如何在Firebase存儲中使用iOS存儲全部在1條路徑下的圖像陣列Swift

我有2個視圖，ViewOne和ViewTwo。如何在Firebase存儲中使用iOS存儲全部在1條路徑下的圖像陣列Swift

ViewOne內部有4個imageView插座和一個postButton。一旦用戶按下postButton，所有圖像將被髮送到Firebase存儲，然後從那裏他們將被檢索到顯示在ViewTwo中。

Inside ViewTwo內部還有4個ImageView插座，用於接收從ViewOne發佈到Firebase存儲的圖像。

使用Firebase存儲我還是看不出在同一路徑下存儲多個映像。我瞭解如何將每個帖子的1張圖片存儲到存儲中，然後訪問它，但不是多張圖片。

如何將多個圖像作爲數組存儲在1路徑下（ViewOne）？那麼我如何訪問所有這些圖像（ViewTwo）？

順便說一句我通過YouTube得到了viewTwo布賴恩Voong的真棒代碼（自定義功能）：https://youtu.be/b1vrjt7Nvb0

這是圖像URL字符串將進入類。我沒有打擾到初始化。

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

這是imageViewOne。我沒有添加ImagePicker代表，因爲它似乎沒有必要，但我知道如何使用它們。

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) 
       } 
      }) 
     } 
    } 
}

這是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() 
    } 
}

來源

2016-08-23 Lance Samaria

原來火力地堡不會讓您存儲的任何陣列。獲取每個圖像的元數據url後，您將必須將每個圖像單獨保存在FBDatabase和FBStorage中。

來源

2017-01-06 18:19:19

如何在Firebase存儲中使用iOS存儲全部在1條路徑下的圖像陣列Swift

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