WheelViewLib/src/main/java/com/lukedeighton/wheelview/WheelView.java
public void setWheelDrawable(Drawable drawable) {
        mWheelDrawable = drawable;

        if (mWheelBounds != null) {
            mWheelDrawable.setBounds(mWheelBounds.getBoundingRect());
            invalidate();
        }
    }
public void setWheelDrawable(Drawable drawable) {
        mWheelDrawable = drawable;

        if (mWheelBounds != null) {
            mWheelDrawable.setBounds(mWheelBounds.getBoundingRect());
            invalidate();
        }
    }
<p>
Sets the wheel's drawable that can also rotate with the items.
</p>
<p>
Note if the drawable has infinite lines of symmetry then you should set the wheel drawable to
not rotate, see {@link #setWheelDrawableRotatable(boolean)}. In other words, if the drawable
doesn't look any different whilst it is rotating, you should improve the performance by
disabling the drawable from rotating.
</p>

@see #setWheelDrawableRotatable(boolean)