adriantache

/**
 * Alternative to the native Result class, easier to map but less efficient.
 */
sealed class Result<T> {
    data class Success<T>(val value: T) : Result<T>()
    data class Failure<T>(val error: Error) : Result<T>()

    val isSuccess
        get() = this is Success

LongClipeus

import StringUtils.encodeHex
import java.io.File
import java.io.FileInputStream
import java.io.InputStream
import java.security.MessageDigest

object HashUtils {

    const val STREAM_BUFFER_LENGTH = 1024

JoseAlcerreca

/**
 * An [Observer] for [Event]s, simplifying the pattern of checking if the [Event]'s content has
 * already been handled.
 *
 * [onEventUnhandledContent] is *only* called if the [Event]'s contents has not been handled.
 */
class EventObserver<T>(private val onEventUnhandledContent: (T) -> Unit) : Observer<Event<T>> {
    override fun onChanged(event: Event<T>?) {
        event?.getContentIfNotHandled()?.let { value ->
            onEventUnhandledContent(value)

JoseAlcerreca

/**
 * Used as a wrapper for data that is exposed via a LiveData that represents an event.
 */
open class Event<out T>(private val content: T) {

    var hasBeenHandled = false
        private set // Allow external read but not write

    /**
     * Returns the content and prevents its use again.

codediodeio

// No Security

{
  "rules": {
    ".read": true,
    ".write": true
  }
}

felipero

while true
 # ...
				faça um comentário no cartão com link para o PR
				mova o cartão para a coluna `PR Ready`
				while ninguém revisou seu código
					notifique
				end
				while seu PR não foi aprovado
					tire_duvidas
					while você não está satisfeito com o seu trabalho

joepie91

Terminology

• View: Also called a "template", a file that contains markup (like HTML) and optionally additional instructions on how to generate snippets of HTML, such as text interpolation, loops, conditionals, includes, and so on.
• View engine: Also called a "template library" or "templater", ie. a library that implements view functionality, and potentially also a custom language for specifying it (like Pug does).
• HTML templater: A template library that's designed specifically for generating HTML. It understands document structure and thus can provide useful advanced tools like mixins, as well as more secure output escaping (since it can determine the right escaping approach from the context in which a value is used), but it also means that the templater is not useful for anything other than HTML.
• String-based templater: A template library that implements templating logic, but that has no understanding of the content it is generating - it simply concatenates together strings, potenti

adrianoluis

public class DocumentUtil {

    // CPF
    private static final int[] WEIGHT_SSN = {11, 10, 9, 8, 7, 6, 5, 4, 3, 2};

    // CNPJ
    private static final int[] WEIGHT_TFN = {6, 5, 4, 3, 2, 9, 8, 7, 6, 5, 4, 3, 2};

    private static int sum(int[] weight, char[] numbers, int length) {
        if (length <= 0) return 0;

lopspower

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