Yi Wang yiwang

Hi all! My app, Love Your Music, needs a cross platform backend shared between a swift and kotlin codebase. UniFFI has been an absolute joy to use, but unfortunately the setup process is a little bit poorly documented. No problem! I got you <3. This tutorial assumes you have a file structure like

Note

Why Rust × Swift? A common use for rust is FFI, which we are actually doing right here anyway! But if you can FFI to Swift, you can FFI to anywhere. Cross platform apps writen in native code (e.g. apps with a Kotlin counterpart) benefit greatly from shared libraries and UniFFI. In addition, the Rust community is significantly larger, and so it's very likely you'll find crates that are more battletested, more featureful, higher performance, more documented, or even nonexistant in Swift.

app/
app.xcodeproj/
app.xcworkspace/
myCrate/

Most active GitHub users (git.io/top)

The count of contributions (summary of Pull Requests, opened issues and commits) to public repos at GitHub.com from Tue, 06 Dec 2016 17:06:46 GMT till Wed, 06 Dec 2017 17:06:46 GMT.

Only first 1000 GitHub users according to the count of followers are taken. This is because of limitations of GitHub search. Sorting algo in pseudocode:

githubUsers
 .filter(user =&gt; user.followers &gt; 1000)

Serializing Binary Data in Rust

The way I like to serialize data in Rust into binary formats is to let a data structure blit itself into a mutable buffer. This is a relatively composable, low level way to work that lends itself to having other abstractions built on top of it. I recently was serializing network packets, so let's make up a small packet format that illustrates how we can do this.

+-------------+-------------+
|  Tag (u16)  | Count (u16) |
+-------------+-------------+
|                           |
~        Entry (u32)        ~

Rapid mobile application development with Python

While there are examples of Python-based apps in mobile App stores, the knowledge of how to actually create a mobile app in Python hasn't been well documented, or simplified for mass use - until now.

In this talk, Dr Russell Keith-Magee will demonstrate a collection of tools from the BeeWare Project that enable you to build a cross-platform mobile app using Python in a matter of minutes.

	from h3 import h3

	geoJson = {'type': 'Polygon',
	'coordinates': [[[37.813318999983238, -122.4089866999972145],
	[ 37.7866302000007224, -122.3805436999997056 ],
	[37.7198061999978478, -122.3544736999993603],
	[ 37.7076131999975672, -122.5123436999983966 ],
	[37.7835871999971715, -122.5247187000021967],
	[37.8151571999998453, -122.4798767000009008]]] }

	/**
	* MacEditorTextView
	* Copyright (c) Thiago Holanda 2020
	* https://twitter.com/tholanda
	*
	* MIT license
	*/

	import Combine
	import SwiftUI

	/*
	example:
	$count_from = "2010-09-30 00:00:01"; // 24-Hour Format: YYYY-MM-DD HH:MM:SS"
	$count_to = date("Y-m-d H:i:s");//today (2012-08-23 00:00:01)
	echo datediff("d",$count_from,$count_to);
	return: 693 (days)
	*/

	function datediff($interval, $datefrom, $dateto, $using_timestamps = false) {
	/*

	[package]
	name = "demo-ssb-client"
	version = "0.1.0"
	authors = ["AljoschaMeyer <mail@aljoscha-meyer.de>"]

	[dependencies]
	tokio = "0.1.3"
	futures = "0.1.18"

	sodiumoxide = "0.0.16"

	# Install arch linux in an encrypted btrfs partition with GPT and UEFI support, gummiboot and hibernate/resume support
	# sources:
	# http://hole.tuziwo.info/install-arch-linux-on-uefi-gpt-computer-with-btrfs-support.html
	# http://www.brunoparmentier.be/blog/how-to-install-arch-linux-on-an-encrypted-btrfs-partition.html
	# https://wiki.archlinux.org/index.php/Dm-crypt/Swap_encryption

	# Take note of this:
	# - The first thing you need is to identify which disk you're going to use. For the purpose of this guide, it will be /dev/sda
	# Be VERY CAREFUL if you have more than one disk on your computer, and DOUBLE CAREFUL if one of them is the one with your backups
	# - Since btrfs does not support swapfiles (yet), we'll create a swap partition. In this guide, it will NOT be encrypted

Yi Wang yiwang

Most active GitHub users (git.io/top)

Serializing Binary Data in Rust

Rapid mobile application development with Python

Audience