ios - 将 UITapGestureRecognizer 添加到动态添加的 View

Question

我在将 tapRecognizers 添加到我的 View 时遇到一些问题。我向我的 UIScrollView 添加了未知数量的事件、新闻和优惠券，单击后我想打开详细 View 。但是，单击后应用程序崩溃并出现以下错误

Almhults_appen.MainActivity redirectFromHomeScreen:]: unrecognized selector sent to instance 0x7f93c2d4df20

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[Almhults_appen.MainActivity redirectFromHomeScreen:]: 

正如我所见，我可以利用 UITableView 并将所有 View 添加到其中。然而，如果可能的话，我个人希望避免它，但由于我是 Swift 的新手，我不相信自己的判断。

if (!event_ar.isEmpty) {
    for event: Event in event_ar {

        ... Init EventView and add to UIScrollView

        // Add tapGesture
        let tapGesture: UITapGestureRecognizer = UITapGestureRecognizer(
            target: self,
            action: "redirectFromHomeScreen:"
        )
        eventView.addGestureRecognizer(tapGesture)
    }
}
if (!news_ar.isEmpty) {
    ... Add news identically to events
}
if (!coupon_ar.isEmpty) {
    ... Add coupons identically to events
}

编辑添加的 Action 功能

private func redirectFromHomeScreen(sender: UITapGestureRecognizer) -> Void{
    ... Do stuff
}

提前致谢:)

Answer 1

根据你的崩溃报告..首先你需要声明函数

func redirectFromHomeScreen (sender : UITapGestureRecognizer){

}

声明这一点并重试