Question

我刚刚发布了我的移动应用程序的新版本，一切似乎都很顺利，但我在其中一个表格视图中遇到了一个奇怪的崩溃。此崩溃发生在不同的设备（iPhone 7，iPhone 5s等）和不同的iOS版本（iOS 10，iOS 11等）上。我试图发现一些内存泄漏或僵尸没有运气。这是我从Crashlytics收到的崩溃报告（此漏洞影响了0.44％的用户）。

#0. Crashed: com.apple.main-thread
0  App                            0x1024d8d40 specialized ResultsViewController.tableView(UITableView, cellForRowAt : IndexPath) -> UITableViewCell (ResultsViewController.swift)
1  App                            0x1024d06e4 @objc ResultsViewController.tableView(UITableView, cellForRowAt : IndexPath) -> UITableViewCell (ResultsViewController.swift)
2  UIKit                          0x18dbcd474 -[UITableView _createPreparedCellForGlobalRow:withIndexPath:willDisplay:] + 668
3  UIKit                          0x18dbcd9d8 -[UITableView _createPreparedCellForGlobalRow:willDisplay:] + 80
4  UIKit                          0x18dbad670 -[UITableView _updateVisibleCellsNow:isRecursive:] + 2140
5  UIKit                          0x18d968f10 -[UITableView layoutSubviews] + 140
6  UIKit                          0x18d895000 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 1256
7  QuartzCore                     0x1884650b4 -[CALayer layoutSublayers] + 184
8  QuartzCore                     0x188469194 CA::Layer::layout_if_needed(CA::Transaction*) + 332
9  QuartzCore                     0x1883d7f24 CA::Context::commit_transaction(CA::Transaction*) + 336
10 QuartzCore                     0x1883fe340 CA::Transaction::commit() + 540
11 QuartzCore                     0x1883ff180 CA::Transaction::observer_callback(__CFRunLoopObserver*, unsigned long, void*) + 92
12 CoreFoundation                 0x18442f8b8 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 32
13 CoreFoundation                 0x18442d270 __CFRunLoopDoObservers + 412
14 CoreFoundation                 0x18442d82c __CFRunLoopRun + 1292
15 CoreFoundation                 0x18434e2d8 CFRunLoopRunSpecific + 436
16 GraphicsServices               0x1861dff84 GSEventRunModal + 100
17 UIKit                          0x18d8fb880 UIApplicationMain + 208
18 App                            0x1024614e4 main (AppDelegate.swift:15)
19 libdyld.dylib                  0x183e7256c start + 4

只有一个报告有另外一行：

1  App                        0xbca7c specialized ResultsViewController.tableView(UITableView, cellForRowAt : IndexPath) -> UITableViewCell (ResultsViewController.swift:587)

这是我的cellForRowAt方法：

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    if isResultsEmpty && indexPath.section == itinerariesIndex {
        let cell = tableView.dequeueReusableCell(withIdentifier: "ShimmerCell", for: indexPath) as! ShimmerCell
        if bookmark != nil {
            cell.setup(true) // start shimmering
        }
        return cell
    }

    let cell = tableView.dequeueReusableCell(withIdentifier: "\(cellIdentifier)\(cellTypeIdentifier)Cell", for: indexPath) as! RoundTripCell
    cell.delegate = self
    let itinerary: Itinerary = self.dataSource[indexPath.section].getSectionItineraries()[indexPath.row] // line 587
    if let _ = bookmark, indexPath.section == bookmarksIndex {
        cell.setup(true, founded: self.founded) // start animation
    } else {
        cell.setup(false, founded: false) // stop animation
    }

    DispatchQueue.main.async {
        let depTrip = itinerary.getTrips()[0]

        cell.depOtaLogo.sd_setImage(with: URL(string: (depTrip.carrierMediumLogo)), placeholderImage: nil)
        cell.depTimeLabel.text = depTrip.getDepartureArrivalTime()
        cell.depDelay.text = depTrip.getDelayString()
        cell.depIataLabel.text = depTrip.departureArrivalIATAString
        cell.depStopLabel.text = depTrip.stopsString
        cell.depDurationLabel.text = depTrip.getDurationString()

        if self.searchParameters.tripType == .ROUND_TRIP {
            let arrTrip = itinerary.getTrips()[1]

            cell.arrOtaLogo.sd_setImage(with: URL(string: (arrTrip.carrierMediumLogo)), placeholderImage: nil)
            cell.arrTimeLabel.text = arrTrip.getDepartureArrivalTime()
            cell.arrDelay.text = arrTrip.getDelayString()
            cell.arrIataLabel.text = arrTrip.departureArrivalIATAString
            cell.arrStopLabel.text = arrTrip.stopsString
            cell.arrDurationLabel.text = arrTrip.getDurationString()
        }

        cell.priceButton.tag = indexPath.row
        let buttonTitle = (indexPath.section == self.bookmarksIndex && !self.founded) ? "" : itinerary.getOffers()[0].price + self.offlineSymbol
        cell.priceButton.setTitle(buttonTitle, for: .normal)
        cell.priceButton.isUserInteractionEnabled = false
        if self.searchParameters.isOfflineSelected() {
            cell.priceButton.isEnabled = false
         } else {
            cell.priceButton.isEnabled = true
        }
    }

    return cell
}

我试图重现这种崩溃而没有运气。

UITableView与＆＃34; EXC_BREAKPOINT＆＃34;崩溃

0 个答案: