IOS。在不使用菜单显示的情况下将图像共享到 Instagram答案

【问题标题】：IOS. Sharing image to Instagram without using a menu displayIOS。在不使用菜单显示的情况下将图像共享到 Instagram
【发布时间】：2016-07-11 09:25:16
【问题描述】：

谁能帮助并解释如何在不显示菜单的情况下分享到 Instagram？例如，应用程序 Prisma 不使用菜单显示来执行此操作。

【问题讨论】：

你说的菜单是 UIActivityController 吗？
我的意思是 UIDocumentInteractionController。
我无法在此处访问此 instagram 文档，其中包含相关信息 instagram.com/developer/mobile-sharing/iphone-hooks/# 。您可以搜索“iPhone Instagram Hooks”了解更多信息。
谢谢，但我对这个指令很熟悉，这不是我要找的。span>

标签： ios instagram-api

【解决方案1】：

你必须这样做：

将照片保存到照片库
获取已保存照片的资产网址
使用此 URL 通过 URL Scheme 打开 Instagram

instagram://library?AssetPath=ASSET_PATH

其中 ASSET_PATH 是第二步获取的资产 url。

Swift 3 上的代码示例：

let library = ALAssetsLibrary()
library.writeImage(toSavedPhotosAlbum: image.cgImage, metadata: nil) { (url, error) in
    if let url = url {
        DispatchQueue.main.async {
            let path = url.absoluteString.addingPercentEncoding(withAllowedCharacters: NSCharacterSet.urlQueryAllowed)
            let instagram = URL(string: "instagram://library?AssetPath=\(path)")
            UIApplication.shared.open(instagram!)
        }
    }
}

【讨论】：

【解决方案2】：

我知道这是一个老问题，但我只是想为那些可能正在寻找的人提供一个更新的答案。

Vitaly Berg 采用了正确的方法，只是使用了已弃用的代码。这是对我有用的最新代码（Swift 5）：

@IBAction func instagramButtonClicked(_ sender: Any) {

            //check and see if we can save photos
            let status = PHPhotoLibrary.authorizationStatus()
            if (status == PHAuthorizationStatus.authorized) {
                // Access has been granted.
                self.shareToInstagram(theImage!)
            }else if (status == PHAuthorizationStatus.denied) {
                // Access has been denied.
                Notifications.showNotification("Please Allow Access To Photos To Share", style: .danger)
            }else if (status == PHAuthorizationStatus.notDetermined) {
                // Access has not been determined.
                PHPhotoLibrary.requestAuthorization({ (newStatus) in
                    if (newStatus == PHAuthorizationStatus.authorized) {
                        self.shareToInstagram(theImage!)
                    }else {
                        Notifications.showNotification("Please Allow Access To Photos To Share", style: .danger)
                    }
                })
            }else if (status == PHAuthorizationStatus.restricted) {
                // Restricted access - normally won't happen.
                Notifications.showNotification("Please Allow Access To Photos To Share", style: .danger)
            }
}


func shareToInstagram(_ theImageToShare: UIImage){
    self.saveToCameraRoll(image: theImageToShare) { (theUrl) in
        if let url = theUrl {
            DispatchQueue.main.async {
                if let path = url.absoluteString.addingPercentEncoding(withAllowedCharacters: NSCharacterSet.urlQueryAllowed){
                    let instagram = URL(string: "instagram://library?AssetPath=\(path)")
                    UIApplication.shared.open(instagram!)
                }
            }
        }
    }
}


func saveToCameraRoll(image: UIImage, completion: @escaping (URL?) -> Void) {
    var placeHolder: PHObjectPlaceholder? = nil
    PHPhotoLibrary.shared().performChanges({
        let creationRequest = PHAssetChangeRequest.creationRequestForAsset(from: image)
        placeHolder = creationRequest.placeholderForCreatedAsset!
    }, completionHandler: { success, error in
        guard success, let placeholder = placeHolder else {
            completion(nil)
            return
        }
        let assets = PHAsset.fetchAssets(withLocalIdentifiers: [placeholder.localIdentifier], options: nil)
        guard let asset = assets.firstObject else {
            completion(nil)
            return
        }
        asset.requestContentEditingInput(with: nil, completionHandler: { (editingInput, _) in
            completion(editingInput?.fullSizeImageURL)
        })
    })
}

希望这对某人有所帮助！

【讨论】：