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Pods/MJExtension/MJExtension/MJPropertyKey.m

@@ -0,0 +1,25 @@
+//
+//  MJPropertyKey.m
+//  MJExtensionExample
+//
+//  Created by MJ Lee on 15/8/11.
+//  Copyright (c) 2015年 小码哥. All rights reserved.
+//
+
+#import "MJPropertyKey.h"
+
+@implementation MJPropertyKey
+
+- (id)valueInObject:(id)object
+{
+    if ([object isKindOfClass:[NSDictionary class]] && self.type == MJPropertyKeyTypeDictionary) {
+        return object[self.name];
+    } else if ([object isKindOfClass:[NSArray class]] && self.type == MJPropertyKeyTypeArray) {
+        NSArray *array = object;
+        NSUInteger index = self.name.intValue;
+        if (index < array.count) return array[index];
+        return nil;
+    }
+    return nil;
+}
+@end