TableView 优化 分离DataSource

TableViewDelegateAdDataSource.h:

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>

typedef void(^cellConfigBlock)(UITableViewCell *cell,id item);

@interface TableViewDelegateAdDataSource : NSObject <UITableViewDelegate,UITableViewDataSource>


@property (strong,nonatomic)NSArray *items;

@property (nonatomic,copy)NSString *identfiers;

@property (copy,nonatomic)cellConfigBlock configBlock;


- (instancetype)initWithItems:(id)items
       cellIdentifier:(NSString *)cellIdentifier
          configBlock:(cellConfigBlock)block;

- (id)indexForTableView:(NSInteger)row;


@end

TableViewDelegateAdDataSource.m:

#import "TableViewDelegateAdDataSource.h"

@implementation TableViewDelegateAdDataSource

- (instancetype)initWithItems:(id)items cellIdentifier:(NSString *)cellIdentifier configBlock:(cellConfigBlock)block{
    if (self = [super init]) {
        self.items = items;
        self.identfiers = cellIdentifier;
        self.configBlock = [block copy];
    }
    return self;
}

- (id)indexForTableView:(NSInteger)row{
    return _items[row];
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    return _items.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:_identfiers];
    if (!cell) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:_identfiers];
    }
    id item = [self indexForTableView:indexPath.row];
    !self.configBlock ?:self.configBlock(cell,item);
    return cell;
}
@end

VC:

#import "ViewController.h"
#import "TableViewDelegateAdDataSource.h"

@interface ViewController ()<UITableViewDelegate>
@property (weak, nonatomic) IBOutlet UITableView *tableView;

@property (strong,nonatomic)TableViewDelegateAdDataSource *obj;

@end

@implementation ViewController


- (void)viewDidLoad {
    [super viewDidLoad];
    [self setUpTableView];
}

- (void)setUpTableView{
    cellConfigBlock configBlock = ^(UITableViewCell *cell,id item){
        cell.textLabel.text = (NSString *)item;
    };
    
    self.obj = [[TableViewDelegateAdDataSource alloc]initWithItems:@[@"1",@"2",@"3",@"4",@"5",@"6"] cellIdentifier:@"cellIdentifiers" configBlock:configBlock];
    
    self.tableView.dataSource = self.obj;
    
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
    [tableView deselectRowAtIndexPath:indexPath animated:YES];
}

没有对代理方法进行封装，方法都是一样的。
看了网上的博客，自己练练手，^..