Close Multiple Bottom Sheet Modals in Flutter - flutter

I have two bottom sheet modals on a page. In the second modal, I do an action with cubit. On the main page, I listen to the event emitted from cubit, I want to close those two modals from the main page. I have tried these ways:
context.popRoute();
return context.read<BillCubit>().fetch();
or
context
..popRoute()
..popRoute();
return context.read<BillCubit>().fetch();
Both of those codes only close the second modal (last modal).
How to deal with it?

Just use Navigator.of(context).popUntil(ModalRoute.withName('/')); where '/' is the page route before the modals. This is going to pop all modals until it reaches the specified route.
Check out below a minimal reproducible example (also the live demo on DartPad)
import 'package:flutter/material.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: const MyHomePage(),
debugShowCheckedModeBanner: false,
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({Key? key}) : super(key: key);
#override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
void _showModalBottomSheet({int count = 1}) {
showModalBottomSheet(
context: context,
builder: (context) {
return Container(
color: Colors.amber,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text('ModalBottomSheet $count'),
const SizedBox(height: 8),
ElevatedButton(
onPressed: () => _showModalBottomSheet(count: count + 1),
child: const Text('+1'),
),
const SizedBox(height: 8),
ElevatedButton(
onPressed: () {
Navigator.of(context).pop();
},
child: const Text('Close this'),
),
const SizedBox(height: 8),
ElevatedButton(
onPressed: () {
// Pop until the initial page... in that case the root page
Navigator.of(context).popUntil(ModalRoute.withName('/'));
},
child: const Text('Close all'),
),
],
),
);
});
}
#override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: const [
Text(
'Click + to show ModalBottomSheet',
),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: _showModalBottomSheet,
tooltip: 'Show ModalBottomSheet',
child: const Icon(Icons.add),
),
);
}
}

Related

Why I can't switch pages by navigator in flutter?

What I want to do is switch between my pages by using BottomAppBar in my app but it doesn't work. what make it worse is that it doesn't show me any error so I don't know where is the problem.
Thank you for your help :)
import 'package:flutter/material.dart';
import 'package:testing/SecondPage.dart';
void main() {
runApp(const MaterialApp(
title: 'MyApp',
home: MyApp(),
));
}
class MyApp extends StatefulWidget {
const MyApp({Key? key}) : super(key: key);
#override
State<MyApp> createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
#override
Widget build(BuildContext context) {
return MaterialApp(
home: DefaultTabController(
length: 5,
child: Scaffold(
body: Icon(Icons.rice_bowl,size:100,color: Colors.blue,),
floatingActionButton: FloatingActionButton(
hoverElevation: 50,
onPressed: () {},
child: const Icon(Icons.mic),
),
floatingActionButtonLocation:
FloatingActionButtonLocation.centerDocked,
bottomNavigationBar: BottomAppBar(
//color: Colors.blue,
notchMargin: 10,
shape: const CircularNotchedRectangle(),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
IconButton(
onPressed: () {},
icon: const Icon(
Icons.contact_mail_outlined,
color: Colors.grey,
)),
IconButton(
onPressed: () {},
icon: const Icon(
Icons.local_activity,
color: Colors.grey,
)),
Container(
height: 1,
),
IconButton(
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => secondPage()));
},
icon: const Icon(
Icons.safety_check,
color: Colors.grey,
)),
IconButton(
onPressed: () {},
icon: const Icon(
Icons.read_more,
color: Colors.grey,
)),
],
),
)),
),
);
}
}
here is second page:
import 'package:flutter/material.dart';
class secondPage extends StatefulWidget {
const secondPage({Key? key}) : super(key: key);
#override
State<secondPage> createState() => _secondPageState();
}
class _secondPageState extends State<secondPage> {
#override
Widget build(BuildContext context) {
return Container(
child: Icon(Icons.rice_bowl,size: 200,),
);
}
}
I did everything I found in flutter docs but still doesn't work.
I am able to navigate to a new page. However, I am not able to go back (pop) to the previous page.
Since you're pushing a completely new page, you should use a Scaffold() with an AppBar which will provide you with an option to go back to the previous screen.
You're secondPage Widget should look like this:
class secondPage extends StatefulWidget {
const secondPage({Key? key}) : super(key: key);
#override
State<secondPage> createState() => _secondPageState();
}
class _secondPageState extends State<secondPage> {
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(),
body: Container(
child: Text("second page"),
),
);
}
}
Use Scaffold() Widget
Your Problem Will be Solved .

What argument should i give?

In the application, the home page is ResultScreen, which displays the entered data. If they are not there, then when you click on the button, we go to the screen with the input. When I enter text into the input and click on the Display Result button, the data should be substituted into the text field on the first screen. I implemented such functionality, but I don’t understand what argument I should substitute in main.dart. Tell me please
Text Screen:
import 'package:flutter/material.dart';
import 'package:flutter_application_1/screens/result_screen.dart';
class TextScreen extends StatefulWidget {
const TextScreen({Key? key}) : super(key: key);
#override
State<TextScreen> createState() => _TextScreenState();
}
class _TextScreenState extends State<TextScreen> {
TextEditingController textController = TextEditingController();
#override
void dispose() {
textController.dispose();
super.dispose();
}
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Enter data'),
),
body: Padding(
padding: const EdgeInsets.symmetric(horizontal: 16.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisAlignment: MainAxisAlignment.center,
children: [
TextField(
controller: textController,
decoration: InputDecoration(labelText: 'Message'),
),
const SizedBox(
height: 20,
),
ElevatedButton(
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) =>
ResultScreen(textController.text)));
},
child: Text('Display result'))
],
)),
);
}
}
Result Screen:
import 'package:flutter/material.dart';
import 'package:flutter_application_1/screens/text_screen.dart';
class ResultScreen extends StatefulWidget {
final String valueText;
ResultScreen(this.valueText);
#override
State<ResultScreen> createState() => _ResultScreenState();
}
class _ResultScreenState extends State<ResultScreen> {
// navigation to text_screen
void _buttonNav() {
Navigator.push(
context, MaterialPageRoute(builder: (context) => const TextScreen()));
}
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Results'),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
ElevatedButton(
onPressed: _buttonNav, child: const Text('Enter data')),
const SizedBox(
height: 50,
),
Text(valueText),
const SizedBox(
height: 20,
),
],
)),
);
}
}
Main.dart:
import 'package:flutter/material.dart';
import 'package:flutter_application_1/screens/result_screen.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: ResultScreen(),
);
}
}
Use the following code.
What is does is, when we enter the first screen i.e. ResultScreen, we pass an empty value for the first time.
Use this in main.dart
home: ResultScreen(''),
And as you are using statefull widget for ResultScreen, you need to use widget.valueText to access it like:
Text(widget.valueText),

Unable to navigate from GetX Dialog to another screen

I have follow dialog box. When I click 'Next' I want it to navigate to GamePage() screen. But unfortunately it doesn't work.
Following is the GamePage Widget
class GamePage extends StatelessWidget {
final homeCtrl = Get.find<HomeController>();
GamePage({Key? key}) : super(key: key);
#override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: const Color(0xFF8fb1ca),
body: SafeArea(
child: ListView(
children: [
Padding(
padding: EdgeInsets.all(3.0.wp),
child: Row(
children: [
IconButton(
onPressed: () {
Get.back();
},
icon: const Icon(Icons.arrow_back),
),
],
),
),
Padding(
padding: EdgeInsets.symmetric(vertical: 4.0.wp),
child: Column(
children: [
SizedBox(
height: 2.0.wp,
),
Center(
child: Text(
'What ${homeCtrl.currentWord.first.wordtype} is this?',
style: TextStyle(
fontSize: 18.0.sp,
color: Colors.grey[800],
),
),
),
SizedBox(height: 10.0.wp),
WordsWidget(currentWord: homeCtrl.currentWord.first),
],
),
),
],
),
),
);
}
}
Following is the Word Widget being called from GamePage Widget
class WordsWidget extends StatelessWidget {
final currentWord;
WordsWidget({Key? key, this.currentWord}) : super(key: key);
final homeCtrl = Get.find<HomeController>();
#override
Widget build(BuildContext context) {
// var currentWord = homeCtrl.nextWord();
var shuffleword = [].obs;
shuffleword.addAll(homeCtrl.shuffleWord(currentWord.word));
TextToSpeech tts = TextToSpeech();
String language = 'en-US';
tts.setLanguage(language);
return Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: [
ElevatedButton(
onPressed: () {
print('pressed here');
Get.defaultDialog(
title: 'Go to next page',
content: Container(
child: Column(
children: [
Text('You are about to move to another screen'),
ElevatedButton.icon(
onPressed: () {
Get.to(() => GamePage());
},
icon: Icon(
Icons.arrow_right,
),
label: Text('Go'))
],
),
));
},
child: Text('Open Dialog')),
],
);
}
}
Get.back() is working but not Get.to
Try
ElevatedButton(
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (BuildContext context) {
return const GamePage();
},
),
);
},
child: Text("Next Word"),
)
Try this code -
import 'dart:typed_data';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:image_memory/next_page.dart';
import 'package:image_picker/image_picker.dart';
void main() {
//check getMaterialApp is used
runApp(const GetMaterialApp(
title: 'Temp',
home: const MyApp(),
));
}
class MyApp extends StatefulWidget {
const MyApp({Key? key}) : super(key: key);
#override
State<MyApp> createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Image Picker'),
),
body: Center(
child: ElevatedButton(
onPressed: () {
print('pressed here');
Get.defaultDialog(
title: 'Go to next page',
content: Container(
child: Column(
children: [
Text('You are about to move to another screen'),
ElevatedButton.icon(
onPressed: () {
Get.to(() => NextPage());
},
icon: Icon(
Icons.arrow_right,
),
label: Text('Go'))
],
),
));
},
child: Text('Open Dialog')),
),
);
}
}
and next page is -
import 'package:flutter/material.dart';
class NextPage extends StatefulWidget {
const NextPage({ Key? key }) : super(key: key);
#override
State<NextPage> createState() => _NextPageState();
}
class _NextPageState extends State<NextPage> {
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('Next Page'),
),
body: Container(
child: Center(
child: Text("this is next page"),
),
),
);
}
}
And yes, you need to insure that you are using 'GetMaterialApp'.
If you want to use GetX navigation system, you should wrap your application in a GetMaterialApp instead of MaterialApp.
So in your main use this:
class GetxApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return GetMaterialApp(
home: HomePage(),
);
}
}
Instead of this:
class NormalApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(
home: HomePage(),
);
}
}

Bounce Dismissible for helping the user

So we have a Dismissible for confirming/denying a item.
However we have some users that are trying to click/tap on the item.
Our UX team suggested that we then "bounce" the item to show that they have to swipe (and reveal the action fields).
But I don't see any option to do so.
Does anybody have a suggestion what might work for this?
The code I have for now is shown below:
Dismissible(
key: const ValueKey(0),
direction: DismissDirection.horizontal,
child: Container(
margin: EdgeInsets.symmetric(horizontal: 3, vertical: 3),
child: card(),
),
confirmDismiss: (direction) async {
var newStatus = direction == DismissDirection.startToEnd
? OkNokNvt.OK
: OkNokNvt.NOK;
_changeStatus(newStatus);
return false;
},
background: ok(),
secondaryBackground: nok(),
),
The Dismissable doesn't seeem to have this functionality.
Instead, you could use the flutter_slidable package.
Here, you can programmatically open the underlying actions by calling Slideable.of(context)?.open(). No fancy bounce-animation though.
Here's the code:
import 'package:flutter/material.dart';
import 'package:flutter_slidable/flutter_slidable.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
#override
Widget build(BuildContext context) {
return MaterialApp(
theme: ThemeData.dark(),
home: const MyHomePage(),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({Key? key}) : super(key: key);
#override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Bouncing Widget Example'),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Slidable(
key: const Key('key'),
actionPane: const SlidableDrawerActionPane(),
actionExtentRatio: 0.25,
child: Builder(
builder: (context) => GestureDetector(
onTap: () {
Slidable.of(context)
?.open(actionType: SlideActionType.primary);
},
child: Container(
color: Colors.grey,
height: 50,
child: const Center(child: Text('Tap me')),
),
),
),
actions: [
IconSlideAction(
caption: 'Delete',
color: Colors.red,
icon: Icons.delete,
onTap: () => print('remove me from list'),
),
],
dismissal: SlidableDismissal(
onDismissed: (_) => print('remove me from list'),
dragDismissible: true,
child: const SlidableDrawerDismissal(),
),
),
],
),
),
);
}
}
Here is my minimal example which does what you are looking for.
Basically, the GestureDetector onTap callback triggers the animation which has a bouncing-like effect by using a sin function on the _animation.value. The behaviour can be tweeked by changing the parameters cyclesPerAnimation and bounceOffset.
Simply put your Dismissible in the place of the Container and you should be good to go.
environment:
sdk: ">=2.12.0 <3.0.0"
import 'dart:math';
import 'package:flutter/material.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
#override
Widget build(BuildContext context) {
return MaterialApp(
theme: ThemeData.dark(),
home: const MyHomePage(),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({Key? key}) : super(key: key);
#override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage>
with SingleTickerProviderStateMixin {
late final AnimationController _animation = AnimationController(
vsync: this,
duration: const Duration(milliseconds: 500),
);
Offset _bounceOffset(double animationValue) {
const cyclesPerAnimation = 2;
const bounceOffset = 10;
return Offset(
0,
sin(animationValue * pi * 2 * cyclesPerAnimation) * bounceOffset,
);
}
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Bouncing Widget Example'),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
AnimatedBuilder(
animation: _animation,
builder: (context, widget) => Transform.translate(
offset: _bounceOffset(_animation.value),
child: GestureDetector(
onTap: () {
_animation.reset();
_animation.forward();
},
child: Container(
color: Colors.grey,
height: 50,
width: 200,
child: const Center(child: Text('Tap to bounce')),
),
),
),
),
],
),
),
);
}
}

Style clipboard in flutter

I am looking for a way to style the clipboard actions without touching textTheme/button property of the main style theme. Is this even possible?
Seems like the style is directly tied to the theme. Not the best idea but if you really wanted to you would need to create a custom popup and handle all the actions yourself.
This should get you started...
Output:
Code:
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
// This widget is the root of your application.
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
#override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
final _controller = new TextEditingController();
final _textfieldFocusNode = new FocusNode();
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Padding(
padding: EdgeInsets.all(20.0),
child: GestureDetector(
// intercept all pointer calls
behavior: HitTestBehavior.opaque,
onTap: () {
FocusScope.of(context).requestFocus(_textfieldFocusNode);
},
onLongPress: () {
showMenu(
context: context,
// TODO: Position dynamically based on cursor or textfield
position: RelativeRect.fromLTRB(0.0, 300.0, 300.0, 0.0),
items: [
PopupMenuItem(
child: Row(
children: <Widget>[
// TODO: Dynamic items / handle click
PopupMenuItem(
child: Text(
"Paste",
style: Theme.of(context)
.textTheme
.body2
.copyWith(color: Colors.red),
),
),
PopupMenuItem(
child: Text("Select All"),
),
],
),
),
],
);
},
child: IgnorePointer(
// ensures textfield doesn't overrule GestureDetector
child: TextField(
focusNode: _textfieldFocusNode,
controller: _controller,
),
),
),
)
],
),
),
);
}
}