在上篇中出现了复用的问题，然后是用数组承接的，现在我换了一种方法

(1)自定义cell.h

@class MyTableViewCell;

//创建一个代理

@protocol myTabVdelegate <NSObject>

-(void)myTabVClick:(MyTableViewCell *)cell; //因为我要用这个来判定选中的cell

@end

@interface MyTableViewCell : UITableViewCell

//声明一个代码块

@property(strong,nonatomic)void(^btnClick)();

@property(strong,nonatomic)UIButton *btn;

@property(assign,nonatomic)id<myTabVdelegate>delegate;

@end

(2)cell.m的实现

#import "MyTableViewCell.h"

@implementation MyTableViewCell

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier

{

self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];

if (self) {

_btn = [UIButton buttonWithType:UIButtonTypeCustom];

_btn.frame = CGRectMake(10, 10, 100, 30);

[_btn setTitle:@"test" forState:UIControlStateNormal];

[_btn setBackgroundColor:[UIColor redColor]];

[_btn addTarget:self action:@selector(test:) forControlEvents:UIControlEventTouchUpInside];

[self addSubview:_btn];

}

return self;

}

//按钮事件

-(void)test:(UIButton *)sender

{

[self.delegate myTabVClick:self];

}

- (void)awakeFromNib

{

// Initialization code

}

- (void)setSelected:(BOOL)selected animated:(BOOL)animated

{

[super setSelected:selected animated:animated];

// Configure the view for the selected state

}

@end

(3)VC.m的实现

#import "ViewController.h"

#import "MyTableViewCell.h"

@interface ViewController ()

@property(nonatomic,strong)NSIndexPath *lastPath;

/*注释*/

@property (nonatomic,strong)MyTableViewCell *myCell;

@end

@implementation ViewController

- (void)viewDidLoad

{

[super viewDidLoad];

// Do any additional setup after loading the view, typically from a nib.

_tableV = [[UITableView alloc]initWithFrame:self.view.frame style:UITableViewStylePlain];

_tableV.delegate = self;

_tableV.dataSource = self;

[self.view addSubview:_tableV];

}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section

{

return 20;

}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{

static NSString *identify = @"identify";

MyTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identify];

if (!cell) {

cell = [[MyTableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identify];

}

//给代码赋值

cell.btnClick = ^(){

NSLog(@"222===%ld",indexPath.row);

};

//给代理赋值

cell.delegate = self;

NSInteger row = [indexPath row];

NSInteger oldRow = [_lastPath row];

if (row == oldRow && _lastPath!=nil)

{

[cell.btn setTitle:@"你好" forState:UIControlStateNormal];

}

else

{

[cell.btn setTitle:@"test" forState:UIControlStateNormal];

}

return cell;

}

//实现代理

-(void)myTabVClick:(MyTableViewCell *)cell

{

NSIndexPath *indexPath = [_tableV indexPathForCell:cell];

NSInteger newRow = [indexPath row];

NSInteger oldRow = (self .lastPath !=nil)?[self .lastPath row]:-1;

if (newRow != oldRow) {

self.myCell = [_tableV cellForRowAtIndexPath:indexPath];

[self.myCell.btn setTitle:@"你好" forState:UIControlStateNormal];

self.myCell = [_tableV cellForRowAtIndexPath:self .lastPath];

[self.myCell.btn setTitle:@"test" forState:UIControlStateNormal];

self .lastPath = indexPath;

}

}

- (void)didReceiveMemoryWarning

{

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

@end