Andhika Yuana andhikayuana

Android Studio Shortcuts (Mac)

Notes:

Two of the most useful shortcuts utilize the Fn (function) keys. It is therefore recommended that you enable the "Use all F1, F2, etc. keys as standard function keys" option [System Preferences > Keyboard].
Be sure to enable the Mac OS X 10.5+ keymap in Android Studio [Preferences > Keymap].
A fairly complete shortcut list can be found here.

Useful symbols:

The introduction to Reactive Programming you've been missing

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

HOWTO Cross compiling on Android

5W1H

What is NDK

NDK (Native Develop Toolkit) is a toolchain from Android official, originally for users who writes native C/C++ code as JNI library. It's not designed for compiling standalone programs (./a.out) and not compatible with automake/cmake etc.

What is Standalone Toolchain

"Standalone" refers to two meanings:

The program is standalone (has nothing connect to NDK, and don't need helper scripts to run it)
The toolchain is made for building standalone programs and libs, and which can used by automake etc.

(Optional) Why NDK is hard to use

By default, NDK uses android flavor directory structure when it's finding headers and libs, which is different from GNU flavor, so the compiler cannot find them. For Example:

Turning PostgreSQL into a queue serving 10,000 jobs per second

RDBMS-based job queues have been criticized recently for being unable to handle heavy loads. And they deserve it, to some extent, because the queries used to safely lock a job have been pretty hairy. SELECT FOR UPDATE followed by an UPDATE works fine at first, but then you add more workers, and each is trying to SELECT FOR UPDATE the same row (and maybe throwing NOWAIT in there, then catching the errors and retrying), and things slow down.

On top of that, they have to actually update the row to mark it as locked, so the rest of your workers are sitting there waiting while one of them propagates its lock to disk (and the disks of however many servers you're replicating to). QueueClassic got some mileage out of the novel idea of randomly picking a row near the front of the queue to lock, but I can't still seem to get more than an an extra few hundred jobs per second out of it under heavy load.

So, many developers have started going straight t

People

`:bowtie:`	😄 `:smile:`	😆 `:laughing:`
😊 `:blush:`	😃 `:smiley:`	☺️ `:relaxed:`
😏 `:smirk:`	😍 `:heart_eyes:`	😘 `:kissing_heart:`
😚 `:kissing_closed_eyes:`	😳 `:flushed:`	😌 `:relieved:`
😆 `:satisfied:`	😁 `:grin:`	😉 `:wink:`
😜 `:stuck_out_tongue_winking_eye:`	😝 `:stuck_out_tongue_closed_eyes:`	😀 `:grinning:`
😗 `:kissing:`	😙 `:kissing_smiling_eyes:`	😛 `:stuck_out_tongue:`

a simple git branching model (written in 2013)

This is a very simple git workflow. It (and variants) is in use by many people. I settled on it after using it very effectively at Athena. GitHub does something similar; Zach Holman mentioned it in this talk.

Update: Woah, thanks for all the attention. Didn't expect this simple rant to get popular.

	Unless specified otherwise, all of the below tinting applies to both Lollipop and pre-Lollipop using AppCompat v21. To use the support version of these attributes, remove the android namespace. For instance, "android:colorControlNormal" becomes "colorControlNormal". These attributes will be propagated to their corresponding attributes within the android namespace for devices running Lollipop. Any exceptions to this will be noted by including the "android:" prefix.

	All Clickable Views:
	-----------
	* ripple effect (Lollipop only) -- "colorControlHighlight"

	Status Bar:
	------------
	* background (Lollipop only) - "colorPrimaryDark"

	# Ruby is our language as asciidoctor is a ruby gem.
	lang: ruby
	before_install:
	- sudo apt-get install pandoc
	- gem install asciidoctor
	script:
	- make
	after_success:
	- .travis/push.sh
	env:

	#!/bin/sh
	base=$1
	convert "$base" -resize '29x29' -unsharp 1x4 "Icon-Small.png"
	convert "$base" -resize '40x40' -unsharp 1x4 "Icon-Small-40.png"
	convert "$base" -resize '50x50' -unsharp 1x4 "Icon-Small-50.png"
	convert "$base" -resize '57x57' -unsharp 1x4 "Icon.png"
	convert "$base" -resize '58x58' -unsharp 1x4 "[email protected]"
	convert "$base" -resize '60x60' -unsharp 1x4 "Icon-60.png"
	convert "$base" -resize '72x72' -unsharp 1x4 "Icon-72.png"
	convert "$base" -resize '76x76' -unsharp 1x4 "Icon-76.png"

	#!/bin/bash

	if [ $# -ne 2 ]; then
	echo "Usage: $0 file partSizeInMb";
	exit 0;
	fi

	file=$1

	if [ ! -f "$file" ]; then