TabbarController进行模块分类和管理

#import <CYLTabBarController.h>

@interface MainTabBarControllerConfig : NSObject
///CYLTabBarController
@property (nonatomic,strong) CYLTabBarController *mainTabBarController;
@end

@implementation MainTabBarControllerConfig

- (CYLTabBarController *)mainTabBarController{
    if (!_mainTabBarController) {
        UIEdgeInsets imageInsets = UIEdgeInsetsZero;
        UIOffset titlePositionAdjustment = UIOffsetZero;
        _mainTabBarController = [CYLTabBarController tabBarControllerWithViewControllers:[self arrayViewControllerItem] tabBarItemsAttributes:[self arrayAttributesItem] imageInsets:imageInsets titlePositionAdjustment:titlePositionAdjustment];
        [self customizeTabBarAppearance:_mainTabBarController];
    }
    return _mainTabBarController;
}

- (NSArray *)arrayViewControllerItem{
    BookcaseNavViewController *bookcaseNavi = [wkj_getSboardBookcase instantiateViewControllerWithIdentifier:@"BookcaseNavViewController"];
    AskKaoLaNavViewController *askKlNavi = [wkj_getSboardAskKaoLa instantiateViewControllerWithIdentifier:@"AskKaoLaNavViewController"];
    DiscoverNavViewController *discoverNavi = [wkj_getSboardDiscover instantiateViewControllerWithIdentifier:@"DiscoverNavViewController"];
    UserNavViewController *userNavi = [wkj_getSboardUser instantiateViewControllerWithIdentifier:@"UserNavViewController"];
    ///返回需要加载的模块
    return @[bookcaseNavi,discoverNavi,askKlNavi,userNavi];
}

- (NSArray *)arrayAttributesItem{
    NSDictionary *bookcaseItemsAttributes =@{CYLTabBarItemTitle : @"nav1",
                                                CYLTabBarItemImage : @"bar_tk_01",
                                                /* NSString and UIImage are supported*/
                                                CYLTabBarItemSelectedImage : @"bar_tk_02",};
    
    NSDictionary *discoverItemsAttributes = @{CYLTabBarItemTitle : @"nav2",
                                              CYLTabBarItemImage : @"bar_kc_01",
                                              CYLTabBarItemSelectedImage : @"bar_kc_02",};
    
    NSDictionary *askklItemsAttributes = @{CYLTabBarItemTitle : @"nav3",
                                           CYLTabBarItemImage : @"bar_dzs_01",
                                           CYLTabBarItemSelectedImage : @"bar_dzs_02",};
    
    NSDictionary *userItemsAttributes = @{CYLTabBarItemTitle : @"nav4",
                                          CYLTabBarItemImage : @"bar_wd_01",
                                          CYLTabBarItemSelectedImage : @"bar_wd_02"};
    
    NSArray *tabBarItemsAttributes = @[bookcaseItemsAttributes,
                                       discoverItemsAttributes,
                                       askklItemsAttributes,
                                       userItemsAttributes];
    return tabBarItemsAttributes;
}


/**
 *  更多TabBar自定义设置：比如：tabBarItem 的选中和不选中文字和背景图片属性、tabbar 背景图片属性等等
 */
- (void)customizeTabBarAppearance:(CYLTabBarController *)tabBarController {
    // Customize UITabBar height
    // 自定义 TabBar 高度
    //     tabBarController.tabBarHeight = CYLTabBarControllerHeight;
    
    // set the text color for unselected state
    // 普通状态下的文字属性
    NSMutableDictionary *normalAttrs = [NSMutableDictionary dictionary];
    normalAttrs[NSForegroundColorAttributeName] = [UIColor grayColor];
    
    // set the text color for selected state
    // 选中状态下的文字属性
    NSMutableDictionary *selectedAttrs = [NSMutableDictionary dictionary];
    selectedAttrs[NSForegroundColorAttributeName] = Wonderful_BlueColor6;
    
    // set the text Attributes
    // 设置文字属性
    UITabBarItem *tabBar = [UITabBarItem appearance];
    [tabBar setTitleTextAttributes:normalAttrs forState:UIControlStateNormal];
    [tabBar setTitleTextAttributes:selectedAttrs forState:UIControlStateSelected];
    
    // Set the dark color to selected tab (the dimmed background)
    // TabBarItem选中后的背景颜色
    // [self customizeTabBarSelectionIndicatorImage];
    
    // update TabBar when TabBarItem width did update
    // If your app need support UIDeviceOrientationLandscapeLeft or UIDeviceOrientationLandscapeRight，
    // remove the comment ‘//‘
    // 如果你的App需要支持横竖屏，请使用该方法移除注释 ‘//‘
    // [self updateTabBarCustomizationWhenTabBarItemWidthDidUpdate];
    
    // set the bar shadow image
    // This shadow image attribute is ignored if the tab bar does not also have a custom background image.So at least set somthing.
    [[UITabBar appearance] setBackgroundImage:[[UIImage alloc] init]];
    [[UITabBar appearance] setBackgroundColor:[UIColor whiteColor]];
    [[UITabBar appearance] setShadowImage:[UIImage imageNamed:@"tapbar_top_line"]];
    
    // set the bar background image
    // 设置背景图片
    //     UITabBar *tabBarAppearance = [UITabBar appearance];
    //     [tabBarAppearance setBackgroundImage:[UIImage imageNamed:@"tab_bar"]];
    
    // remove the bar system shadow image
    // 去除 TabBar 自带的顶部阴影
    // [[UITabBar appearance] setShadowImage:[[UIImage alloc] init]];
}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.
//    /加载中间自定义按钮
//    [TabbarPlusButton registerPlusButton];
    MainTabBarControllerConfig *tabbarConfig = [[MainTabBarControllerConfig alloc]init];
    CYLTabBarController *mainTabbarController = tabbarConfig.mainTabBarController;
    [self.window setRootViewController:mainTabbarController];
    return YES;
}

@interface TabbarPlusButton : CYLPlusButton<CYLPlusButtonSubclassing>

@end

@implementation TabbarPlusButton

- (instancetype)initWithFrame:(CGRect)frame {
    if (self = [super initWithFrame:frame]) {
        self.titleLabel.textAlignment = NSTextAlignmentCenter;
        self.adjustsImageWhenHighlighted = NO;
    }
    return self;
}

//上下结构的 button
- (void)layoutSubviews {
    [super layoutSubviews];
    
    // 控件大小,间距大小
    // 注意：一定要根据项目中的图片去调整下面的0.7和0.9，Demo之所以这么设置，因为demo中的 plusButton 的 icon 不是正方形。
    CGFloat const imageViewEdgeWidth   = self.bounds.size.width * 0.7;
    CGFloat const imageViewEdgeHeight  = imageViewEdgeWidth * 0.9;
    
    CGFloat const centerOfView    = self.bounds.size.width * 0.5;
    CGFloat const labelLineHeight = self.titleLabel.font.lineHeight;
    CGFloat const verticalMargin  = (self.bounds.size.height - labelLineHeight - imageViewEdgeHeight) * 0.5;
    
    // imageView 和 titleLabel 中心的 Y 值
    CGFloat const centerOfImageView  = verticalMargin + imageViewEdgeHeight * 0.5;
    CGFloat const centerOfTitleLabel = imageViewEdgeHeight  + verticalMargin * 2 + labelLineHeight * 0.5 + 5;
    
    //imageView position 位置
    self.imageView.bounds = CGRectMake(0, 0, imageViewEdgeWidth, imageViewEdgeHeight);
    self.imageView.center = CGPointMake(centerOfView, centerOfImageView);
    
    //title position 位置
    self.titleLabel.bounds = CGRectMake(0, 0, self.bounds.size.width, labelLineHeight);
    self.titleLabel.center = CGPointMake(centerOfView, centerOfTitleLabel);
}

#pragma mark -
#pragma mark - CYLPlusButtonSubclassing Methods

/*
 *
 Create a custom UIButton with title and add it to the center of our tab bar
 *
 */
+ (id)plusButton {
    TabbarPlusButton *button = [[TabbarPlusButton alloc] init];
    ///中间按钮图片
    UIImage *buttonImage = [UIImage imageNamed:@"post_normal"];
    [button setImage:buttonImage forState:UIControlStateNormal];
    [button setTitle:@"发布" forState:UIControlStateNormal];
    [button setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
    
    [button setTitle:@"发布" forState:UIControlStateSelected];
    [button setTitleColor:[UIColor blueColor] forState:UIControlStateSelected];
    
    button.titleLabel.font = [UIFont systemFontOfSize:9.5];
    [button sizeToFit]; // or set frame in this way `button.frame = CGRectMake(0.0, 0.0, 250, 100);`
    //    button.frame = CGRectMake(0.0, 0.0, 250, 100);
    //    button.backgroundColor = [UIColor redColor];
    
    // if you use `+plusChildViewController` , do not addTarget to plusButton.
    [button addTarget:button action:@selector(clickPublish) forControlEvents:UIControlEventTouchUpInside];
    return button;
}
/*
 *
 Create a custom UIButton without title and add it to the center of our tab bar
 *
 */
//+ (id)plusButton
//{
//
//    UIImage *buttonImage = [UIImage imageNamed:@"hood.png"];
//    UIImage *highlightImage = [UIImage imageNamed:@"hood-selected.png"];
//
//    CYLPlusButtonSubclass* button = [CYLPlusButtonSubclass buttonWithType:UIButtonTypeCustom];
//
//    button.autoresizingMask = UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleBottomMargin | UIViewAutoresizingFlexibleTopMargin;
//    button.frame = CGRectMake(0.0, 0.0, buttonImage.size.width, buttonImage.size.height);
//    [button setBackgroundImage:buttonImage forState:UIControlStateNormal];
//    [button setBackgroundImage:highlightImage forState:UIControlStateHighlighted];
//    [button addTarget:button action:@selector(clickPublish) forControlEvents:UIControlEventTouchUpInside];
//
//    return button;
//}

#pragma mark -
#pragma mark - Event Response

- (void)clickPublish {
    CYLTabBarController *tabBarController = [self cyl_tabBarController];
    UIViewController *viewController = tabBarController.selectedViewController;
    
    UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:nil
                                                             delegate:nil
                                                    cancelButtonTitle:@"取消"
                                               destructiveButtonTitle:nil
                                                    otherButtonTitles:@"拍照", @"从相册选取", @"淘宝一键转卖", nil];
    [actionSheet showInView:viewController.view];
}

#pragma mark - UIActionSheetDelegate

- (void)actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex {
    NSLog(@"buttonIndex = %@", @(buttonIndex));
}

#pragma mark - CYLPlusButtonSubclassing

//+ (UIViewController *)plusChildViewController {
//    UIViewController *plusChildViewController = [[UIViewController alloc] init];
//    plusChildViewController.view.backgroundColor = [UIColor redColor];
//    plusChildViewController.navigationItem.title = @"PlusChildViewController";
//    UIViewController *plusChildNavigationController = [[UINavigationController alloc]
//                                                   initWithRootViewController:plusChildViewController];
//    return plusChildNavigationController;
//}
//
//+ (NSUInteger)indexOfPlusButtonInTabBar {
//    return 4;
//}
//
//+ (BOOL)shouldSelectPlusChildViewController {
//    BOOL isSelected = CYLExternPlusButton.selected;
//    if (isSelected) {
//        NSLog(@"??类名与方法名：%@（在第%@行），描述：%@", @(__PRETTY_FUNCTION__), @(__LINE__), @"PlusButton is selected");
//    } else {
//        NSLog(@"??类名与方法名：%@（在第%@行），描述：%@", @(__PRETTY_FUNCTION__), @(__LINE__), @"PlusButton is not selected");
//    }
//    return YES;
//}

+ (CGFloat)multiplierOfTabBarHeight:(CGFloat)tabBarHeight {
    return  0.3;
}

+ (CGFloat)constantOfPlusButtonCenterYOffsetForTabBarHeight:(CGFloat)tabBarHeight {
    return  -10;
}

@end

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.
//    /加载中间自定义按钮
    [TabbarPlusButton registerPlusButton];
    MainTabBarControllerConfig *tabbarConfig = [[MainTabBarControllerConfig alloc]init];
    CYLTabBarController *mainTabbarController = tabbarConfig.mainTabBarController;
    [self.window setRootViewController:mainTabbarController];
    return YES;
}