CODEWITHSUNDEEP
objective-ciosnsurlconnectionasihttprequestreachability
Eyal
Eyal

Reputation: 10818

Objective C - Switching from WiFi to 3G and vice versa

I'm developing an iPhone app that uses the network. The iPhone communicate with my server via HTTP request and should work on WiFi and 3G.
I currently use NSURLConnection initWithRequest to send async requests to my server and get responses (but I will soon move to work with ASIHTTPRequest library)

One thing that I'm not sure about is,
What happens when user device goes from WiFi to 3G (or vice versa)?

I know that the same connection can't be used and new connection must be established.
But do I need to do something to handle this situation, or does NSURLConnection handle it automatically?
For example if I sent a request and in the middle of getting the response the connection changes, what will happen with this request?

I saw Apple's Reachability example code, and I know I can use Reachability to detect network changes, but not sure how to handle those changes.

Upvotes: 0

Views: 921

Answers (1)

Omar Abdelhafith
Omar Abdelhafith

Reputation: 21221

When the connection changes from 3G to WiFi, the current request will result in a failure status, and yes you will need to do something to re establish the connection (restart, resume, etc...)

Having said that, i am not sure, but i think ASIHTTPRequest has a mechanism to fix these issues when you for example request to download a file

Upvotes: 2

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