如何在自家应用内直接唤起微信Share Extension

UIActivity​View​Controller

我们得先来看看UIActivity​View​Controller，我们在Safari看到的分享面板就是这玩意儿咯。唤起share extension 都是通过UIActivityViewController。

SLComposeViewController

这个是微信Share Extension弹框的VC。 这个类composeViewControllerForServiceType的方法，通过名字直接拿到对应VC。微信分享组件的名字不方便透露，大家可以通过对UIActivityViewController回调方法的研究拿到。

NSString* serviceName = @"........";
SLComposeViewController* myController = [SLComposeViewController composeViewControllerForServiceType:serviceName];
[myController setInitialText:@"Hello World"];
[[self navigationController] presentViewController:myController animated:YES completion:nil];";
SLComposeViewController* myController = [SLComposeViewController composeViewControllerForServiceType:serviceName];
[myController setInitialText:@"Hello World"];
[[self navigationController] presentViewController:myController animated:YES completion:nil];

用下面两个方法，带上自己的图片或者url。

// Adds an image to the post. Returns NO if the additional image will not fit
// within the character space currently available, or if the sheet has already
// been presented to the user.
- (BOOL)addImage:(UIImage *)image;

// Adds a URL to the post. Returns NO if the additional URL will not fit
// within the character space currently available, or if the sheet has already
// been presented to the user.
- (BOOL)addURL:(NSURL *)url;