ios - 没有设置触摸手势，但tabBar只响应长按。为什么？

Question

我有一个 View ，顶部有一个 tabBar，下面是一个 tableView。 tableView 具有受其限制的触摸手势(点击、双击和平移手势)。但是，tabBar 没有安装触摸手势，仅响应长按触摸。

一些有用的信息:- tabBar委托(delegate)被设置为self

仅 tabBar 代码:

func tabBar(_ tabBar: UITabBar, didSelect item: UITabBarItem) {
    if item.tag == 101 { //tag number of first tab bar item
        print("tableView")
    }
    if item.tag == 102 { //tag number of second tab bar item
        print("collectionView") //going to add collection view eventually
    }
}

任何帮助将不胜感激。谢谢!

Answer 1

由于我无法弄清楚(它可能与它下面的 tableView 内容有关)，我决定使用触摸手势来解决问题:

@IBOutlet weak var tabBar: UITabBar!

override func viewDidLoad() {
    let tabBarTap = UITapGestureRecognizer(target: self, action: #selector(MyViewController.switchSelectedTabItem(tapGestureRecognizer:)))
    tabBarTap.delegate = self
    tabBarTap.numberOfTapsRequired = 1
    tabBarTap.numberOfTouchesRequired = 1
    tabBar.addGestureRecognizer(tabBarTap)
}

@objc func switchSelectedTabItem(tapGestureRecognizer: UITapGestureRecognizer) {
    let touchPoint = tapGestureRecognizer.location(in: self.view)
    let split = tabBar.frame.width/2    //because i have two tab bar items. divide it by how many tab bar items you have
    if touchPoint.x > split {           //again, since i have two tab bar items, i can just divide the location of the tap into two sections (tab bar item 1 and tab bar item 2)
        tabBar.selectedItem = tabBar.items?[1]
        //run code for when second item is selected
    } else {
        tabBar.selectedItem = tabBar.items?[0]
        //run code for when second item is selected
    }
}