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tankery / CircularSeekBar

Custom circular SeekBar (Circle, Semi-circle, and Ellipse) for Android
Apache License 2.0
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Is there a way to have a semi-circle start in the middle and move negative and positive numbers? #33

Closed YrgkenKoutsi closed 2 years ago

YrgkenKoutsi commented 3 years ago

Hi,

Is there a way to have a semi-circle start at 0 middle point and move left negative number and right positive numbers. Using cs_start_angle and cs_end_angle does the semi circle however I can't set it to start in the middle and use negative numbers.

Any direction of achieving this would be really appreciated.

tankery commented 3 years ago

Hey, @YrgkenKoutsi, It's an interesting idea to set start point in middle. I'm afraid this library itself may hard to support.

But I think you might want to try to set the progress to 50% when init, and pretend this is the "start" point. then manually recalculate the progress by -50. Therefore, the progress 0 will be -50, and progress 100 will be 50. Hope this could help!