Network Programming for iOS development-1. Basic use of NSURLSession and iosnsurlsession

Network Programming for iOS development-1. Basic use of NSURLSession and iosnsurlsession

Before learning how to use NSURLSession, I should first learn a good article about NSURLSession, From NSURLConnection to NSURLSession, or a Chinese translation From NSURLConnection to NSURLSession. alternatively, you can directly learn "from NSURLConnection to NSURLSession" without learning your blog garden notes. This article gives a detailed description of the use of NSURLSession. However, this article first gives a rough introduction to the basic NSURLSession and basic network request usage for my forgotten review ????.

 

Learn about NSURLSessionTask:

NSURLSessionTask is required to use NSURLSession. Therefore, we need to know the relationship between the class of the Task and its subclass:

　　　　

English decoding ?? : Session Task

New Code knowledge:

NSURLSession:

-(NSURLSessionDataTask *) dataTaskWithRequest creates a task based on the request object

-(NSURLSessionDataTask *) dataTaskWithURL creates a task based on the requested URL

 

NSURLSessionDataTask:

-(Void) resume starts to execute the task

　　

Basic code Display (using NSURLSessionDataTask ):

Code display using the proxy method:

 

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