zhiying_base_widget/lib/pages/favorite_page.dart

import 'dart:typed_data';

import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:zhiying_base_widget/template/goods_share_template/goods_share_template.dart';

import 'package:image_gallery_saver/image_gallery_saver.dart';

class FavoritePage extends StatefulWidget {
  @override
  _FavoritePageState createState() => _FavoritePageState();
}

class _FavoritePageState extends State<FavoritePage> {
  GlobalKey globalKey = GlobalKey();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('收藏夹'),
      ),
      body: Column(
        children: <Widget>[
          Container(
            width: 100,
            height: 200,
            child: Transform.scale(
                scale: 0.2, child: GoodsShareTemplate(key: globalKey)),
          ),
          FlatButton(
            child: Icon(Icons.add),
            onPressed: () async {
              BuildContext buildContext = globalKey.currentContext;

              if (null != buildContext) {
                RenderRepaintBoundary boundary =
                buildContext.findRenderObject();
                var image = await boundary.toImage();
                ByteData byteData =
                await image.toByteData(format: ui.ImageByteFormat.png);
                // final result = await ImageGallerySaver.saveImage(
                //     byteData.buffer.asUint8List());
                // var response = await Dio().get(
                //     "https://ss0.baidu.com/94o3dSag_xI4khGko9WTAnF6hhy/image/h%3D300/sign=a62e824376d98d1069d40a31113eb807/838ba61ea8d3fd1fc9c7b6853a4e251f94ca5f46.jpg",
                //     options: Options(responseType: ResponseType.bytes));
                // final result = await ImageGallerySaver.saveImage(
                //     Uint8List.fromList(image),
                //     quality: 60,
                //     name: "hello");
                // print(result);
              }
            },
          )
        ],
      ),
    );
  }
}