使用UIActivityViewController分享图片

Question

使用UIActivityViewController分享图片

3

我正在使用UIActivityViewController共享内容，但是共享的文件名不同（随机命名）。当我与Photos应用程序分享时，它会使用真实名称共享图像。我的问题是：如何使用UIActivityViewController共享带有其名称的图像？

回答：大家好，是的，我得到了答案。首先，在docuementDirectory中保存图像，然后共享图像链接。请确保共享图像链接（在docuement目录中保存的图像）而不是图像本身。

@IBAction func shareImage(_ sender: UIButton) {

    var selectedImageArrayToShare:Array<NSURL> = [NSURL]()
    selectedImageArrayToShare.append(saveActivityControllerImage())
   let activityViewController:UIActivityViewController = UIActivityViewController(activityItems: selectedImageArrayToShare as [Any], applicationActivities: nil)
    self.present(activityViewController, animated: true, completion: nil)
}


func saveActivityControllerImage() -> NSURL {

    var name:String=selectedPhotoName!.capitalized
    print(name.components(separatedBy: ".").last as Any)
    if name.components(separatedBy: ".").last!.lowercased() != "png" {
        name = name.replacingOccurrences(of: ".\(name.components(separatedBy: ".").last!)", with: ".jpg")
    }
    else {
        name = name.replacingOccurrences(of: ".\(name.components(separatedBy: ".").last!)", with: ".png")
    }
    let urlString : NSURL = getDocumentDirectoryPath(fileName: name)
    print("Image path : \(urlString)")
    if !FileManager.default.fileExists(atPath: urlString.absoluteString!) {
        do {
            var isSaved : Bool = false
            print(urlString.pathExtension as Any)
            if urlString.pathExtension?.lowercased() == "png" {
                isSaved = ((try  UIImagePNGRepresentation(photoPreviewImageView.image!)?.write(to: urlString as URL, options: Data.WritingOptions.atomic)) != nil)
            }
            else {
                isSaved = ((try  UIImageJPEGRepresentation(photoPreviewImageView.image!, 1.0)?.write(to: urlString as URL, options: Data.WritingOptions.atomic)) != nil)
            }

            if (isSaved) {
                return urlString

            } else {
                return NSURL.fileURL(withPath: "Blank") as NSURL
            }
        } catch {
            return NSURL.fileURL(withPath: "Blank") as NSURL
        }
    }
    return urlString
}

函数getDocumentDirectoryPath(fileName:String) -> 返回NSURL类型的路径。

    let paths:NSArray = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true) as NSArray
    let docuementDir:NSString = paths.object(at: 0) as! NSString
    return NSURL.fileURL(withPath: docuementDir.appendingPathComponent("NameIt/\(fileName)")) as NSURL
}

- Rohit Sunny

1

在大多数情况下，发布您的代码是有帮助的... - yakobom

欢迎来到SO，请花些时间查看以下内容并发布可验证的代码：https://stackoverflow.com/help/how-to-ask - garfbradaz

1个回答

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- BHAVIK · Answer 1

像这样分享

 let activityItem: [AnyObject] = [self.imageView.image as! AnyObject]

        let avc = UIActivityViewController(activityItems: activityItem as [AnyObject], applicationActivities: nil)

        self.presentViewController(avc, animated: true, completion: nil)