如何从非反应 class 发送反应应用程序上下文？

Question

我需要更新状态变化，例如 android 之间的事件和反应本机 class?

public class MessagingService extends FirebaseMessagingService {
      @Override
      public void onMessageReceived(RemoteMessage remoteMessage) {
        Log.d(TAG, "Push Message Received ");
        buildLocalNotification(remoteMessage);
      }

      public void buildLocalNotification(RemoteMessage message) {
        ...
        FBMessagingHelper notificationHelper = new FBMessagingHelper(this.getApplication());
        notificationHelper.showNotification(bundle);
      }
    }

当 class 扩展到 FBMessingService 时，如何创建 ReactApplicationContext 构造函数？

FBMessagingHelper notificationHelper = new FBMessagingHelper(this.getApplication());
// Getting Error as a parameter is not react app context

我需要更新 IN_VIDEO_PROGRESS 状态

当 React Native 的视频 starts/stop 时更新到 Android。
当 Android 的视频 starts/stop 时更新到 React Native。

public class FBMessagingHelper extends ReactContextBaseJavaModule {
  private ReactApplicationContext mContext;
  private static boolean IN_VIDEO_PROGRESS = false;

  public FBMessagingHelper(ReactApplicationContext reactContext) { // Added into Native Modules
     mContext = applicationContext;
  }

@ReactMethod
    public void onVideoProgress(Bolean status){
        // ==== on videoProgress ====
        IN_VIDEO_PROGRESS = status
    }

 @Nonnull
 @Override
    public String getName() {
        return "FBMessagingHelper";
    }

  public void showCustomNotification(Bundle bundle) {
    if (!IN_VIDEO_PROGRESS && bundle.getString("category").equals("VIDEO") {
       IN_VIDEO_PROGRESS = true;
       // start FullScreenNotificationActivity
    }
  }
}

已创建本机模块：

    public class FBMessagingPackage implements ReactPackage{
    @Override
      public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
        List<NativeModule> modules = new ArrayList<>();
        modules.add(new FBMessagingHelper(reactContext));
        modules.add((NativeModule) new MessagingService(reactContext));
        // Error: cannot be cast to nativeModule
        return modules;
      }
        ...
        ...
    }

Answer 1

我已经以某种方式解决了这个问题。我们不能在 FirebaseMessagingService 上扩展 ReactApplicationContext。即使应用程序不是运行并且我们无法控制添加反应上下文，也会调用此服务。

所以我创建了一个单独的模块并添加了将事件数据更新到 FBMessagingHelper 的侦听器 class。

public class FBMessagingPackage implements ReactPackage{
    @Override
      public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
        List<NativeModule> modules = new ArrayList<>();
        modules.add(new VideoModule(reactContext));
        return modules;
      }
    }

public class VideoModule extends ReactContextBaseJavaModule {
   private ReactApplicationContext mContext;

  public VideoModule(ReactApplicationContext reactContext) { // Added into Native Modules
     mContext = applicationContext;
  }

@ReactMethod
    public void onVideoProgress(Bolean status){
        FBMessagingHelper.IN_VIDEO_PROGRESS = status 
        // Store it to public static variable of FBMessagingHelper
    }

 @Nonnull
 @Override
    public String getName() {
        return "VideoModule";
    }


}

如何从非反应 class 发送反应应用程序上下文？

How do I send React Application context from non react class?

android

bridge

ios

reactjs

react-native