如何在Firebase存储中使用iOS存储全部在1条路径下的图像阵列Swift

我有2个视图，ViewOne和ViewTwo。如何在Firebase存储中使用iOS存储全部在1条路径下的图像阵列Swift

ViewOne内部有4个imageView插座和一个postButton。一旦用户按下postButton，所有图像将被发送到Firebase存储，然后从那里他们将被检索到显示在ViewTwo中。

Inside ViewTwo内部还有4个ImageView插座，用于接收从ViewOne发布到Firebase存储的图像。

使用Firebase存储我还是看不出在同一路径下存储多个映像。我了解如何将每个帖子的1张图片存储到存储中，然后访问它，但不是多张图片。

如何将多个图像作为数组存储在1路径下（ViewOne）？那么我如何访问所有这些图像（ViewTwo）？

顺便说一句我通过YouTube得到了viewTwo布赖恩Voong的真棒代码（自定义功能）：https://youtu.be/b1vrjt7Nvb0

这是图像URL字符串将进入类。我没有打扰到初始化。

class ImageData: NSObject{ 
var imageOneURL: String? 
var imageTwoURL: String? 
var imageThreeURL: String? 
var imageFourURL: String? 
}

这是imageViewOne。我没有添加ImagePicker代表，因为它似乎没有必要，但我知道如何使用它们。

import Firebase 

ImageViewOne:UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate{ 

@IBOutlet weak var imageViewONE: UIImageView! 
@IBOutlet weak var imageViewTWO: UIImageView! 
@IBOutlet weak var imageViewTHREE: UIImageView! 
@IBOutlet weak var imageViewFOUR: UIImageView! 

var images = [ImageData]() 

@IBAction func postButton(sender: UIButton){ 

//Unigue string for the images to be loaded under their own path 
let uniqueImageIDPath = NSUUID().UUIDString 

//Firebase Storage Ref 
let storageRef = FIRStorage.storage().reference().child("images/\(uniqueImageIDPath)") 

//Firebase Image to be stored. This is where I need help to store all the images at once. 
if let myImages = UIImageJPEGRepresentation(self.imageViewONE.image!, 0.1){ 
    storageRef.putData(myImages, metadata: nil, completion: { 

         (metadata, error) in 

         if error != nil{ 
          print(error?.localizedDescription) 
         } 

    if let myImageString = metadata?.downloadURL()?.absoluteString{ 

     let imageData = ImageData() 
     imageData.imageOne = myImageString 
     self.images.apped(imageData) 

     let values = ["imageOneURL": imageData.imageOne, "imageTwo":"?", "imageThree":"?", "imageFour":"?"] 

     let ref = FIRDatabase.database().reference().child("users") 
     ref.updateChildValues(values, withCompletionBlock: { 

       (error, user) in 

       if error != nil{ 
        print(error?.localizedDescription) 
       } 
      }) 
     } 
    } 
}

这是viewTwo

import Firebase 

ViewTwo: UIViewController{ 

@IBOutlet weak var imageViewONE: UIImageView! 
@IBOutlet weak var imageViewTWO: UIImageView! 
@IBOutlet weak var imageViewTHREE: UIImageView! 
@IBOutlet weak var imageViewFOUR: UIImageView! 

var imageOne: UIImage? 
var imageTwo: UIImage? 
var imageThree: UIImage? 
var imageFour: UIImage? 

override func viewWillAppear(animated: Bool) { 
     super.viewWillAppear(animated) 

    let ref = FIRDatabase.database().reference().child("users") 

    ref.observeEventType(.ChildAdded, withBlock: { 
      (snapshot) in 

      if let dict = snapshot.value as? [String: AnyObject]{ 
      let imageURLStr = dict["imageOneURL"] as? String 
      self.loadImageUsingCacheWithURLString(imageURLStr) 
    } 
} 

//Custom Function 
func loadImageUsingCacheWithURLString(urlString: String){ 

     let url = NSURL(string: urlString) 

     NSURLSession.sharedSession().dataTaskWithURL(url!, completionHandler: { 

      (data, response, error) in 

      if error != nil { 
       print(error?.localizedDescription) 
       return 
      } 

      dispatch_async(dispatch_get_main_queue(), { 

       if let displayImage = UIImage(data: data!){ 

        self.imageOne = displayImage! 
        self.imageViewOne.image = self.imageOne 
       } 

      }) 

     }).resume() 
    } 
}

来源

2016-08-23 Lance Samaria

原来火力地堡不会让您存储的任何阵列。获取每个图像的元数据url后，您将必须将每个图像单独保存在FBDatabase和FBStorage中。

来源

2017-01-06 18:19:19

如何在Firebase存储中使用iOS存储全部在1条路径下的图像阵列Swift

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