Question

Is it possible to change a drawable on a button via java?

Example; I have a button like this.

<Button 
style="@style/Buttons" 
android:id="@+id/butFavTeam"
android:drawableBottom="@drawable/venue"/>

I want to change the current drawableBottom image with another from my drawable directory.

Answer 1

Have you looked at this method:

/*
Sets the Drawables (if any) to appear to the left of, above, to the right of, and below the text. Use 0 if you do not want a Drawable there. The Drawables' bounds will be set to their intrinsic bounds.
*/
public void  setCompoundDrawablesWithIntrinsicBounds  (Drawable left, Drawable top, Drawable right, Drawable bottom)

Try this:

/*remember to first clear the callback of the drawable you are replacing to prevent memory leaks...
* Get the Drawables for the button by calling: myButton.getCompoundDrawables(), then loop through that calling myOldDrawable.setCallback(null);
* e.g:*/

for(Drawable myOldDrawable : myButton.getCompoundDrawables())
{
   myOldDrawable.setCallback(null);
}

//use null where you don't want a drawable
myButton.setCompoundDrawablesWithIntrinsicBounds(null,null,null, myNewDrawable);

I hope that helps.