ReactNative 异步+同步加载js 并执行

configJSON.json

{
  "remoteModuleConfig": [
    [
      "RCTJSCExecutor"
    ],
    [
      "RNActionView"
    ],
    [
      "RCTStatusBarManager"
    ],
    [
      "RCTSourceCode"
    ],
    [
      "RCTAlertManager"
    ],
    [
      "RCTExceptionsManager"
    ],
    [
      "RCTDevMenu"
    ],
    [
      "RCTAsyncLocalStorage"
    ],
    [
      "RCTViewManager"
    ],
    [
      "RCTProgressViewManager"
    ],
    [
      "RCTSwitchManager"
    ],
    [
      "RCTActivityIndicatorViewManager"
    ],
    [
      "RCTDatePickerManager"
    ],
    [
      "RCTPerfMonitor"
    ],
    [
      "RCTScrollViewManager"
    ],
    [
      "RCTTabBarManager"
    ],
    [
      "RCTAccessibilityManager"
    ],
    [
      "RCTDevLoadingView"
    ],
    [
      "RCTTiming"
    ],
    [
      "RCTAppState"
    ],
    [
      "RCTSliderManager"
    ],
    [
      "RCTClipboard"
    ],
    [
      "RCTPerformanceLogger"
    ],
    [
      "RCTNavItemManager"
    ],
    [
      "RCTKeyboardObserver"
    ],
    [
      "RCTTabBarItemManager"
    ],
    [
      "RCTMapManager"
    ],
    [
      "RCTWebViewManager"
    ],
    [
      "RCTSegmentedControlManager"
    ],
    [
      "RCTPickerManager"
    ],
    [
      "RCTRefreshControlManager"
    ],
    [
      "RCTRedBox"
    ],
    [
      "RCTEventDispatcher"
    ],
    [
      "RCTModalHostViewManager"
    ],
    [
      "RCTUIManager"
    ],
    [
      "RCTNavigatorManager"
    ],
    [
      "RCTActionSheetManager"
    ],
    [
      "RCTLocationObserver"
    ],
    [
      "RCTImageStoreManager"
    ],
    [
      "RCTImageViewManager"
    ],
    [
      "RCTGIFImageDecoder"
    ],
    [
      "RCTImageLoader"
    ],
    [
      "RCTImageEditingManager"
    ],
    [
      "RCTXCAssetImageLoader"
    ],
    [
      "RCTLinkingManager"
    ],
    [
      "RCTFileRequestHandler"
    ],
    [
      "RCTDataRequestHandler"
    ],
    [
      "RCTNetInfo"
    ],
    [
      "RCTNetworking"
    ],
    [
      "RCTHTTPRequestHandler"
    ],
    [
      "RCTSettingsManager"
    ],
    [
      "RCTTextManager"
    ],
    [
      "RCTRawTextManager"
    ],
    [
      "RCTTextFieldManager"
    ],
    [
      "RCTTextViewManager"
    ],
    [
      "RCTVibration"
    ],
    [
      "RCTWebSocketModule"
    ],
    [
      "RCTWebSocketExecutor"
    ]
  ]
}

RCTBatchedBridge.m

dispatch_queue_t bridgeQueue = dispatch_queue_create("com.facebook.react.RCTBridgeQueue", DISPATCH_QUEUE_CONCURRENT);

  dispatch_group_t initModulesAndLoadSource = dispatch_group_create();

  // Asynchronously load source code
  dispatch_group_enter(initModulesAndLoadSource);
  __weak RCTBatchedBridge *weakSelf = self;
  __block NSData *sourceCode;
  [self loadSource:^(NSError *error, NSData *source) {
    if (error) {
      dispatch_async(dispatch_get_main_queue(), ^{
        [weakSelf stopLoadingWithError:error];
      });
    }

    sourceCode = source;
    dispatch_group_leave(initModulesAndLoadSource);
  }];