Question

我正在尝试用swift构建一个iPhone应用程序，我已经安装了所有依赖于“连接到你的后端”https://docs.aws.amazon.com/aws-mobile/latest/developerguide/add-aws-mobile-nosql-database.html，我甚至有amazon aws登录页面所以它是def连接的，只是当我添加这一行时： let dynamoDbObjectMapper = AWSDynamoDBObjectMapper.default（）它告诉我在教程中做的，应用程序在屏幕上崩溃，代码与线程1：SIGABRT相关联。这是我在屏幕上的代码。

import UIKit
import MapKit
import AWSCore  
import AWSAuthUI
import AWSMobileClient
import AWSUserPoolsSignIn
import AWSDynamoDB


class SampleViewController: UIViewController, CLLocationManagerDelegate {

    let locationManager = CLLocationManager()

    override func viewDidLoad() {
        super.viewDidLoad()
        let dynamoDbObjectMapper = AWSDynamoDBObjectMapper.default()
        if !AWSSignInManager.sharedInstance().isLoggedIn {
            presentAuthUIViewController()
            self.navigationController?.isNavigationBarHidden = true
        }

    }

    @IBAction func askPermission(_ sender: UIButton) {
        locationManager.delegate = self
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        locationManager.requestWhenInUseAuthorization()
        locationManager.startUpdatingLocation()


    }







    func presentAuthUIViewController() {
        let config = AWSAuthUIConfiguration()
        config.enableUserPoolsUI = true

        AWSAuthUIViewController.presentViewController(
            with: self.navigationController!,
            configuration: config, completionHandler: { (provider: AWSSignInProvider, error: Error?) in
                if error == nil {
                    // SignIn succeeded.
                } else {
                    // end user faced error while loggin in, take any required action here.
                }
        })

    }

}

我很感激任何帮助，如果需要可以发布更多信息。非常感谢你。

Answer 1

是否可以在定义“DynamoDBObjectMapper”的部分之后将以下内容添加到awsconfiguration.json中。将下面的“YourRegion”占位符替换为数据库所在的区域。这是awsconfiguration.json文件中的必需部分，并且可能存在生成配置的工具中的错误。

"DynamoDB": {
   "Default": {
   "Region": "YourRegion"
   }
},

AWS DynamoDB Object Mapper与SIGABRT崩溃

1 个答案: