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