flux | 易学教程

a scenario flux doesn't support

阅读更多关于 a scenario flux doesn't support

问题 I am using flux architecture with React and I have an issue I don't know how to handle. I need to write a logic that will listen to dispatched action (like a store) and will trigger an action in case the payload contains a specific value. For example, assume there is an action that dispatch "ITEM_CREATED". My component should catch this "ITEM_CREATED" event and it's payload, and check whether the payload contains correct serial number. In case the serial number is incorrect, my component

AAC架构学习（初识）

阅读更多关于 AAC架构学习（初识）

【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> Android Jetpack 是google推出的方便开发人员更快速的搭建应用的框架，分为四大块：Architecture、UI、Foundationy 以及 Behavior。其中的 Architecture组件，则提供了我们相当灵活好用的架构组件。比较关键的4个模块为： Lifecycle：能够帮助我们轻松应对Activity/Fragment的生命周期问题，可以更加解耦的方式处理生命周期变化问题，从而轻松避免内存泄漏。 LiveData：基于观察者模式，并且可以感知生命周期的数据持有类，能够帮助我们更好的解耦数据。 ViewModel：用来存储和管理 UI 相关的数据，方便数据保存和更新，方便完成数据与UI的绑定（感觉很像MVVM） Room：提供了数据库持久化功能（感觉类似greendao）。 WorkManager：非常好用的后台任务模块。以上则可以构成google官方推荐的android应用新架构如下图：从上图可以看出，各个模块相互解耦，互不影响，结构清晰，易于维护。从此android开发终于有了自己的架构，之前的MVC,MVP,MVVM甚至基于前端的Flux架构，都不是真正意义上为android服务的，这次的AAC架构师google官方为android量身定做

React setState / Flux - Does it always trigger a re-render?

阅读更多关于 React setState / Flux - Does it always trigger a re-render?

问题 I've been playing around with React Native lately and I reached a point where I became interested in managing my state more properly, as a start achieving a shared state between all the components. The answer of course is Flux. Before moving forward with some more advanced solutions (e.g. Redux, Alt, MobX) I thought I should start with understanding the raw structure itself, with the help of one small tool, that is the Flux dispatcher. import React, { Component } from 'react'; import {

Alt data dependency between actions not stores

阅读更多关于 Alt data dependency between actions not stores

问题 I have a react app where I'm using alt for the flux architecture side of things. I have a situation where I have two stores which are fed by ajax calls in their corresponding actions. Having read the alt getting started page on data dependencies it mentions dependencies between stores using waitFor - http://alt.js.org/guide/wait-for/ but I don't see a way to use this kind of approach if one of my store actions is dependent on another store action (both of which are async). If I was doing this

React && Flux confused about where to put data

阅读更多关于 React && Flux confused about where to put data

问题 I'm developing a web app with React + Flux. But sometimes, I am confused about where to put the data of a component. Flux says that we should keep the data in the store. When the data changed, store should emit a change event, then the react components which listen to the store's change event should call setState with the data in the store. But in this way, one react component is made by two parts, which are the component it self, and the store to be listened. Sometimes I want the component

Should React lifecycle methods be implemented in container components or presentation components?

阅读更多关于 Should React lifecycle methods be implemented in container components or presentation components?

问题 I'm attempting to implement container components in React and Redux, and I'm unsure of what should take responsibility for lifecycle methods; containers or presentational components. One could argue that the lifecycle methods are presentational as they control DOM updates, but in that respect, aren't they also behavioural? Furthermore, all of the implementations of container components that I've seen thus far utilise the react-redux bindings, as do my own. Even if I keep the concerns clearly

React - Authentication process : Cannot dispatch in the middle of a dispatch

阅读更多关于 React - Authentication process : Cannot dispatch in the middle of a dispatch

问题 I have started to play with react via flummox, react-bootstrap and react-router. I am trying to create a basic isomorphic CMS out of it for my websites. Context : In terms of authentication, each user has a list of capabilities and each component uses a method of my authentication store "can" to be displayed or not, etc... I have a user navbar on top, visible on every page handled by reat-router, with a signin/out button that basically displays on click a Modal with a signin form if the user

React.js - flux vs global event bus

阅读更多关于 React.js - flux vs global event bus

问题 What is the advantage of using Flux over a global event bus? I think the dispatcher is all that is needed: component publishes 'user event' with data to the dispatcher dispatcher executes handler of the subscribed store handler publishes 'update event' with the store's updated properties dispatcher executes handler of the subscribed component, and updates component state with the store's updated properties What am I missing here that I can't do without Flux? 回答1: I think what others have said

How to handle nested api calls in flux

阅读更多关于 How to handle nested api calls in flux

问题 I'm creating a simple CRUD app using Facebook's Flux Dispatcher to handle the creation and editing of posts for an English learning site. I currently am dealing with an api that looks like this: /posts/:post_id /posts/:post_id/sentences /sentences/:sentence_id/words /sentences/:sentence_id/grammars On the show and edit pages for the app, I'd like to be able to show all the information for a given post as well as all of it's sentences and the sentences' words and grammar details all on a

FluidTYPO3 vhs ViewHelper for SVG Images?

阅读更多关于 FluidTYPO3 vhs ViewHelper for SVG Images?

问题 I use TYPO3 CMS 6.2.14, vhs 2.3.3 , Flux 7.2.1 and FluidContent 4.3.1 - my TYPO3 Editor need the opportunity to upload SVG-Images via vhs -ViewHelper. I've made a new FluidTYPO3 Content Element (FCE), but there's no SVG Image visible in frontend. Mmhh? Flux-FlexForm <flux:field.file name="imgIcon" allowed="jpg,gif,png,jpeg,svg" uploadFolder="uploads/tx_myext" minItems="0" maxItems="1" size="1" /> ... <v:media.image src="uploads/tx_myext/{imgIcon}" alt="Icon" /> Output <div class="small-2