如何使用AWS SDK for iOS与Objective-C而不是Swift一起使用？

我通过以下方式将基于Objective-C的应用程序连接到AWS S3文件存储。它使用AWS Amplify CLI和AWS SDK for iOS（AWSAPSync）。我的问题是需要将Swift代码段添加到appDelegate文件中。然而，我的appDelegate是Objective-C，我不知道正确添加它的最佳方式是什么

[1] 委托文件中的这个额外代码段真的有必要吗？我只想将图像上传到S3文件存储

[2] 如有必要，最好的解决方法是什么？（制作一个单独的swift文件并将其连接到appDelegate文件感觉有点太粗糙了）

以下是片段：

import AWSAppSync

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var appSyncClient: AWSAppSyncClient?

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        do {
            // You can choose the directory in which AppSync stores its persistent cache databases
            let cacheConfiguration = try AWSAppSyncCacheConfiguration()

            // AppSync configuration & client initialization
            let appSyncServiceConfig = try AWSAppSyncServiceConfig()
            let appSyncConfig = try AWSAppSyncClientConfiguration(appSyncServiceConfig: appSyncServiceConfig,
                                                                  cacheConfiguration: cacheConfiguration)
            appSyncClient = try AWSAppSyncClient(appSyncConfig: appSyncConfig)
        } catch {
            print("Error initializing appsync client. \(error)")
        }
        // other methods
        return true
    }

到目前为止，我已经尝试使用这段代码：

#import <AWSAppSync/AWSAppSync.h>
#import <AWSCore/AWSCore.h>
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    AWSServiceConfiguration *configuration = [[AWSServiceConfiguration alloc] initWithRegion:DefaultServiceRegionType credentialsProvider:credentialsProvider];
    AWSServiceManager.defaultServiceManager.defaultServiceConfiguration = configuration;
}

---

您可以使用

AWSCore

在objective c应用程序委托中导入AWSCore标题

@import AWSCore;

并在中创建服务配置

application:didFinishLaunchingWithOptions:

应用程序委托方法

AWSCognitoCredentialsProvider *credentialsProvider = [[AWSCognitoCredentialsProvider alloc] initWithRegionType:CognitoRegionType
                                                                                                identityPoolId:CognitoIdentityPoolId];
AWSServiceConfiguration *configuration = [[AWSServiceConfiguration alloc] initWithRegion:DefaultServiceRegionType
                                                                     credentialsProvider:credentialsProvider];
AWSServiceManager.defaultServiceManager.defaultServiceConfiguration = configuration;

为正在使用的服务（可能在视图控制器内）导入适当的标头。头文件导入约定为@import AWSServiceName；作为

@import AWSS3;
@import AWSDynamoDB;
@import AWSSQS;
@import AWSSNS;
@import AWSCognito; 

并实现对AWS服务的调用

AWSS3TransferManager *transferManager = [AWSS3TransferManager defaultS3TransferManager];
AWSS3TransferManagerUploadRequest *uploadRequest = [AWSS3TransferManagerUploadRequest new];
uploadRequest.bucket = yourBucket;
uploadRequest.key = yourKey;
uploadRequest.body = yourDataURL;
uploadRequest.contentLength = [NSNumber numberWithUnsignedLongLong:fileSize];

[[transferManager upload:uploadRequest] continueWithBlock:^id(AWSTask *task) {
    // Do something with the response
    return nil;
}];

AWSS3TransferManager *transferManager = [AWSS3TransferManager defaultS3TransferManager];
AWSS3TransferManagerUploadRequest *uploadRequest = [AWSS3TransferManagerUploadRequest new];
uploadRequest.bucket = yourBucket;
uploadRequest.key = yourKey;
uploadRequest.body = yourDataURL;
uploadRequest.contentLength = [NSNumber numberWithUnsignedLongLong:fileSize];

[[transferManager upload:uploadRequest] continueWithBlock:^id(AWSTask *task) {
    // Do something with the response
    return nil;
}];