share-extension.md

Share Extension

Info.plist

NSExtensionActivationRule

分享支持的格式，有对应的 key 表示支持，没有或者值为 false 表示不支持

• NSExtensionActivationSupportsAttachmentsWithMaxCount
• NSExtensionActivationSupportsAttachmentsWithMinCount
• NSExtensionActivationSupportsFileWithMaxCount
• NSExtensionActivationSupportsImageWithMaxCount
• NSExtensionActivationSupportsMovieWithMaxCount
• NSExtensionActivationSupportsText
• NSExtensionActivationSupportsWebURLWithMaxCount
• NSExtensionActivationSupportsWebPageWithMaxCount

SLComposeServiceViewController

分享界面，如果要完全自定义界面，可以换成 UIViewController

打开 Host App

参考 openURL:completionHandler: NSExtensionContext 的 openURL:completionHandler: 只支持 Today widget。

所以采用下面的方式：

- (void)openHostApp {
    UIResponder *responder = self;
    SEL selector = NSSelectorFromString(@"openURL:");
    while (responder) {
        if ([responder respondsToSelector:selector]) {
            [responder performSelector:selector withObject:[NSURL URLWithString:@"example://"]];
            break;
        } else {
            responder = responder.nextResponder;
        }
    }
    [self.extensionContext completeRequestReturningItems:@[] completionHandler:nil];
}

References

• App Extension Programming Guide - Share