background color - Bitmap in org.mapsforge.core.graphics.Bitmap -

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i used code showing text on map :

org.mapsforge.core.graphics.bitmap bitmap=null;             bitmap=     androidgraphicfactory.converttobitmap(textasbitmap(string.valueof(vehiclecode1), 45, color.black));             bitmap.setbackgroundcolor(color.yellow);

if remove line:

  bitmap.setbackgroundcolor(color.yellow);

on map see text want yellow background under text, when add line:

 bitmap.setbackgroundcolor(color.yellow);

i see yellow rectangle on map. want yellow rectangle text. should do? in advance

maybe setting color before initalizing text. (u know, maybe app applying text , after tht overlaying color)


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