Determine iOS version for Twitter?

Question

Apparently my use of Twitter oAuth (request token) does not work in iOS 5 ... how can I save this code for anything below iOS 5 and use the new Twitter platform for iOS 5 +?

Is it possible to determine the version of iOS?

Thank!

Answer 1

You (almost) never want to request iOS versions (or even frameworks). This (usually) means that you are solving the wrong problem.

In this case, you really want to know "can I use the Twitter.framework function?"

Thanks to the magic of loose connection, you can try something like:

if ([TWTweetComposeViewController canSendTweet]) {
    // Do something
}
else {
    // Use your original code
}

You can also check the components of the lower level environment, for example:

if ([TWRequest class]) {
    // Do something
}
else {
    // Use your original code
}

(, Twitter.framework .)

Answer 2

if([[[UIDevice currentDevice] systemVersion] floatValue] >= 5.0) {
   //tweet
}

Answer 3

First of all, the other answers are correct: you should avoid using the iOS version number to check if functions exist.

HOWEVER: located in If you really have a good reason to check the version of iOS, my favorite response to test iOS version number fooobar.com/questions/8514 / ... . So elegant.

Answer 4

Determine if there is a Twitter class in installed os:

if (NSClassFromString(@"TWTweetComposeViewController")) {
   //use Twitter Framework
}

Remember to make the Twitter Framework option in the Framework list.