#NeedOne (Page 9)

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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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Python

Python package importing explained

Python is a powerful and elegant language which makes people obsessed into it (such as me). However, many of the python users are still confused by two question: 1. package

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6 Jan 2019 · 3 min read

Unity

OnTriggerEnter2D v.s. OnCollisionEnter2D

OnCollisionEnter2D: Some collision really happened, means two objects collide with each other. OnTriggerEnter2D: Collision not really happened when you set up Is Trigger is true. For example, if two objects,

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15 Oct 2018 · 1 min read

Barcode and QR code Reader

The most fastest & easy-to-use Barcode/QR Reader - download now for FREE! FEATURES * Code Scanner - scans QR codes & barcodes * Support more than 10 formats, includes ISBN, product barcode, QR

Needone

4 Oct 2018 · 1 min read

Mobile

Load local html resource on Android using webView

Local html and sources are necessary when you try to show an error page dealing with situations such as 404, 500 and etc errors happened on remote server. And here

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28 Aug 2018 · 1 min read

Mobile

Dive into Android Application Lifecycle – A simple tutorial for iOS developers

Introduction Due to some requirements from work, I was asked to immigrate current iOS product into Android. If you are like me, who are mainly working on iOS, but want

Needone

11 Jul 2018 · 3 min read

Mobile

Fastlane Practise with Android and iOS (with examples)

Fastlane Features "The easiest way to build and release mobile apps". Which handles the majority of the manual works Fastlane has the following features: * FREE * Build Alpha/Beta/Production binary,

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6 Jul 2018 · 2 min read

Python

Manage both Python2 and Python3 on your Mac

Step 1: Install Python3 Use brew install python to install python3 on the mac, current version is Python 3.6.5. If your mac has a python2 already, brew will

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11 Jun 2018 · 1 min read

MySQL

MySQL: ERROR 1071 (42000) at line: Specified key was too long; max key length is 767 bytes

When I was doing the development with a recent project, I found out this err: Error: ERROR 1071 (42000) at line 50: Specified key was too long; max key length

Needone

6 Jun 2018 · 1 min read

Other

Create an Auto build script for Aseprite on Mac OS

Aseprite is a famous 2D pixel art tool that allow you to create 2D animations, sprites, and any kind of graphics for games. It is not free, you can get

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10 Apr 2018 · 1 min read

Python

Instance method vs. Static method vs. Class method in Python

In a python class, there are three kinds of methods: * Instance method * Static method * Class method Example explained Look at the following code, have a test for yourself, what are

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30 Mar 2018 · 1 min read

Mobile

Key-Value Coding and Key-Value Observing in Objective-C

What is KVO/KVC KVC(Key-Value Coding) is a coding style which coming from Functional Programming, KVO(Key-Vlaue Observing) is the technology that underlies Cocoa Bindings, and it provides a

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17 Nov 2017 · 2 min read

Mobile

Singleton in Objective-C/Swift

What is behind the Singleton? Singleton: Instantiation of a class to ONLY one object Features of Singleton: 1. One class only can have only one instance; 2. It must can

Needone

11 Nov 2017 · 1 min read