React-Native Hybrid App:嵌入RCTRootView的Pop UIViewController

Question

我正在使用Objective-C/Swift编写的现有iOS应用程序中集成组件.

作为我的应用程序的根视图控制器,我使用了UINavigationController.

在我的应用程序的多个视图控制器之一中,我有一个按钮,可以在导航控制器中推送包含以下代码的视图控制器:

@objc class ReactNativeViewController: UIViewController {
  override func viewDidLoad() {
    let jsCodeLocation = NSURL(string: "http://localhost:8081/index.ios.bundle?platform=ios&dev=true")

    let contactsView = RCTRootView(bundleURL: jsCodeLocation, moduleName: "MainComponent", initialProperties: nil, launchOptions: nil)

    self.view.addSubview(contactsView)
    contactsView.frame = self.view.bounds;
  }
}

MainComponent返回一个Navigator管理多个React-Native组件的东西:

return (
  <Navigator
    initialRoute={initialRoute}
    renderScene={(route, navigator) => {
      if (route.component) {
        return <route.component navigator={navigator} {...route.passProps} />;
      }
    }}
    navigationBar={
      <Navigator.NavigationBar
        routeMapper={this.NavigationBarRouteMapper}
        style={styles.navBar}
      />
    }
  />
);

该工作流程正常.我唯一需要的是流行的方式ReactNativeViewController从我UINavigationController当按钮Back被击中的主要阵营本地组件.

我试过以下但没有运气:

• 使用单个方法创建一个本机模块,该方法popLastViewController弹出从UINavigationController显示的显示的UIViewController:

  @implementation RNNavigationControllerBridge
  
  RCT_EXPORT_MODULE()
  
  RCT_EXPORT_METHOD(popLastViewController) {
    UINavigationController *navigationController = (UINavigationController *)[[[[UIApplication sharedApplication] delegate] window] rootViewController];
  
    [navigationController popViewControllerAnimated:NO];
  }
  
  @end
  

• 按下后退按钮时调用上面的方法:

  onPress={() => {
    if (index === 0) {
      NativeViewsManager.popLastViewController();
    } else {
      navigator.pop();
    }
  }}
  

但这不起作用.

有什么建议吗？

Answer 1

问题解决了!

RCT_EXPORT_METHOD(popLastViewController) {
  dispatch_async(dispatch_get_main_queue(), ^{
    UINavigationController *navigationController = (UINavigationController *)[[[[UIApplication sharedApplication] delegate] window] rootViewController];

    [navigationController popViewControllerAnimated:YES];
  });
}