iOS 版 Google Maps API 的 API 密钥异常 [英] Exception on API Key of Google Maps API for iOS

问题描述

我正在使用适用于 IOS 的 Google Maps API 开发 iOS 应用.我为我的项目安装了 CocoaPod 并根据 Google Developer 上的教程配置它们.但是，当我运行我的项目时，它说

I am developing an iOS app using Google Maps API for IOS. And I installed the CocoaPod for my project and configure them according to tutorial on Google Developer. However, when I run my project, it says

*** 由于未捕获的异常GMSServicesException"而终止应用，原因:iOS 版 Google Maps SDK 必须 > 在使用前通过 [GMSServices provideAPIKey:...] 进行初始化"

*** Terminating app due to uncaught exception 'GMSServicesException', reason: 'Google Maps SDK for iOS must > be initialized via [GMSServices provideAPIKey:...] prior to use'

但我已经在 AppDelegate.swift 上调用了GMSServices.provideAPIKey.以下是代码:

But I already call "GMSServices.provideAPIKey on the AppDelegate.swift. Following is the code:

....
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    GMSServices.provideAPIKey("***********************")
    return true
}
....

(**************) 是我的 API 密钥.

(**************) is my API Key.

并且因为 Google Maps API 使用 Objective C，所以我创建了一个桥接头来导入库.

And because Google Maps API use Objective C, so I created a Bridging Header to import the library.

我试图在 [application:didFinishLaunchingWithOption] 上设置断点.但是在运行该函数之前会引发异常，我认为这很奇怪.

I tried to set breakpoint on [application:didFinishLaunchingWithOption]. But it will raise exception before run that function, which I think is very weird.

对此很困惑.提前致谢.

So confused about it. Thanks in advance.

推荐答案

问题终于解决了，原因是我在一个模型类中使用谷歌地图库初始化了一个字段，它会在应用程序运行之前创建.所以这个错误发生了.当我将此变量移动到方法中时，问题解决了.以下是导致错误的代码:

Problem finally solved, the reason is that I initialize a fields using Google Maps library in the one model class and it will be created before the app run. So this error happens. When I moved this variable into the method, problem solved. Following is the code that causes error:

class PlaceManager {
    let placeClient = GMSPlacesClient()
    ...
    func getSuggestions(queryString:String) -> [String]{
        ...
    }
}

之后

class PlaceManager {
    func getSuggestions(queryString:String) -> [String]{
        let placeClient = GMSPlacesClient()
        ...
    }
}

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