画像読み込みのために Kingfisher を導入

AikatsuLyric/ViewController.swift

@@ -7,6 +7,7 @@
 //
 
 import UIKit
+import Kingfisher
 
 class ViewController: UIViewController, UIWebViewDelegate {
 
@@ -31,7 +32,6 @@ class ViewController: UIViewController, UIWebViewDelegate {
 
     override func viewDidLoad() {
         super.viewDidLoad()
-        // Do any additional setup after loading the view, typically from a nib.
 
         self.automaticallyAdjustsScrollViewInsets = false
 
@@ -46,18 +46,9 @@ class ViewController: UIViewController, UIWebViewDelegate {
 
         // サムネイル画像
         if !data!.thumbnail_url.isEmpty {
-            let configuration = URLSessionConfiguration.default
-            let session = URLSession(configuration: configuration, delegate: nil, delegateQueue: OperationQueue.main)
-
-            let url = NSURL(string: data!.thumbnail_url)
-            let request = NSURLRequest(url: url as! URL)
-
-            session.dataTask(with: request as URLRequest, completionHandler: {
-                (data, response, err) in
-
-                let image = UIImage(data: data!)
-                self.songThumbnailImage.image = image
-            })
+            let url = URL(string: data!.thumbnail_url)
+            let placeholderImage = UIImage(named: "NoImage")
+            self.songThumbnailImage.kf.setImage(with: url, placeholder: placeholderImage)
         }
 
         // Youtube動画

Podfile

@@ -7,4 +7,5 @@ target 'AikatsuLyric' do
 
   # Pods for AikatsuLyric
   pod 'SwiftyJSON', '~> 3.0.0'
+  pod 'Kingfisher', '~> 3.0'
 end

Podfile.lock

@@ -1,12 +1,15 @@
 PODS:
+  - Kingfisher (3.4.0)
   - SwiftyJSON (3.0.0)
 
 DEPENDENCIES:
+  - Kingfisher (~> 3.0)
   - SwiftyJSON (~> 3.0.0)
 
 SPEC CHECKSUMS:
+  Kingfisher: 5690cfb3d1bddf3a98d679a3a34d0b7294974ed2
   SwiftyJSON: f57b2b44bc166617372d1c70773591fe9f0f5fd4
 
-PODFILE CHECKSUM: c8f77232ebe85cd5a9baadb2fa4777c0adac320c
+PODFILE CHECKSUM: 5b9ca8858dc02bf58f01528c7943c6c99f869fc4
 
 COCOAPODS: 1.2.0