android - Change color of background drawable of a button from widgetprovider -

in normal android code in activity, can control color of background drawable

drawable d = findviewbyid(r.id.button_highlight).getbackground();   porterduffcolorfilter filter = new porterduffcolorfilter(color.red, porterduff.mode.src_atop);   d.setcolorfilter(filter);  

i know how can utilize within widgetprovider dynamically change background color of background drawable of elements

from instance of appwidgetprovider call like:

int color2 = settings.getint("secondary_color", r.color.main_alt); // following won't work because <button> has no method "setcolorfilter" remoteviews.setint(r.id.button_highlight,"setcolorfilter",color2); 

the button_bg.xml drawable button id r.id.highlight looks this:

<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android">     <item android:state_pressed="true">         <shape>              <corners android:toprightradius="5dp" android:bottomrightradius="5dp"/>             <solid android:color="@color/main_alt"/>             <padding android:bottom="5dp" android:left="5dp" android:right="5dp" android:top="5dp"/>          </shape>     </item>      <item>         <shape>              <corners android:toprightradius="5dp" android:bottomrightradius="5dp"/>             <solid android:color="@color/main"/>             <padding android:bottom="5dp" android:left="5dp" android:right="5dp" android:top="5dp"/>          </shape>     </item> </selector> 

are there workarounds? missing something? how can change color of background drawable? thinking of subclassing button , implement custom methods set color first wanted know if there more common or easier ways..

setcolorfilter(int color, porterduff.mode mode) doesn't have @remotableviewmethod annotation can't used in remoteviews.

my best bet convert drawable bitmap , use remoteviews.setimagebitmap(): http://developer.android.com/reference/android/widget/remoteviews.html#setimageviewbitmap(int, android.graphics.bitmap) haven't tested it's worth trying. found methods don't work in remote views if have @remotableviewmethod annotation, might or might not work.

you'll find answers on how convert drawable bitmap here on so, e.g. here: https://stackoverflow.com/a/9390776/534471