-05 Andrea Mario Lufino

這是什麼版本的iOS上運行？ –

你可以嘗試UIGestureRecognizer類。 –

我正在使用iOS 6. UIGestureRecognizer是一個很好的解決方案，但我需要移動該對象。所以，用戶可以拖動對象。是否可以使用UIGestureRecognizer？ @Ishank –

必須按位或標誌一起，不和......

UIViewAnimationOptionAllowAnimatedContent & UIViewAnimationOptionAllowUserInteraction

應該

UIViewAnimationOptionAllowAnimatedContent | UIViewAnimationOptionAllowUserInteraction

否則會相互抵消。此外，我注意到動畫觸摸只註冊動畫將完成的點...

來源

2012-11-05 12:11:57 jjv360

好抓人... –

好的，改了。但情況並未改變。如果我在UIViewController類中使用touchesBegan代碼，它可以工作。但我需要在NKIngredient類，UIImageView的子類中實現它 –

UIViewAnimationOptionAllowUserInteraction不起作用

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