扭曲的导航栏自定义后退按钮 [英] Distorted navigation bar custom back button

问题描述

我有一个自定义的后退按钮，该按钮未按预期显示，正在拉伸，即使后退按钮文本为空，它仍显示后退"文字.

I have a custom back button and the button is not displaying as intended, it is being stretched, and even though the back button text is empty it is still displaying the "back" text.

谢谢.

推荐答案

我通常使用此技术使其工作:

I usually use this technique to make it work:

1. 摆脱默认标题:

1. To get rid default title:

[[UIBarButtonItem appearance] setBackButtonTitlePositionAdjustment:UIOffsetMake(-400.f, 0) forBarMetrics:UIBarMetricsDefault];

使用可调整大小的图像:

Use resizable image:

UIImage *backButton = [UIImage imageNamed:@"back.png"];         
[[UIBarButtonItem appearance] setBackButtonBackgroundImage:[backButton resizableImageWithCapInsets:UIEdgeInsetsMake(0, backButton.size.width, 0, 0)] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];

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