#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>typedef void (^selectCell) (NSIndexPath *indexPath);
/***  代理对象(UITableView的协议需要声明在.h文件中，不然外界在使用的时候会报黄色警告，看起来不太舒服)*/
@interface TableViewDelegateObj : NSObject <UITableViewDelegate, UITableViewDataSource>/***  创建代理对象实例，并将数据列表传进去*  代理对象将消息传递出去，是通过block的方式向外传递消息的*  @return 返回实例对象*/
+ (instancetype)createTableViewDelegateWithDataList:(NSArray *)dataListselectBlock:(selectCell)selectBlock;
@end

#import "TableViewDelegateObj.h"@interface TableViewDelegateObj ()
@property (nonatomic, strong) NSMutableArray   *dataList;
@property (nonatomic, copy)   selectCell selectBlock;
@end@implementation TableViewDelegateObj+ (instancetype)createTableViewDelegateWithDataList:(NSMutableArray *)dataListselectBlock:(selectCell)selectBlock {return [[[self class] alloc] initTableViewDelegateWithDataList:dataListselectBlock:selectBlock];
}- (instancetype)initTableViewDelegateWithDataList:(NSMutableArray *)dataList selectBlock:(selectCell)selectBlock {self = [super init];if (self) {self.dataList = dataList;self.selectBlock = selectBlock;}return self;
}- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {static NSString *identifier = @"cell";UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];if (!cell) {cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier];}cell.textLabel.text = self.dataList[indexPath.row];return cell;
}- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {return self.dataList.count;
}- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {[tableView deselectRowAtIndexPath:indexPath animated:NO];// 将点击事件通过block的方式传递出去self.selectBlock(indexPath);
}

#import "ViewController.h"
#import "TableViewDelegateObj.h"
@interface ViewController ()
@property (strong, nonatomic) NSMutableArray * arr_test;
@property (strong, nonatomic) TableViewDelegateObj * tbd_obj;
@end@implementation ViewController- (void)viewDidLoad {[super viewDidLoad];self.arr_test = [NSMutableArray arrayWithObjects:@"索马里猫",@"土耳其梵猫",@"美国短毛猫", nil];self.tbd_obj = [TableViewDelegateObj createTableViewDelegateWithDataList:self.arr_testselectBlock:^(NSIndexPath *indexPath) {NSLog(@"第%@行",indexPath);}];self.tb_test.delegate = self.tbd_obj;self.tb_test.dataSource = self.tbd_obj;//增加延时看下效果[self performSelector:@selector(reloadDataFromNewREquest) withObject:nil afterDelay:2.0];}- (void)reloadDataFromNewREquest
{[self.arr_test addObject:@"非洲薮猫"];[self.tb_test reloadData];
}- (NSMutableArray *)arr_test
{if (!_arr_test) {_arr_test = [[NSMutableArray alloc]init];}return _arr_test;
}