Setting SeekBar progress without setting the thumb

I would like to change the progress indication of the bar (the yellow filling stripe) without also moving the thumb. In my application the thumb indicates a constant threshold and the stripe (progress) indicates a measured va开发者_如何学Clue. What is the best way to do this?

Thanks,

smichak

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You will have to write you custom seekbar for that. I don't think there is any other way to do it.