[英]dataTaskWithRequest VS sendAsynchronousRequest in iOS8/9 using Objective-c
Having an app written in Objective-C targeting iOS8/9 there are real vantange in performance or stability updating code using NSURLSession 使用以iOS 8/9为目标的Objective-C编写的应用程序,使用NSURLSession在性能或稳定性更新代码方面确实存在优势
NSURLSession *session = [NSURLSession sharedSession];
[[session dataTaskWithRequest:request
completionHandler:^(NSData *data,
NSURLResponse *response,
NSError *error) {
dispatch_sync(dispatch_get_main_queue(), ^{
//UPDATE UI
});
}] resume];
in place of code like the following that use NSURLConnection: 代替使用NSURLConnection的以下代码:
[NSURLConnection sendAsynchronousRequest:request
queue:[CMRequestManager connectionQueue]
completionHandler:^(NSURLResponse *response,
NSData *data, NSError *connectionError)
{
dispatch_sync(dispatch_get_main_queue(), ^{
//UPDATE UI
});
}];
If you decide to run the code in a WatchKit extension or on tvOS at some point in the future, then yes. 如果您决定将来某个时候在WatchKit扩展程序或tvOS中运行代码,则可以。 Otherwise, if the snippet above is representative of the way you're using the API, then I probably wouldn't bother rewriting it.
否则,如果上面的代码段代表了您使用API的方式,那么我可能就不会再重写它了。 With that said, this is very much a matter of opinion.
话虽如此,这很大程度上是一个见解。
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