发布到 instagram-stories 时清除 SwiftUI UIPasteboard答案

【问题标题】：SwiftUI UIPasteboard is cleared when posting to instagram-stories发布到 instagram-stories 时清除 SwiftUI UIPasteboard
【发布时间】：2022-08-18 23:26:30
【问题描述】：

我正在从我的应用程序中发布 Instagram 故事，它运行良好。但是，当我在存储 URL 的位置添加 UIPasteboard 字符串值时，将其粘贴到 instagram 链接时它会被清除。我注意到 Instagram 在启动时正在清除粘贴板项目。有什么方法可以将粘贴板项目保留在 Instagram 中？这是我的代码 sn-p：

let urlScheme = URL(string:\"instagram-stories://share\")!
if UIApplication.shared.canOpenURL(urlScheme) {

    UIPasteboard.general.string = Global.hostURL // THIS GETS CLEARED
    
    let pasteBoardItems:Array<[String:Any]> = [
        [\"com.instagram.sharedSticker.backgroundImage\" : background.pngData()!]
    ]
    
    let expirationDate = Date().addingTimeInterval(60 * 5)
    let pasteBoardOptions = [UIPasteboard.OptionsKey.expirationDate: expirationDate]
    UIPasteboard.general.setItems(pasteBoardItems, options: pasteBoardOptions)
    
    UIApplication.shared.open(urlScheme)
}

标签： ios swift uipasteboard instagram-story

【解决方案1】：

UIPasteboard.general.setItems(pasteBoardItems, options: pasteBoardOptions)
UIApplication.shared.open(shareURL, options: [:])
DispatchQueue.main.asyncAfter(deadline: .now() + 0.1) {
    UIPasteboard.general.string = url.absoluteString
   // ☝️.setItems again 0.1s after opening Instagram.
  // or 0.2s, 0.25, 0.3 play around with it until it works.
  // Try to get a value that works 10/10 times. 0.1s wasn't as reliable as 0.2s

}

替代解决方案是 UIApplication.shared.open(shareURL, options: [:])

在应用程序委托的applicationDidEnterBackground 中运行UIPasteboard.general.string = url.absoluteString

或者在 SwiftUI 的新生命周期中

.onChange(of: scenePhase) { scenePhase in
            switch scenePhase {
            case .background:
                    UIPasteboard.general.string = url.absoluteString
                }

【讨论】：