[iOS 개발] iOS 목록 페이지 데이터 관리

//
//  DataList.h
//  PageControlDemo
//
//  Created by brant on 2016/12/6.
//  Copyright © 2016  wushujun. All rights reserved.
//

#import 

@interface DataList : NSObject

@property (nonatomic) NSInteger currentPage;            //     
@property (nonatomic, strong) NSMutableArray *list;     //   list
@property (nonatomic) BOOL haveMore;                    //       
@property (nonatomic) BOOL isRefresh;                   //        ，       ，        

/**
               model   list 
 
               ,          
 
 @param array       
 */
- (void)loadDataFromArray:(NSArray *)array;

/**
       

 @param index      
 @return         ，     nil
 */
- (id)objectAtIndex:(NSInteger)index;

/**
           

 @param object       
 */
- (void)addObject:(id)object;

/**
        
 */
- (void)removeAll;

@end

//
//  DataList.m
//  PageControlDemo
//
//  Created by brant on 2016/12/6.
//  Copyright © 2016  wushujun. All rights reserved.
//

#import "DataList.h"

@implementation DataList

/**
               model   list 
 
               ,          

 @param array       
 */
- (void)loadDataFromArray:(NSArray *)array {
    
    _currentPage++;
    
    //      ，     ，    
    if (_isRefresh) {
        [self removeAll];
        self.currentPage = 0; //        ，    1
    }
    
    if (array == nil || array.count <= 0) {
        _haveMore = NO;
        return;
    }
}

- (id)objectAtIndex:(NSInteger)index {
    if (self.list.count > index) {
        return self.list[index];
    }
    
    return nil;
}

- (void)addObject:(id)object {
    [self.list addObject:object];
}

- (void)removeAll {
    if (_list) {
        [_list removeAllObjects];
    }
}

# pragma mark - getters

- (NSMutableArray *)list {
    if (!_list) {
        _list = [[NSMutableArray alloc] init];
    }
    
    return _list;
}

@end

//
//  UserList.m
//  PageControlDemo
//
//  Created by sjwu on 2016/12/6.
//  Copyright © 2016  wushujun. All rights reserved.
//

#import "UserList.h"
#import "User.h"

@implementation UserList

- (void)loadDataFromArray:(NSArray *)array {
    [super loadDataFromArray:array];
    
    //    array   
    if (array.count > 0) {
        for (NSDictionary *dic in array) {
            User *user = [User new];
            //      user   
            [user loadDataFromDictionary:dic];
            [self.list addObject:user];
        }
    }
}

@end