Demo: https://github.com/Rochang/LCGoodDetailViewController
先看效果:

demo.gif

// 繼承LCFoodDetailViewController
@interface ViewController : LCFoodDetailViewController

// 添加上, 下部分控制器
- (void)addTwoChildViewControllers {
    FirstViewController *firstVc = [[FirstViewController alloc] init];
    [self addChildViewController:firstVc];

    CustomTitleScrollViewController *secondVc = [[CustomTitleScrollViewController alloc] init];
    [self addChildViewController:secondVc];
}

/*
  提示:不要求上下部分控制器是UIScrollview的子類,LCFoodDetailViewController內(nèi)部做了處理
if ([childFirstView isKindOfClass:[UIScrollView class]]) {
        [self addMJRefreshForFirstView:(UIScrollView *)childFirstView];
        [self.bgScrollView addSubview:childFirstView];
    } else {
        [self.bgScrollView addSubview:self.topScrollView];
        [self.topScrollView addSubview:childFirstView];
        [self addMJRefreshForFirstView:self.topScrollView];
    }
    
    if ([childSecondView isKindOfClass:[UIScrollView class]]) {
        [self addMJRefreshForsecondView:(UIScrollView *)childSecondView];
        [self.bgScrollView addSubview:childSecondView];
    } else {
        [self.bgScrollView addSubview:self.bottomScrollView];
        [self.bottomScrollView addSubview:childSecondView];
        [self addMJRefreshForsecondView:self.bottomScrollView];
    }
*/

標題切換控制器LCTitleScrollViewController使用方法:

// 繼承LCTitleScrollViewController
@interface CustomTitleScrollViewController : LCTitleScrollViewController

// 重寫方法
- (void)setupChildViewControllers {
    UIViewController *firstVc = [[UIViewController alloc] init];
    firstVc.title = @"first";
    firstVc.view.backgroundColor = [UIColor grayColor];
    [self addChildViewController:firstVc];
    
    UIViewController *secondVc = [[UIViewController alloc] init];
    secondVc.title = @"second";
    secondVc.view.backgroundColor = [UIColor darkGrayColor];
    [self addChildViewController:secondVc];
    
    UIViewController *thirdVc = [[UIViewController alloc] init];
    thirdVc.title = @"third";
    thirdVc.view.backgroundColor = [UIColor lightGrayColor];
    [self addChildViewController:thirdVc];
    
    UIViewController *forthVc = [[UIViewController alloc] init];
    forthVc.title = @"fourth";
    forthVc.view.backgroundColor = [UIColor orangeColor];
    [self addChildViewController:forthVc];
}

/*自定義樣式查看LCTitleScrollViewController.h*/
/** 重寫設(shè)置titleButon屬性返回titleButton的寬度 */
- (CGFloat)comfiguretitleView:(UIButton *)button buttonCounts:(NSUInteger)count superViewWidth:(CGFloat)width;

/** 重寫設(shè)置underLine屬性的,返回underLine的寬度 */
- (CGFloat)comfigureUnderLine:(UIView *)underLine titltButton:(UIButton *)button;

/** 重寫監(jiān)聽titleButton點擊 */
- (void)titleButtonDidClick:(UIButton *)button index:(NSUInteger)index;

/** 代碼設(shè)置選擇button的index */
- (void)setIndexForTitleScrollViewController:(NSInteger)index animate:(BOOL)animate;

/** 獲取當前顯示Vc的index*/
- (NSInteger)indexforTitleScrollViewController;