相关疑难解决方法(0)

我将UISwipeGestureRecognizer和UITapGestureRecognizer添加到视图控制器的viewDidLoad方法中的视图中.

- (void)viewDidLoad {
        [super viewDidLoad];
        [self.view addGestureRecognizer:[[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(cardSwipe:)]];
        [self.view addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(cardTap:)]];
    }
- (void)cardSwipe:(UISwipeGestureRecognizer *)sender {
    //get the card. set faceUp to false.
    CGPoint location =  [sender locationInView:sender.view];
    NSIndexPath *cellIndex = [self.cardCollectionView indexPathForItemAtPoint:location];
    if(cellIndex){
        UICollectionViewCell *cell = [self collectionView:self.cardCollectionView cellForItemAtIndexPath:cellIndex];
        if(cell && [cell isKindOfClass:[CardCollectionViewCell class]]){
            [[((CardCollectionViewCell *)cell) cardView] handleCardSwipe];
        }
    }
}
- (void)cardTap:(UITapGestureRecognizer *)sender {
    //get the card. set faceUp to false.
    CGPoint location =  [sender locationInView:sender.view];
    NSIndexPath *cellIndex = [self.cardCollectionView indexPathForItemAtPoint:location];
    if(cellIndex){
        UICollectionViewCell …