【发布时间】:2018-10-26 16:09:45
【问题描述】:
在我的应用程序中,我使用 Tab Bar 控制器在视图控制器之间切换,并且在每个视图控制器上我使用集合视图然后转到不同的页面。当我在计算机上运行该应用程序时,一切正常。问题是当我在手机上运行该应用程序时。每当我单击选项卡栏控制器中的选项卡时,该选项卡会转到带有集合视图控制器的页面,应用程序会冻结然后崩溃。我认为我已将问题缩小到集合视图控制器,因为当没有集合视图控制器时,我手机上的应用程序不会崩溃。它仅在使用集合视图控制器时崩溃。这可能是什么原因造成的?我看过,但没有发现任何类似的问题。
这是其中一个集合视图控制器的代码:
import UIKit
class HighSchoolController: UIViewController, \UICollectionViewDataSource, UICollectionViewDelegate {
var identities = [String]()
let hsImage: [UIImage] = [
UIImage(named: "dates")!,
UIImage(named: "athletics_icon")!,
UIImage(named: "interm-1")!,
UIImage(named: "lunch_icon")!,
UIImage(named: "pioneerpress")!,
UIImage(named: "PIONEERNEWS")!,
UIImage(named: "clubs_icon")!,
UIImage(named: "contact_icon")!
]
override func viewDidLoad() {
super.viewDidLoad()
identities = ["events", "athletics", "da", "lunch", "pioneer press", "pioneer news", "clubs", "contact"]
//Navigationbar Shadow
self.navigationController?.navigationBar.layer.shadowColor = UIColor.black.cgColor
self.navigationController?.navigationBar.layer.shadowOffset = CGSize(width: 0.0, height: 4.0)
self.navigationController?.navigationBar.layer.shadowRadius = 9.0
self.navigationController?.navigationBar.layer.shadowOpacity = 0.9
self.navigationController?.navigationBar.layer.masksToBounds = false
// Do any additional setup after loading the view.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return hsImage.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let hsCell = collectionView.dequeueReusableCell(withReuseIdentifier: "hsCell", for: indexPath) as! HighSchoolCell
hsCell.hsImage.image = hsImage[indexPath.item]
hsCell.layer.cornerRadius = (hsCell.layer.frame.height) / 2.0;
hsCell.layer.masksToBounds = true
return hsCell
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let vcName = identities[indexPath.row]
let viewController = storyboard?.instantiateViewController(withIdentifier: vcName)
self.navigationController?.pushViewController(viewController!, animated: true)
}
}
【问题讨论】:
-
附上崩溃日志
标签: ios xcode uicollectionview uitabbarcontroller