如何显示不同颜色的旋转NSProgressIndicator？ [英] How can I display the spinning NSProgressIndicator in a different color?

问题描述

我在可可应用程式中使用「spinner」NSProgressIndicator：

我想以不同的颜色显示它，以便它在黑暗的背景下显示得很好： p>

我该怎么做呢？我最后的办法是编写自己的自定义NSView子类，呈现自定义动画，但我甚至不知道从哪里开始。

解决方案

我实际上已经实现了可能适合您的需求的旋转NSProgressIndicator的克隆。它们可以以任何大小和任何颜色绘制。一个是NSView的子类，可以在OS X 10.4上使用，另一个是CALayer的子类，可以在基于CoreAnimation的项目中使用。代码位于github上（包括基于NSView的版本和基于CoreAnimation的版本），还有一个 post with some screenshots in my blog。

I am using a "spinner" NSProgressIndicator in my cocoa app:

I would like to display it in a different color so that it will show up well on a dark background:

How would I go about doing this? My last resort would be to write my own custom NSView subclass that renders a custom animation, but I'm not even sure where to start on that front. Any help is appreciated.

解决方案

I actually have implemented clones of the spinning NSProgressIndicator that might suit your needs. They can be drawn at any size and in any color. One is a subclass of NSView, which can be used on OS X 10.4, and the other is a subclass of CALayer, which can be used in a CoreAnimation-based project. The code is on github (both the NSView-based version and the CoreAnimation-based version), and there is a post with some screenshots on my blog.

这篇关于如何显示不同颜色的旋转NSProgressIndicator？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！