Blog App

App demo: https://snack.expo.io/@miguelniblock/github.com-miguelniblock-reactnative-blogapp

Backend code: https://glitch.com/edit/#!/reactnative-blogapp-jsonserver

This react native app allows you to create new blog posts by pressing the "+" button. Each entry has a title and content property. Posts can be edited by clicking on the post, and pressing the "pencil" button. A form is shown while editing, which contains TextInput elements and a submit button.

Technical Features

• Uses react-navigation to manage various screens: Index, Show, Create & Edit.
• Uses the "Provider and Context" scheme to pass functions and state across components at any level. (Basically, like recreating the functionality of Redux)
• Uses a reducer function to manage state. It handles three action types: addBlogPost, deleteBlogPost, and editBlogPost.
• Context and Provider objects are created using a function for {Context, Provider} = createContext(reducer,{...actions},initialState) . This approach makes the creation of additional contexts & providers more easily.
• Each post receives a randomly-generated unique ID, which is passed to a FlatList element, in Index screen.
• The Create and Edit screens reuse the component BlogPostForm, which is destructured from the Context. They then assign either the addBlogPost or editBlogPost functions to the Submit button. (Also descructured from Context)
  • These functions then pass the appropriate action types and payloads to the dispatch function, based on the local state from the form's TexInput elements. (title & content)

Screenshots