UIBarButtonItem是蓝色而不是图像 [英] UIBarButtonItem is blue instead of image

问题描述

这是我的viewDidLoad方法中的内容:

Here is what I have in my viewDidLoad method:

self.navigationController?.navigationBar.backIndicatorImage = UIImage(named: "back")
self.navigationController?.navigationBar.backIndicatorTransitionMaskImage = UIImage(named: "back")
self.navigationItem.backBarButtonItem = UIBarButtonItem(title: "", style: UIBarButtonItemStyle.Plain, target: nil, action: nil)

我正在尝试在导航控制器中为我的后退按钮提供自定义图标图像.我看到的是蓝色，而不是原始格式的图像. 如何使图像正确显示?

I am trying to have a custom icon image for my back button in my navigation controller. Instead of the image showing in it's original format, I am seeing the image in blue. How do I get the image to show properly?

推荐答案

您可以在AlwaysOriginal模式下将renderingMode用于自定义图像.请参见下面的代码以解决它.

You can use renderingMode for your custom image with AlwaysOriginal mode. See below code for solved it.

self.navigationController?.navigationBar.backIndicatorImage = UIImage(named: "back")?.imageWithRenderingMode(.AlwaysOriginal)
self.navigationController?.navigationBar.backIndicatorTransitionMaskImage = UIImage(named: "back")?.imageWithRenderingMode(.AlwaysOriginal)

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