ios - 在 Swift 3 中检查 launchOptions

Question

我已将我的代码转换为 swift 3，并且已提交到应用商店。当他们打开应用程序时，它会在第一时间崩溃。结果，我检查了我的崩溃日志，它在这一行崩溃了。

    if let myLaunchOptions: NSDictionary = launchOptions as NSDictionary? {

我的整体代码是这样的。我知道 launchOptions 可以是 nil，它甚至可能不是 NSDictionary。这就是为什么我这样检查并且在那条线上失败的原因。我可以知道如何使用 swift 3 检查/预防吗？

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

    if let myLaunchOptions: NSDictionary = launchOptions as NSDictionary? {
        let test = myLaunchOptions[UIApplicationLaunchOptionsKey.userActivityDictionary] as! NSDictionary
        let userActivity = test["UIApplicationLaunchOptionsUserActivityKey"] as! NSUserActivity
        NSLog("test1:" + String(describing: userActivity))
        continueUserActivity(userActivity)
        }

我的崩溃日志在这里。

Answer 1

您应该像这样检查和获取用户事件:

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

    if let userActivityDictionary = launchOptions?[.userActivityDictionary] as? [UIApplicationLaunchOptionsKey : Any],
        let userActivity = userActivityDictionary[.userActivityType] as? NSUserActivity {
        continueUserActivity(userActivity)
    }

    return true
}