Category "flutter"

Access properties of a flutter class through the content of a variable

I'm in Flutter (Dart), I want to access to a property of a class, but the property that I have to access is defined by the content of another variable. Example:

SharedPreferences in Flutter not persisting?

I'm trying to implement a "Remember Me" functionality by using SharedPreferences. Unfortunately, no matter what I do, it doesn't seem like the login details are

I wants to show the custom progress dialog (similar to iOS default dialog) in flutter

Currently I'm using the default flutter dialog Scaffold( appBar: AppBar( backgroundColor: Color(0xFFB50208), title: const Text('Pro

How do I change Text Input Action Button (return/enter key) on Keyboard in Flutter?

In Android and iOS it is possible to change the enter/return key of the keyboard to e.g. a "Go" button (and other options). On top, we can see the regular "

Download file to Device download folder in Flutter

I'm trying to download files in my flutter app using the dio plugin for which I have to specify a "savePath". But using path_provider I can only see Application

image not showing from internet using Image.network

import 'package:flutter/material.dart'; import 'package:flutter/src/widgets/basic.dart'; void main() { runApp( MaterialApp( home: Scaffold(

Add Key for list of multiple object ~ dart

final uri = Uri.parse( "https://api.binance.com/api/v3/klines?symbol=BTCUSDT&interval=1h"); final res = await http.get(uri); var data = (

How to solve exception caught by widgets library?

I want to use cached network image to display images in my flutter app, however it shows this: ═══════ Exception caugh

Network requests in Flutter app on physical iOS devices are slow

I am working on a cross-platform app using Flutter, for Android, iOS and Web. For some reason though, network requests on iOS are very slow. The app works fine

how to open the pdf document inside web view using flutter

I am creating an app using flutter. I am struggling to open the Portable Document Format inside the web view using flutter. Please help to resolve this body

Flutter Web : "Should never encounter KeyData when transitMode is rawKeyData."

When I run my project on web the Exception message and stack trace was "Should never encounter KeyData when transitMode is rawKeyData." at Object.throw_ [as

Flutter iOS fatal error: 'Flutter/Flutter.h' file not found

When I try to build my iOS I was facing such error I think it's mostly with the webview_flutter package Failed to build iOS app Error output from Xcode build:

charts_flutter PanAndZoomBehavior is not working in a Scrollview

If we implement any chart ( whether it be a Linechart or Barchart from chart_flutter ) and in behaviours we have added charts.PanAndZoomBehavior(), pan and zoom

How to load images with image.file

I can't seem to simply load an image from the hard drive to the screen. Image.network seems straightforward. But I can't figure out how to use Image or Image.

Flutter build apk on release mode cannot generate updated version

I had run this flutter build apk to release my App. Now I had built version 2 of that. Now, I want to release my version 2 App. So, I run flutter build apk aga

Flutter loads old version of app every time I restart the app

Every time I run the flutter app from IntelliJ, it loads an old outdated version of the app from days ago. The new version of the app is only loaded after a hot

How to design Filters in Flutter?

I am new to flutter and I wonder how to develop filters in flutter something like this (screenshot taken from google images), so I just want to know how to do f

Detect when we moved back to previous page in Flutter

We moved from Page1 to Page2 but now from Page2 we move back again to Page1 like this: Navigator.of(context).pop(); How can we detect on Page1 that we went ba

How to make flutter app responsive according to different screen size?

I am facing difficulties to make it responsive according to various screen sizes. How to make it responsive? @override Widget build(BuildContext context)

Add indicator to BottomNavigationBar in flutter

any way to add indicator to BottomNavigatorBarItem like this image?