update to support swift4+

gaoyinhui · Sep 20, 2018 · d7d73bc · d7d73bc
1 parent 05c6fca
commit d7d73bc
Showing 1 changed file with 8 additions and 2 deletions.
diff --git a/Source/iOS/UIImage+Extensions.swift b/Source/iOS/UIImage+Extensions.swift
@@ -22,8 +22,14 @@ extension UIImage {
 
   /// Convert to data
   func cache_toData() -> Data? {
+    #if swift(>=4.2)
     return hasAlpha
-      ? self.pngData()
-      : self.jpegData(compressionQuality: 1.0)
+      ? pngData()
+      : jpegData(compressionQuality: 1.0)
+    #else
+    return hasAlpha
+      ? UIImagePNGRepresentation(self)
+      : UIImageJPEGRepresentation(self, 1.0)
+    #endif
   }
 }