Tag Archives: BuildContext

Performance programming in Flutter using Isolates

By | September 8, 2019

Watch Video Tutorial As you all know Flutter is a single threaded App platform. So then How to do multithreading ?. How to execute heavy operations in one thread ?. How to run big operations without affecting the UI ?. But yes, all these can be achieved with the help of Isolates. What are Isolates? Isolates are similar… Read More »

Offline Database from WebService using SQFlite in Flutter

By | August 11, 2019

We are going to create an Offline Database using data from a Webservice. Watch Video Tutorial We are going to use the below service for that. https://jsonplaceholder.typicode.com/photos This service has about 5000 records, we are going to parse these records and insert all the records into the Offline SQLite database. Generate JSON Models To create json models, make… Read More »

Download ZIP, Extract it and Show the images file in List in UI

By | June 7, 2019

Watch Video Tutorial     Add Plugins   For downloading, Extracting and saving ZIP in the device, we need some plugins. So open your pubspec.yaml file and add the below plugins.   [java] dependencies: flutter: sdk: flutter # The following adds the Cupertino Icons font to your application. # Use with the CupertinoIcons class for iOS style icons.… Read More »

Play Video in Flutter

By | May 30, 2019

This is a simple example to play a video in Flutter. Add Plugin We will use the video player plugin to play video. Go to your pubspec.yaml file in your project and add the below plugin. [java] dependencies: flutter: sdk: flutter … video_player: ^0.10.1 … [/java] Initialiaze the Controller [java] VideoPlayerController _controller; Future<void> _initializeVideoPlayerFuture; @override void initState() {… Read More »

Flutter Tutorial – Select an image from Gallery and show in Imageview

By | January 8, 2019

For selecting an image from the Gallery or Camera roll in Flutter, we need to include a library in pubspec.yaml file under the dependencies that is present in the root of your project. Demo Video     Watch Video Tutorial   [java] dependencies: flutter: sdk: flutter …. image_picker: ^0.4.10 ….. [/java]   Usage   To open the gallery… Read More »

Flutter Tutorials – Form Validation (Android and iOS)

By | January 5, 2019

Hello friends, In this article I am gonna show you how you can do Form Validation in a very simple way in Flutter. Below is the demo of the app we are going to build App Demo   Watch Video Tutorial   Explanation Here in this demo, I will have two TextformField and a Button and we will… Read More »

Flutter – Android, iOS , Native communication Simple Demo

By | December 24, 2018

Hello Devs, You know flutter is now a hot topic. Learning flutter will always help in your future career. In this article we will see how we can communicate between Flutter and Android. Watch Video Tutorial MethodChannel Flutter communicate with Native using “MethodChannel“. So you have to create a method channel with a constant as identifier. Make sure… Read More »

Load data from internet to a GridView in Flutter with Retry Logic, JSON parsing and Error handling in Flutter

By | December 15, 2018

I am assuming that you already have some understanding about Flutter. If you have no information about Flutter SDK, then I could recommend first going to flutter.io and get the initial knowledge. Our Final app will look like this. You can watch the complete video tutorial from here… App will implement GridView JSON Implementation Error Handling Retry Implementation… Read More »

Doing Simple Navigation in Flutter – Simple Example

By | October 12, 2018

Navigation is done is Flutter using the Navigator class. Lets look at a simple example The first thing you have to register routes for difference screen is to build a Map of ‘String’ (route) and the page (Widget).   Lets say I have a utility class for the Creating Routes named routes.dart. The contents of route.dart contains the… Read More »

GridView Demo in Flutter

By | October 10, 2018

Hi Friends, Today we will see how to implement GridView in Flutter.     We are going to use this service for the data First we will create a Model for the Grid Cell [java] class HomeCellVO { int id; String title; String icon; HomeCellVO({this.id, this.title, this.icon}); factory HomeCellVO.fromJson(Map<String, dynamic> json) { return HomeCellVO( id: json[‘id’] as int,… Read More »