Tuesday, December 4, 2012

iOS 6's Social Network integration

First thing I want to say: Really appreciate Apple for putting efforts to embed the social sharing functions into the iOS SDK 6.0. You know what, thousands of lines of code I used to do social sharing can be totally deleted now. Wow! It can be just less than 10 lines of code now.

To bring out the Sharing Panel above, we just need to write the code:

- (IBAction) shareButtonClicked:(id)sender{
    NSString *textToShare = @"Hello World!";
    UIImage *imageToShare = [UIImage imageNamed:@"ss.jpg"];
    NSArray *activityItems = @[textToShare, imageToShare];
    UIActivityViewController *activityVC =
    [[UIActivityViewController alloc] initWithActivityItems:activityItems
    [self presentViewController:activityVC animated:YES completion:nil];

UIActivityViewController is under UIKit, so we don't need to include any framework. What we did here was to supply the activitiyVC with a string and an image, and leave all the rest to UIActivityViewController.

Sometimes, we may not provide the sharing panel to user. If we just want to present user the facebook sharing, then we can simply user the following code:

- (IBAction)facebookShare:(id)sender{
    // need include social.framework
    SLComposeViewController *facebookPostVC=[SLComposeViewController composeViewControllerForServiceType:SLServiceTypeFacebook];
    // You can have other servicetypes for Weibo, Twitter.

    [facebookPostVC setInitialText:@"Hello World!"];
    [facebookPostVC addImage:[UIImage imageNamed:@"ss.jpg"]];
    [self presentViewController:facebookPostVC animated:YES completion:nil];


Very similarly, very simple codes...You will get something as following directly. As I comment in the code, we can do the same way for Twitter and Weibo. To use SLComposeViewController, we need to include Social.framework

Very simple right. I love this. However, we have to realize the drawbacks. Good things don't come out without cost... Doing this way, we have no more deep link to Facebook, no need to create App on developers.facebook. So people won't see the feed comes from your App.