HelpAndroid地图标记更改开始和结束颜色，放置不同的细节并添加折线

// 创建地图对象
GoogleMap googleMap = ...;

// 创建起点Marker
MarkerOptions startMarkerOptions = new MarkerOptions()
    .position(new LatLng(startLat, startLng))
    .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_GREEN));
Marker startMarker = googleMap.addMarker(startMarkerOptions);

// 创建终点Marker
MarkerOptions endMarkerOptions = new MarkerOptions()
    .position(new LatLng(endLat, endLng))
    .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED));
Marker endMarker = googleMap.addMarker(endMarkerOptions);

// 创建折线
PolylineOptions polylineOptions = new PolylineOptions()
    .add(new LatLng(startLat, startLng))
    .add(new LatLng(midLat, midLng))
    .add(new LatLng(endLat, endLng))
    .color(Color.BLUE)
    .width(5);
Polyline polyline = googleMap.addPolyline(polylineOptions);

// 设置自定义InfoWindowAdapter
googleMap.setInfoWindowAdapter(new GoogleMap.InfoWindowAdapter() {
    @Override
    public View getInfoWindow(Marker marker) {
        return null;
    }

    @Override
    public View getInfoContents(Marker marker) {
        // 创建自定义的InfoWindow视图
        View view = LayoutInflater.from(context).inflate(R.layout.custom_info_window, null);
        
        // 设置不同的细节
        TextView titleTextView = view.findViewById(R.id.titleTextView);
        TextView descriptionTextView = view.findViewById(R.id.descriptionTextView);
        
        if (marker.equals(startMarker)) {
            titleTextView.setText("起点");
            descriptionTextView.setText("这是起点的描述");
        } else if (marker.equals(endMarker)) {
            titleTextView.setText("终点");
            descriptionTextView.setText("这是终点的描述");
        }
        
        return view;
    }
});