In Flutter, communication between widgets can use VoidCallback and Function Callback. VoidCallbacks are callbacks that don't return a value to the Parent Widget. This is useful if we only want to notify the Parent Widget of events that occurred on the Child Widget....
When working with Flutter and using external packages, you often have to change Minsdkversion according to the package you are using. There are several ways to change Minsdkversion in Flutter, for more details, follow the following article. Flutter Before Version 2.8...
Flutter is an open-source framework developed by Google for building beautiful, natively compiled, multi-platform applications from a single codebase. As a mobile app SDK, Flutter enables developers to develop high-quality native interfaces for iOS, Android, Web,...
The HTTP/2 protocol is faster than HTTP/1.1 because it can handle resource queues and handle them simultaneously. HTTP/2 uses a single TCP connection to send multiple streams of data at once so that one resource does not block another resource. HTTP/2 does this by...
Directory Listing allows your website visitors to get a complete list of all the files and folders that live on your site. The browser will display all the contents of the directory if you do not create an “index.html” file in that directory. Protecting your directory...
![[Yii2] Cache Speed Comparison](https://bardimin.com/wp-content/uploads/2021/10/yii2-cache.jpg)
Most website developers tend to ignore caching without realizing that it can harm their applications. A one-second delay in access time can mean you're losing customers or users to competitors. Yii2 supports caching in a variety of methods. Supports fragment caching,...
![[yii2] Gii CRUD Template for One Page Ajax](https://bardimin.com/wp-content/uploads/2021/10/ajaxcrud.jpg)
Gii is an extension, which provides a web-based code generator to generate models, forms, modules, CRUDs, and so on. By default, the following generators are available Generator Model - Generates an ActiveRecord class for a specified database table.CRUD Generator -...
In this article we will create a dashboard that can display graphics from data in real-time. The data we use as simulations is the population of a city. If you update your resident data, add or delete it, the graphic will change in real-time without the need to...
![[Yii2] Create a RESTful API](https://bardimin.com/wp-content/uploads/2021/09/yii2-api.jpg)
An API is software that integrates the applications we create with other applications. The purpose of the creation is to share data between applications that have been integrated. The RESTful API/REST API is the application of the API(Application Programming...
![[Yii2] How to create and use Functions on Yii2](https://bardimin.com/wp-content/uploads/2021/09/yii2-function.jpg)
A function is an organized and reusable block of code that is used to perform one related action or achieve a specific result. In creating applications using Yii2, often we need a function to simplify and speed up the creation of the application we are creating....
One easy method to ensure the security of user accounts is to enforce policies that require periodic password changes. One way to prompt users to change their passwords is to notify them when their passwords are about to expire. While it may not always be necessary,...
Before you edit or modify the Windows registry, back up from that registry. Fatal errors in changing the registry can cause the operating system to not run normally. In some cases, registry damage can only be repaired by reinstalling the operating system and resulting...
The electronic circuitry used to store binary data is known as computer memory. This is achieved by switching very small electronic control positions on or off. In binary code, 1 is denoted by the on position and 0 is denoted by the off position. A bit refers to 0 and...
The most obvious symptom of a faulty power supply is when you turn on the computer and hear a loud noise, smell burning, or see smoke, and the computer won't turn on. Turn off the power immediately, most likely your power supply is damaged. The Power Supply Unit (PSU)...
In Excel, you can restrict users by only allowing data input with the values you have specified. In this article, Bardimin will share some tricks to only allow the input of specific values in Excel cells. Data entry errors are a problem for any Excel user who wants...
Receive by email the latest articles about Computers, Hardware and Software. Contains Guide, Troubleshooting, Tips and Tricks.
Follow the latest Computer, Hardware and Software articles from Bardimin on Social Media.