镜像(翻转)视图/进度栏 [英] Mirror (flip) a View / ProgressBar

问题描述

我有一个自定义的圆形进度条，用于在时钟上设置秒计数器，我想对其进行翻转，以使时钟沿逆时针方向计数.

I have a custom built circular progress bar used for a seconds counter on a clock, which I'd like to flip, so that the clock is counting counter-clockwise.

在这里搜索解决方案，我发现了这一点:

Searching here for a solution, I found this:

从右到左的ProgressBar?

这显然适用于水平进度条，但是我不能简单地将其旋转180度，因为那样只会将时钟移动180度，并且仍然会沿顺时针方向滴答作响.

Which obviously works for a horizontal progress bar, but I can't simply rotate it 180 degrees, since that will just move the clock 180 degrees and it will still be ticking clockwise.

还有其他方法可以镜像ProgressBar或任何视图吗?

Is there any other way to mirror a ProgressBar, or any View?

刚刚找到了"android:rotationY"和程序上的等效项，但是理想情况下，该值应为2.2及更高版本.

Just found "android:rotationY" and the programmatic equivalent, but this ideally needs to be for 2.2 and above..

推荐答案

我能够仅使用XML中的属性 scaleX 来翻转 ProgressBar :

I was able to flip ProgressBar simply with attribute scaleX in XML:

android:scaleX="-1"

这也适用于其他 View .

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