技巧-底部切换按钮配置

底部切换按钮1

navigationController自带了一个工具栏,通过设置  

self.navigationController.toolbarHidden  =  NO来显示工具栏,工具栏中的内容可以通过 viewController的toolbarItems来设置,显示的顺序和设置的NSArray中存放的顺序一致, 其中每一个数据都有一个对应的UIBarButtonItem对象,可以使用系统提供的很多常用风格 的对象,也可以根据需求进行自定义。  

self.navigaConController.toolbarHidden = NO;

UIBarBu[onItem *one = [[UIBarBu[onItem alloc] initWithBarBu[onSystemItem:UIBarBu[onSystemItemAdd target:nil acCon:nil];

UIBarBu[onItem *two = [[UIBarBu[onItem alloc] initWithBarBu[onSystemItem:UIBarBu[onSystemItemBookmarks target:nil acCon:nil];

UIBarBu[onItem *three = [[UIBarBu[onItem alloc] initWithBarBu[onSystemItem:UIBarBu[onSystemItemAcCon target:nil acCon:nil];

UIBarBu[onItem *four = [[UIBarBu[onItem alloc] initWithBarBu[onSystemItem:UIBarBu[onSystemItemEdit target:nil acCon:nil];

UIBarBu[onItem *flexItem = [[UIBarBu[onItem alloc] initWithBarBu[onSystemItem:UIBarBu[onSystemItemFlexibleSpace target:nil acCon:nil]; // 间隔

[self setToolbarItems:@[one, flexItem, two, flexItem, three, flexItem, four, flexItem]];

底部切换按钮2

UITabBarController的创建  

self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; self.tbCtrl = [[UITabBarController alloc] init];
// 1. 生成tab上对应的VC
FirstViewController *item1 = [[FirstViewController alloc] init]; SecondViewController *item2 = [[SecondViewController alloc] init]; ThirdViewController *item3 = [[ThirdViewController alloc] init]; ThirdViewController *item4 = [[ThirdViewController alloc] init]; ThirdViewController *item5 = [[ThirdViewController alloc] init];

// 2. 加入到tabbar的数组中

NSArray *controllers = @[item1,item2,item3, item4, item5]; //3. 设置属性

self.tbCtrl.viewControllers= controllers;

self.tbCtrl. selectedIndex = 2; self.tbCtrl.delegate = self;

self.window.backgroundColor = [UIColor whiteColor]; self.window.rootViewController = self.tbCtrl; [self.window makeKeyAndVisible];
return YES;