源码-0204-UITableView02
// // ViewController.m // 05-UITableView01-多组数据 #import "ViewController.h" #import "XMGCar.h" #import "XMGCarGroup.h" @interface ViewController () <UITableViewDataSource> @property (weak, nonatomic) IBOutlet UITableView *tableView; /** 所有组数据 */ @property (nonatomic, strong) NSArray *groups; @end @implementation ViewController - (NSArray *)groups { if (_groups == nil) { // 创建模型数据 XMGCarGroup *group0 = [[XMGCarGroup alloc] init]; group0.header = @"德系"; group0.footer = @"德系车666"; group0.cars = @[ [XMGCar carWithName:@"奥迪" icon:@"m_9_100"], [XMGCar carWithName:@"宝马" icon:@"m_3_100"], [XMGCar carWithName:@"奔驰" icon:@"m_2_100"] ]; XMGCarGroup *group1 = [[XMGCarGroup alloc] init]; group1.header = @"日系"; group1.footer = @"日系车666777"; group1.cars = @[ [XMGCar carWithName:@"奥迪1" icon:@"m_9_100"], [XMGCar carWithName:@"奔驰1" icon:@"m_2_100"], [XMGCar carWithName:@"奥迪1" icon:@"m_9_100"], [XMGCar carWithName:@"奔驰1" icon:@"m_2_100"], [XMGCar carWithName:@"奥迪1" icon:@"m_9_100"], [XMGCar carWithName:@"奔驰1" icon:@"m_2_100"], [XMGCar carWithName:@"奥迪1" icon:@"m_9_100"], [XMGCar carWithName:@"奔驰1" icon:@"m_2_100"], [XMGCar carWithName:@"奥迪1" icon:@"m_9_100"], [XMGCar carWithName:@"奔驰1" icon:@"m_2_100"], [XMGCar carWithName:@"奥迪1" icon:@"m_9_100"], [XMGCar carWithName:@"奔驰1" icon:@"m_2_100"] ]; XMGCarGroup *group2 = [[XMGCarGroup alloc] init]; group2.header = @"日系1"; group2.footer = @"日系车999999"; group2.cars = @[ [XMGCar carWithName:@"奥迪2" icon:@"m_9_100"], [XMGCar carWithName:@"奔驰2" icon:@"m_2_100"] ]; _groups = @[group0, group1, group2]; } return _groups; } - (void)viewDidLoad { [super viewDidLoad]; // 设置数据源 self.tableView.dataSource = self; } #pragma mark - <UITableViewDataSource> /** * 告诉tableView第section组有多少行 */ - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { XMGCarGroup *group = self.groups[section]; return group.cars.count; } /** * 告诉tableView一共有多少组数据 */ - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return self.groups.count; } /** * 告诉tableView第indexPath行显示怎样的cell */ - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { UITableViewCell *cell = [[UITableViewCell alloc] init]; XMGCarGroup *group = self.groups[indexPath.section]; XMGCar *car = group.cars[indexPath.row]; cell.textLabel.text = car.name; cell.imageView.image = [UIImage imageNamed:car.icon]; return cell; } /** * 告诉tableView第section组的头部标题 */ - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section { XMGCarGroup *group = self.groups[section]; return group.header; } /** * 告诉tableView第section组的尾部标题 */ - (NSString *)tableView:(UITableView *)tableView titleForFooterInSection:(NSInteger)section { XMGCarGroup *group = self.groups[section]; return group.footer; } @end
// // XMGCar.h // 05-UITableView01-多组数据 #import <Foundation/Foundation.h> @interface XMGCar : NSObject /** 名字 */ @property (nonatomic, strong) NSString *name; /** 图标 */ @property (nonatomic, strong) NSString *icon; + (instancetype)carWithName:(NSString *)name icon:(NSString *)icon; @end
// // XMGCar.m // 05-UITableView01-多组数据 #import "XMGCar.h" @implementation XMGCar + (instancetype)carWithName:(NSString *)name icon:(NSString *)icon { XMGCar *car = [[self alloc] init]; car.name = name; car.icon = icon; return car; } @end
// // XMGCarGroup.h // 05-UITableView01-多组数据 #import <Foundation/Foundation.h> @interface XMGCarGroup : NSObject /** 头部标题 */ @property (nonatomic, strong) NSString *header; /** 尾部标题 */ @property (nonatomic, strong) NSString *footer; /** 这组所有的车辆模型(这个数组里面存放的都是XMGCar模型) */ @property (nonatomic, strong) NSArray *cars; @end
// // XMGCarGroup.m // 05-UITableView01-多组数据 #import "XMGCarGroup.h" @implementation XMGCarGroup @end
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