使用SvgPicture的确切方法是这样的：

Widget build(BuildContext context) {

  return Scaffold(
    body: Stack(
      children: <Widget>[
        SvgPicture.asset(
          'assets/images/splash/background.svg',
          alignment: Alignment.center,
          width: MediaQuery.of(context).size.width,
          height: MediaQuery.of(context).size.height,
        ),
        Container(
          child: Column(
            children: <Widget>[Expanded(child: _createLogo())],
          ),
        ),
      ],
    ),
  );
}

使用stack（）并在其上构建所有内容如何？这就是我如何做到这一点，只是一个图像作为背景的完整视口。

也可以使用flutter_svg_provider
就像这样：

import 'package:flutter_svg_provider/flutter_svg_provider.dart';

Container(
      decoration: BoxDecoration(
          image: DecorationImage(image: Svg(
            'assets/example.svg',
          ),),
      ),
    )

这对我很有效

import 'dart:ui' as ui;

import 'package:flutter/material.dart';
import 'package:flutter_svg/flutter_svg.dart';

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Container(
      decoration: BoxDecoration(
        image: DecorationImage(
          image: _getSvgImageProvider('assets/background.svg'),
          fit: BoxFit.cover,
        ),
      ),
      child: Center(
        child: Text('Hello World'),
      ),
    );
  }

  ImageProvider _getSvgImageProvider(String assetName) {
    final svgString = DefaultAssetBundle.of(context).loadString(assetName);
    final DrawableRoot svgDrawableRoot = SvgParser.parse(svgString);
    final ui.Picture picture = svgDrawableRoot.toPicture();
    final ui.Image image = picture.toImage(
      svgDrawableRoot.viewport.viewBox.width.toInt(),
      svgDrawableRoot.viewport.viewBox.height.toInt(),
    );
    final provider = MemoryImage(
      Uint8List.view(image.toByteData(format: ui.ImageByteFormat.png).buffer),
    );
    return provider;
  }
}