小编Dev*_*are的帖子

我正在尝试通过名为 Agora 的第三方将实时视频流集成到我的应用程序中。我面临一些错误，如No such module \'AgoraRtcKit\'。我已经从他们的网站导入了库 SDK（还附上了相同的屏幕截图）。

代码：

 //\n//  RoleViewController.swift\n//  OpenLive\n//\n//  Created by CavanSu on 2019/8/28.\n//  Copyright \xc2\xa9 2019 Agora. All rights reserved.\n//\n\nimport UIKit\nimport AgoraRtcKit. // This is the module which is not getting imported \n\nprotocol RoleVCDelegate: NSObjectProtocol {\n    func roleVC(_ vc: RoleViewController, didSelect role: AgoraClientRole)\n}\n\nclass RoleViewController: UIViewController {\n\n    weak var delegate: RoleVCDelegate?\n    \n    override func viewDidLoad() {\n        super.viewDidLoad()\n    }\n    \n    override var preferredStatusBarStyle: UIStatusBarStyle {\n        return .lightContent\n    }\n    \n    override func prepare(for segue: UIStoryboardSegue, sender: …

我是 React-Native 新手，在获取下拉列表中的 api 数据时遇到一些问题。基本上我想从 API 中获取名称并将其显示在下拉列表中。有一段时间我添加了国家。下面是我的代码。我只想从 api 获取员工的姓名。

import DropDownPicker from 'react-native-dropdown-picker';
export default class ImageScreen extends React.Component {  
  static navigationOptions = ({ navigation }) => {
    return {
      title: "Source Listing",
      headerStyle: {backgroundColor: "#000"},
      headerTitleStyle: {textAlign: "center",flex: 1}
     };
    };
    constructor(props) {
     super(props);
     this.state = {
       loading: true,
       dataSource:[]
      };
    }
    componentDidMount(){
    fetch("https://jsonplaceholder.typicode.com/users")  // **Api for fetching**
    .then(response => response.json())
    .then((responseJson)=> {
      this.setState({
       loading: false,
       dataSource: responseJson
      })
    })
    .catch(error=>console.log(error)) //to catch the errors if any
    }
    FlatListItemSeparator …

我是 Node.js 新手，并尝试从 Google 开发人员 Codelabs 步骤链接实现传输跟踪器： https: //codelabs.developers.google.com/codelabs/transport-tracker-backend/#2。

当我运行时，我遇到错误分段错误（核心转储）npm run main。

包.json

{
  "name": "transport-tracker-server",
  "version": "1.0.0",
  "description": "The server component for Transport Tracker",
  "scripts": {
    "main": "node main.js"
  },
  "author": "Brett Morgan",
  "license": "Apache-2.0",
  "dependencies": {
    "asyncawait": "^3.0.0",
    "bluebird": "^3.7.2",
    "csv-parse": "^4.12.0",
    "sqlite3": "^5.0.0"
  }
}

main.js

/*eslint-disable unknown-require */
const _async = require('asyncawait/async');
const _await = require('asyncawait/await');
const {GTFS} = require('./gtfs.js');
const gtfs = new GTFS();

_async(() => {
  const trips = _await(gtfs.getTripsForCalendarDate('20160518')); …

我已经用数字实现了 React Native 步进器。如下：

我想向步进器添加一些自定义图标而不是数字。

我想添加自定义图标，例如订单已确认、已发货、已交付图标等。有什么办法吗？

下面是步进器的代码如下：

import StepIndicator from 'react-native-step-indicator';

const labels = ["Cart","Delivery Address","Order Summary","Payment Method","Track"];
const customStyles = {
  stepIndicatorSize: 25,
  currentStepIndicatorSize:30,
  separatorStrokeWidth: 2,
  currentStepStrokeWidth: 3,
  stepStrokeCurrentColor: '#fe7013',
  stepStrokeWidth: 3,
  stepStrokeFinishedColor: '#fe7013',
  stepStrokeUnFinishedColor: '#aaaaaa',
  separatorFinishedColor: '#fe7013',
  separatorUnFinishedColor: '#aaaaaa',
  stepIndicatorFinishedColor: '#fe7013',
  stepIndicatorUnFinishedColor: '#ffffff',
  stepIndicatorCurrentColor: '#ffffff',
  stepIndicatorLabelFontSize: 13,
  currentStepIndicatorLabelFontSize: 13,
  stepIndicatorLabelCurrentColor: '#fe7013',
  stepIndicatorLabelFinishedColor: '#ffffff',
  stepIndicatorLabelUnFinishedColor: '#aaaaaa',
  labelColor: '#999999',
  labelSize: 13,
  currentStepLabelColor: '#fe7013'
}


constructor() {
    this.state = {
        currentPosition: 0
    }
}

render() {
  return (
    <StepIndicator
         customStyles={customStyles}
         currentPosition={this.state.currentPosition} …