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@codeswimmer
codeswimmer / Android.Bitmap.Rotate
Created March 7, 2011 17:25
Android: rotate a bitmap
public Bitmap rotateBitmap(Bitmap original, float degrees) {
int width = original.getWidth();
int height = original.getHeight();
Matrix matrix = new Matrix();
matrix.preRotate(degrees);
Bitmap rotatedBitmap = Bitmap.createBitmap(original, 0, 0, width, height, matrix, true);
Canvas canvas = new Canvas(rotatedBitmap);
canvas.drawBitmap(original, 5.0f, 0.0f, null);
@romannurik
romannurik / DashboardLayout.java
Created March 23, 2011 05:06
A custom Android layout class that arranges children in a grid-like manner, optimizing for even horizontal and vertical whitespace.
/*
* ATTENTION:
*
* This layout is now maintained in the `iosched' code.google.com project:
*
* http://code.google.com/p/iosched/source/browse/android/src/com/google/android/apps/iosched/ui/widget/DashboardLayout.java
*
*/
/*
@ishaaq
ishaaq / MyUnitTest.java
Created May 6, 2011 04:59
Mockito doAnswer() callbacks
import org.mockito.Mockito;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import org.testng.Assert;
import org.testng.annotations.Test;
public class MyUnitTest {
int executions;
class ServiceA {
final ServiceB runner;
@paulmillr
paulmillr / active.md
Last active May 15, 2024 02:25
Most active GitHub users (by contributions). http://twitter.com/paulmillr

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 Wed, 21 Sep 2022 till Thu, 21 Sep 2023.

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 => user.followers > 1000)
@jboner
jboner / latency.txt
Last active June 2, 2024 14:49
Latency Numbers Every Programmer Should Know
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
@norsez
norsez / การใช้ Git ฉบับรีบร้อน.md
Created June 29, 2012 09:19
การใช้ Git ฉบับรีบร้อน #THiOS

#การใช้ Git ฉบับรีบร้อน

##Git Git เป็น revision control แบบ distributed (หมายความว่าไม่มีศูนย์กลาง) และ แบบ non-linear history (หมายความว่ามีประวัติการเปลี่ยนแปลงแบบไม่ใช่เส้นตรง) ดังนั้นทำให้คอนเซปต์ของ Git นั้นต่างจาก revision control รุ่นก่อนหน้าหลายอย่าง

ต่อไปจะอธิบายย่อๆเรื่องคำสั่ง Git โดยอิงกับการทำงานใน GitHub เป็นสำคัญ (Git มีวิธีใช้พลิกแพลงมากมาย ไปศีกษาการใช้อื่นได้ด้วยการไป Google เอาเอง)

##clone

สมมุติว่ามี repository แห่งนีงใน GitHub เช่น https://github.com/norsez/projectA

@dodyg
dodyg / gist:5616605
Last active November 21, 2022 03:05
Kotlin Programming Language Cheat Sheet Part 2

This is a quick guide to Kotlin programming language. The previous part of this guide is here

#Object Oriented

fun main(args : Array<String>) {
  class local (val x : Int)
  
  val y = local(10)
 println("${y.x}")
@JakeWharton
JakeWharton / OkHttpStack.java
Created May 21, 2013 01:14
A `HttpStack` implementation for Volley that uses OkHttp as its transport.
import com.android.volley.toolbox.HurlStack;
import com.squareup.okhttp.OkHttpClient;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;
/**
* An {@link com.android.volley.toolbox.HttpStack HttpStack} implementation which
* uses OkHttp as its transport.
*/
@dodyg
dodyg / gist:5823184
Last active March 29, 2024 03:59
Kotlin Programming Language Cheat Sheet Part 1

#Intro

Kotlin is a new programming language for the JVM. It produces Java bytecode, supports Android and generates JavaScript. The latest version of the language is Kotlin M5.3

Kotlin project website is at kotlin.jetbrains.org.

All the codes here can be copied and run on Kotlin online editor.

Let's get started.