本工程为基于高德地图Android SDK进行封装，实现了点沿线平滑移动的效果。
基于3D地图SDK进行封装，实现了Marker点在线上进行平滑移动的例子。
// 获取轨迹坐标点
List<LatLng> points = readLatLngs();
LatLngBounds bounds = new LatLngBounds(points.get(0), points.get(points.size() - 2));
mAMap.animateCamera(CameraUpdateFactory.newLatLngBounds(bounds, 50));
SmoothMoveMarker smoothMarker = new SmoothMoveMarker(mAMap);
// 设置滑动的图标
smoothMarker.setDescriptor(BitmapDescriptorFactory.fromResource(R.drawable.icon_car));
LatLng drivePoint = points.get(0);
Pair<Integer, LatLng> pair = SpatialRelationUtil.calShortestDistancePoint(points, drivePoint);
points.set(pair.first, drivePoint);
List<LatLng> subList = points.subList(pair.first, points.size());
// 设置滑动的轨迹左边点
smoothMarker.setPoints(subList);
// 设置滑动的总时间
smoothMarker.setTotalDuration(40);
// 开始滑动
smoothMarker.startSmoothMove();
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