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data class DownloadItem(
    val bytesDownloadedSoFar: Long = -1,
    val totalSizeBytes: Long = -1,
    val status: Int,
    val uri: String
)

class DownloadProgressLiveData(private val activity: Activity) :
    LiveData<List<DownloadItem>>(),
    CoroutineScope {

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// REFERENCE UNICODE TABLES: 
// http://www.rikai.com/library/kanjitables/kanji_codes.unicode.shtml
// http://www.tamasoft.co.jp/en/general-info/unicode.html
//
// TEST EDITOR:
// http://www.gethifi.com/tools/regex
//
// UNICODE RANGE: DESCRIPTION
// 
// 3000-303F: punctuation

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Hexadecimal color code for transparency

How to set transparency with hex value ?

For example, you want to set 40% alpha transparence to #000000 (black color), you need to add 66 like this #66000000.

Download This sample on Google Play Store

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public static class MyExtensions
{
	public static void TimeAgo(this DateTime date)
	{
		// 1000 millisecs = 1 sec
		// 60 secs = 1 min
		// 60 mins = 1 hr
		// 24 hrs = 1 day
		var diff = DateTime.Now - date;
		var millis = diff.TotalMilliseconds;

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const byte SECURITY_CHECK_FLAG = 0b00000001;
const byte TWO_FACTOR_AUTH_FLAG = 0b00000010;
const byte JUST_A_FLAG = 0b00000100;

// Uses of Bitwise operators
void Main()
{
	// 1. Storing multiple boolean flags
	byte flags = 0;
	// Enabling flags

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// https://github.com/dotnet/roslyn/issues/7791#issuecomment-394133511
var resourceDescription = new Microsoft.CodeAnalysis.ResourceDescription(
  resourceFullName,
  () => ProcessFile(resourceFilePath),
  isPublic: true);
  
  private static MemoryStream ProcessFile(string inFile)
{
    var readers = new List<ReaderInfo>();
    var resources = ReadResources(inFile);

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using System;
using System.Threading;

public class Debouncer : IDisposable
{
    private Thread thread;
    private volatile Action action;
    private volatile int delay = 0;
    private volatile int frequency;

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void TimeAgo(DateTime date)
{
	// 1000 millisecs = 1 sec
	// 60 secs = 1 min
	// 60 mins = 1 hr
	// 24 hrs = 1 day
	var diff = DateTime.Now - date;
	var millis = diff.TotalMilliseconds;
	var millisInDay = 86400 * 1000;
	var daysInMillis = millis / millisInDay;

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var hole = new RoundHole(5);
var rPeg = new RoundPeg(5);
hole.Fits(rPeg).Dump(); // True

var sm_sqpeg = new SquarePeg(5);
var lg_sqpeg = new SquarePeg(10);
//hole.Fits(sm_sqpeg); // Error: won't compile (incompatible types)

var sm_sqpeg_adapter = new SquarePegAdapter(sm_sqpeg);
var lg_sqpeg_adapter = new SquarePegAdapter(lg_sqpeg);

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Array

• Two Sum
• Best Time to Buy and Sell Stock
• Contains Duplicate
• Product of Array Except Self
• Maximum Subarray
• Maximum Product Subarray
• Find Minimum in Rotated Sorted Array