Question

我在Xcode 8.3中为iOS应用程序提供了以下App委托：

<form class="navbar-form navbar-left" style="padding:0px; border-top-width:0px;"></form>

当我在模拟器或设备上启动应用程序时，它会崩溃，并显示以下消息：

void Home()
{
    cout << "\nYou are in the living room of your rented home. Everything looks nice and tidy." << endl;
    cout << "Choices:" << endl;
    cout << "Sleep" << endl;
    cout << "Leave" << endl;
    cout << "Stats" << endl;
    cin >> choice;

    if (choice == "Sleep" || "sleep")
    {
        Sleep(); // No matter what choice I make, it always
        //goes to the Sleep(); void.
    }
    if (choice == "Leave" || choice == "leave"){
        TownSquare();
    } if (choice == "Stats" || choice == "stats") {
        StatsH();
    }
    else {
        cout << "Please choose correctly!" << endl;
        Home();
    }
}

在模拟器中，这是一个略有不同的错误消息：

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
  var window: UIWindow?

  func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
  }
}

删除2017-07-04 21:26:04.284336+0200 MyApp[352:25788] -[NSTaggedPointerString containsObject:]: unrecognized selector sent to instance 0xa00000070696f764 2017-07-04 21:26:04.284569+0200 MyApp[352:25788] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '- [NSTaggedPointerString containsObject:]: unrecognized selector sent to instance 0xa00000070696f764' *** First throw call stack: (0x188baefe0 0x187610538 0x188bb5ef4 0x188bb2f54 0x188aaed4c 0x18ef7d030 0x18ef630f4 0x18ef77d18 0x18ef60474 0x18a757884 0x18a7576f0 0x18a757aa0 0x188b5d42c 0x188b5cd9c 0x188b5a9a8 0x188a8ada4 0x18ed4a384 0x18ed45058 0x100106fc8 0x187a9959c) libc++abi.dylib: terminating with uncaught exception of type NSException方法会导致崩溃消失。

有没有人知道发生了什么？

Answer 1

您可能有第三方框架导致此问题。首先，您发布了Swift代码，但是收到了Objective-C错误消息。您正在使用的库可能正在注册处理通知。

其次，didReceiveRemoteNotification需要在退出前始终将其称为completionHandler。因此，空白函数会导致问题。

您需要使用completionHandler，.newData或.noData参数调用.failed，具体取决于您的搜索结果。

Answer 2

找出问题：我的Info.plist有背景模式＆＃39;设置为字符串而不是模式数组。修复可以修复崩溃。

添加didReceiveRemoteNotification时，iOS AppDelegate崩溃

2 个答案: