ViewController跳转的三种方式的混合使用

//添加一个BaseNavigation，可以从不同界面跳转到同一个界面，同一个界面的回退方式：

self.dismissViewControllerAnimated(true, completion:nil)

import Foundation

import UIKit

@objc

class BaseNavigationController: UINavigationController {

    var childCtr: UIViewController?

    override func viewDidLoad() {

        self.navigationBar.hidden =true

        if let ctr =childCtr {

            self.addChildViewController(ctr)

        }

    }

    override func popViewControllerAnimated(animated:
Bool) -> UIViewController? {

        ifself.childViewControllers.count
==1 {

            dismissViewControllerAnimated(true, completion:nil)

            return
nil

        }else {

            returnsuper.popViewControllerAnimated(animated)

        }

    }

    func addBasicChildViewController(ctr: UIViewController) {

        self.childCtr = ctr

    }

}

//顶部状态栏的颜色

import Foundation

import UIKit

class BaseLightNavigationController: BaseNavigationController {

    override func preferredStatusBarStyle() ->
UIStatusBarStyle {

        returnUIStatusBarStyle.LightContent

    }

}

//animated:时候开启动画效果

let ctr = UIStoryboard(name:"LogIn_6p", bundle:nil).instantiateViewControllerWithIdentifier("loginMyselfNavigationController_6p")as!UINavigationController

let navController =
BaseLightNavigationController()

navController.childCtr = ctr

self.presentViewController(navController, animated:true, completion:nil)

//pushViewController跳转方式禁用，presentViewController跳转方式是新开一个栈，对应返回是

self.navigationController?.dismissViewControllerAnimated(true,
completion: nil)
,

showViewController在已有的栈上跳转，对应的返回是

返回根页面vc用 ：

?
返回指定的某个vc用下面（通过index定位） 

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