如何使m_Paint这停留2秒再消失

public void PaintButton(Canvas canvas,Paint m_Paint) // 绘制下方方向导航按键和升级位图
{
if(timeTask == 800 || timeTask == 500 || timeTask == 200)
{
if(log_X == 0)
{
canvas.drawBitmap(m_GameResources.Level,170,362, m_Paint);

            log_X = 1;
           }
    }