在iOS11中快速连续滑动删除UITableView的单元格会崩溃
在iOS11中快速连续滑动删除UITableView的单元格会崩溃
提问于 2017-08-29 10:54:43
问题就像标题一样。这是我的代码。我发现从右向左滑动直接删除的操作是iOS11中的新功能
let model = self.customRules.remove(at: indexPath.row) //delete datasource
self.dao.delete(model: model) //delete data in database
tableView.beginUpdates() //still crash no matter the line exists or not
tableView.deleteRows(at: [indexPath], with: .left) //delete cell view
tableView.endUpdates()这是崩溃日志。
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'UITableView internal inconsistency: the _swipedIndexPath cannot be nil if the swipe to delete row is being deleted in _updateRowsAtIndexPaths:withUpdateAction:rowAnimation:usingPresentationValues:'
Last Exception Backtrace:
0 CoreFoundation 0x000000018710fd50 <redacted> + 148
1 libobjc.A.dylib 0x0000000186624528 objc_exception_throw + 56
2 CoreFoundation 0x000000018710fc0c <redacted> + 0
3 Foundation 0x0000000187a9bb44 <redacted> + 112
4 UIKit 0x00000001907c52b8 <redacted> + 648
5 UIKit 0x00000001906819e4 <redacted> + 140
......回答 2
Stack Overflow用户
发布于 2017-08-29 11:00:30
您的代码看起来没问题，但是Xcode9中有一个删除单元格的bug。如果您在Xcode8中尝试您的代码，它可能会工作。查看this answer了解更多信息。
Stack Overflow用户
发布于 2017-09-12 21:24:58
试着用我的例子。
class ViewController: UIViewController {
@IBOutlet weak var tableView: UITableView!
var data = ["Byba", "Boba", "Gent", "Xpa", "zc", "123", "swipe", "gen", "sw", "xcas", "kjs", "908"]
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
// MARK: - UITableViewDelegate
extension ViewController: UITableViewDelegate {
func tableView(_ tableView: UITableView, titleForDeleteConfirmationButtonForRowAt indexPath: IndexPath) -> String? {
return "delete"
}
func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
return true
}
func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
if editingStyle == .delete {
tableView.beginUpdates()
data.remove(at: indexPath.row)
tableView.deleteRows(at: [indexPath], with: .left)
tableView.endUpdates()
}
}
}
// MARK: - UITableViewDataSource
extension ViewController: UITableViewDataSource {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return data.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = UITableViewCell()
let item = data[indexPath.row]
cell.textLabel?.text = item
return cell
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/45930031
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