Tag Archives: Flutter

Flutter Tutorials – Animated Container – Animate a widget in Flutter

By | January 31, 2019

Article shows how to use Animated Containers in Flutter. AnimatedContainer are used for Implicit animations in Flutter. Here we will be investigating AnimatedContainer, AnimatedCrossFade and AnimatedOpacity.   Watch Video Tutorial     AnimatedContainer   This by default uses Linear Interpolation to transition to the new values. Specify the duration to AnimatedCrossFade Here we will animate between two images,… Read More »

Flutter Tutorial – Shared Preferences (Android and iOS)

By | January 29, 2019

This article shows how to implement Shared Preferences in Flutter.   Watch Video Tutorial     Add Dependency   We will be using the shared_preferences plugin from Flutter to implement this.   You can go to this link and read more about it.   Go to your pubspec.yaml file and add the dependency.     Import plugins  … Read More »

Efficient use of Widgets in Flutter Container – Tip

By | January 12, 2019

  I am going to show how to efficiently make use of widgets in Flutter. This is a simple example of how to work with widgets in Flutter. Here we will be creating two widgets that looks similar, but let’s see how many hierarchies or levels of widgets are needed to create such a widget.   Watch Video… Read More »

Flutter Tutorials – AutoComplete TextField

By | January 11, 2019

Hi, Today, I will show you how you can implement AutoComplete TextField in Flutter. Watch Demo   Watch Video Tutorial     Add Library   You can get the Flutter AutoCompleteTextField Library from below link   https://pub.dartlang.org/packages/autocomplete_textfield   Get the package name and add it in the pubspec.yaml file add the dependency. We will also add the http… 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     Usage   To open the gallery     Show Image in the UI   Once the… 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 »

Create Custom Widget(Button) in Flutter – Android or iOS

By | January 3, 2019

Hello friends, In this article, I will show you how you can create custom widgets in Flutter using Widget Composition. As you know Flutter is cross Platform, so this is gonna work for both Android and iOS. Watch Video Tutorial   Let’s start now.   I am going to create a custom button just like you see in… Read More »

Switch Widget in Flutter Android and iOS Demo

By | January 1, 2019

Hello… In this article I am gonna show you how to implement a switch widget in Flutter. Watch Video Tutorial The switch widget has the following syntax. OnChange function is called when the user toggles the button. We have to create a state variable in the parent Widget to hold the state of the switch widget and change… 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 »

Flutter Tutorial – How to listen to onChange in TextField? (Android and iOS)

By | December 23, 2018

TextField is a common component in our applications. In this simple example we will see two ways you can listen to the text changes in a Flutter TextField. Watch Video Tutorial 1. Using OnChange Event This one is simple. Just supply the onChange event of the TextField with a onChange callback. Example 2. Using TextEditingController This is also… Read More »

Flutter Tutorial – Navigation and Passing params between Screens (Android and iOS)

By | December 22, 2018

Hello devs… This is a simple tutorial in which we will see how to navigate between two screens in flutter and pass params from one screen to another screen. Below is the video of the sample app we are going to make… You can watch the complete video tutorial below… Watch Tutorial You can see the video tutorial… Read More »

Service Call in Flutter with Retry Button, Catch Network failures.

By | December 20, 2018

Hello Devs, In today’s tutorial we will find out how we can write a simple service call in flutter and show retry when network call fails. Below is a sample video of the app we are going to make… Watch Video Tutorial You can watch the complete video tutorial from here… Add Library To do service calls in… 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 »

Doing HTTP Calls in Flutter and Parsing Data

By | October 7, 2018

Here is a simple example of doing Http calls in Flutter. In this example we will try to fetch some JSON value from the below url https://jsonplaceholder.typicode.com/posts/1 You can read more from here. Add Dependencies First you need to add the http plugin in dependencies. The latest version of http can be found here (https://pub.dartlang.org/packages/http). Example Lets look… Read More »

Flutter – Saving Data in Local using Shared Preferences

By | October 4, 2018

This simple example demonstrates saving an integer value in the local shared preferences. We will use a flutter plugin called shared_preferences for this. You can read more about the plugin from here. Add Dependency First thing is to add the package to the dependencies. Go to pubspec.yaml and add the package. Example

SQlite Database Operations in Flutter

By | September 27, 2018

Watch Video Tutorial   Add Dependency SQFlite is a Flutter library for doing local Database Operations. You can download it from here. To Integrate SQFlite library in your project In your flutter project add the dependency: You can download the sample project from here. employee.dart Database Utils Here is a sample DB Utility file. DBHelper.dart Implementation Widget This… Read More »

How to show a Snackbar in Flutter? iOS and Android.

By | May 20, 2018

Here is a simple example where the user clicks a button to show a Snackbar. We know that there is no inbuilt snackbar for iOS. But Flutter makes it easy to do without any custom native code. You can see a Demo video here. Here we use two main elements Scaffold Snackbar The Scaffold Widget from the material… Read More »