android - Way of combining drawables? -


i new java , android programming , having trouble app. have various imageviews pictures set pngs res folder (using .setimageresource), have png, transparent square red border, place on top of imageviews giving highlight effect. can't work out how combine 2 pngs give desired highlighted look.

i have tried creating new bitmap , drawing highlighted image on top of imageview's background couldn't work out how convert drawables bitmaps.

any appreciated, thanks.


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