Add kingfisher delete disk cache

Yep/Configs/YepHelper.swift

@@ -10,6 +10,8 @@ import Foundation
 import RealmSwift
 import Navi
 
+
+
 typealias CancelableTask = (cancel: Bool) -> Void
 
 extension String {
@@ -87,3 +89,28 @@ func isOperatingSystemAtLeastMajorVersion(majorVersion: Int) -> Bool {
     return NSProcessInfo().isOperatingSystemAtLeastVersion(NSOperatingSystemVersion(majorVersion: majorVersion, minorVersion: 0, patchVersion: 0))
 }
 
+extension String {
+    func stringByAppendingPathComponent(path: String) -> String {
+        return (self as NSString).stringByAppendingPathComponent(path)
+    }
+}
+
+
+func cleanDiskCacheFolder() {
+    
+    let folderPath = NSSearchPathForDirectoriesInDomains(.CachesDirectory, .UserDomainMask, true)[0]
+    let fileMgr = NSFileManager.defaultManager()
+    
+    guard let fileArray = try? fileMgr.contentsOfDirectoryAtPath(folderPath) else {
+        return
+    }
+    
+    for filename in fileArray  {
+        do {
+            try fileMgr.removeItemAtPath(folderPath.stringByAppendingPathComponent(filename))
+        } catch {
+            print(" clean error ")
+        }
+        
+    }
+}

Yep/ViewControllers/Profile/ProfileViewController.swift

@@ -12,6 +12,7 @@ import MonkeyKing
 import Navi
 import Crashlytics
 import SafariServices
+import Kingfisher
 
 let profileAvatarAspectRatio: CGFloat = 12.0 / 16.0
 
@@ -499,6 +500,17 @@ class ProfileViewController: UIViewController {
         
         syncMyInfoAndDoFurtherAction {
         }
+        
+        Kingfisher.ImageCache(name: "default").calculateDiskCacheSizeWithCompletionHandler({ (size) -> () in
+            let cacheSize = Double(size)/1000000
+            
+            println(String(format: "%.2f MB", cacheSize))
+            
+            if cacheSize > 300 {
+                 Kingfisher.ImageCache.defaultCache.clearDiskCache()
+            }
+            
+        })
 
         title = NSLocalizedString("Profile", comment: "")