Flutter Image从网络加载图片刷新、强制重新渲染

  Future<bool> evictImage(String imageURL, Map<String, String> headers) async {
    final NetworkImage provider = NetworkImage(imageURL, headers: headers);
    return await provider.evict();
  }

  var imgKey = UniqueKey();

  @override
  Widget build(BuildContext context) {
    return Image.network(
      "https://xxx/xxx.jpg"
      key: imgKey,
    );
  }
  
  在需要刷新的时候调用
  refreshImage(){
    setState((){
      imgKey = UniqueKey();
    })
  }