UISlider 轨道高度 [英] UISlider track height

问题描述

我已经实现了 UISlider，我需要调整轨道高度.我发现了这个，但它不起作用.

I have implemented UISlider and I need to adjust track height. I found this but its not working.

self.slider.trackRect(forBounds: CGRect(x: 0, y: 0, width: 100, height: 100))

推荐答案

找到了，但是没用

found this but its not working

因为你用错了.你不调用它.您子类化，然后覆盖它.

Because you're using it wrong. You don't call it. You subclass, and override it.

然而，正确的方法是为轨道提供新的图像，使用 setMinimumTrackImage 和 setMaximumTrackImage.

However, the right approach is to supply new images for the track, with setMinimumTrackImage and setMaximumTrackImage.

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