RDVTabBarController：一個十分完善的tabBarController，可以自定義角標個數，爽的停不下來。
RDVTabBarController地址：RDVTabBarController
Demo地址：歡迎Star
說明
此教程是旨在讓你快速入手，如需更加深層次的了解，請直接RDVTabBarController地址分析即可；
使用
pod 'RDVTabBarController'結構
RDVTabBar @interface RDVTabBar : UIViewRDVTabBarController@interface RDVTabBarController : UIViewController RDVTabBarItem@interface RDVTabBarItem : UIControlRDVTabBarController Example Usage其實已經很詳細了，接下來看初始化
//VString宏定義，為了就是更好的國際化語言，適配多語言，剛好此Demo也國際化了，可以參看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];} 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++; }}這樣你的tabBar基本搭建好了，但是還需要完善一些，比如，角標設置，push隱藏等。
Push隱藏tabBar，你只需要這樣即可 - (void)viewWillAppear:(BOOL)animated{ [super viewWillAppear:animated]; [[self rdv_tabBarController] setTabBarHidden:YES animated:YES];}設置角標數[[self rdv_tabBarItem] setBadgeValue:@"3"];RDVTabBarControllerDelegate，相信你看就會明白，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;結語
RDVTabBarController是一個很棒的第三方tabBarController，值得我們學習和思考。
相比傳統第三方，你會發現可以很好的定制角標，這是極好的，當然你也可以自定義；但是不能定義中間凸起的tabBar，好早之前去哪兒就是中間凸起一個tabBar，不過現在去哪兒也改成傳統的tabBar了；– 更多討論,參見: http://www.ios122.com/tag/rdvtabbarcontroller/
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