hashbrown

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

Round trip within same datacenter ...... 500,000 ns = 0.5 ms

keyboardr

import android.support.v4.app.Fragment;

public class FragmentUtils {

  /**
   * @param fragment
   *            The Fragment whose parent is to be found
   * @param parentClass
   *            The interface that the parent should implement
   * @return The parent of fragment that implements parentClass,

broady

/* Copyright 2013 Google Inc.
   Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0.html */

package com.example.latlnginterpolation;

import android.animation.ObjectAnimator;
import android.animation.TypeEvaluator;
import android.animation.ValueAnimator;
import android.annotation.TargetApi;
import android.os.Build;

FokkeZB

URL schemes for iOS and Android (2/2)

Read the blog at http://fokkezb.nl/2013/09/20/url-schemes-for-ios-and-android-2/

romannurik

<manifest ...>
    ...
    <!-- Make sure your app (or individual activity) uses the
         theme with the custom attribute defined. -->
    <application android:theme="@style/AppTheme" ...>
        ...
    </application>
</manifest>

artem-zinnatullin

public class MyApp extends Application {
  
  @Override
  public void onCreate() {
    TypefaceUtil.overrideFont(getApplicationContext(), "SERIF", "fonts/Roboto-Regular.ttf"); // font from assets: "assets/fonts/Roboto-Regular.ttf
  }
}

menny

public EdgeEffect(Context context) {
    final Resources res = context.getResources();
    mEdge = res.getDrawable(R.drawable.overscroll_edge);
    mGlow = res.getDrawable(R.drawable.overscroll_glow);

cyrilmottier

package com.cyrilmottier.android.citybikes.provider;

import android.net.Uri;
import com.cyrilmottier.android.avelov.BuildConfig;

/**
 * @author Cyril Mottier
 */
public class CityBikesContract {

Takhion

/**
 * ArcUtils.java
 * 
 * Copyright (c) 2014 BioWink GmbH.
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is

JakeWharton

import android.text.SpannableStringBuilder;
import java.util.ArrayDeque;
import java.util.Deque;

import static android.text.Spanned.SPAN_INCLUSIVE_EXCLUSIVE;

/** A {@link SpannableStringBuilder} wrapper whose API doesn't make me want to stab my eyes out. */
public class Truss {
  private final SpannableStringBuilder builder;
  private final Deque<Span> stack;