IOS App Crash仅在Release模式下？答案

【问题标题】：IOS App Crash's only in Release mode?IOS App Crash仅在Release模式下？
【发布时间】：2016-10-20 17:03:25
【问题描述】：

我的 IOS 应用程序在调试模式下正常工作，提交后被苹果审核团队（IPV6 连接 ....etc）拒绝我已经为发布模式生成 .ipa 文件以测试我的应用程序是否有一个真正的崩溃问题，我发现它真的像他们提到的那样崩溃。

注意：崩溃问题不是由 IPV6 引起的，因为它在 IPV4 上也会崩溃

首先我想知道为什么在调试模式下没有发生这种崩溃？？其次，在挖掘了 2 天之后，直到现在我还没有弄清楚我的应用程序崩溃问题的主要原因是什么？？

这是我的代码：

import UIKit
import SDWebImage


class Codingtbl: UITableViewController {

    @IBOutlet var imgtbl: UITableView!


    var imgarray = [Images]()

    let backendless = Backendless()

    override func viewDidLoad() {
        super.viewDidLoad()

       imgtbl.delegate=self
        imgtbl.dataSource=self

    }

    override func viewDidAppear(_ animated: Bool) {

        loaddatawithquery()

    }
    override func numberOfSections(in tableView: UITableView) -> Int {
        // #warning Incomplete implementation, return the number of sections
        return 1
    }

    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        // #warning Incomplete implementation, return the number of rows
        return imgarray.count
    }


    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

        if  let cell = self.imgtbl.dequeueReusableCell(withIdentifier: "csmcell") as! csmcell{
            let imgurl = URL(string : self.imgarray [(indexPath as NSIndexPath).row].imgurl!)
            cell.imgiv.sd_setImage(with: imgurl)

            return cell
        }else{
            let cell = csmcell()
            let imgurl = URL(string : self.imgarray [(indexPath as NSIndexPath).row].imgurl!)
            cell.imgiv.sd_setImage(with: imgurl)
            return cell
    }

}
    func loaddatawithquery(){

        let whereClause = "catogary ='telecom'"
        let dataQuery = BackendlessDataQuery()
        dataQuery.queryOptions.pageSize=50
        dataQuery.whereClause = whereClause
        backendless.data.of(Images.ofClass()).find(dataQuery,response: {(result: BackendlessCollection?) -> Void in
            let data = result?.getCurrentPage() as! [Images]

            for obj in data {

                self.imgarray.append(obj)

            }
            self.imgtbl.reloadData()

            },
          error: { (fault: Fault?) -> Void in
          let alert = UIAlertController(title: "info", message:"Please connect to the internet", preferredStyle: .alert)
          alert.addAction(UIAlertAction(title: "OK", style: .default) { _ in
            let viewController = self.storyboard?.instantiateViewController(withIdentifier: "mainmenu") as! Main_Menu
            self.navigationController?.pushViewController(viewController, animated: true)
          })
         self.present(alert, animated: true){}


        })
    }
}

和崩溃报告：

Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note:  EXC_CORPSE_NOTIFY
Triggered by Thread:  0

Application Specific Information:
abort() called

Filtered syslog:
None found

Thread 0 name:  Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0   libsystem_kernel.dylib          0x000000018d83a014 __pthread_kill + 8
1   libsystem_pthread.dylib         0x000000018d901460 pthread_kill + 112
2   libsystem_c.dylib               0x000000018d7ae3f4 abort + 140
3   libswiftCore.dylib              0x00000001004e7570 swift_deletedMethodError (__hidden#17462_:282)
4   libswiftCore.dylib              0x00000001004ccfdc _hidden#16819_ (__hidden#16861_:392)
5   libswiftCore.dylib              0x00000001004cd06c swift_dynamicCastClass (__hidden#16861_:478)
6   libswiftCore.dylib              0x00000001004cdbd0 swift_dynamicCastUnknownClassUnconditional (__hidden#16793_:49)
7   libswiftCore.dylib              0x00000001004d00a4 _hidden#16825_ (__hidden#16861_:1637)
8   libswiftCore.dylib              0x00000001004cec6c swift_dynamicCast (__hidden#16861_:1676)
9   libswiftCore.dylib              0x00000001004cefb8 swift_dynamicCast (__hidden#16861_:1684)
10  Horizon Wave                    0x00000001000ca15c _hidden#659_ (__hidden#722_:0)
11  Horizon Wave                    0x00000001000caaf8 _hidden#664_ (__hidden#722_:0)
12  Horizon Wave                    0x00000001000cafb4 _hidden#667_ (__hidden#722_:0)
13  Horizon Wave                    0x00000001000cb868 _hidden#672_ (__hidden#722_:0)
14  Horizon Wave                    0x00000001000f88c4 _hidden#3021_ (__hidden#3052_:302)
15  Horizon Wave                    0x00000001000f8364 _hidden#3011_ (__hidden#3052_:208)
16  Horizon Wave                    0x00000001000f8388 _hidden#3011_ (__hidden#3052_:214)
17  Horizon Wave                    0x00000001000cdbb4 _hidden#1017_ (__hidden#1060_:290)
18  libdispatch.dylib               0x000000018d6f5200 _dispatch_call_block_and_release + 24
19  libdispatch.dylib               0x000000018d6f51c0 _dispatch_client_callout + 16
20  libdispatch.dylib               0x000000018d6f9d6c _dispatch_main_queue_callback_4CF + 1000
21  CoreFoundation                  0x000000018e819f2c __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12
22  CoreFoundation                  0x000000018e817b18 __CFRunLoopRun + 1660
23  CoreFoundation                  0x000000018e746048 CFRunLoopRunSpecific + 444
24  GraphicsServices                0x00000001901c9198 GSEventRunModal + 180
25  UIKit                           0x0000000194720628 -[UIApplication _run] + 684
26  UIKit                           0x000000019471b360 UIApplicationMain + 208
27  Horizon Wave                    0x00000001000c4768 main (__hidden#180_:12)
28  libdyld.dylib                   0x000000018d7285b8 start + 4

更新我只将 loaddata 函数更改为

 func loaddata2() {

        let whereClause = "catogary ='telecom'"
        let dataQuery = BackendlessDataQuery()
        dataQuery.whereClause = whereClause

        var error: Fault?
        let bc = Backendless.sharedInstance().data.of(Images.ofClass()).find(dataQuery, fault: &error)
        if error == nil {
            for obj in bc?.data as! [Images]{

                imgarray.append(obj)
                print("%%%%%%%%%%%%%%%%%%%\(obj.imgurl!)")

            }
            self.imgtbl.reloadData()
        }
        else {
            print("Server reported an error: \(error)")
        }

崩溃报告如下变化！！

Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note:  EXC_CORPSE_NOTIFY
Triggered by Thread:  0

Application Specific Information:
abort() called

Filtered syslog:
None found

Thread 0 name:  Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0   libsystem_kernel.dylib          0x000000018d83a014 __pthread_kill + 8
1   libsystem_pthread.dylib         0x000000018d901460 pthread_kill + 112
2   libsystem_c.dylib               0x000000018d7ae3f4 abort + 140
3   libswiftCore.dylib              0x000000010045b570 swift_deletedMethodError (__hidden#17462_:282)
4   libswiftCore.dylib              0x0000000100440fdc _hidden#16819_ (__hidden#16861_:392)
5   libswiftCore.dylib              0x000000010044106c swift_dynamicCastClass (__hidden#16861_:478)
6   libswiftCore.dylib              0x0000000100441bd0 swift_dynamicCastUnknownClassUnconditional (__hidden#16793_:49)
7   libswiftCore.dylib              0x00000001004440a4 _hidden#16825_ (__hidden#16861_:1637)
8   libswiftCore.dylib              0x0000000100442c6c swift_dynamicCast (__hidden#16861_:1676)
9   libswiftCore.dylib              0x0000000100442fb8 swift_dynamicCast (__hidden#16861_:1684)
10  Horizon Wave                    0x00000001000be1d0 _hidden#661_ (__hidden#728_:0)
11  Horizon Wave                    0x00000001000be5fc _hidden#664_ (__hidden#728_:0)
12  Horizon Wave                    0x00000001000bd084 _hidden#636_ (__hidden#728_:0)
13  Horizon Wave                    0x00000001000bc704 _hidden#625_ (__hidden#728_:0)
14  UIKit                           0x00000001946cd2f0 -[UIViewController _setViewAppearState:isAnimating:] + 848
15  UIKit                           0x00000001946cd854 -[UIViewController _endAppearanceTransition:] + 220
16  UIKit                           0x0000000194785e48 -[UINavigationController navigationTransitionView:didEndTransition:fromView:toView:] + 1236
17  UIKit                           0x0000000194856fa8 __49-[UINavigationController _startCustomTransition:]_block_invoke + 232
18  UIKit                           0x00000001947dcad4 -[_UIViewControllerTransitionContext completeTransition:] + 116
19  UIKit                           0x000000019492cffc __53-[_UINavigationParallaxTransition animateTransition:]_block_invoke.97 + 712
20  UIKit                           0x00000001946ee024 -[UIViewAnimationBlockDelegate _didEndBlockAnimation:finished:context:] + 492
21  UIKit                           0x00000001946edb48 -[UIViewAnimationState sendDelegateAnimationDidStop:finished:] + 312
22  UIKit                           0x00000001946ed988 -[UIViewAnimationState animationDidStop:finished:] + 160
23  QuartzCore                      0x0000000191b76404 CA::Layer::run_animation_callbacks(void*) + 260
24  libdispatch.dylib               0x000000018d6f51c0 _dispatch_client_callout + 16
25  libdispatch.dylib               0x000000018d6f9d6c _dispatch_main_queue_callback_4CF + 1000
26  CoreFoundation                  0x000000018e819f2c __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12
27  CoreFoundation                  0x000000018e817b18 __CFRunLoopRun + 1660
28  CoreFoundation                  0x000000018e746048 CFRunLoopRunSpecific + 444
29  GraphicsServices                0x00000001901c9198 GSEventRunModal + 180
30  UIKit                           0x0000000194720628 -[UIApplication _run] + 684
31  UIKit                           0x000000019471b360 UIApplicationMain + 208
32  Horizon Wave                    0x00000001000b7e84 main (__hidden#180_:12)
33  libdyld.dylib                   0x000000018d7285b8 start + 4

任何想法将不胜感激

【问题讨论】：

您需要符号化崩溃日志，但看起来强制向下转换失败并且代码处于关闭状态。 let data = result?.getCurrentPage() as! [Images] 看起来像是该问题的候选者。
@Paulw11 请问你能解释更多吗？如果你候选人这条线你可以建议任何事情，所以我可以检查
好吧，如果result.getCurrentPage() 没有返回一个图像数组，你的应用就会崩溃。你应该防御性地编码；使用if let data = result?.getCurrentPage() as? [Images] 并处理未检索到数据或不是图像数组的情况
@Paulw11 好的，我会检查并反馈
@Paulw11 我已经尝试过您的解决方案，但效果不佳，我已更新问题请您再次检查

标签： ios swift crash crash-reports

【解决方案1】：

检查调试和发布之间的不同设置。检查如果您关闭优化会发生什么，这也可以让您调试代码。检查您是否有修复代码的日志记录语句或断言。

【讨论】：

如何检查调试和发布之间的不同位置？ + 如何关闭优化？