工具栏中的缩略图滑块，如iPad Photos应用 [英] Thumbnail slider in toolbar like iPad Photos app

问题描述

我想将缩略图放在工具栏中，就像照片应用一样。就像左边的截图：

I would like to put thumbnails in the toolbar like the Photos app. Like the screenshot on the left:

alt text http://images.apple.com/ipad/features/images/photos_perfect_20100225.jpg

是否有内置的控制这样做，还是我必须从头开始实施？

Is there is a built-in control to do this, or do I have to implement it from scratch?

如果答案是从头开始，任何提示？

If the answer is from scratch, any tips?

推荐答案

这将是你必须自己编写的控件。我不是最好的方法，但我想我会继续使用UISlider，将图像数组彼此相邻以创建轨道，然后使用当前图像作为句柄。

This would be a control you'd have to write yourself. I'm not what the best approach would be, but I think I'd go with subclassing a UISlider, drawing the array of images next to each other to create the track, and then using the current image as the handle.

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