百度地图绘制轨迹方法（PolylineOptions）

//List
 
   list;
//路径、起点、终点
BitmapDescriptor trace = BitmapDescriptorFactory.fromResource(R.mipmap.trace);
BitmapDescriptor start = BitmapDescriptorFactory.fromResource(R.mipmap.start);
BitmapDescriptor end = BitmapDescriptorFactory.fromResource(R.mipmap.end);
if (list.size() > 0) {
    //添加起点、终点
	OverlayOptions startOptions = new MarkerOptions().position(list.get(0)).icon(start);
	OverlayOptions endOptions = new MarkerOptions().position(list.get(list.size() - 1)).icon(end);
	mBaiduMap.addOverlay(startOptions);
	mBaiduMap.addOverlay(endOptions);
}
//绘制直线
PolylineOptions polylineOptions = new PolylineOptions().width(20).customTexture(trace).points(list).dottedLine(false);
mBaiduMap.addOverlay(polylineOptions);