sharedSdkEngineNotInstantiated :抛出HEREMaps地理编码Swift错误

Question

所以我使用的是HERE iOS SDK。由于某些原因，try块不工作，我不断得到打印输出'sharedSdkEngineNotInstantiated‘的错误。getCoordinates函数是我在实例化之后尝试测试的函数--我将其包含在内，这样就不会让你们去猜测最终目标是什么。感谢大家的帮助！

class functions: NSObject, ObservableObject {
    var searchEngine: SearchEngine?

    override init() {
        do {
            try searchEngine = SearchEngine()
        } catch let engineInstantiationError {
            print("Failed to make the search engine. The cause was \(engineInstantiationError)")
        }
    }

    func getCoordinates5(from address: String) {
        guard searchEngine != nil else {
            return
        }
        let searchOptions = SearchOptions(maxItems: 10)
    
        let query = TextQuery(address, near: GeoCoordinates(latitude: 40.7128, longitude: 74.0060))
        _ = searchEngine!.search(textQuery: query, options: searchOptions) { (searchError, searchResultItems) in
            guard searchResultItems != nil else {
                return
            }
            for index in 0..<searchResultItems!.count {
                let number = index + 1
                print("Location \(number): \(searchResultItems![index])")
            }
        }
    }
}

Answer 1

正如here所解释的，您应该手动实例化sdk，因为当您的代码执行时，您可能还没有加载任何地图(显示地图将自动实例化sdk)。所以你需要做的就是

  // We must explicitly initialize the HERE SDK if no MapView is present.
do {
    try SDKInitializer.initializeIfNecessary()
} catch {
    fatalError("Failed to initialize HERE SDK")
}

在实例化SearchEngine之前