Ios 在 Swift 中与 UIActivityViewController 共享文本或图像的基本示例

发布于03月11日

我开始搜索是想知道如何在iOS中与其他应用共享.我发现有两个重要的方法

UIActivityViewController
UIDocumentInteractionController个

这些方法和其他方法在this SO answer例中进行了比较.

通常，当我在学习一个新概念时，我喜欢看到一个基本的例子来开始我的学习.一旦我完成了一些基本设置，我可以稍后按我喜欢的方式修改它.

有很多关于UIActivityViewController的问题，但我找不到任何问题，只是为了举一个简单的例子.由于我刚刚学会如何做到这一点，我将在下面提供我自己的答案.您可以随意添加更好的版本(或Objective-C版本).

UIActivityViewController示例项目

用两个按钮设置故事板，并将它们连接到视图控制器(参见下面的代码).

将图像添加到Assets.xcsets.我把我的叫作"狮子".

密码

import UIKit
class ViewController: UIViewController {
    
    // share text
    @IBAction func shareTextButton(_ sender: UIButton) {
        
        // text to share
        let text = "This is some text that I want to share."
        
        // set up activity view controller
        let textToShare = [ text ]
        let activityViewController = UIActivityViewController(activityItems: textToShare, applicationActivities: nil)
        activityViewController.popoverPresentationController?.sourceView = self.view // so that iPads won't crash
        
        // exclude some activity types from the list (optional)
        activityViewController.excludedActivityTypes = [ UIActivity.ActivityType.airDrop, UIActivity.ActivityType.postToFacebook ]
        
        // present the view controller
        self.present(activityViewController, animated: true, completion: nil)
        
    }
    
    // share image
    @IBAction func shareImageButton(_ sender: UIButton) {
        
        // image to share
        let image = UIImage(named: "Image")
        
        // set up activity view controller
        let imageToShare = [ image! ]
        let activityViewController = UIActivityViewController(activityItems: imageToShare, applicationActivities: nil)
        activityViewController.popoverPresentationController?.sourceView = self.view // so that iPads won't crash
        
        // exclude some activity types from the list (optional)
        activityViewController.excludedActivityTypes = [ UIActivity.ActivityType.airDrop, UIActivity.ActivityType.postToFacebook ]
        
        // present the view controller
        self.present(activityViewController, animated: true, completion: nil)
    }
    
}