使用 UIActivityViewController 共享图像

Posted 2023-02-23

【中文标题】使用 UIActivityViewController 共享图像

【英文标题】：Share an image using UIActivityViewController

【发布时间】：2015-03-22 21:34:28

【问题描述】：

我想使用UIActivityViewController 分享图像。我能够显示我想分享的文本，但我真的不知道如何添加图像。希望有人可以帮助我。谢谢！

我的代码显示在“actionButton”下

import UIKit

class DetailViewController: UIViewController, UIScrollViewDelegate 

    @IBOutlet weak var scrollView: UIScrollView!
    @IBOutlet weak var myDetailedImageView: UIImageView!

    var myDetailedImageName: String?
    var nameString: String?

    override func prefersStatusBarHidden() -> Bool 
        return true
    

    override func viewDidLoad() 
        super.viewDidLoad()
        //For setting max and min zoom
        scrollView.maximumZoomScale = 0.8
        scrollView.minimumZoomScale = 0.15
        scrollView.delegate = self
        //reset zoomzcale for new image
        self.scrollView.zoomScale = 0.15
        self.myDetailedImageView.image = UIImage(named: myDetailedImageName!)
    

    @IBAction func actionButton(sender: AnyObject) 
        let firstActivityItem = NSString(string: myDetailedImageName!)
        let activityViewController : UIActivityViewController = UIActivityViewController(activityItems: [firstActivityItem], applicationActivities: nil)
        self.presentViewController(activityViewController, animated: true, completion: nil)
    

    //Showing what to zoom/scroll
    func viewForZoomingInScrollView(scrollView: UIScrollView) -> UIView? 
        //returning image to reload it self
        return myDetailedImageView
    

    override func didReceiveMemoryWarning() 
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    

【参考方案1】：

就像文字一样：

let activityViewController = UIActivityViewController(activityItems: [firstActivityItem, self.myDetailedImageView.image!], applicationActivities: nil)

【讨论】：

它仍然给我一个错误说：不能使用类型为“（activityitems：$T4，applicationActivities：NilLiteralConveritble）”的参数列表调用“init”

@MariusHegg 请查看编辑后的答案 (self.myDetailedImageView.image!)