Flutter return list of widgets

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August undefined, 2024

Webscore:1 Accepted answer First you cant use an arrow function to return multiple values, you need to change it to a normal function that returns a list of widgets. Second, you need to use the .toList () method since .map is lazy and you need to iterate in order to map execute. WebDec 22, 2024 · Widget1 does not need to be hooked up to state, and so I don't want it to be rerendered when it changes. It would be great if List.generate could be hooked to a Consumer, but builder needs to return a single Widget, not a list of Widgets. I've tried using the Wrap widget around the list, and hooking that to a Consumer. This …

dart - Creating widgets based on a list - Stack Overflow

WebJun 29, 2024 · List _getActionWidgets () { return StreamBuilder ( ... // what can be done here so that this method would return List ); } Most of the examples out there are for " ListView " using the ListView.builder (...) which is … WebMar 7, 2024 · You could use the Map.map () function to obtain a new Map and then use this new map's values: children : options.map ( (entry) { return MapEntry (entry.key, /*here create the widget from entry.key and entry.value*/);}).values.toList (). – user Mar 7, 2024 at 9:40 flowchart event symbol

convert list of strings to list of widgets in flutter dart

WebHere’s how you can create such a structure with Flutter: Create a data source with different types of items. Convert the data source into a list of widgets. 1. Create a data source with different types of items Types of items To represent different types of items in a list, define a class for each type of item. WebFeb 22, 2024 · When you declare a FutureBuilder you have also to pass it it's data type. In this case it will be: FutureBuilder> ( future: getData (), builder: (context,snapshot) { return ...; } ) If you don't declare its datatype, your snapshot will be considered as an AsyncDataSnapshot instead of … WebJun 6, 2024 · You can also adjust the UI hierarchy to move the Widget that indicates loading status to the more suitable place. For example, when the applicants is null, return Text(“Fetching from mongodb”), otherwise return the applicants list. – greek food ithaca ny

Returning data from a Stateful Widget in Flutter - Stack Overflow

Flutter How to Display a List of Widgets in a Container

WebOct 14, 2024 · As pointed out by other answers, the _buildUserGroups (context) is the problem, as it returns a list of widgets, resulting in a nested list. Since Dart 2.3 (introduced to Flutter at Google I/O '19), you can use the spread operator ..., which will unwrap the inner list, so its elements become elements of the outer list: WebA tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. greek food lake worth fl flowchart examples for kids

"WebMay 10, 2024 · I have simple method like this: List stringsToWidgets ( List? a) { List b = []; for (var item in a) { b.add (Text (item)); } return b; } Column (children: stringsToWidgets ( ["1", "2", "3"])); I have column, and children of it come from this method. How to do it faster in place, without this stringsToWidgets method? " - Flutter return list of widgets

Flutter return list of widgets

dart - Creating widgets based on a list - Stack Overflow

WebMar 6, 2024 · It could look like following: Future> usersFuture = getUsers ('DcofOiHWcjbjD0i18miW'); Create the future as member variable so you only fetch once (in case the method initiates a new future each time you call it). And then use it … Web2 days ago · If you really need this (see comment from @YeasinSheikh) you need to make sure that these global keys are unique within your application. To do so, you can add a GlobalKey to every instance of your MyHomePage and use this key combined with the key you use for the Chip widgets.. Try this code:

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WebJan 15, 2024 · I'm trying to return a list of 2 widgets depending on the swapped value. I tried: Container(child: Row(children: swapped? [a, b]: [b, a],), where a and b are Widget: ... How to pass ternary that return a widget in Flutter. Hot Network Questions What to do if a special case of a theorem is published WebAug 18, 2024 · `List commWidgets = [ Card ( color: Colors.blueGrey [200], child: Column ( children: [ Text ('Commodity 1'), Row ( children: [ Text ('Opening Stock'), Text ('Bought/Sold'), Text ('Closing Stock') ], ) ], ), ), Card ( color: Colors.blueGrey [300], child: Column ( children: [ Text ('Commodity 2'), Row ( children: [ Text ('Opening Stock'), Text …

WebAug 5, 2024 · 3 Answers. generate a list from your d parameter and then generate a list of text field and text editing contotlers from that list. createTexttextfields (int d) { var textEditingControllers = []; var textFields = []; var list = new List.generate (d, (i) =>i + 1 ); print (list); list.forEach ( (i) { var ... Web1 hour ago · IF auth is false, it is not returning the Else condition ** @override Widget build (BuildContext context) { return isAuth ? buildAuthScreen () : buildGuestLogin (context); } Have tried swapping the conditions but still thesame. @override Widget build (BuildContext context) { return isAuth ? buildGuestLogin (context) : buildAuthScreen ();

WebListView.builder ( itemCount: get.length + 2, // add room for the two extra itemBuilder: (BuildContext context, int index) { if (index == 0) { return Text ('Custom any widget'); } if (index == 1) { return Text ('Custom any widget'); } index -= 2; // decrement index so that it's now in the range [0..length] return Bubble ( style: styleSomebody, … WebNov 26, 2024 · Yes, there is a pattern, you can build a model class. import 'package:flutter/material.dart'; class PostModel { Widget sectionHeader; List …

WebMar 17, 2024 · First, you should make your contents array type-safe for easier data handling. Something like this: List> contents = [ { 'chapter': 'Chapter 1 ...

WebFeb 5, 2024 · You can try something like this: Column ( children: [ ..._generateChildrens (myObjects), ], ), And the actual implementation to obtain the widgets is: List _generateChildrens (List myObjects) { var list = … flowchart example for loopWebApr 4, 2024 · The Stateless device is one of the fundamental widgets in Flutter. A Stateless Widget will define a part of the user interface by creating a constellation of the other widgets, which will define your user interface more concretely. The building procedure is constantly recursively until a description of the user interface is completely concrete. flow chart example for projectWeb2 days ago · I'm receiving a list of JSON objects at runtime and dynamically creating a list of sliderWidgets (See Figure 1) based on these JSON Objects.I need to access the sliderValues of these sliderWidgets in the parent widget (being the main screen) when I press the FloatingActionButton, as this will save the sliderValues into a CSV File. greek food lafayette indianaWebflutter-complete-guide-course-resources / Code Snapshots / 05 Interactivity & Theming / 23 Added Chart Widgets / lib / widgets / expenses.dart Go to file Go to file T greek food lafayette coWebAug 16, 2024 · How to return [ ] in flutter? Ask Question Asked 3 years, 7 months ago. Modified 3 years, 7 months ago. Viewed 6k times ... (BuildContext context) { return [ // list of widget ] } I want to implement like this // Other Page. new TabBar( tabs: Tabs() ) flutter; dart; Share. Improve this question. Follow asked Aug 16, … flow chart example of a buffetWebDec 21, 2024 · 1 Answer Sorted by: 5 You can't return a List with build method. build method can only return a Widget . If you want return a List then you create a function and return a List which can be used in children property of … greek food lake countryWebscore:1 Accepted answer First you cant use an arrow function to return multiple values, you need to change it to a normal function that returns a list of widgets. Second, you need to use the .toList () method since .map is … flowchart examples for daily routine