说明：VC源码在状态栏中实现文字滚动字幕的例子！

VC source to achieve the status bar text scrolling subtitles example!

youdao

Tiles有个“瞥一眼”的概念，它们可以稍稍上下滚动不长的距离，多显示一点文字和图片。

Tiles can support the idea of "peek" where they scroll up and down to show both text and images. The amount of scroll isn't very much.

youdao

然后文字开始滚动直到到达另一侧，之后改变方向，再滚回它的起始位置。

The text then scrolls until it reaches the other end, whereupon it reverses direction and scrolls back to its starting point.

youdao