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Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

@APP_Mastery
Гео и язык канала: Индия, Английский
Категория: Курсы и гайды

Mobile Dev Hub: iOS, Android & Cross-Platform Coding Tips & Tools

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Фильтр публикаций

Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

26 Mar, 03:07

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Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

20 Mar, 04:37

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3.5k 0 17 6
Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

17 Mar, 16:56

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Minimize the Use of Inline Functions

Defining functions inside JSX might seem convenient, but it can hurt performance by creating new function instances on every render.

❌ Bad Practice:

Each re-render creates a new function, causing unnecessary child component updates.


handlePress(item.id)} />


✅ Better Approach:

Use useCallback to memoize functions and prevent unnecessary re-creation.


const handlePress = useCallback((id) => {
// handle press logic
}, []);




🔥 Why It Matters?

✔️ Reduces re-renders ✅
✔️ Improves performance 🚀
✔️ Keeps code clean & maintainable 💡
4.2k 0 12 8
Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

15 Mar, 15:22

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🚀 Optimize Functional Components with React.memo

Unnecessary re-renders can slow down your React Native app. React.memo helps optimize performance by memoizing functional components and reusing the last rendered output if props haven't changed.

🔹 How It Works:

- Skips re-renders when props remain the same.
- Reduces performance overhead in frequently rendered components.

🔹 Example Usage:


import React, { memo } from 'react';

const Element = ({ value, setValue }) => {
return (
setValue(value * 2)}>
{value}

);
};

export default memo(Element);



✅ Use React.memo when:

- Components are rendered frequently.
- Props remain unchanged across renders.

⚠️ Avoid Overuse: Memoization adds overhead if applied unnecessarily. Use it wisely! 🚀
4.5k 0 9 4
Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

14 Mar, 15:32

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4.4k 0 21 7
Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

12 Mar, 11:15

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5.8k 0 46 2
Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

12 Mar, 11:15

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Xamarin Essential Training: Create Your First App.zip
464.0Мб
📱Mobile Developement
📱Xamarin Essential Training: Create Your First App
5.7k 0 52
Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

12 Mar, 11:15

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📂 Full description

Learn how to create your first app using Xamarin, the cross-platform development solution that helps to simplify the development process by letting developers use C# to create iOS, Android, and Windows apps. Join instructor Matt Milner as he goes over the ins and outs of the setup process, showing you how to develop apps and leverage shared libraries. Along the way, find out how to use native tools to create the user interfaces for each platform. By the end of this course, you'll be equipped with new technical skills to apply layouts, create views, and more.
5.8k 0 38
Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

12 Mar, 11:15

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📱 Xamarin Essential Training: Create Your First App

🌐 Author: Matt Milner
🔰 Level: Beginner

⏰ Duration: 2h 39m

🌀 Learn how to use Xamarin to develop your first cross-platform application for mobile devices running Android, iOS, or Windows.


📗 Topics: Xamarin Products

📤 Join Mobile Developement for more courses
5.7k 0 39 6
Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

10 Mar, 19:35

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🔁 Building Reusable Components: Best Practices

Creating reusable components is key to building scalable React Native apps. A well-structured component library ensures consistency and efficiency. Here’s how to do it right:

✅ Props-Driven Design: Pass styles, text, and actions via props instead of hardcoding.

✅ Use TypeScript: Define prop types for better maintainability and fewer runtime errors.

✅ Optimize Performance: Use React.memo to prevent unnecessary re-renders.

✅ Write Tests: Validate components using Jest & React Native Testing Library.

✅ Document Components: Tools like Storybook help visualize and test UI elements.

Building reusable components saves time and keeps your app organized.
6.3k 0 14 5
Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

18 Feb, 14:18

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Complete_Guide_to_Android_Development_with_Kotlin_for_Beginners.zip
953.0Мб
📱Mobile Developement
📱Complete Guide to Android Development with Kotlin for Beginners
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Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

18 Feb, 14:18

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📂 Full description

This complete guide to Android development with Kotlin offers an overview of the basics of application management for new and early-career Android developers. Explore the foundational skills required to get up and running with everything from creating your first Android application and customizing architectural components like screens, text, and images, to understanding and managing data and storage like a pro. Along the way, instructor Annyce Davis offers practical tips on how to optimize your application and workflow. By the end of this course, youll be prepared to continue with the next steps on your Android learning journey.
11.1k 0 80 18
Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

18 Feb, 14:18

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📱 Complete Guide to Android Development with Kotlin for Beginners

🌐 Author: Annyce Davis
🔰 Level: Beginner

⏰ Duration: 6h 45m

🌀 Get a comprehensive introduction to Android development with Kotlin, from creating your first application to managing data and storage.


📗 Topics: Kotlin, Android Development

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9.7k 0 91 13
Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

17 Feb, 21:06

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Why you should use React Native in 2025

React Native continues to dominate cross-platform mobile development, offering speed, efficiency, and cost savings. Here’s why it remains a top choice:

✅ Faster Development & Cost Efficiency
Code once, run on both iOS & Android—saving time and budget. Hot Reloading boosts productivity.

⚡️ Better Performance
With Fabric & TurboModules, apps are now 5x faster, rivaling native experiences.

🌎 Huge Ecosystem & Community Support
React Native thrives with active contributions & robust libraries for every need.

💡 Used by Tech Giants
Meta, Airbnb, Shopify, Tesla—trusted by the best for scalable apps.

🎯 Future-Proof Technology
Built on JavaScript & TypeScript, ensuring long-term support and easy integration.

📖 Read more: Why React Native in 2025
8.5k 0 19 12
Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

13 Feb, 18:24

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9.1k 0 169 6
Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

13 Feb, 18:24

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📂 Full description

React Native allows you to build native mobile apps using JavaScript and React. In this project-based course, learn how to use React Native to build production-ready, native mobile apps on both iOS and Android. To help acquaint you with the fundamentals of React Native, instructor Samer Buna takes a hands-on approach, showing how to build applications from scratch. He first walks through how to build a simple math game, and then demonstrates how to build a data-driven app. Along the way, he shows how to debug and solve common problems, and shares practical knowledge about testing and packaging your apps.
9.1k 0 67 10
Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

13 Feb, 18:24

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📱 React Native Essential Training

🌐 Author: Samer Buna
🔰 Level: Intermediate

⏰ Duration: 4h 20m

🌀 Discover how to build production-ready, native mobile apps on both iOS and Android using React Native.


📗 Topics: React Native

📤 Join Mobile Developement for more courses
9.2k 0 71 8
Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

10 Feb, 14:46

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⚡️ Optimize Performance with `useCallback`

Using hooks incorrectly can lead to performance issues and memory leaks. One common mistake is redefining functions inside components, which causes unnecessary re-renders.

❌ Incorrect Usage

🔴 Functin recreated on every render, causing performance issues:


const renderItem = ({ item }) => (
handlePress(item.id)} />
);



✅ Optimized Usage with `useCallback`

✅ Memoizes function references to prevent unnecessary re-renders:


const renderItem = useCallback(({ item }) => (

), [handlePress]);

const handlePress = useCallback((id) => {
// operations
}, []);



Using useCallback ensures that renderItem remains the same across renders, significantly improving list performance in React Native apps. 🚀
7.8k 0 12 2
Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

10 Feb, 14:46

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Implementing Dark Mode Support 🌙

Dark mode is no longer just a trend—it’s an essential feature for accessibility and user comfort. Modern apps are expected to adapt to system preferences seamlessly.

🛠 Easy Implementation with React Native

Thanks to React Native’s useColorScheme(), your app can automatically switch themes:

import { NavigationContainer, DefaultTheme, DarkTheme } from '@react-navigation/native';
import { useColorScheme } from 'react-native';

function App() {
const scheme = useColorScheme();

return (

{/* Your app content */}

);
}



For manual theme toggling, use the Appearance API:

import { Appearance } from 'react-native';

// Toggle theme manually
Appearance.setColorScheme('dark');
5.9k 0 10 9
Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor

10 Feb, 14:46

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Boost Your List Performance in React Native! ⚡️

Problem: Low scroll performance and frame drops in lists with large data sets (1000+ items)

✅ Solution:

- FlashList implementation instead of FlatList
- getItemLayout implementation
- ViewabilityConfig optimization
- Item render caching

🔥 Gains:

- Scroll FPS: Increased from 30fps to 58fps
- Initial render time reduced by 40%
- Memory usage decreased by 25%


import { FlashList } from "@shopify/flash-list";

const optimizedList = () => {
const getItemLayout = (data, index) => ({
length: ITEM_HEIGHT,
offset: ITEM_HEIGHT * index,
index,
});

return (

);
};
6k 0 14 11
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