GridView.builder 관련 질문 입니다.

주말인데도 불구하고 답변주셔서 감사드립니다. 해결되었습니다. ^^ Widget _buildBody (context) { return Container ( color: Colors. lightBlue , padding: EdgeInsets . all ( 16.0 ) , child: Column ( children : [ _buildProfile() , _buildListview() , ] , ) , ) ; } Widget _buildListview () { return Expanded ( child: StreamBuilder ( stream: Firestore. instance .collection( 'post' ).snapshots() , builder: (context , snapshot) { if (!snapshot. hasData ) { return Center (child: CircularProgressIndicator () , ) ; } return GridView . builder ( gridDelegate: SliverGridDelegateWithFixedCrossAxisCount ( crossAxisCount: 3 , childAspectRatio: 1.0 , mainAxisSpacing: 1.0 , crossAxisSpacing: 1.0 ) , shrinkWrap: false, itemCount: snapshot. data . documents . length , itemBuilder: (BuildContext context , int index) { return _buildListItem(context , snapshot. data . documents [index]) ; } , ) ; } ) , ) ; } -------------------------- GridView.builder 에서 shrinkWrap: true 를 바꿨더니 내용이 나왔습니다. 그런데 아래이미지와 같이 RenderFlex 확장 관련 에러가 발생했습니다. 구글 검색했을때 Container를 Expended로 변경해야한다고 해서 변경해보았지만 전체 화면이 하얗게되면서 내용이 나오지를 않습니다. (사진) import 'package:firebase_auth/firebase_auth.dart' ; import 'package:cloud_firestore/cloud_firestore.dart' ; import 'package:flutter/material.dart' ; import 'package:google_fonts/google_fonts.dart' ; import 'package:google_sign_in/google_sign_in.dart' ; import 'create_page.dart' ; import 'detail_post_page.dart' ; class AccountPage extends StatelessWidget { final FirebaseUser user ; AccountPage( this . user ) ; final GoogleSignIn _googleSignIn = GoogleSignIn () ; @override Widget build (BuildContext context) { return Scaffold ( appBar: _buildAppBar() , body: _buildBody(context) , ) ; } Widget _buildBody (context) { return Container ( color: Colors. lightBlue , padding: EdgeInsets . all ( 16.0 ) , child: Column ( children : [ _buildProfile() , Column ( children: [ _buildListview() , ] , ) , ] ) ) ; } Widget _buildListview () { return Container ( child: StreamBuilder ( stream: Firestore. instance .collection( 'post' ).snapshots() , builder: (context , snapshot) { if (!snapshot. hasData ) { return Center (child: CircularProgressIndicator () , ) ; } return GridView . builder ( gridDelegate: SliverGridDelegateWithFixedCrossAxisCount ( crossAxisCount: 3 , childAspectRatio: 1.0 , mainAxisSpacing: 1.0 , crossAxisSpacing: 1.0 ) , shrinkWrap: true, itemCount: snapshot. data . documents . length , itemBuilder: (BuildContext context , int index) { return _buildListItem(context , snapshot. data . documents [index]) ; } , ) ; } ) , ) ; } Widget _buildProfile () { return Container ( //color: Colors.white, child: Row ( crossAxisAlignment: CrossAxisAlignment. start , mainAxisAlignment: MainAxisAlignment. spaceBetween , mainAxisSize: MainAxisSize. max , children: [ Column ( children: [ Stack ( children: [ SizedBox ( width: 80.0 , height: 80.0 , child: GestureDetector ( onTap: () => print( '이미지 클릭' ) , child: CircleAvatar ( backgroundImage: NetworkImage ( user . photoUrl ) , ) , ) , ) , Container ( //color: Colors.red, width: 80.0 , height: 80.0 , alignment: Alignment. bottomRight , child: Stack ( alignment: Alignment. center , children: [ SizedBox ( width: 28.0 , height: 28.0 , child: FloatingActionButton ( onPressed: null, backgroundColor: Colors. white , ) , ) , SizedBox ( width: 25.0 , height: 25.0 , child: FloatingActionButton ( backgroundColor: Colors. blue , onPressed: null, child: Icon (Icons. add ) , ) , ) , ] , ) , ) , ] , ) , Padding ( padding: EdgeInsets . all ( 8.0 ) , ) , Text ( user . displayName , textAlign: TextAlign. center , style: TextStyle (fontSize: 18.0 , fontWeight: FontWeight. bold ) , ) ] , ) , Padding ( padding: const EdgeInsets . only (top: 8.0 ) , child: StreamBuilder ( stream: _postStraem() , builder: (context , snapshot) { var post = 0 ; if (snapshot. hasData ) { post = snapshot. data . documents . length ; } return Text ( ' $post \n 게시물' , textAlign: TextAlign. center , style: TextStyle (fontSize: 18.0 ) , ) ; } ) , ) , Padding ( padding: const EdgeInsets . only (top: 8.0 ) , child: StreamBuilder ( stream: _followerStream() , builder: (context , snapshot) { var follower = 0 ; if (snapshot. hasData ) { var filteredMap ; if (snapshot. data . data == null ) { filteredMap = [] ; } else { filteredMap = snapshot. data . data ..removeWhere((key , value) => value == false ) ; } follower = filteredMap.length ; } return Text ( ' $follower \n 팔로워' , textAlign: TextAlign. center , style: TextStyle (fontSize: 18.0 ) , ) ; } ) , ) , Padding ( padding: const EdgeInsets . only (top: 8.0 ) , child: StreamBuilder ( stream: _followingStream() , builder: (context , snapshot) { var following = 0 ; if (snapshot. hasData ) { var filteredMap ; if (snapshot. data . data == null ) { filteredMap = [] ; } else { filteredMap = snapshot. data . data ..removeWhere((key , value) => value == false ) ; } following = filteredMap.length ; } return Text ( ' $following \n 팔로잉' , textAlign: TextAlign. center , style: TextStyle (fontSize: 18.0 ) , ) ; } ) , ) , ] , ) , ) ; } Widget _buildListItem (BuildContext context , DocumentSnapshot document) { return Hero ( tag: document. documentID , child: Material ( child: InkWell ( onTap: () { Navigator. push ( context , MaterialPageRoute (builder: (context) => DetailPostPage (document , user )) , ) ; } , child: Image . network ( document[ 'photoUrl' ] , fit: BoxFit. cover , ) , ) , ) , ) ; } Widget _buildAppBar () { return AppBar ( actions: [ IconButton ( icon: Icon (Icons. exit_to_app ) , color: Colors. black , onPressed: () { // 로그아웃 FirebaseAuth. instance .signOut() ; _googleSignIn .signOut() ; } , ) ] , backgroundColor: Colors. white , title: Text ( '내 프로필 보기' , style: GoogleFonts. pacifico () , ) , ) ; } // 내 게시물 가져오기 Stream _postStraem () { return Firestore. instance .collection( 'post' ) .where( 'email' , isEqualTo: user . email ) .snapshots() ; } // 팔로잉 가져오기 Stream _followingStream () { return Firestore. instance .collection( 'following' ) .document( user . email ) .snapshots() ; } // 팔로워 가져오기 Stream _followerStream () { return Firestore. instance .collection( 'follower' ) .document( user . email ) .snapshots() ; } }

GridView.builder 관련 질문 입니다.

답변 감사드려요 ~ 아래와 같이 넣었는데 표시가 안됩니다. import 'package:cloud_firestore/cloud_firestore.dart' ; import 'package:firebase_auth/firebase_auth.dart' ; import 'package:flutter/material.dart' ; import 'package:google_fonts/google_fonts.dart' ; import 'package:google_sign_in/google_sign_in.dart' ; import 'create_page.dart' ; import 'detail_post_page.dart' ; class AccountPage extends StatelessWidget { final FirebaseUser user ; AccountPage( this . user ) ; final GoogleSignIn _googleSignIn = GoogleSignIn () ; @override Widget build (BuildContext context) { return Scaffold ( appBar: _buildAppBar() , body: _buildBody(context) , ) ; } Widget _buildBody (context) { return Container ( //color: Colors.lightBlue, padding: EdgeInsets . all ( 16.0 ) , child: Column ( children : [ _buildProfile() , Column ( children: [ Container ( child: StreamBuilder ( stream: Firestore. instance .collection( 'post' ).snapshots() , builder: (context , snapshot) { if (!snapshot. hasData ) { return Center (child: CircularProgressIndicator () , ) ; } return GridView . builder ( gridDelegate: SliverGridDelegateWithFixedCrossAxisCount ( crossAxisCount: 2 , childAspectRatio: 1.0 , mainAxisSpacing: 1.0 , crossAxisSpacing: 1.0 ) , itemCount: snapshot. data . documents . length , itemBuilder: (BuildContext context , int index) { return _buildListItem(context , snapshot. data . documents [index]) ; } , ) ; } ) , ) , ] , ) , ] ) ) ; } Widget _buildProfile () { return Container ( //color: Colors.white, child: Row ( crossAxisAlignment: CrossAxisAlignment. start , mainAxisAlignment: MainAxisAlignment. spaceBetween , mainAxisSize: MainAxisSize. max , children: [ Column ( children: [ Stack ( children: [ SizedBox ( width: 80.0 , height: 80.0 , child: GestureDetector ( onTap: () => print( '이미지 클릭' ) , child: CircleAvatar ( backgroundImage: NetworkImage ( user . photoUrl ) , ) , ) , ) , Container ( //color: Colors.red, width: 80.0 , height: 80.0 , alignment: Alignment. bottomRight , child: Stack ( alignment: Alignment. center , children: [ SizedBox ( width: 28.0 , height: 28.0 , child: FloatingActionButton ( onPressed: null, backgroundColor: Colors. white , ) , ) , SizedBox ( width: 25.0 , height: 25.0 , child: FloatingActionButton ( backgroundColor: Colors. blue , onPressed: null, child: Icon (Icons. add ) , ) , ) , ] , ) , ) , ] , ) , Padding ( padding: EdgeInsets . all ( 8.0 ) , ) , Text ( user . displayName , textAlign: TextAlign. center , style: TextStyle (fontSize: 18.0 , fontWeight: FontWeight. bold ) , ) ] , ) , Padding ( padding: const EdgeInsets . only (top: 8.0 ) , child: StreamBuilder ( stream: _postStraem() , builder: (context , snapshot) { var post = 0 ; if (snapshot. hasData ) { post = snapshot. data . documents . length ; } return Text ( ' $post \n 게시물' , textAlign: TextAlign. center , style: TextStyle (fontSize: 18.0 ) , ) ; } ) , ) , Padding ( padding: const EdgeInsets . only (top: 8.0 ) , child: StreamBuilder ( stream: _followerStream() , builder: (context , snapshot) { var follower = 0 ; if (snapshot. hasData ) { var filteredMap ; if (snapshot. data . data == null ) { filteredMap = [] ; } else { filteredMap = snapshot. data . data ..removeWhere((key , value) => value == false ) ; } follower = filteredMap.length ; } return Text ( ' $follower \n 팔로워' , textAlign: TextAlign. center , style: TextStyle (fontSize: 18.0 ) , ) ; } ) , ) , Padding ( padding: const EdgeInsets . only (top: 8.0 ) , child: StreamBuilder ( stream: _followingStream() , builder: (context , snapshot) { var following = 0 ; if (snapshot. hasData ) { var filteredMap ; if (snapshot. data . data == null ) { filteredMap = [] ; } else { filteredMap = snapshot. data . data ..removeWhere((key , value) => value == false ) ; } following = filteredMap.length ; } return Text ( ' $following \n 팔로잉' , textAlign: TextAlign. center , style: TextStyle (fontSize: 18.0 ) , ) ; } ) , ) , ] , ) , ) ; } Widget _buildListItem (BuildContext context , DocumentSnapshot document) { return Hero ( tag: document. documentID , child: Material ( child: InkWell ( onTap: () { Navigator. push ( context , MaterialPageRoute (builder: (context) => DetailPostPage (document , user )) , ) ; } , child: Image . network ( document[ 'photoUrl' ] , fit: BoxFit. cover , ) , ) , ) , ) ; } Widget _buildAppBar () { return AppBar ( actions: [ IconButton ( icon: Icon (Icons. exit_to_app ) , color: Colors. black , onPressed: () { // 로그아웃 FirebaseAuth. instance .signOut() ; _googleSignIn .signOut() ; } , ) ] , backgroundColor: Colors. white , title: Text ( '내 프로필 보기' , style: GoogleFonts. pacifico () , ) , ) ; } // 내 게시물 가져오기 Stream _postStraem () { return Firestore. instance .collection( 'post' ) .where( 'email' , isEqualTo: user . email ) .snapshots() ; } // 팔로잉 가져오기 Stream _followingStream () { return Firestore. instance .collection( 'following' ) .document( user . email ) .snapshots() ; } // 팔로워 가져오기 Stream _followerStream () { return Firestore. instance .collection( 'follower' ) .document( user . email ) .snapshots() ; } }