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Editorial Team
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Asked: 2026-06-18T02:56:31+00:00

For a personnal app where the user will be able to draw on a

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For a personnal app where the user will be able to draw on a whiteboard, I need to have a dynamic background on an icon.

It’s a kind of paint bucket where the user will be able to select the color of his choice. Basically, when the user clicks on the button, a color picker dialog appears and he can select one. I need the icon background to change with the given color.

My button looks like that:
enter image description here

I need the red color to change to the new one when the user has clicked on the valid button in my dialog. And to add a border on that button after to tell the user this option is selected.

Is there a way to do that programmaticlly or not ? If so how ?

Thanks.

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1 Answer

  1. Editorial Team

    Look to Drawable#setColorFilter.

    You can actually use:

    Drawable.setColorFilter( 0xffff0000, Mode.MULTIPLY ).

    This set white pixels to red, where the color format is ARGB.

    If it wont work try a more brute solution: https://stackoverflow.com/a/1715673/821054

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