Listview item swipe right open new screen in Flutter - flutter

How to open new screen by swiping to the right of listview item similar to as snapchat app. This is the video link that i want to achieve this.
link
I tried to check with listview slidable but there is no option for navigating to new screen.
Below is the sample dart code of two screens. By swiping right of listview item i want to open TestPage.dart screen. How to achieve this in Flutter?
FirstPage.dart
ListView.builder(
itemCount: 10,
shrinkWrap: true,
scrollDirection: Axis.vertical,
itemBuilder: (BuildContext context, int index) {
return Padding(
padding: const EdgeInsets.all(8.0),
child: Column(
children: [
Row(
children: [
ClipOval(
child: Image.network(
'https://googleflutter.com/sample_image.jpg',
width: 50,
height: 50,
fit: BoxFit.cover,
),
),
Padding(
padding: const EdgeInsets.only(
right: 10.0),
child: Column(
children: [
Row(
mainAxisAlignment:
MainAxisAlignment
.spaceBetween,
children: [
Text(
'Person 1',
style: TextStyle(
color: Colors.red
),
),
const FittedBox(
fit: BoxFit.fitWidth,
child: Text(
'last seen at 8:22 PM'
)
],
),
Padding(
padding: const EdgeInsets.only(
top: 5.0),
child: SizedBox(
width: MediaQuery.of(context)
.size
.width *
0.50,
child:Text('test'),
),
)
],
),
),],),],),);}),
TestPage.dart
class TestPage extends StatefulWidget {
const TestPage({Key? key}) : super(key: key);
#override
State<TestPage> createState() => _TestPageState();
}
class _TestPageState extends State<TestPage> {
#override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.redAccent,
body: Container(),
);
}
}

You can do it by using Dismissible widget like this:
ListView.builder(itemBuilder: ((context, index) => Dismissible(
key: UniqueKey(),
child: ListTile(),
direction: DismissDirection.startToEnd,
onDismissed: (DismissDirection dismissDirection){
Navigator.push(context, PageTransition(type: PageTransitionType.rightToLeft, child: DetailScreen()));
},
)
)
);

Related

Vertical ListView inside ScrollView flutter

My UI use case is similar to an Instagram user profile.
I have multiple widget on top and an infinite ListView.builder bellow with item.
I would like to scroll everything like within a ScrollView but the scrollview can not contain an infinite list.
How can I handle this situation in Flutter ?
Using CustomScrollView is the Solution
Here i have done Basic Implementation for you :
class MainBody extends StatefulWidget {
MainBody({Key key}) : super(key: key);
#override
_MainBodyState createState() => _MainBodyState();
}
class _MainBodyState extends State<MainBody> {
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(),
body: CustomScrollView(
slivers: <Widget>[
SliverToBoxAdapter(
child: Container(
padding:
const EdgeInsets.symmetric(horizontal: 20, vertical: 10),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
Expanded(
child: Container(
height: 100,
width: 100,
decoration: BoxDecoration(
shape: BoxShape.circle, color: Colors.green),
child: Center(child: Text("ProfileImage")),
),
flex: 1,
),
Expanded(flex: 2, child: Text("Profile Statistics"))
],
),
Text("Bio"),
Text("Some Buttons"),
Text("Story Highlights"),
])),
),
SliverToBoxAdapter(
child: Container(
height: 150,
child: ListView.builder(
scrollDirection: Axis.horizontal,
itemCount: 10,
itemBuilder: (context, index) {
return Container(
margin: const EdgeInsets.all(10),
height: 100,
width: 100,
decoration: BoxDecoration(
shape: BoxShape.circle, color: Colors.red),
child: Center(child: Text((index + 1).toString())),
);
})),
),
SliverAppBar(
centerTitle: false,
pinned: true,
flexibleSpace: DefaultTabController(
initialIndex: 0,
length: 2,
child: TabBar(tabs: [
Center(child: Text("Icon1")),
Center(child: Text("Icon2")),
]),
),
),
SliverPadding(
padding: const EdgeInsets.all(8),
sliver: SliverList(
delegate: SliverChildBuilderDelegate(
(context, index) => Container(
height: 30,
child: Center(child: Text("Hey" + index.toString()))),
childCount: 20)),
)
],
),
);
}
}
Futher Enhancements can be done

I am not able to make my app scrollble, despite of having SingleChildScrollView in Flutter

In my app, i have used BlogTile and CategoryTile widgets (which were made by myself) and I am using them in Contaniers/Columns. When I used SingleChildScrollView with CategoryTile, and made axis as horizontal, it was working fine. But as soon as i use it for BlogTile, it doen't work. I am not able to scroll in my app vertically. But when i try to scroll vertically by clicking on the part between CategoryTile and BlogTile, it works. But when i try to scroll by clicking from anyb other section of it, it doesn't work. Please someone help me
Check this code -
import 'package:flutter/material.dart';
import 'package:news_app/helper/data.dart';
import 'package:news_app/helper/news.dart';
import 'package:news_app/models/article_model.dart';
import 'package:news_app/models/category_models.dart';
class Home extends StatefulWidget {
#override
_HomeState createState() => _HomeState();
}
class _HomeState extends State<Home> {
List<CategoryModel> categories = new List<CategoryModel>();
List<ArticleModel> articles = new List<ArticleModel>();
bool loading = true;
#override
void initState() {
// TODO: implement initState
super.initState();
categories = getCategories();
getNews();
}
getNews() async {
News newsClass = News();
await newsClass.getNews();
articles = newsClass.news;
setState(() {
loading = false;
print('Done');
});
}
#override
Widget build(BuildContext context) {
return SafeArea(
child: Scaffold(
appBar: AppBar(
title: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(
'Flutter',
style: TextStyle(
color: Colors.black,
),
),
Text(
'News',
style: TextStyle(
color: Colors.blue,
),
),
],
),
//elevation: 2.0,
),
body: loading
? Center(
child: Container(
child: CircularProgressIndicator(),
),
)
: SingleChildScrollView(
scrollDirection: Axis.vertical,
child: SingleChildScrollView(
child: Container(
padding: EdgeInsets.only(top: 10.0),
child: SingleChildScrollView(
child: Column(
children: <Widget>[
///Categories
Container(
padding: EdgeInsets.symmetric(horizontal: 16.0),
height: 70.0,
child: ListView.builder(
itemCount: categories.length,
scrollDirection: Axis.horizontal,
shrinkWrap: true,
itemBuilder: (context, index) {
return CategoryTile(
imageUrl: categories[index].imageUrl,
categoryName: categories[index].categoryName,
);
},
),
),
SizedBox(
height: 30.0,
),
///Blogs
SingleChildScrollView(
child: Container(
child: ListView.builder(
scrollDirection: Axis.vertical,
shrinkWrap: true,
itemCount: articles.length,
itemBuilder: (context, index) {
return BlogTile(
imageUrl: articles[index].urlToImage,
title: articles[index].title,
desc: articles[index].description,
);
},
),
),
),
],
),
),
),
),
),
),
);
}
}
class CategoryTile extends StatelessWidget {
final imageUrl, categoryName;
CategoryTile({this.imageUrl, this.categoryName});
#override
Widget build(BuildContext context) {
return GestureDetector(
onTap: () {},
child: Container(
margin: EdgeInsets.only(right: 16.0),
child: Stack(
children: <Widget>[
ClipRRect(
borderRadius: BorderRadius.circular(6.0),
child: Image.network(
imageUrl,
width: 120.0,
height: 160.0,
fit: BoxFit.cover,
),
),
Container(
alignment: Alignment.center,
width: 120.0,
height: 160.0,
decoration: BoxDecoration(
color: Colors.black26,
borderRadius: BorderRadius.circular(6.0)),
child: Text(
categoryName,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.w500,
fontSize: 14.0,
),
),
),
],
),
),
);
}
}
class BlogTile extends StatelessWidget {
final String imageUrl, title, desc;
BlogTile(
{#required this.imageUrl, #required this.desc, #required this.title});
#override
Widget build(BuildContext context) {
return Container(
child: Column(
children: <Widget>[
Image.network(imageUrl),
Text(title),
Text(desc),
],
),
);
}
}
I think the issue here is that you're giving unbounded height and width to some of the ScrollViews.
First off, don't use multiple scrolling widgets nested inside one another. But if you want to do that, try wrapping each of your scrollview within a Container like this:
SingleChildScrollView(
scrollDirection: Axis.vertical,
child: Container(
height: 50.0,
width: 50.0,
child: SingleChildScrollView(
child: ...,
),
),
),
What I'd also suggest is that instead of using a SingleChildScrollView, use a ListView widget. It works almost the same and you can put multiple children inside it. A simple ListView() will work. Don't use ListView.builder or any other aggregate function.

How to add a grid to Cupertino Segmented Control in Flutter

I was referring to this link on Git Hub and I'm trying to add a grid to the segment.
My objective is to add images in a grid view to a segment in Cupertino Segmented Control
return Scaffold(
appBar: CupertinoNavigationBar(
middle: Text("awrdfsfsdfs"),
automaticallyImplyLeading: true,
transitionBetweenRoutes: true,
previousPageTitle: AppLocalizations.of(context).tr('alerts.back'),
),
body: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Expanded(
child: ListView(
shrinkWrap: true,
scrollDirection: Axis.vertical,
padding: EdgeInsets.only(top: 20),
children: <Widget>[
CupertinoSegmentedControl(
children: {
0: Text(AppLocalizations.of(context).tr('titles.secImg')),
1: Text(AppLocalizations.of(context).tr('titles.secQuest')),
},
groupValue: _selectedIndexValue,
onValueChanged: (value) {
setState(() => _selectedIndexValue = value);
},
),
_selectedIndexValue == 0 ? IosFirstPage() : IosSecondPage()
],
),
)
],
),
);
}
}
class IosFirstPage extends StatelessWidget {
const IosFirstPage({Key key}) : super(key: key);
#override
Widget build(BuildContext context) {
var imgList = [ ];
return Flex(
direction: Axis.vertical,
children: <Widget>[
Container(
padding: EdgeInsets.only(top: 10,left: 10),
child: Row(
children: <Widget>[
Text(AppLocalizations.of(context).tr('titles.selectSecImg'),style: textTheme.subtitle,textAlign: TextAlign.left,textScaleFactor: 1.2,),
],
)
),
Container(
width: MediaQuery
.of(context)
.size
.width,
height: MediaQuery.of(context).size.height*0.64, //adjust this resize the scroll view of the images
margin: EdgeInsets.only(top: 10,left: 10,right: 10),
color: Colors.white30,
child: GridView.builder(
itemCount: imgList.length,
gridDelegate: new SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: 5),
itemBuilder: (BuildContext context, int index) {
return new GestureDetector(
child: new Card(
elevation: 1.0,
child: new Container(
alignment: Alignment.center,
margin: new EdgeInsets.only(
top: 10.0, bottom: 10.0),
child: new Image.asset(imgList[index], scale: 0.5,)
),
),
onTap: () {
print(index);
/*showDialog(
barrierDismissible: false,
context: context,
child: new CupertinoAlertDialog(
title: new Column(
children: <Widget>[
new Text("GridView"),
new Icon(
Icons.favorite,
color: Colors.red,
),
],
),
content: new Text( imgList[index]),
actions: <Widget>[
new FlatButton(
onPressed: () {
Navigator.of(context).pop();
},
child: new Text("OK"))
],
));*/
},
);
},
),
),
],
);
}
}
class IosSecondPage extends StatelessWidget {
const IosSecondPage({Key key}) : super(key: key);
#override
Widget build(BuildContext context) {
return Container();.
}
}

How to avoid other stack containers?

I have a chat widget that I've been having trouble with given the unique header. Finally figured out how to position the TextComposer at the base of the app and all looks great, however the ListView where the chat's occur overlaps the header after a certain number of text entries. I've been trying to figure out how to position the ListView.builder so that it stays below the header (_buildImage and _buildTopHeader) and doesn't overlap such as in the image below. Unfortunately I haven't been having any luck. Any suggestions would be greatly appreciated!
Thanks!
Header Overlap
#override
Widget build(BuildContext context) {
return Scaffold(
body: SafeArea(
child: Column(
children: <Widget>[
Expanded(
child: Stack(children: <Widget>[
_buildIamge(),
_buildTopHeader(),
Container(
alignment: Alignment.center,
child: new ListView.builder(
padding: new EdgeInsets.all(8.0),
reverse: true,
itemBuilder: (_, int index) => _messages[index],
itemCount: _messages.length,
)),
]),
),
Container(
decoration:
new BoxDecoration(color: Theme.of(context).cardColor),
height: 50.0,
child: _buildTextComposer(),
alignment: Alignment.bottomCenter,
),
],
),
),
resizeToAvoidBottomPadding:false,
);
}
Stack renders its children list in order from top to bottom, with stuff on the bottom rendered over things at the top (it makes sense, I promise). So if you want the ListView to be rendered at the bottom of everything else, put it at the top of the children list:
Stack(
children: <Widget>[
Container(
alignment: Alignment.center,
child: new ListView.builder(
padding: new EdgeInsets.all(8.0),
reverse: true,
itemBuilder: (_, int index) => _messages[index],
itemCount: _messages.length,
),
),
_buildIamge(),
_buildTopHeader(),
],
),
Take a try with Positioned
Demo:
import 'package:flutter/material.dart';
class StackPositionPage extends StatefulWidget {
StackPositionPage({Key key, this.title}) : super(key: key);
final String title;
#override
_StackPositionPageState createState() => _StackPositionPageState();
}
class _StackPositionPageState extends State<StackPositionPage> {
var _headerHeight = 100.0;
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: buildBody(context),
);
}
Widget buildBody(BuildContext context) {
return SafeArea(
child: Column(
children: <Widget>[
Expanded(
child: Stack(children: <Widget>[
_buildIamge(),
_buildTopHeader(),
Positioned(
top: _headerHeight,
left: 0,
right: 0,
bottom: 0,
child: ListView.builder(
padding: new EdgeInsets.all(8.0),
itemBuilder: (_, int index) => Padding(
padding: const EdgeInsets.all(16.0),
child: _buildMessage(index),
),
),
),
]),
),
Container(
color: Colors.blue,
height: 50.0,
alignment: Alignment.bottomCenter,
child: Center(
child: Text("Composer"),
),
),
],
),
);
}
Text _buildMessage(int index) => Text("Message " + (index + 1).toString());
Container _buildTopHeader() {
return Container(
height: _headerHeight,
color: Colors.pink,
child: Center(
child: Text("Header"),
),
);
}
Container _buildIamge() {
return Container(
color: Colors.grey,
);
}
}

Unable to get page scroll even adding the content inside a SingleChildScrollView or the ListView

I'm new to Flutter.
What I'm trying to achieve is a page that has a transparent AppBar with a widget behind it. That's how it looks now:
The problem is that, I can't make the page scroll when the content is bigger then the viewport height, even adding a SingleChildScrollView or adding the content inside a ListView, it just don't scrolls.
This is the page:
import 'package:cinemax_app/src/blocs/movie_bloc.dart';
import 'package:cinemax_app/src/components/movie/movie_header.dart';
import 'package:cinemax_app/src/models/movie.dart';
import 'package:flutter/material.dart';
import 'package:share/share.dart';
import 'package:flutter_widget_from_html_core/flutter_widget_from_html_core.dart';
class MoviePage extends StatefulWidget {
final int movieId;
MoviePage({ this.movieId });
#override
_MoviePageState createState() => _MoviePageState();
}
class _MoviePageState extends State<MoviePage> {
#override
void initState() {
super.initState();
movieBloc.fetchMovie(widget.movieId);
}
#override
Widget build(BuildContext context) {
return StreamBuilder(
stream: movieBloc.movie,
builder: (context, snapshot) {
final _movie = snapshot.data as MovieModel;
return Scaffold(
body: SafeArea(
child: snapshot.hasData ?
Stack(
children: <Widget>[
ListView(
shrinkWrap: true,
children: <Widget>[
MovieHeader(movie: _movie),
Container(
padding: EdgeInsets.only(top: 45, bottom: 15, left: 15, right: 15),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Text('Sinopse:', style: Theme.of(context).textTheme.title),
HtmlWidget(
_movie.sinopsis,
bodyPadding: EdgeInsets.only(top: 15),
textStyle: TextStyle(color: Colors.grey),
)
],
),
)
]
),
AppBar(
backgroundColor: Colors.transparent,
elevation: 0.0,
actions: <Widget>[
PopupMenuButton(
icon: Icon(Icons.more_vert),
itemBuilder: (BuildContext context) {
return <PopupMenuItem>[
PopupMenuItem(
child: Text('Partilhar'),
value: 'share'
),
PopupMenuItem(
child: Text('Comprar bilhete'),
value: 'share',
enabled: false,
),
];
},
onSelected: (selectedPopupValue) {
switch (selectedPopupValue) {
case 'share': {
final movieSlug = _movie.slug;
final movieAddress = 'https://cinemax.co.ao/movie/$movieSlug';
Share.share(movieAddress);
}
}
},
)
],
),
]
) :
Center(
child: CircularProgressIndicator(),
)
),
);
}
);
}
}
The MovieHeader widget:
import 'dart:ui' as prefix0;
import 'package:cached_network_image/cached_network_image.dart';
import 'package:cinemax_app/src/models/movie.dart';
import 'package:flutter/material.dart';
import 'movie_cover.dart';
class MovieHeader extends StatelessWidget {
const MovieHeader({Key key, #required MovieModel movie}) : _movie = movie, super(key: key);
final MovieModel _movie;
#override
Widget build(BuildContext context) {
return Container(
height: 250,
color: Colors.black,
child: Column(
children: <Widget>[
Expanded(
child: Stack(
fit: StackFit.expand,
overflow: Overflow.visible,
children: <Widget>[
new MovieBanner(movie: _movie),
Positioned(
bottom: -15.0,
left: 15.0,
right: 15.0,
child: Container(
child: Row(
crossAxisAlignment: CrossAxisAlignment.end,
children: <Widget>[
Container(
width: 125.0,
child: MovieCover(imageUrl: _movie.coverUrl)
),
Padding(padding: EdgeInsets.only(right: 15.0),),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Row(
children: <Widget>[
Expanded(
child: Text(
_movie.name,
style: TextStyle(
fontSize: 16.0,
fontWeight: FontWeight.bold,
)
),
),
],
),
Padding(padding: EdgeInsets.only(bottom: 10.0),),
Text(
_movie.genresList,
style: TextStyle(
fontSize: 10.0,
color: Colors.white.withOpacity(0.6)
),
),
Padding(padding: EdgeInsets.only(bottom: 35.0),)
],
),
)
],
)
),
)
],
)
),
],
),
);
}
}
class MovieBanner extends StatelessWidget {
const MovieBanner({
Key key,
#required MovieModel movie,
}) : _movie = movie, super(key: key);
final MovieModel _movie;
#override
Widget build(BuildContext context) {
return Stack(
fit: StackFit.expand,
children: <Widget>[
Opacity(
child: CachedNetworkImage(
imageUrl: _movie.bannerUrl,
fit: BoxFit.cover,
),
opacity: 0.5,
),
Positioned(
child: ClipRect(
child: BackdropFilter(
child: Container(color: Colors.black.withOpacity(0)),
filter: prefix0.ImageFilter.blur(sigmaX: 5, sigmaY: 5),
),
),
)
],
);
}
}
Why is it happening? What I'm doing wrong?
An Example of Scrolling ListView using ListView Builder
class ScrollingList extends StatelessWidget{
List<String> snapshot= ["A","B","C","D","E","F","G"]
#override
Widget build(BuildContext context) {
return Scaffold(
body: ListView.builder( //<----------- Using ListViewBuilder
itemCount: snapshot.data.length,
itemBuilder: (BuildContext context, int index) {
return Card( //<--------- Using Card as per my requirement as a wrapper on List tile, you can use any other UI Element
child: ListTile( // populating list tile with tap functionality
title: Text(
'${snapshot.data[index]}',
maxLines: 1,
),
onTap: () {
print('TAPPED = ${snapshot.data[index]}') //<---- do anything on item clicked eg: open a new page or option etc.
}),
);
},
);
)
}
for any reference of single child scroll view here is a link