Flutter Network Image作为Google Map Marker [英] Flutter Network Image as Google Map Marker

问题描述

我想在屏幕上显示的Google地图上添加网络图像作为标记。该API支持功能 Bitmapdescriptor.fromBytes（）。但是，我不知道如何在网络映像中使用它。

I would like to add a network image as a marker on the google map I have on screen. The API does support a function Bitmapdescriptor.fromBytes(). However, I do not know how to use it with network images.

BitmapDescriptor.fromBytes(byteData);

推荐答案

第一导入此：-

              import 'package:http/http.dart' as http;

主要代码：-

              var iconurl ="your url";
              var dataBytes;
              var request = await http.get(iconurl);
              var bytes = await request.bodyBytes;

              setState(() {
                dataBytes = bytes;
              });

              LatLng _lastMapPositionPoints = LatLng(
                  double.parse("22.7339"),
                  double.parse("75.8499"));

                _markers.add(Marker(
                  icon: BitmapDescriptor.fromBytes(dataBytes.buffer.asUint8List()),
                  markerId: MarkerId(_lastMapPositionPoints.toString()),
                  position: _lastMapPositionPoints,
                  infoWindow: InfoWindow(
                    title: "Delivery Point",
                    snippet:
                    "My Position",
                  ),
                ));

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