iOS Web data download and JSON parsing

iOS Web data download and JSON parsingIntroduction

In this article, I will give you an introduction to how iOS uses nsurlconnection to download data from the Web, how to parse the downloaded JSON data format, and how to display the asynchronous download display of data and images.

The knowledge points involved:

1.NSURLConnection Asynchronous Download and encapsulation

2.JSON format and JSON format parsing

3. Data display and use Sdwebimage to display images asynchronously

content

1. Introduction to Network Download basics

What is a Web application?

The program structure of network application

Common forms of network interfaces

Common data formats

General flow of interface development

2.NSURLConnection use

3.JSON format description and Formatting tools

Implementation of 41 completion pages (including model creation and sdwebimage use)

iOS Web data download and JSON parsing