Flutter TextEditingController class for text fields

TextEditingController can be used with the TextFormField widget to add some good features that we are going to discuss below. It has some interesting properties-

Filter by search keyword in cloud firestore query

This is a problem that you always have to tackle if your app or website has a search box. We want to get all the records that contain a certain keyword that the user enters.

Best cryptocurrency exchanges in India How to buy cryptocurrencies in India 2020

With the ban lifted…

Update data in cloud firestore:{merge:true} in set() operation

So I faced an issue where every time I upload a data set, If the some or all of the documents that I upload already exist in my collection then instead of overwriting It just created new documents so there was redundancy…

Learn SQL: Where, operators, IN, Between, NOT

Using Where clause with logical operators, LIKE and…

Named Routes in flutter for navigating to another screen

To navigate from one screen to another we can either use MaterialPageRoute or pushNamed which uses Named routes.

In Named routes you give each new screen a Name which is a string and thus it is very useful…

Splash Screen in flutter

Here is a quick way to create a splash screen for android apps in flutter.

You can use two kinds of graphics

• A JPG image which you want to display as it is.
• A PNG image (a logo) which you want to display on…

learn SQL: introduction

Definitions and Select statement