library/src/main/java/com/arlib/floatingsearchview/FloatingSearchView.java
public void showProgress() {
        mLeftAction.setVisibility(View.GONE);
        mSearchProgress.setAlpha(0.0f);
        mSearchProgress.setVisibility(View.VISIBLE);
        ObjectAnimator.ofFloat(mSearchProgress, "alpha", 0.0f, 1.0f).start();
    }
public void showProgress() {
        mLeftAction.setVisibility(View.GONE);
        mSearchProgress.setAlpha(0.0f);
        mSearchProgress.setVisibility(View.VISIBLE);
        ObjectAnimator.ofFloat(mSearchProgress, "alpha", 0.0f, 1.0f).start();
    }
Shows a circular progress on top of the
menu action button.
<p/>
Call hidProgress()
to change back to normal and make the menu
action visible.