Android drawable 在以编程方式更改时变为黑色和白色

Question

I have a Floating action button that has a drawable as a source looking like this (the chef button) -

Later on in my app I change it's source programatically to another source, and then back to the original source with this code -

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        HomePageActivity.getChefButton().setImageDrawable(getResources().getDrawable(R.drawable.chef_white, getContext().getTheme()));
    } else {
        HomePageActivity.getChefButton().setImageDrawable(getResources().getDrawable(R.drawable.chef_white));
    }

but then it looks like this -

Any ideas on how to prevent this?

Answer 1

Found the solution.

I added -

  app:tint="@null"

to the floating button and it worked.