从NSSharingService扩展调用FinderSync

Question

我试图从我的FinderSync扩展发送一封电子邮件(打开默认的邮件客户端应用程序)。

        let service = NSSharingService(named: NSSharingService.Name.composeEmail)
        if(service != nil)
        {
            service!.recipients = ["test@gmail.com"]
            service!.subject = "Test Mail"
           if service!.canPerform(withItems: ["Test Mail body"])
           {
                service!.perform(withItems: ["Test Mail body"])
           }
           else
           {
                  //fail for me
          }
        }

相同的代码在启动主应用程序时从AppDelegate/ViewController执行，但在从扩展调用时不工作。

Answer 1

FinderSync是不允许使用NSSharingService的NSExtension

/* @class SHKSharingService (ShareKit.framework) */  

-(char)canPerformWithItems:(NSArray *)items {
    if (([[SHKSharingService class] isShareKitPlugInService] || ([items count] > 0x1388)) {
    return NO;
}

isShareKitPlugInService被定义为

[[NSBundle mainBundle] infoDictionary][@"NSExtension"]