// // CustomUITableViewController.m // UI2_QQ折叠-UITableViewController // // Created by zhangxueming on 15/7/15. // Copyright (c) 2015年 zhangxueming. All rights reserved. // #import "CustomUITableViewController.h" #define FoldImageName @"arrow_fold" #define SpreadImageName @"arrow_spread" @interface CustomUITableViewController () @end @implementation CustomUITableViewController - (instancetype)initWithStyle:(UITableViewStyle)style { self = [super initWithStyle:style]; if (self) { self.title = @"QQ折叠"; self.dataList = [NSMutableArray array]; } return self; } - (void)creatData { for (int i=0; i<20; i++) { NSMutableArray *array = [NSMutableArray array]; for (int j=0; j<5; j++) { NSString *name = [NSString stringWithFormat:@"小明%d", j+1]; [array addObject:name]; } [_dataList addObject:array]; } } //设置分区的个数 - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return self.dataList.count; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { //根据分区的状态返回行数 if (sectionState[section]) { return 0; } return [[self.dataList objectAtIndex:section] count]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *cellId = @"cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellId]; if (!cell) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:cellId]; } cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; cell.textLabel.text = [[self.dataList objectAtIndex:indexPath.section] objectAtIndex:indexPath.row]; return cell; } //设置分区头视图 - (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section { UIView *headerView = [[UIView alloc] initWithFrame:CGRectZero]; headerView.backgroundColor = [UIColor lightGrayColor]; UILabel *lineLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 43, self.view.frame.size.width, 3)]; lineLabel.backgroundColor = [UIColor grayColor]; [headerView addSubview:lineLabel]; //加载图片 UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(10, 7, 32, 32)]; if (sectionState[section]) {//收起的状态 imageView.image = [UIImage imageNamed:FoldImageName]; } else { imageView.image = [UIImage imageNamed:SpreadImageName]; } [headerView addSubview:imageView]; //添加点击手势 UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapClick:)]; tap.numberOfTapsRequired = 1; tap.numberOfTouchesRequired = 1; headerView.userInteractionEnabled = YES; [headerView addGestureRecognizer:tap]; //tag值 headerView.tag = section; return headerView; } //0000 0000 ==0 //0000 0001 ^ //----------- //0000 0001 ==1 //0000 0001 ==1 //0000 0001 ^ //----------- //0000 0000 ==0 - (void)tapClick:(UITapGestureRecognizer *)tap { NSLog(@"-------"); NSInteger index = tap.view.tag; sectionState[index] ^=1; [self.tableView reloadSections:[NSIndexSet indexSetWithIndex:index] withRowAnimation:UITableViewRowAnimationFade]; } - (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section { return 46; } - (void)viewDidLoad { [super viewDidLoad]; [self creatData]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } @end
// AppDelegate.m // UI2_QQ折叠-UITableViewController // // Created by zhangxueming on 15/7/15. // Copyright (c) 2015年 zhangxueming. All rights reserved. // #import "AppDelegate.h" #import "CustomUITableViewController.h" @interface AppDelegate () @end @implementation AppDelegate - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after application launch. CustomUITableViewController *root = [[CustomUITableViewController alloc] init]; UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:root]; self.window.rootViewController = nav; self.window.backgroundColor = [UIColor whiteColor]; return YES; }
转载于:https://www.cnblogs.com/0515offer/p/4649142.html
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