No smooth transition when progress descreasing

[lukaci]

Use case: countdown.

• Not spinning
• LinearProgress = true
• The progress value is updatedUsing setProgress, and its value goes from 1f to 0f

A smooth transition is expected, but it is not smooth.

Perhaps, in the onDraw method, when not spinning, the code says:

• mProgress = Math.min(mProgress + deltaNormalized, mTargetProgress);

This kind of recalculation of mProgress is valid only when increasing from a lower value to a higher, not suited for countdown.

[nico2sh]

I will look for a solution for this, but for now this was intentional, as I didn't find any significant benefit of smoothly animate it down (compared with the complexity of adding the feature).