Firebase 和 Xcode12 API 已弃用，使用 fetchItemsForIdentityVerificationSignature：

Question

我尝试将 Firebase 与 Xcode 12 一起使用，但在安装和运行项目后我遇到了这个警告。

'generateIdentityVerificationSignatureWithCompletionHandler:' 已弃用：首先在 iOS 13.5 中弃用 - API 已弃用。使用 fetchItemsForIdentityVerificationSignature: 和 teamPlayerID 值来验证用户身份。

知道如何解决这个问题吗？

这里是代码：


+ (void)getCredentialWithCompletion:(FIRGameCenterCredentialCallback)completion {
  /**
   Linking GameKit.framework without using it on macOS results in App Store rejection.
   Thus we don't link GameKit.framework to our SDK directly. `optionalLocalPlayer` is used for
   checking whether the APP that consuming our SDK has linked GameKit.framework. If not, a
   `GameKitNotLinkedError` will be raised.
   **/
  GKLocalPlayer *_Nullable optionalLocalPlayer = [[NSClassFromString(@"GKLocalPlayer") alloc] init];

  if (!optionalLocalPlayer) {
    if (completion) {
      completion(nil, [FIRAuthErrorUtils gameKitNotLinkedError]);
    }
    return;
  }

  __weak GKLocalPlayer *localPlayer = [[optionalLocalPlayer class] localPlayer];
  if (!localPlayer.isAuthenticated) {
    if (completion) {
      completion(nil, [FIRAuthErrorUtils localPlayerNotAuthenticatedError]);
    }
    return;
  }

  [localPlayer generateIdentityVerificationSignatureWithCompletionHandler:^(
                   NSURL *publicKeyURL, NSData *signature, NSData *salt, uint64_t timestamp,
                   NSError *error) {
    if (error) {
      if (completion) {
        completion(nil, error);
      }
    } else {
      if (completion) {
        /**
         @c `localPlayer.alias` is actually the displayname needed, instead of
         `localPlayer.displayname`. For more information, check
         https://developer.apple.com/documentation/gamekit/gkplayer
         **/
        NSString *displayName = localPlayer.alias;
// iOS 13 deprecation
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
        FIRGameCenterAuthCredential *credential =
            [[FIRGameCenterAuthCredential alloc] initWithPlayerID:localPlayer.playerID
                                                     publicKeyURL:publicKeyURL
                                                        signature:signature
                                                             salt:salt
                                                        timestamp:timestamp
                                                      displayName:displayName];
#pragma clang diagnostic pop
        completion(credential, nil);
      }
    }
  }];
}

Answer 1

我目前也在一个使用 firebase 并使用类似代码的项目中。由于 swift 5.3 刚刚发布，API 也需要一段时间才能更新。如果您的项目运行符合预期，请不要担心警告，因为您的代码仍会编译并希望运行。您可以在 https://firebase.google.com/support/release-notes/ios 处检查 API 的更新，一旦它在终端中更新运行 “pod update”（就像您安装它们时一样），它就会解决问题。这是更新 swift 时发生的问题。

Answer 2

这是为我做的:)

[localPlayer
   fetchItemsForIdentityVerificationSignature:^(NSURL *publicKeyURL, NSData     *signature, NSData *salt, uint64_t timestamp, NSError *error) {
    if (error) {
      if (completion) {
        completion(nil, error);
      }
    } else {
      if (completion) {
        /**
         @c `localPlayer.alias` is actually the displayname needed, instead of
         `localPlayer.displayname`. For more information, check
         https://developer.apple.com/documentation/gamekit/gkplayer
         **/
        NSString *displayName = localPlayer.alias;
// iOS 13 deprecation
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
        FIRGameCenterAuthCredential *credential =
            [[FIRGameCenterAuthCredential alloc]     initWithPlayerID:localPlayer.playerID
                                                     publicKeyURL:publicKeyURL
                                                        signature:signature
                                                             salt:salt
                                                        timestamp:timestamp
                                                      displayName:displayName];
#pragma clang diagnostic pop
        completion(credential, nil);
      }
    }
  }];
}

Firebase 和 Xcode12 API 已弃用，使用 fetchItemsForIdentityVerificationSignature：

Firebase and Xcode12 API deprecated, Use fetchItemsForIdentityVerificationSignature:

swift

xcode

firebase

function

xcode12