数组中的 UIImage 幻灯片

Question

使用这个 Github 扩展从 URL 设置图像：https://github.com/Haneke/HanekeSwift

我将图像存储在这样的数组中：

var userFile = [PFFile]()

图像存储为 URL，我将图像设置在 UIImageView 中，如下所示：

imageView.hnk_setImageFromURL(NSURL(string: userFile[indexPath.row].url!)!, placeholder: nil, format: nil, failure: nil, success: nil)

如何在同一个UIImageView 中显示所有图像，但要查看下一张照片，我必须点按UIImageView？

Answer 1

这是 Obj-c 示例如何做到这一点。在swift中它非常相似。

为您的图像视图添加手势（点击）识别器：

UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapped:)];
[self.yourImageView addGestureRecognizer:tap];

然后点击：

- (void)tapped:(UIGestureRecognizer*)sender
{
    UIImageView* yourImageView = (UIImageView*)[sender view]; // touch is detected on the imageView

    yourImageView.image = // your image from url
}

斯威夫特：

// setup gesture recognizer somewhere in the viewDidLoad:

let tap = UITapGestureRecognizer(target: self, action: #selector(handleTap))

 yourImageView.addGestureRecognizer(tap)

// this function will be called on tap
func handleTap(gestureRecognizer: UIGestureRecognizer)
{
    let tappedView = gestureRecognizer.view as! UIImageView
    tappedView.image = // add the image needed here
}