RDVTabBarController--可自由定制的iOS底部导航控件-白红宇

RDVTabBarController--可自由定制的iOS底部导航控件

阅读量：7079 次

发布时间：2019-06-28

本文共 4203 字，大约阅读时间需要 14 分钟。

RDVTabBarController：一个十分完善的tabBarController，可以自定义角标个数，爽的停不下来。

RDVTabBarController地址：<a href ="https://github.com/robbdimitrov/RDVTabBarController">RDVTabBarController</a>

Demo地址：<a href ="https://github.com/sauchye/SYTipsDemo">欢迎Star</a>

说明

此教程是旨在让你快速入手，如需更加深层次的了解，请直接RDVTabBarController地址分析即可；

使用

pod 'RDVTabBarController'

建议直接CocoaPods管理，对CocoaPods有兴趣的童鞋可以戳<a href="http://code4app.com/article/cocoapods-install-usage">cocoapods-install-usage</a>

结构

RDVTabBar @interface RDVTabBar : UIView

RDVTabBarController@interface RDVTabBarController : UIViewController

RDVTabBarItem@interface RDVTabBarItem : UIControl

RDVTabBarController Example Usage其实已经很详细了，接下来看初始化

//VString宏定义，为了就是更好的国际化语言，适配多语言，刚好此Demo也国际化了，可以参看https://github.com/sauchye/dev_notes/issues/4 #define VString(x)      NSLocalizedString(x, nil)

- (void)setupViewControllers{    SYFirstViewController *firstVC = [[SYFirstViewController alloc] init];    SYSecondViewController *secondVC = [[SYSecondViewController alloc] init];    SYThirdViewController *thirdVC = [[SYThirdViewController alloc] init];    firstVC.title = VString(@"Home");    secondVC.title = VString(@"Found");    thirdVC.title = VString(@"Me");    self.firstNav = [[SYBaseNavigationController alloc] initWithRootViewController:firstVC];    self.secondNav = [[SYBaseNavigationController alloc] initWithRootViewController:secondVC];    self.thirdNav = [[SYBaseNavigationController alloc] initWithRootViewController:thirdVC];    [self setViewControllers:@[self.firstNav, self.secondNav, self.thirdNav]];    [self customizeTabBarForController];}

- (void)customizeTabBarForController{    //tabbar 背景图片 tabbar_background    UIImage *backgroundImage = [UIImage imageNamed:@"tabbar_background"];    //选项卡图片    NSArray *tabBarItemImages;  	//这里添加tabBar icon图片    //= @[VString(@"First"), VString(@"Second"),VString(@"Third")];    NSArray *tabBarItemTitles = @[VString(@"Home"), VString(@"Found"), VString(@"Me")];    NSInteger index = 0;    for (RDVTabBarItem *item in [[self tabBar] items])    {        item.titlePositionAdjustment = UIOffsetMake(0, 2.0);        [item setBackgroundSelectedImage:backgroundImage withUnselectedImage:backgroundImage];        UIImage *selectedimage = [UIImage imageNamed:[NSString stringWithFormat:@"%@_selected",[tabBarItemImages objectAtIndex:index]]];        UIImage *unselectedimage = [UIImage imageNamed:[NSString stringWithFormat:@"%@_normal",[tabBarItemImages objectAtIndex:index]]];        [item setFinishedSelectedImage:selectedimage withFinishedUnselectedImage:unselectedimage];        [item setTitle:[tabBarItemTitles objectAtIndex:index]];        item.selectedTitleAttributes = @{                                         NSFontAttributeName: [UIFont boldSystemFontOfSize:12],                                         NSForegroundColorAttributeName:kNAVIGATION_BAR_COLOR,                                         };        item.unselectedTitleAttributes = @{                                           NSFontAttributeName: [UIFont boldSystemFontOfSize:12],                                           NSForegroundColorAttributeName:RGB(217, 217, 217),                                           };        [item setTitle:[tabBarItemTitles objectAtIndex:index]];        index++;    }}

这样你的tabBar基本搭建好了，但是还需要完善一些，比如，角标设置，push隐藏等。

Push隐藏tabBar，你只需要这样即可

- (void)viewWillAppear:(BOOL)animated{    [super viewWillAppear:animated];    [[self rdv_tabBarController] setTabBarHidden:YES animated:YES];}

设置角标数

[[self rdv_tabBarItem] setBadgeValue:@"3"];

RDVTabBarControllerDelegate，相信你看就会明白，好的方法命名很重要啊~

/** * Asks the delegate whether the specified view controller should be made active. */- (BOOL)tabBarController:(RDVTabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController;/** * Tells the delegate that the user selected an item in the tab bar. */- (void)tabBarController:(RDVTabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController;