I want to show a video in a alertDialog widget but i don't know how to show it in a alertDialog widget. here is my code.
class ResultScreen extends StatelessWidget {
static const routeResult = '/result-screen';
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('The Result'),
backgroundColor: Colors.brown,
elevation: 0.0),
drawer: SideManu(),
body: ListView(children: <Widget>[
Container(
child: Stack(children: <Widget>[
Background(),
MoodText(),
ShowLevel(),
ActivityText(),
ActivityClip()
]))
]));
}
}
this is my code for button to open a video
class ActivityClip extends StatelessWidget {
final List<String> numbers = [
'Soft Music',
'Meditation',
'Pray',
'Breathing',
'Relex'
];
#override
Widget build(BuildContext context) {
return Container(
margin: const EdgeInsets.only(right: 10, left: 10, top: 350),
height: MediaQuery.of(context).size.height * 0.3,
child: ListView.builder(
scrollDirection: Axis.horizontal,
itemCount: numbers.length,
itemBuilder: (context, index) {
return Container(
width: 200,
margin: const EdgeInsets.only(right: 10),
child: RaisedButton(
color: Colors.brown,
child: Container(
child: Center(
child: Text(
numbers[index].toString(),
style: TextStyle(color: Colors.white, fontSize: 30.0),
)),
),
onPressed: () {
activityVideo(context);
//alertDialog to show a video
},
));
}));
}
This is my code for a alertDialog. This dialog i plan to show a video clip.
void activityVideo(BuildContext context){
var alertDialog = AlertDialog(
title: Text("videoclip"),
actions: <Widget>[
FlatButton(
child: Text('Rate'),
onPressed: () {
rateVideo(context);
}),
FlatButton(
child: Text('Finish'),
onPressed: () {
Navigator.of(context).pop();
}),
],
);
showDialog(context: context,
builder: (BuildContext context){
return alertDialog;
}
);
}
Cloud you show me an example the way to show the video. Or if there are any good ways to show the video instead this way you can suggest me. Thank you so much.
here is a picture of my app to make you clearer. This is my page if you click to activity it will popup the video cilp.
home page
This is a dialog that i plan to show a video.
alertDialog
AlertDialog has a content field that you can easily send a widget to it.check document for a simple example. Furthermore, for showing the video you use video_player package. for a simple tutorial check this post published by flutter team.
Related
I am a beginner in Flutter. I am trying to add a new list item widget to screen when floating action button is pressed. How do I achieve this?
I am trying to create a list of items. When the floating action button is clicked, a dialog box is prompted and user is asked to enter details. I want to add a new list item with these user input details.
This is my input_page.dart file which I am calling in main.dart
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
class MedPage extends StatefulWidget {
#override
_MedPageState createState()=> _MedPageState();
}
class _MedPageState extends State<MedPage> {
Future<String>createAlertDialog(BuildContext context) async{
TextEditingController customController= new TextEditingController();
return await showDialog(context: context,builder: (context) {
return AlertDialog(
title: Text("Name of the Pill"),
content: TextField(
controller: customController,
),
actions: <Widget>[
MaterialButton(
elevation: 5.0,
child: Text("OK"),
onPressed: (){
Navigator.of(context).pop(customController.text.toString()); // to go back to screen after submitting
}
)
],
);
});
}
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('My med app'),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget> [
Expanded(
child: ListView(
padding: const EdgeInsets.all(8),
children: <Widget>[
ReusableListItem(Color(0xFFd2fddf),"Name 1"),
ReusableListItem(Colors.orange,"Name 2"),
ReusableListItem(Color(0xFF57a1ab), "Name 3"),
],
),
),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: (){
print("Clicked");
createAlertDialog(context).then((onValue){
print(onValue);
setState(() {
});
});
},
child: Icon(Icons.add),
),
);
}
}
class ReusableListItem extends StatelessWidget {
ReusableListItem(this.colour,this.pill);
Color colour;
String pill;
#override
Widget build(BuildContext context) {
return Container(
height: 50,
margin: const EdgeInsets.all(8),
decoration: BoxDecoration(
color: colour,
borderRadius: BorderRadius.circular(15.0)
),
child: Center(
child: Text(pill)
),
);
}
}
You don't need to change much in your code, maintain a variable that stores the values entered to be able to show them in the list. You should use Listview.builder() in order to dynamically render the items.
Here's your code:
class MedPage extends StatefulWidget {
#override
_MedPageState createState() => _MedPageState();
}
class _MedPageState extends State<MedPage> {
List<String> items = [];
Future<String> createAlertDialog(BuildContext context) async {
TextEditingController customController = new TextEditingController();
return await showDialog(
context: context,
builder: (context) {
return AlertDialog(
title: Text("Name of the Pill"),
content: TextField(
controller: customController,
),
actions: <Widget>[
MaterialButton(
elevation: 5.0,
child: Text("OK"),
onPressed: () {
Navigator.of(context).pop(customController.text
.toString()); // to go back to screen after submitting
})
],
);
});
}
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('My med app'),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget>[
Expanded(
child: ListView.builder(
itemBuilder: (context, index) {
return ReusableListItem(Color(0xFFd2fddf), items[index]);
},
itemCount: items.length,
),
),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: () {
print("Clicked");
createAlertDialog(context).then((onValue) {
// print(onValue);
setState(() {
items.add(onValue);
});
});
},
child: Icon(Icons.add),
),
);
}
}
class ReusableListItem extends StatelessWidget {
ReusableListItem(this.colour, this.pill);
final Color colour;
final String pill;
#override
Widget build(BuildContext context) {
return Container(
height: 50,
margin: const EdgeInsets.all(8),
decoration:
BoxDecoration(color: colour, borderRadius: BorderRadius.circular(15.0)),
child: Center(child: Text(pill)),
);
}
}
Firstly you need to use ListView.builder() rather than ListView because you have dynamic content. Also you need to hold your items in a list.
// create a list before
ListView.builder(
itemCount: list.length,
itemBuilder: (BuildContext context, int index) {
return Text(list[index]);
}
)
When you click on FloatingActionButton() you will call AlertDialog() method.
FloatingActionButton(
onPressed: (){
AlertDialog(
content: Form(), // create your form here
actions: [
// add a button here
]
)
})
This method will show a dialog(you will add a form inside of the dialog). When the user completes the form(after clicking the button) you will add a new object to the list and update the state with setState({})
onPressed: (){
setState({
// add new object to the list here
});
Navigator.pop(context); // this will close the dialog
}
How can I disable a button, in this case a FAB(Floating Action Button), and prevent the user adding more items to the list because he is exceeding the limit and showing a message? I'm using a FutureBuilder and a ListView.builder, after the user adds 3 item to the list, I want to disable the FAB and prevent the user to add more items to the list and showing some sort of notification/message/floating over button message to the user that he is exceeding the limit of 3 items per list. Here is the code:
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'screens/add_items_screen.dart';
import 'components/items_list.dart';
class ItemScreen extends StatelessWidget {
static const String id = 'item_screen';
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
backgroundColor: Colors.white,
iconTheme: IconThemeData(
color: Colors.grey[600],
),
),
/// I want to disable this button after the limit of 3 items in the list view
floatingActionButton: FloatingActionButton(
backgroundColor: Colors.grey,
child: Icon(Icons.add),
onPressed: () {
showModalBottomSheet(
context: context,
isScrollControlled: true,
builder: (context) => SingleChildScrollView(
child: Container(
padding: EdgeInsets.only(
bottom: MediaQuery.of(context).viewInsets.bottom),
child: AddItemScreen(),
)));
},
),
body: SafeArea(
child: SingleChildScrollView(
child: Container(
padding: EdgeInsets.all(20.0),
color: Colors.grey[100],
child: Container(
height: 800,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
'Item List Display',
style: TextStyle(
fontSize: 22.0,
fontWeight: FontWeight.w700,
),
),
SizedBox(
height: 20.0,
),
Expanded(
child: Column(
children: [
/// Here is where the items are rendered as a list
Expanded(child: ItemList()),
],
),
),
],
),
),
),
),
),
);
}
}
The Item list component:
import 'package:flutter/material.dart';
import 'common/api/api_caller.dart';
import 'utilities/item_api_helper.dart';
import 'models/item.dart';
import 'stores/item_store.dart';
import 'dart:async';
import 'package:provider/provider.dart';
class ItemList extends StatefulWidget {
#override
_ItemList createState() => _ItemList();
}
class _ItemList extends State<ItemList> {
Future<HTTPResponse<List<ItemData>>> _getItemList() async {
var _itemData = await APICaller.instance.getItems();
var provider = Provider.of<ItemDatStore>(context, listen: false);
provider.setItemList(_itemData.data, notify: false);
return _itemData;
}
#override
Widget build(BuildContext context) {
return Scaffold(
body: SafeArea(
child: FutureBuilder<HTTPResponse<List<ItemData>>>(
future: _getItemList(),
builder: (context, snapshot) {
if (snapshot.hasData) {
return Consumer<ItemDataStore>(
builder: (context, itemData, child) {
return ListView.builder(
itemCount: itemData.itemList.length,
itemBuilder: (context, index) {
ItemData items =
itemData.getItemByIndex(index);
return Card(
child: Container(
padding: EdgeInsets.all(10.0),
child: Text('items.title'),
),
);
} else if (snapshot.hasError) {
return Text("${snapshot.error}");
}
return Container();
},
),
),
);
}
}
I've tried using an if statement where I can define if(itemData.itemList.length <3) it should return those three items, else {Text('Item limit of 3 is exceeded')} but I'm not sure if this is the right way or if I defined it right since I put it in the Item List component and I need to put it in the Item Screen. Thanks in advance for you help!
You can wrap your Floating action button with Visibility it hides and not woking anymore :)
Visibility(
visible: items.length > 3,
child : FAB here,
),
You can disable the FAB like this
onPressed: items.length < 3? addItemToList : null;
and addItemToList is
void addItemToList(){
// Do Something here
}
So there's something I'm working on and I want to have a list of these "capsules" (rounded rectangle containers). When the user taps on any given one of them, it expands to the full screen, while the rest stay on a lower layer and don't do anything.
I'm using AnimatedContainer and GestureDetector to change their state. When there's only one, it works perfectly for what I want to do. Meanwhile, as soon as I add more in a Column, because it's a single Widget I coded inside a GestureDetector with a single boolean, they all open at the same time. And I understand that even if I code them separately, it will basically just push the surrounding ones out of the way, not open above them. How would I deal with this?
I tried searching this and couldn't find anything helpful. Hopefully the answer to this will help future projects too.
bool chatCapsuleTapped = false;
bool hasFullSize = false;
#override
Widget build(BuildContext context) {
Widget _chatCapsuleAnimation() {
return GestureDetector(
onTap: () {
setState(() {
chatCapsuleTapped = !chatCapsuleTapped;
hasFullSize = true;
});
},
child: AnimatedContainer(
width: !chatCapsuleTapped ? 350 : MediaQuery.of(context).size.width,
height: !chatCapsuleTapped ? 75 : MediaQuery.of(context).size.height,
//color: !chatCapsuleTapped ? Colors.grey.withOpacity(1) : Colors.grey,
decoration: BoxDecoration(
color: !chatCapsuleTapped ? Colors.grey.shade500 : Colors.grey.shade300,
borderRadius: !chatCapsuleTapped ? BorderRadius.circular(40) : BorderRadius.circular(0),
),
child: !chatCapsuleTapped ? Container(child: Container(),) : Container(),
duration: Duration(milliseconds: 500),
curve: Curves.fastOutSlowIn,
),
);
}
return Scaffold(
body: Container(
alignment: Alignment.center,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
_chatCapsuleAnimation(),
],
),
),
);
}
} ```
You can use Hero:
Place each widget inside a Hero widget, assign it a tag based on the index.
Then have a Full-Screen page, which contains the bigger version of the widget, but with the same tag as of the tapped item.
Sample Grabbed from here, you can paste it in DartPad
class MyWidget extends StatelessWidget {
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Basic Hero Animation'),
),
body: SingleChildScrollView(
child: Column(
children: List<Widget>.generate(5, (index) {
return InkWell(
onTap: () {
Navigator.of(context).push(
MaterialPageRoute<void>(
builder: (BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Full-Screen Page'),
),
body: Container(
child: Hero(
// TAG should be same as the tapped item's index
tag: index.toString(),
child: SizedBox(
child: Container(
color: Colors.grey[(index + 1) * 100]),
),
),
),
);
},
),
);
},
child: Hero(
// Assigning tag of item as its index in the list
tag: index.toString(),
child: Container(
height: 200, color: Colors.grey[(index + 1) * 100]),
));
}))),
);
}
}
I've put the destination page within the scope of the main file for simplicity, but you can make a seperate Widget and accept index as parameter for the Bigger Hero's tag
I was trying to get the list page refreshed if a method was run on another page. I do pass the context using the push navigation.
I tried to follow these 3 answers Answer 1 Answer 2 and Answer 3 and I am not able to manage the states here.
This is the first list page which needs to be refreshed. It calls a class
class _PageLocalState extends State<PageLocal> {
#override
Widget build(BuildContext context) {
return Container(
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Expanded(
child: SafeArea(
child: ListView.builder(
scrollDirection: Axis.vertical,
shrinkWrap: true,
itemCount: widget.allLocal.length,
//padding: const EdgeInsets.only(top: 10.0),
itemBuilder: (context, index) {
return LocalCard(widget.allLocal[index]);
},
)),
)
],
),
);
}
}
The next class:
class LocalCardState extends State<LocalCard> {
FavData localdet;
LocalCardState(this.localdet);
ListTile makeListTile() => ListTile(
contentPadding: EdgeInsets.symmetric(horizontal: 20.0, vertical: 10.0),
title: Text(
localdet.name,
style: TextStyle(fontWeight: FontWeight.bold),
),
subtitle: Text(localdet.loc),
trailing: Icon(Icons.keyboard_arrow_right, size: 30.0),
onTap: () => navigateToDetail(localdet),
);
Widget get localCard {
return new Card(
elevation: 4.0,
margin: new EdgeInsets.symmetric(horizontal: 10.0, vertical: 6.0),
child: Container(
child: makeListTile(),
));
}
#override
Widget build(BuildContext context) {
return new Container(
child: localCard,
);
}
navigateToDetail(FavData localdet) {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => FavouriteDetailPage(
mndet: localdet,
)));
setState(() {});
}
}
Now this is routing to the final detail page:
class _FavouriteDetailPageState extends State<FavouriteDetailPage> {
bool isFav = false;
FavData mndet;
_FavouriteDetailPageState(this.mndet);
// reference to our single class that manages the database
final dbHelper = DatabaseHelper.instance;
#override
Widget build(BuildContext context) {
Widget heading = new Container(...);
Widget middleSection = new Expanded(...);
Widget bottomBanner = new Container(...);
Widget body = new Column(...);
final makeBottom = Container(
height: 55.0,
child: BottomAppBar(
color: Color.fromRGBO(36, 36, 36, 1.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
new FavIconWidget(mndet),
],
),
),
);
return Scaffold(
appBar: AppBar(
centerTitle: true,
title: Text('The Details'),
backgroundColor: Color.fromRGBO(36, 36, 36, 1.0),
),
body: Container(
child: Card(
elevation: 5.0,
shape: RoundedRectangleBorder(
side: BorderSide(color: Colors.white70, width: 1),
borderRadius: BorderRadius.circular(10),
),
margin: EdgeInsets.all(20.0),
child: Padding(
padding: new EdgeInsets.symmetric(vertical: 16.0, horizontal: 16.0),
child: body,
),
),
),
bottomNavigationBar: makeBottom,
);
}
void share(BuildContext context, FavData mndet) {
final RenderBox box = context.findRenderObject();
final String shareText = "${mndet.name} - ${mndet.desc}";
Share.share(shareText,
subject: mndet.loc,
sharePositionOrigin: box.localToGlobal(Offset.zero) & box.size);
}
}
class FavIconWidget extends StatefulWidget {
final FavData mnforIcon;
FavIconWidget(this.mnforIcon);
#override
_FavIconWidgetState createState() => _FavIconWidgetState();
}
class _FavIconWidgetState extends State<FavIconWidget> {
final dbHelper = DatabaseHelper.instance;
Future<bool> get isFav async {
final rowsPresent = await dbHelper.queryForFav(widget.mnforIcon.id);
if (rowsPresent > 0) {
print('Card Loaded - Its Favourite already');
return false;
} else {
print('Card Loaded - It is not favourite yet');
return true;
}
}
void _insert() async {...}
void _delete() async {...}
#override
Widget build(BuildContext context) {
return FutureBuilder<bool>(
future: isFav,
initialData:
false, // you can define an initial value while the db returns the real value
builder: (context, snapshot) {
if (snapshot.hasError)
return const Icon(Icons.error,
color: Colors.red); //just in case the db return an error
if (snapshot.hasData)
return IconButton(
icon: snapshot.data
? const Icon(Icons.favorite_border, color: Colors.white)
: Icon(Icons.favorite, color: Colors.red),
onPressed: () => setState(() {
if (!snapshot.data) {
print('Its favourite so deleting it.');
_delete();
} else {
print('Wasnt fav in the first place so inserting.');
_insert();
}
}));
return CircularProgressIndicator(); //if there is no initial value and the future is not yet complete
});
}
}
I am sure this is just some silly coding I have done but just not able to find out. Where.
I tried adding Navigator.pop(context); in different sections of the detail page and it fails.
Currently, I have to navigate back to the Favourites list page and then HomePage and then back to Favourites ListPage to refresh the list.
try this.. Anywhere you are using Navigator.pop or Navigator.push .. Instead of this use this:
Navigator.pushReplacement(context,
MaterialPageRoute(builder: (BuildContext context) => Password())
);
//instead of Password use the name of the page(the second page you want to go to)
I have a Scaffold with a simple Drawer in which I show a menu where a user can press a button. When this button is pressed I want to display a SnackBar, but the SnackBar is always displayed behind the Drawer. Is there some way to show it in front of the Drawer?
The drawer's code looks like:
class MyDrawer extends StatelessWidget {
#override
Widget build(BuildContext context) {
return Drawer(
child: ListView(
children: <Widget>[
ListTile(
leading: Icon(Icons.lock_open),
title: Text('Click Me'),
onTap: () {
Scaffold.of(context).showSnackBar(SnackBar(
content: Text(
'Test.',
)));
},
),
],
),
);
}
}
and it is used directly in the Scaffold:
return Scaffold(
drawer: MyDrawer(),
[...]
They said Drawer must be on the top of UI under MaterialDesign rules. But if you wanna such behaviour too much you can write own SnackBar.
static void showSnackBarAsBottomSheet(BuildContext context, String message)
{
showModalBottomSheet<void>(
context: context,
barrierColor: const Color.fromRGBO(0, 0, 0, 0),
builder: (BuildContext context) {
Future.delayed(const Duration(seconds: 5), () {
try {
Navigator.pop(context);
} on Exception {}
});
return Container(
color: Colors.grey.shade800,
padding: const EdgeInsets.all(12),
child: Wrap(children: [
Text(
message,
style:
GoogleFonts.robotoCondensed().copyWith(color: Colors.white),
)
]));
},
);
}
I've solved it by adding one more Scaffold inside Drawer and making its background transparent:
return Scaffold(
drawer: Scaffold(
backgroundColor: Colors.transparent,
body: MyDrawer(),
[...]