IOS項目開發布局四
在上次框架基礎上添加UITabViewController控件和頂部滾動欄,首先看文件布局如下圖
1. 在DemMainViewController中添加如下:
- (void)addMainController { _tabController=[[UITabBarController alloc] init]; [_tabController.view setFrame: [self.view bounds]]; NSArray *classStringArray = [NSArray arrayWithObjects:@"DemFirstViewController",@"DemSecondViewController",@"DemThreeViewController",@"DemFourViewController",nil]; NSMutableArray *array = [[NSMutableArray alloc] init]; for (int i = 0; i < [classStringArray count]; i++) { Class c = NSClassFromString([classStringArray objectAtIndex:i]); DemFSTFViewController *fstfViewController = [[c alloc] init]; UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:fstfViewController]; [fstfViewController release]; [array addObject:nav]; [nav release]; } [_tabController setViewControllers:array]; [self.view addSubview:_tabController.view]; }說明:DemFirstViewController、DemSecondViewController、DemThreeViewController和DemFourViewController四個類繼承於DemFSTFViewController基類,作為TabBarViewController的四個控制器
2. 在DemFSTFViewController中可以定義一個公有方法如下
- (void)setTitle:(NSString *)title withImageName:(NSString *)imageName { self.title = title; self.tabBarItem.image = [UIImage imageNamed:imageName]; self.navigationItem.title = title; }說明:這個方法可以為每個繼承它的子類設置title和tabbarItem。
運行結果如下:
圖一
圖二
提供項目的下載鏈接:http://download.csdn.net/detail/chchong1234/6993253