Merge pull request #441 from noma4i/fix/ios-share-data-cache-pipeline

fix(ios): share data cache pipeline

Author: duguyihou

ios/TurboImageViewManager.swift

@@ -39,7 +39,7 @@ extension TurboImageViewManager {
     let key = UUID().uuidString
     var prefetcher: ImagePrefetcher?
     if(cachePolicy == "dataCache") {
-      prefetcher = ImagePrefetcher(pipeline: ImagePipeline(configuration: .withDataCache))
+      prefetcher = ImagePrefetcher(pipeline: CachePolicy.dataCachePipeline)
     } else {
       prefetcher = ImagePrefetcher()
     }
@@ -61,7 +61,7 @@ extension TurboImageViewManager {
   @objc
   func clearDiskCache(_ resolve: @escaping RCTPromiseResolveBlock,
                       reject: @escaping RCTPromiseRejectBlock) {
-    ImagePipeline(configuration: .withDataCache).cache.removeAll()
+    CachePolicy.dataCachePipeline.cache.removeAll()
     DataLoader.sharedUrlCache.removeAllCachedResponses()
     resolve("Success")
   }

ios/Utilities/CachePolicy.swift

@@ -4,12 +4,14 @@ import Nuke
 enum CachePolicy: String {
   case urlCache, dataCache
 
+  static let dataCachePipeline = ImagePipeline(configuration: .withDataCache)
+
   var pipeline: ImagePipeline {
     switch self {
     case .urlCache:
       return .shared
     case .dataCache:
-      return ImagePipeline(configuration: .withDataCache)
+      return Self.dataCachePipeline
     }
   }
 }