图片仅在 swift 3 中的 whatsapp 上分享

Question

我只想在 whatsapp 上分享图片，但我使用的代码显示了其他在线分享平台，即 Messenger 和电子邮件。

我使用的代码：

    func share(shareText:String?,shareImage:UIImage?){

    var objectsToShare = [AnyObject]()

    if let shareTextObj = shareText{
        objectsToShare.append(shareTextObj as AnyObject)
    }

    if let shareImageObj = shareImage{
        objectsToShare.append(shareImageObj)
    }

    if shareText != nil || shareImage != nil{
        let activityViewController = UIActivityViewController(activityItems: objectsToShare, applicationActivities: nil)
        activityViewController.popoverPresentationController?.sourceView = self.view

        present(activityViewController, animated: true, completion: nil)
    }else{
        print("There is nothing to share")
    }
}

并分享

    let imageToShare = UIImage(named: "05")
    share(shareText: "", shareImage: imageToShare)

Answer 1

您无法隐藏 UIActivityViewController 中显示的所有选项，因为这取决于您分享的内容以及设备中安装的应用程序，但您可以像隐藏所有默认选项一样隐藏大部分选项像这样：

let activityController = UIActivityViewController(activityItems: sharingItems, applicationActivities: nil)

    activityController.excludedActivityTypes = [
        UIActivityType.assignToContact,
        UIActivityType.print,
        UIActivityType.addToReadingList,
        UIActivityType.saveToCameraRoll,
        UIActivityType.openInIBooks,
        UIActivityType(rawValue: "com.apple.reminders.RemindersEditorExtension"), 
        UIActivityType(rawValue: "com.apple.mobilenotes.SharingExtension"),
    ]

    present(activityController, animated: true, completion: nil)

或

如果您只想在 whatapp 中分享，那么这里是分享的方法。请参考下面url:

Share image/text through WhatsApp in an iOS app

Answer 2

通过在帕特里克先生的代码中添加一些额外的行，我减少了满足我需要的额外在线共享选项，如果有人面临同样的问题，我想分享给那些人。我使用下面的代码删除了除 WhatsApp 之外的所有其他共享选项，它只显示 WhatsApp 和更多在屏幕上共享的选项。谢谢

 func shareImg(){

    let activityViewController:UIActivityViewController = UIActivityViewController(activityItems: shareItems, applicationActivities: nil)
    activityViewController.excludedActivityTypes = [
        UIActivityType.postToTwitter,
        UIActivityType.postToWeibo,
        UIActivityType.message,
        UIActivityType.mail,
        UIActivityType.print,
        UIActivityType.copyToPasteboard,
        UIActivityType.assignToContact,
        UIActivityType.saveToCameraRoll,
        UIActivityType.addToReadingList,
        UIActivityType.postToFlickr,
        UIActivityType.postToVimeo,
        UIActivityType.postToTencentWeibo,
        UIActivityType.airDrop
    ]
    self.present(activityViewController, animated: true, completion: nil)

    activityViewController.completionWithItemsHandler = {(activityType: UIActivityType?, completed: Bool, returnedItems: [Any]?, error: Error?) in
        if !completed {

            print("User canceled")
            self.shareItems.removeAll()
            return
        }

        print("share successfully")

      }
  }

图片仅在 swift 3 中的 whatsapp 上分享

Image share only on whatsapp in swift 3

ios

whatsapp

swift

或