Android Question Changing bitmap color at runtime

[Alessandro71]

I have a dashboard of icons
icons can be 1 bitplane only (with transparency) png files
I'd like to color the icons at runtime (think of a dashboard of light going on and off)
I don't see any function for coloring bitmaps at runtime or applying a colorize filter
how can I achive this?

 

[DonManfred]

i suggest using a small panel and set the backgroundcolor of this panel to archieve the result of one of the bitplane

 

[Alessandro71]

interesting idea: setting the icons with negative transparent (like a cut-out) and setting the color of the panel to see-through