iOS MainTabViewController

import UIKit

class MainTabViewController: UITabBarController {
    
    let home = HomeViewController()
    let market = UIViewController()
    let news = NewsViewController()
    let edu = EduViewController()
    let trade = UIViewController()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        setupBranches()
        
        tabBar.isTranslucent = false
        
        let naviNews = UINavigationController(rootViewController: news)
        
        naviNews.navigationBar.isTranslucent = false
        naviNews.navigationBar.barTintColor = PermanentUI.naviBarTintColor
        naviNews.navigationBar.tintColor = .white
        
        let naviEdu = UINavigationController(rootViewController: edu)
        naviEdu.navigationBar.isTranslucent = false
        naviEdu.navigationBar.barTintColor = PermanentUI.naviBarTintColor
        naviEdu.navigationBar.tintColor = .white
        
        let viewControllers = [home, market, naviNews, naviEdu, trade]
        setViewControllers(viewControllers, animated: false)
    }
    
    private func setupBranches() {
        setupHome()
        setupMarket()
        setupNews()
        setupEdu()
        setupTrade()
    }
    
    private func setupHome() {
        home.tabBarItem.image = #imageLiteral(resourceName: "tab_home")
        home.tabBarItem.selectedImage = #imageLiteral(resourceName: "tab_home_selected")
        home.tabBarItem.title = "首页"
    }
    
    private func setupMarket() {
        market.tabBarItem.image = #imageLiteral(resourceName: "tab_market")
        market.tabBarItem.selectedImage = #imageLiteral(resourceName: "tab_market_selected")
        market.tabBarItem.title = "行情"
    }
    
    private func setupNews() {
        news.tabBarItem.image = #imageLiteral(resourceName: "tab_news")
        news.tabBarItem.selectedImage = #imageLiteral(resourceName: "tab_news_selected")
        news.tabBarItem.title = "咨询"
    }
    
    private func setupEdu() {
        edu.tabBarItem.image = #imageLiteral(resourceName: "tab_edu")
        edu.tabBarItem.selectedImage = #imageLiteral(resourceName: "tab_edu_selected")
        edu.tabBarItem.title = "投教"
    }
    
    private func setupTrade() {
        trade.tabBarItem.image = #imageLiteral(resourceName: "tab_trade")
        trade.tabBarItem.selectedImage = #imageLiteral(resourceName: "tab_trade_selected")
        trade.tabBarItem.title = "交易"
    }
    
}