Question

我在表格单元格中有一个<script src="https://maps.googleapis.com/maps/api/js?v=3"></script> <div id="map"></div>，我添加了一个tapGesture。我想访问handleTap方法中的UIImageView。

这是TableCell中Image的代码：

UIImageView

我想我必须从func setImageForCell(cell:ImageCell, indexPath:NSIndexPath) { var image : UIImage = UIImage(named: "brunnen1")! cell.customImageView.userInteractionEnabled = true cell.imageView!.tag = indexPath.row; var tapGestureRecognizer = UITapGestureRecognizer(target:self, action:Selector("handleTap:")) tapGestureRecognizer.numberOfTapsRequired = 1; cell.customImageView.addGestureRecognizer(tapGestureRecognizer) cell.customImageView.image = image } func handleTap(sender : UIView) { // get the UIImageview from the sender, i guess ? }投出来吗？

Answer 1

试试这段代码。

func handleTap(sender : UITapGestureRecognizer) {
    let imgView = sender.view as! UIImageView
    // Do something.
}

由于您使用的是手势识别器，handleTap的发件人将为UITapGestureRecognizer。手势识别器具有您想要的功能。

var view: UIView? { get } //手势附加到的视图。通过使用addGestureRecognizer：方法
将识别器添加到UIView来设置

Answer 2

不，sender是UITapGestureRecognizer而不是UIView。你应该这样做：

func handleTap(sender : UITapGestureRecognizer) {
    let imageView = sender.view as! UIImageView
}

在swift中从发件人那里获取UIImage

2 个答案: