5 Best uses of FutureBuilder in Flutter
Below are the 5 Best uses of FutureBuilder in Flutter with code in one simple code with comments
How to set scheduledTimer in swift and swiftUI?
Swift’s Timer class is a flexible way to schedule work to happen in the future, either just once or repeatedly. In this guide I will to provide a selection of ways to work with it, along with solutions for common problems. This code: If you’re working in a SwiftUI context, you might prefer using this alternative approach:… Read More »
How to use confirmationDialog in swiftUI?
In SwiftUI, confirmationDialog() is a view modifier that presents a confirmation dialog, offering a way to prompt users for confirmation before performing actions, especially those that might be irreversible or important. It’s similar to an alert, but it slides up from the bottom and allows for multiple buttons with different roles. I’ll create a comprehensive example of using ConfirmationDialog… Read More »
What is init() in Python? Explain in detail.
The __init__() method is known as a constructor in object-oriented programming (OOP) terminology. It is used to initialize an object’s state when it is created. This method is automatically called when a new instance of a class is instantiated. Here is a comprehensive explanation of the __init__() method in Python with detailed examples. Let me break down… Read More »
30 Most Common Python Interview Questions and Answers.
Here are 30 of the most common Python interview questions along with concise answers and examples: 1. What is Python? Python is a high-level, interpreted programming language known for its readability and simplicity. It supports multiple programming paradigms including procedural, object-oriented, and functional programming. 2. What are the key features of Python? 3. What is… Read More »
30 most common SQL queries with examples
Here are the 30 common SQL queries with examples. These cover a wide range of database operations from basic to more advanced. Basic SELECT Queries Filtering and Conditions Aggregations and Grouping Joins Subqueries Data Modification Advanced Queries These queries cover the most common operations you’ll need when working with SQL databases. Each example can be… Read More »
How to implement service call in front end using react native to retrieve server data ?
I’ll walk you through implementing service calls in React Native to retrieve data from a server. First, let’s look at a basic implementation using the Fetch API, which is built into React Native: Now, here’s how you would use this service in a component: For more advanced needs, you might want to use Axios, which… Read More »
100 swift and swiftUI interview questions and answers with detailed explanation.
I’ve created a comprehensive list of 100 Swift interview questions and answers covering key iOS development topics. The questions are organized into several categories: Each question includes a concise answer followed by a detailed explanation that provides context, examples, and best practices. The content covers fundamental Swift concepts like optionals and type safety, advanced topics… Read More »
# Building a Smooth Animated Image Carousel in Flutter
Introduction A well-designed image carousel can greatly enhance the user experience in Flutter apps. In this article, we will create a **beautiful and interactive image slider** using **CarouselController**. We’ll add smooth animations, navigation buttons, and loading indicators to improve usability. Prerequisites To follow along, make sure you have Flutter installed. If you haven’t set it… Read More »
How to send data back to react native from native ios swift using emitter?
To send data from native iOS Swift to React Native, you can use event emitters. Here’s how to set it up: This setup allows you to push data from native Swift code to your React Native application whenever needed, which is useful for handling native events, callbacks from APIs, or any asynchronous operations.
How to access photo in gallery and access camera in iOS swiftUI?
Here is a comprehensive implementation for accessing both the camera and photo gallery in SwiftUI. Here’s a breakdown of the key components: Main Features Permission Texts in Info.plist You’ll need to add these permission strings to your Info.plist file: Implementation Details Key Techniques Used This implementation follows best practices for iOS development, including proper permission… Read More »
How to load data in list in react native?
In React Native, you can load data into a list using components like FlatList or SectionList. Here’s a simple approach using FlatList. The sample implementation is as given below. Let me break down how this React Native code works for loading data into a list: 2. useEffect Hook: 3. fetchData Function: 4. renderItem Function: 5.… Read More »
How to pass data from swift to react native using emitter?
Passing Data from Swift to React Native Using Event Emitters To share data between your Swift native code and React Native JavaScript, you’ll need to use the React Native event emitter system. This creates a communication bridge between the native and JavaScript layers. Let me walk you through the process step by step. Setting Up… Read More »
How to implement persistent storage in swiftUI?
There are multiple ways to implement persistent storage in SwiftUI, including the key property wrappers for state management. Let me explain the key concepts demonstrated in this implementation: 1. @ObservableObject & @Published 2. @StateObject & @EnvironmentObject 3. Persistent Storage Implementation 4. Data Flow This implementation provides several benefits: Thank you for reading!
Create carousal view in swiftUI using tabview and tab?
This implementation creates a smooth, swipeable carousel with page indicators. Here are the key components: The complete code is as given below. Inline comments are given for better understanding of above points. To customize this carousel, you can: Thanks for reading!
What are the built in shapes in swiftUI and how to use them?
SwiftUI supports some in-built shapes that are used to develop a custom design and user interface component. These shapes are easy to use and can customized in various style, colors, fills, transformations, etc. 2. Rectangle 3. Rounded Rectangle. SwiftUI also provide built-in RoundedRectangle() to create a rounded rectangle shape. The rounded rectangle is a very useful shape… Read More »
How different is swiftUI with respect to UIKit?
SwiftUI and UIKit are both iOS development frameworks, but they differ significantly: SwiftUI: Declarative UI design UIKit: Imperative UI construction 2. Code Complexity SwiftUI: Shorter, more readable code UIKit: More verbose, requires more manual configuration 3. Layout Approach SwiftUI: Uses modern compositional layouts with stacks and modifiers UIKit: Relies on Auto Layout and frame-based positioning… Read More »
How multi threading and concurrency is achieved in SwiftUI ?
SwiftUI handles concurrency and multithreading primarily through Swift’s native concurrency features and some SwiftUI-specific patterns. Here’s a comprehensive breakdown: These concurrency features are designed to work together seamlessly with SwiftUI’s declarative nature, ensuring that: The key is that SwiftUI abstracts away much of the complexity of traditional multithreading while providing powerful tools for handling asynchronous… Read More »
How to use GeometryReader for containing one view in another in swiftUI?
There are different ways to limit or constrain a subview within its superview in SwiftUI. ‘GeometryReader’ is one among those for relative sizing of the subviews in a view. We will see different ways of using ‘GeometryReader’ in below examples. 2. CenteredContentExample: 3. ResponsiveContainerExample: 4. ProportionalContainerExample: Key tips for using GeometryReader: a. Always account for… Read More »
Latest changes in swiftUI
Today we will take you through latest changes apple brought in swiftUI. Let me highlight some of the most significant practical changes that developers should focus on. Latest SwiftUI Changes and Features 1. Layout and View Enhancements New Layout Types Layout Modifiers 2. Data Handling Improvements Observable Pattern Data Flow 3. UI Components and Interactions… Read More »
What “URL encoding” or “percent encoding” is?
Read about what ‘addingPercentEncoding‘ is and why it’s important in URL handling. addingPercentEncoding(withAllowedCharacters:) is a String method in Swift that encodes special characters in a string to make it URL-safe. This is often called “URL encoding” or “percent encoding.” Let me break this down with examples: Why URL encoding is necessary? Common character encodings: Here’s… Read More »
Read from plist file in iOS / Swift
What is Plist file? A Property List (Plist) file is a specialized file format used to store structured data. Plist files can contain various data types, including dictionaries, arrays, strings, numbers, dates, and binary data. They are widely used in Apple development for various purposes, such as app configuration, user preferences, and data serialization. Plist files have a .plist file extension and… Read More »
Building a menu using List
In our app this screen will show us a list of items from a menu, so we’re going to use a List view instead of Xcode’s default template code. Below given is the default text when we create a new app in iOS. So, replace the current text view with this: When the preview updates you’ll now… Read More »
Flutter Best Practices – Part 1
Video Tutorial Here is the first part of best practices in Flutter… 1. Placeholder Widgets Use SizedBox instead of Container as Placeholder widgets. Take a look at the below use-case The SizedBox is a const constructor and creates a fixed-size box. The width and height parameters can be null to indicate that the size of the box should not… Read More »
Wrap Widget & Chip Widgets in Flutter
Wrap widget is such a useful widget in many circumstances. Here we will learn about different types of Chip Widgets such as & Wrap Widgets Watch Video Tutorial First Let’s create a simple Chip Widget. Widget chip(String label, Color color) { return Chip( labelPadding: EdgeInsets.all(5.0), avatar: CircleAvatar( backgroundColor: Colors.grey.shade600, child: Text(label[0].toUpperCase()), ), label: Text( label, style:… Read More »