library/src/main/java/com/arlib/floatingsearchview/FloatingSearchView.java
public void openMenu(boolean withAnim) {
        mMenuOpen = true;
        openMenuDrawable(mMenuBtnDrawable, withAnim);
        if (mOnMenuClickListener != null) {
            mOnMenuClickListener.onMenuOpened();
        }
    }
public void openMenu(boolean withAnim) {
        mMenuOpen = true;
        openMenuDrawable(mMenuBtnDrawable, withAnim);
        if (mOnMenuClickListener != null) {
            mOnMenuClickListener.onMenuOpened();
        }
    }
Mimics a menu click that opens the menu. Useful for navigation
drawers when they open as a result of dragging.