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Needone

1 Jan 2024 · 1 min read

iOS

Install specific iOS beta on simulator

Apple release the new iOS SDK every day, as the developer, we want to test our apps on those new SDK before they are officially released. For example, we want

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Needone

16 Sep 2023 · 1 min read

iOS

How to do a deep cleaning for pod

If you are like me, the project is still using the pod to manage the libraries and frameworks. We need to clean the projects from time to time. The following

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Needone

19 Jul 2023 · 1 min read

Swift

Nested class in Swift

A nested class in Swift is a class that is defined within another class. Some key features: * Nested class have access to local variables or constants of the outer class

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Needone

17 Jul 2023 · 1 min read

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