在 UIPanGestureRecognizer 中的 ImageView 中更改图像？答案

【问题标题】：Change Image in ImageView within UIPanGestureRecognizer?在 UIPanGestureRecognizer 中的 ImageView 中更改图像？
【发布时间】：2013-11-06 07:06:26
【问题描述】：

我有一个 ImageView 和数组中的图像 URL。我想在 UIImageView 上下载并显示这些图像，但是发出这个我在该视图上面临两个手势的问题，因此仅在 ImageView 上的内部手势不希望工作。

我的代码如下所示

  [self.imageView setUserInteractionEnabled:YES];


            UISwipeGestureRecognizer *swipeLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:)];
            UISwipeGestureRecognizer *swipeRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:)];

            // Setting the swipe direction.
            [swipeLeft setDirection:UISwipeGestureRecognizerDirectionLeft];
            [swipeRight setDirection:UISwipeGestureRecognizerDirectionRight];

            // Adding the swipe gesture on image view
            [self.imageView addGestureRecognizer:swipeLeft];
            [self.imageView addGestureRecognizer:swipeRight];





- (void)handleSwipe:(UISwipeGestureRecognizer *)swipe {

    if (swipe.direction == UISwipeGestureRecognizerDirectionLeft) {
        NSLog(@"Left Swipe");

    }
    if (swipe.direction == UISwipeGestureRecognizerDirectionRight) {
        NSLog(@"Right Swipe");

    }
}

handleSwipe 方法没有被调用，当我移动它时也会打开侧边菜单，因为手势应用与在其 iOS 应用中打开的 facebook 侧边菜单相同。

当整个父视图也使用 Gesture 时，如何更改 ImageView 中的图像。

谢谢

【问题讨论】：

标签： ios objective-c uiimageview uigesturerecognizer

【解决方案1】：

试试这个。它解决了两个 ypur 问题

[self.imageView setUserInteractionEnabled:YES];


        UISwipeGestureRecognizer *swipeLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleLeftSwipe)];
        UISwipeGestureRecognizer *swipeRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleRightSwipe)];

        // Setting the swipe direction.
        [swipeLeft setDirection:UISwipeGestureRecognizerDirectionLeft];
        [swipeRight setDirection:UISwipeGestureRecognizerDirectionRight];

        // Adding the swipe gesture on image view
        [self.imageView addGestureRecognizer:swipeLeft];
        [self.imageView addGestureRecognizer:swipeRight];





- (void)handleLeftSwipe
{
    NSLog(@"Left Swipe");
}

- (void)handleRightSwipe
{
    NSLog(@"Left Swipe");
}

【讨论】：