README.md

UITableViewWithUICollectionView

UITableView和UICollectionView联动

//模型转字典,数组 #import <Foundation/Foundation.h>

@protocol KeyValue

@optional /**

• 数组中需要转换的模型类
• @return 字典中的key是数组属性名，value是数组中存放模型的Class（Class类型或者NSString类型） */

• (NSDictionary *)objectClassInArray;

/**

• 将属性名换为其他key去字典中取值
• @return 字典中的key是属性名，value是从字典中取值用的key */

• (NSDictionary *)replacedKeyFromPropertyName;

@end

@interface NSObject (Kit)

+(instancetype)objectWithDictionary:(NSDictionary *)dictionary;

@end

#import "NSObject+Kit.h" #import <objc/runtime.h> @implementation NSObject (Kit)

• (instancetype)objectWithDictionary:(NSDictionary *)dictionary {

  id obj = [[self alloc] init];

  // 获取所有的成员变量 unsigned int count; Ivar *ivars = class_copyIvarList(self, &count);

  for (unsigned int i = 0; i < count; i++) { Ivar ivar = ivars[i];

    // 取出的成员变量，去掉下划线
    NSString *ivarName = [NSString stringWithUTF8String:ivar_getName(ivar)];
    NSString *key = [ivarName substringFromIndex:1];
    
    id value = dictionary[key];
    
    // 当这个值为空时，判断一下是否执行了replacedKeyFromPropertyName协议，如果执行了替换原来的key查值
    if (!value)
    {
        if ([self respondsToSelector:@selector(replacedKeyFromPropertyName)])
        {
            NSString *replaceKey = [self replacedKeyFromPropertyName][key];
            value = dictionary[replaceKey];
        }
    }
    
    // 字典嵌套字典
    if ([value isKindOfClass:[NSDictionary class]])
    {
        NSString *type = [NSString stringWithUTF8String:ivar_getTypeEncoding(ivar)];
        NSRange range = [type rangeOfString:@"\""];
        type = [type substringFromIndex:range.location + range.length];
        range = [type rangeOfString:@"\""];
        type = [type substringToIndex:range.location];
        Class modelClass = NSClassFromString(type);
        
        if (modelClass)
        {
            value = [modelClass objectWithDictionary:value];
        }
    }
    
    // 字典嵌套数组
    if ([value isKindOfClass:[NSArray class]])
    {
        if ([self respondsToSelector:@selector(objectClassInArray)])
        {
            NSMutableArray *models = [NSMutableArray array];
            
            NSString *type = [self objectClassInArray][key];
            Class classModel = NSClassFromString(type);
            for (NSDictionary *dict in value)
            {
                id model = [classModel objectWithDictionary:dict];
                [models addObject:model];
            }
            value = models;
        }
    }
    
    if (value)
    {
        [obj setValue:value forKey:key];
    }
  

  }

  // 释放ivars free(ivars);

  return obj; }

@end