RxSwift

2 hours to master RxSwift - Part 2

In this article we will dig a bit more depth in some core concepts on 2 hours to master RxSwift - Part 1. Section 1: Observable Like mentioned in the

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Needone

1 May 2023 · 6 min read

RxSwift

2 hours to master RxSwift - Part 3

Introduction In the previous post: 2 hours to master RxSwift - Part 1 (needone.app) and 2 hours to master RxSwift - Part 2 (needone.app), we get to know

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Needone

11 Apr 2023 · 3 min read

Swift

2 hours to master RxSwift - Part 1

a simple introudction on rxswift, including what is rxswift, how to use it and a quick example (with swift code) on demo that.

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Needone

14 Mar 2023 · 8 min read

Kotlin

Singleton in Kotlin

In the Kotlin programming language, a singleton is a design pattern that allows you to create only one instance of a class. This is useful when you want to make

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Needone

11 Mar 2023 · 1 min read

Kotlin

Use keystore to store your sensitive in Kotlin

The keystore is a secure storage location in Android that is used to store encryption keys, digital certificates, and other sensitive information. The keystore is encrypted with a hardware-based key,

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Needone

9 Mar 2023 · 1 min read

Swift

Generic type vs. Any in Swift

Generic type In Swift, a generic type is a placeholder for a specific type that is specified when the generic type is used. A generic type allows you to write

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Needone

7 Mar 2023 · 2 min read

iOS

indirect enum in Swift

An indirect enum in Swift is an enum that can be used to define a recursive data structure. This means that one or more of its cases can refer to

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Needone

4 Mar 2023 · 1 min read

Swift

UITraitCollection

UITraitCollection is a class in the UIKit framework that defines a set of interface traits that specify the environment in which your app is running. These traits include the device’

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Needone

2 Mar 2023 · 2 min read

Swift

UIKit vs. SwiftUI - A general discussion

UIKit and SwiftUI are two different frameworks for building user interfaces on Apple platforms. UIKit UIKit is the older of the two frameworks, and has been around since the early

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Needone

28 Feb 2023 · 2 min read

Kotlin

Certificate pinning and Public key pinning in Kotlin

With the last article (Certificate pinning and Public key pinning), we know the concept of Certificate pinning and Public key pinning, and how to implement them in iOS. This article

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Needone

25 Feb 2023 · 1 min read

Encryption and decryption

Certificate pinning and Public key pinning

Certificate pinning and public key pinning are both techniques that are used to enhance the security of a network connection by ensuring that the client trusts only a specific certificate

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Needone

23 Feb 2023 · 3 min read

Android

Download image from URL in Kotlin

In Android, we can get the image from synchronously and asynchronously, but it is more common to see in the later. Download image synchronously To download an image from a

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Needone

21 Feb 2023 · 2 min read