jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

xrigau

<?xml version="1.0" encoding="utf-8"?>
<manifest
  xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.novoda.espresso">
  
  <!-- For espresso testing purposes, this is removed in live builds, but not in dev builds -->
  <uses-permission android:name="android.permission.SET_ANIMATION_SCALE" />

  <!-- ... -->
  

a-m-s

/* MediaDecoder
 
   Author: Andrew Stubbs (based on some examples from the docs)
 
   This class opens a file, reads the first audio channel it finds, and returns raw audio data.
   
   Usage:
      MediaDecoder decoder = new MediaDecoder("myfile.m4a");
      short[] data;
      while ((data = decoder.readShortData()) != null) {

protrolium

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

You can get the list of installed codecs with:

cmelchior

// GSON can parse the data.
//
// Deserialization:
// Note there is a bug in GSON 2.3.1 that can cause it to StackOverflow when working with RealmObjects.
// To work around this, use the ExclusionStrategy below or downgrade to 1.7.1
// See more here: https://code.google.com/p/google-gson/issues/detail?id=440
//
// Serialization:
// <Type>RealmProxy objects are created by the Realm annotation processor. They are used to control
// access to the actual data instead of storing them in fields and it is therefore them we need to register a

MichaelRocks

/*
 * Copyright 2015 Michael Rozumyanskiy
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software

halysongoncalves

import android.util.Log;

import java.io.IOException;

import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;


/**

vinicius5581

javascript:(function(){function c(){var e=document.createElement("link");e.setAttribute("type","text/css");e.setAttribute("rel","stylesheet");e.setAttribute("href",f);e.setAttribute("class",l);document.body.appendChild(e)}function h(){var e=document.getElementsByClassName(l);for(var t=0;t<e.length;t++){document.body.removeChild(e[t])}}function p(){var e=document.createElement("div");e.setAttribute("class",a);document.body.appendChild(e);setTimeout(function(){document.body.removeChild(e)},100)}function d(e){return{height:e.offsetHeight,width:e.offsetWidth}}function v(i){var s=d(i);return s.height>e&&s.height<n&&s.width>t&&s.width<r}function m(e){var t=e;var n=0;while(!!t){n+=t.offsetTop;t=t.offsetParent}return n}function g(){var e=document.documentElement;if(!!window.innerWidth){return window.innerHeight}else if(e&&!isNaN(e.clientHeight)){return e.clientHeight}return 0}function y(){if(window.pageYOffset){return window.pageYOffset}return Math.max(document.documentElement.scrollTop,document.body.scrollTop)}funct

Ider

# Demo: https://www.youtube.com/watch?v=4GsUf5OQAlI

# capture screen of android device
andrdroidScreenCapture() {
    curTime=`date +%Y-%m-%d-%H-%M-%S`
    tmpeName="$curTime.png"
    [[ -n $1 ]] && fileName=$1 || fileName=$tmpeName
    devicePath="/sdcard/$tmpeName"
    adb shell screencap -p $devicePath
    adb pull $devicePath $fileName