UITableView中se定制ction的展开和收起

项目介绍：

iOS开发,UITableView中section的展开和收起;

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iOS频道(iOSPD): 这是我个人整理的一个技术专题, 这里的文章都是比较有技术含量(不断更新)!

代码区域#import 'ViewController.h' @interface ViewController ()<UITableViewDataSource,UITableViewDelegate> @property (nonatomic,strong)UITableView *tableView; @property (nonatomic,strong)NSMutableArray *sectionArray; @property (nonatomic,strong)NSMutableArray *flagArray; @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; [self makeData]; _tableView = [[UITableView alloc] initWithFrame:self.view.frame style:UITableViewStyleGrouped]; _tableView.delegate = self; _tableView.dataSource = self; [self.view addSubview:_tableView]; // Do any additional setup after loading the view, typically from a nib. } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } /** * 处理数据 _sectionArray里面存储数组 */ - (void)makeData{ _sectionArray = [NSMutableArray array]; _flagArray = [NSMutableArray array]; NSInteger num = 6; for (int i = 0; i < num; i ++) { NSMutableArray *rowArray = [NSMutableArray array]; for (int j = 0; j < arc4random()%20 + 1; j ++) { [rowArray addObject:[NSString stringWithFormat:@'%d',j]]; } [_sectionArray addObject:rowArray]; [_flagArray addObject:@'0']; } } //设置组数 - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{ return _sectionArray.count; } //设置行数 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{ NSArray *arr = _sectionArray[section]; return arr.count; } //组头高度 -(CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section{ return 44; } //cell的高度 - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{ if ([_flagArray[indexPath.section] isEqualToString:@'0']) return 0; else return 44; } //组头 - (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section{ UILabel *sectionLabel = [[UILabel alloc] init]; sectionLabel.frame = CGRectMake(0, 0, self.view.frame.size.width, 444); sectionLabel.textColor = [UIColor orangeColor]; sectionLabel.text = [NSString stringWithFormat:@'组%d',section]; sectionLabel.textAlignment = NSTextAlignmentCenter; sectionLabel.tag = 100 + section; sectionLabel.userInteractionEnabled = YES; sectionLabel.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@'itembg.png']]; UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(sectionClick:)]; [sectionLabel addGestureRecognizer:tap]; return sectionLabel; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ static NSString *identify = @'Cell'; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identify]; if (cell == nil) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:identify]; } cell.textLabel.text= [NSString stringWithFormat:@'第%d组的第%d个cell',indexPath.section,indexPath.row]; cell.clipsToBounds = YES;<span style='font-size:18px;color:#ff0000;'><strong>//这句话很重要 不信你就试试</strong></span> return cell; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{ SectionViewController *sVC = [[SectionViewController alloc] init]; sVC.rowLabelText = [NSString stringWithFormat:@'第%d组的第%d个cell',indexPath.section,indexPath.row]; [self presentViewController:sVC animated:YES completion:nil]; } - (void)sectionClick:(UITapGestureRecognizer *)tap{ int index = tap.view.tag % 100; NSMutableArray *indexArray = [[NSMutableArray alloc]init]; NSArray *arr = _sectionArray[index]; for (int i = 0; i < arr.count; i ++) { NSIndexPath *path = [NSIndexPath indexPathForRow:i inSection:index]; [indexArray addObject:path]; } //展开 if ([_flagArray[index] isEqualToString:@'0']) { _flagArray[index] = @'1'; [_tableView reloadRowsAtIndexPaths:indexArray withRowAnimation:UITableViewRowAnimationBottom]; //使用下面注释的方法就 注释掉这一句 } else { //收起 _flagArray[index] = @'0'; [_tableView reloadRowsAtIndexPaths:indexArray withRowAnimation:UITableViewRowAnimationTop]; //使用下面注释的方法就 注释掉这一句 } // NSRange range = NSMakeRange(index, 1); // NSIndexSet *sectionToReload = [NSIndexSet indexSetWithIndexesInRange:range]; // [_tableView reloadSections:sectionToReload withRowAnimation:UITableViewRowAnimationAutomatic]; } @endGithub代码下载

https://github.com/NSLog-YuHaitao/UITableView-section

声明

所有文章出自 KennyHito 的博客

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