底部溢出 1443 像素的 RenderFlex

Question

I am trying to make it scrollable... enter image description here For some reason its not not scrolling and i tried adding singleChildScrollview still not working.... Pls look at the picture to understand better... so i posted the full code so that you guys can help me better... This was the error i got "Consider applying a flex factor (eg using an Expanded widget) to force the children of the RenderFlex to fit within the available space instead of being sized to their natural size. This is considered an error condition because it indicates that there is content that cannot be seen. If the content is legitimately bigger than the available space, consider clipping it with a ClipRect widget before putting it in the flex, or using a scrollable container rather than a Flex, like a ListView."

import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter/material.dart';
import 'package:memoryblog/helper/authenticate.dart';
import 'package:memoryblog/services/auth.dart';
import 'package:memoryblog/services/database.dart';
import 'package:memoryblog/views/create_blog.dart';

class MemoryRoom extends StatefulWidget {
  @override
  _MemoryRoomState createState() => _MemoryRoomState();
}

class _MemoryRoomState extends State<MemoryRoom> {

  AuthMethod authMethod = new AuthMethod();

  DatabaseMethods databaseMethod = new DatabaseMethods();

  Stream blogsStream;

  Widget BlogsList(){
    return Container(
      child: blogsStream != null ?  Column(
        children: <Widget>[
          StreamBuilder(
            stream: blogsStream,
            builder: (context, snapshot){
              if(snapshot.data == null) return CircularProgressIndicator();
              return ListView.builder(
                  padding: EdgeInsets.symmetric(horizontal: 16),
                  itemCount: snapshot.data.documents.length,
                  shrinkWrap: true,
                  itemBuilder: (context, index){
                    return BlogsTile(
                      authorName: snapshot.data.documents[index].data['memoryName'],
                      title: snapshot.data.documents[index].data['title'],
                      description: snapshot.data.documents[index].data['desc'],
                      imgUrl: snapshot.data.documents[index].data['imgUrl'],
                    );
                  }
              );
            },
          )
        ],
      )  : Container(
        alignment: Alignment.center,
        child: CircularProgressIndicator(),
      )
    );
  }

  @override
  void initState() {
    // TODO: implement initState
    databaseMethod.getData().then((result){
      setState(() {
        blogsStream = result;
      });
    });
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Row(
          children: <Widget>[
            Text(
              "Memory"
            ),
            Text(
              "Blog",
              style: TextStyle(
                color: Colors.blue
              ),
            )
          ],
        ),
        backgroundColor: Colors.transparent,
        elevation: 0.0,
        actions: <Widget>[
          GestureDetector(
            onTap: (){
              authMethod.signOut();
              Navigator.pushReplacement(context, MaterialPageRoute(
                builder: (context) => Authenticate()
              ));
            },
            child: Container(
              padding: EdgeInsets.symmetric(horizontal: 16),
                child: Icon(Icons.power_settings_new)),
          )
        ],
      ),
      body: BlogsList(),
      floatingActionButton: Container(
        padding: EdgeInsets.symmetric(vertical: 20),
        child: Row(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            FloatingActionButton(
              onPressed: (){
                Navigator.push(context, MaterialPageRoute(
                  builder: (context) => CreateBlog()
                ));
              },
              child: Icon(Icons.add),
            )
          ],
        ),
      ),
    );
  }
}

class BlogsTile extends StatelessWidget {

  String imgUrl, title, description, authorName;
  BlogsTile({@required this.imgUrl, @required this.title, @required this.description, @required this.authorName,});
  @override
  Widget build(BuildContext context) {
    return Container(
      margin: EdgeInsets.only(bottom: 16),
      height: 170,
      child: Stack(
        children: <Widget>[
          ClipRRect(
              borderRadius: BorderRadius.circular(6),
              child: CachedNetworkImage(
                imageUrl: imgUrl,
                width: MediaQuery.of(context).size.width,
                fit: BoxFit.cover,
              )
          ),
          Container(
            height: 170,
            decoration: BoxDecoration(
              color: Colors.black45.withOpacity(0.3),
              borderRadius: BorderRadius.circular(6)
            ),
          ),
          Container(
            width: MediaQuery.of(context).size.width,
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              crossAxisAlignment: CrossAxisAlignment.center,
              children: <Widget>[
                Text(
                  title,
                  textAlign: TextAlign.center,
                  style: TextStyle(fontSize: 25, fontWeight: FontWeight.w500),
                ),
                SizedBox(height: 4,),
                Text(
                    description,
                    textAlign: TextAlign.center,
                    style: TextStyle(fontSize: 17, fontWeight: FontWeight.w400),
                ),
                SizedBox(height: 4,),
                Text(authorName)
              ],
            ),
          )
        ],
      ),
    );
  }
}

Answer 1

Use ListView in place of the column. OR Wrap Column with SingleChildScrollView

Answer 2

return Container(
child: blogsStream != null
    ? ListView(
        children: <Widget>[
          StreamBuilder(
            stream: blogsStream,
            builder: (context, snapshot) {
              if (snapshot.data == null) return CircularProgressIndicator();
              return ListView.builder(
                  padding: EdgeInsets.symmetric(horizontal: 16),
                  itemCount: snapshot.data.documents.length,
                  shrinkWrap: true,
                  itemBuilder: (context, index) {
                    return BlogsTile(
                      authorName:
                          snapshot.data.documents[index].data['memoryName'],
                      title: snapshot.data.documents[index].data['title'],
                      description:
                          snapshot.data.documents[index].data['desc'],
                      imgUrl: snapshot.data.documents[index].data['imgUrl'],
                    );
                  });
            },
          )
        ],
      )
    : Container(
        alignment: Alignment.center,
        child: CircularProgressIndicator(),
      ),

);