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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.

14 Mar 2023 · 8 min read

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Constructor Injection, Property Injection vs. Method Injection

Dependency Injection is a design pattern that is providing another object with its dependencies, instead of having the object created or managed themselves. There are three main types of dependency

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12 Dec 2022 · 2 min read

Type safe in programming language

Introduction Type safety in programming languages refers to the concept that variables and data structures are strongly typed and cannot be assigned values of different types. This means that the

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9 Dec 2022 · 2 min read

ContentHugging vs. ContentCompressionResistance in UIStackView

In Swift, it is quite common to see ContentHugging and ContentCompressionResistance either when we are using the storyboard or code to render the user interfaces in UIStackView. Those 2 properties

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9 Dec 2022 · 1 min read

Companion Object in Kotlin

Kotlin provides a brand new keyword companion which not exists in other programming languages. But don't be panic, it is not something new when you have one step closer. A

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7 Dec 2022 · 1 min read

Use openssl to create public key and private key

Generally speaking, currently digital encryption methods can be divided into two main categories, symmetric encryption and asymmetric encryption. For symmetric encryption, the same key is used for encryption and decryption.

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7 Mar 2021 · 3 min read

A summary of use enum in Swift

Enumeration type is a common type in many programming languages, which normally presents a set of limited status for a program, such as list all the directions for a compass:

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1 Mar 2021 · 2 min read

Use Extension in Swift

Extension is a great feature in Swift, which can help us to create helper/utility variables and method, and etc. Use extension to conform protocols It is quite common to

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27 Feb 2021 · 1 min read

Property in Swift

Unlike other programming languages, there are three types properties in Swift. Stored Properties They are constants or variables of a class, and part of the class instances that used to

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25 Feb 2021 · 1 min read

How to check whether a mobile device is muted or not on iPhone/iPad

On iOS devices, there are mainly two types of sounds: * Ringtones and reminders: Including system sounds such as phone calls, text messages, notifications (also including key tones, lock sounds, which

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23 Feb 2021 · 2 min read

iOS

Init vs Convenience init in Swift

Initializers, also known as constructors in other programming languages, have two types: Designated init and Convenience init. They are used to initialize properties or customize a variable or object for

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15 Feb 2021 · 2 min read

Git Merge vs Git Rebase

TLDR Both git rebase and git merge are used to synchronise changes between branches. The difference is git rebase will revise the commits but keep a clean organised history, while

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13 Jan 2021 · 2 min read

iOS

iPhone/iPad Redeem promo code to get free App in 2022

This will happen when developers decides to give out some free apps, which sometimes you will see the promo code like this EAJXJEXL7MJH. As many of you might know how

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1 Jan 2021 · 1 min read