我需要在我的 React Native Android 应用程序中实现 Headless JS，但我遇到了以下问题:

这是我的代码:

index.android.js :

import React, { Component } from 'react'; 
import {AppRegistry} from 'react-native'; 
import SomeTaskName from './SomeTaskName' 
AppRegistry.registerComponent('SomeTaskName', () => SomeTaskName); 

SomeTaskName.js

module.exports = async (taskData) => { 
   alert('test'); 
} 

MyTaskService.java

import android.content.Intent; 
import android.os.Bundle; 
import com.facebook.react.HeadlessJsTaskService; 
import com.facebook.react.bridge.Arguments; 
import com.facebook.react.jstasks.HeadlessJsTaskConfig; 
public class MyTaskService extends HeadlessJsTaskService { 
   @Override 
   protected HeadlessJsTaskConfig getTaskConfig(Intent intent) { 
   Bundle extras = intent.getExtras(); 
     if (extras != null) { 
        return new HeadlessJsTaskConfig( 
          "MyTaskService", 
          Arguments.fromBundle(extras), 
         5000); 
     } 
     return null; 
  } 
} 

并在AndroidManifest.xml中添加服务

<service android:name=".MyTaskService" android:enabled="true" android:label="MyTaskService" /> 

请，任何人帮助解决这个问题。

请您参考如下方法:

您必须注册一个 headless 任务。所以替换下面的代码:

AppRegistry.registerComponent('SomeTaskName', () => SomeTaskName); 

与:

AppRegistry.registerHeadlessTask('SomeTaskName', () => SomeTaskName); 

并且您需要从您的服务中调用任务，因此替换:

if (extras != null) { 
    return new HeadlessJsTaskConfig( 
      "MyTaskService", 
      Arguments.fromBundle(extras), 
     5000); 
 } 
 return null; 

与:

// Following line just to be sure it does not silently fail 
WritableMap data = extras != null ? Arguments.fromBundle(extras) : null; 
return new HeadlessJsTaskConfig( 
    "SomeTaskName", // Use the registered headless Task here 
    data, 
    5000);