我想上传每个图像的两个副本，一个完整尺寸和一个缩略图。我在SO和Firebase文档上寻找了答案。
使用以下代码，仅缩略图图像被保存到存储器。如何修复该问题，以便上传两个图像？显然，我还没有完全了解如何处理退货/关闭。帮助非常感谢！
当用户点击上传按钮时，将调用这一系列方法
self.uploadAndGetFullSizeImageDownloadURL(completion: { (url) in
print("Fullsize URL: \(url) is stored")
self.fullSizeDownloadURL = url
self.uploadAndGetThumbNailImageDownloadURL(completion: { (url) in
print("Thumbnail URL: \(url) is stored")
self.thumbNailDownloadURL = url
// Save image info to database
self.saveImageInfoToDatabase(fullSizeURL: self.fullSizeDownloadURL, thumbNailURL: self.thumbNailDownloadURL, completion: { (finished) in
...
})
})
})
上传和获取URL的方法如下：
func uploadAndGetFullSizeImageDownloadURL(completion: @escaping (String) -> Void) {
var fullUrlStr = ""
// Get imageData
let fullSizeImageData = self.getImageData(size: "fullSize")
// Upload fullsize image to storage
let fullSizeStorageRef = self.sRef.child("\(String(describing: uid!)), \(createdAt!)")
fullSizeStorageRef.putData(fullSizeImageData, metadata: nil, completion: {
(metadata, error) in
print("Fullsize image is stored")
// Get the fullsize downloadURL
fullSizeStorageRef.downloadURL(completion: { (url, error) in
if let downloadURL = url?.absoluteString {
fullUrlStr = downloadURL
//Return fullsize downloadURL
completion(fullUrlStr)
}
})
})
}