One of the most common questions in Flutter job interviews
Unlike stateless widgets that we have to destroy and create again every time we want to make some change, stateful widgets have mutable state.One of the questions that often appear in job interviews revolves around the lifecycle of a stateful widget, hence the article dedicated to this topic.
When Flutter builds a stateful widget, it first executes the
constructor function of the widget and then calls the
createState() method. If we look at the stateful widget, the constructor function is executed first. On the other hand, if we look at the
State object of the stateful widget, its lifecycle starts when the
createState() method is called.
_constructor_ function is not part of the lifecycle because the state of the
_widget_ property is empty at that time.
#android #flutter #programming
Here, i will show you how to populate country state city in dropdown list in php mysql using ajax.
You can use the below given steps to retrieve and display country, state and city in dropdown list in PHP MySQL database using jQuery ajax onchange:
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In this video I have discussed about stateful widget and also discussed how to work with text field in flutter.
#statefulwidget #ripplescode #flutter #flutter stateful widget #text field #exploring flutter widgets
Here, i will show you how to create dynamic depedent country state city dropdown list using ajax in laravel.
Follow Below given steps to create dynamic dependent country state city dropdown list with jQuery ajax in laravel:
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From conceptualization to deployment, the process of developing software applications or web applications is complex. By going through several intricate phases of development, a web application or software is tested on multiple levels before being proceeded into production.
In most cases, software application development becomes time-consuming due to its specifications and complexities. In order to deliver the application in a short span of time, software developers are following a universal set of practices called the DevOps lifecycle.
So, what is DevOps in the world of software application development? Let’s deep dive into its meaning, uses, as well as each critical phase in the DevOps lifecycle.
#devops #devops tutorial #devops lifecycle tools #devops lifecycle blocks #devops lifecycle phases #lifecycle of devops
Flutter is a mobile framework that helps to modernize both iOS and Android app from a single codebase. It is a combination of stateful and stateless widgets. Like all frameworks, Flutter also has a lifecycle associated with all the apps that our Flutter app uses. is managed by lifecycle In this article, we will take a look at different types of apps available in the flutter app, lifecycle.
In this article, we will explore the Widget Lifecycle in Flutter. We will also implement a Widget Lifecycle demo, describe its properties, and use them in your flutter applications. So let’s get started.
Table of Contents :
Widget Lifecycle Method
“ Flutter is Google’s UI toolkit that helps you build beautiful and natively combined applications for mobile, web, and desktop in a single codebase in record time, Flutter offers great developer tools, with amazing hot reload”
Everything in Flutter is a Widget, so before knowing about Lifecycle, we should know about Widgets in Flutter.
There are two types of widgets in Flutter.
Before knowing about the Lifecycle, we need to understand the difference between the two widgets.
=> Stateless Widgets: Stateless Widgets in Flutter are those widgets whose state once created cannot be changed, it becomes immutable like on variables, buttons, icons, etc., or any state that cannot be changed on the app to retrieve data. Returns a widget by overwriting the build method. We use it when the UI relies on the information inside the object itself.
#flutter-widget #dart #lifecycle-methods #flutter