关于android百度地图 用不同颜色显示规划路线 的问题

List<BitmapDescriptor> customList = new ArrayList<BitmapDescriptor>();
        BitmapDescriptor custom1 = BitmapDescriptorFactory
                .fromResource(R.color.red);
        BitmapDescriptor custom2 = BitmapDescriptorFactory
                .fromResource(R.color.red);
        customList.add(custom1);
        customList.add(custom2);
        //添加到地�?
        points = new ArrayList<LatLng>();
        points.add(pointMiddle);
        points.add(pointEnd);
        ooPolyline = new PolylineOptions().width(10).color(0xAAFF0000).
                points(points).customTextureList(customList).textureIndex(index);
        mBaiduMap.addOverlay(ooPolyline);
        mMapView.refreshDrawableState();