UINavigation设置了后退按钮图像而不是<Back text Swift 2.0

Question

我正在尝试更改内部的"后退"按钮UINavigationController.这是我到目前为止尝试的和输出:

1

代码内 ViewDidLoad

self.navigationController?.navigationBar.backIndicatorImage = UIImage(named: "navBarBackButton")
    self.navigationController?.navigationBar.backIndicatorTransitionMaskImage = UIImage(named: "navBarBackButton")
    self.navigationItem.backBarButtonItem?.image = UIImage(named: "navBarBackButton")

输出:

我尝试添加以下但id没有帮助:

self.navigationItem.backBarButtonItem = UIBarButtonItem(title:"", style:.Plain, target:nil, action:nil)

2

代码内 AppDelegate

let backImg: UIImage = UIImage(named: "navBarBackButton")!
    UIBarButtonItem.appearance().setBackButtonBackgroundImage(backImg, forState: .Normal, barMetrics: .Default)

输出:

3

我尝试添加后退按钮,Storyboard但没有任何改变

4 - 感谢sanandiya vipul.还需要它而不是'后退'.这只会删除'返回但保持图像右下方而不是整个'

UIBarButtonItem.appearance().setBackButtonTitlePositionAdjustment(UIOffsetMake(0, -80.0), forBarMetrics: .Default)

这是输出:

这是我希望实现的结果

Answer 1

1. 在Code下面添加ViewDidLoad方法.它为你工作很好.

对斯威夫特来说

UIBarButtonItem.appearance().setBackButtonTitlePositionAdjustment(UIOffsetMake(0,-80.0),forBarMetrics:.Default)

for Objective-c

[[UIBarButtonItem外观] setBackButtonTitlePositionAdjustment:UIOffsetMake(0, - 80.f)forBarMetrics:UIBarMetricsDefault];