frankiesardo

public class CustomMatchers {
    public static Matcher<View> withBackground(final int resourceId) {
        return new TypeSafeMatcher<View>() {

            @Override
            public boolean matchesSafely(View view) {
                return sameBitmap(view.getContext(), view.getBackground(), resourceId);
            }

            @Override

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:

raphaelbussa

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2016 Raphaël Bussa
 *
 * 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

rondy

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

---

Effective Engineer - Notes

• By Edmond Lau
• Highly Recommended 👍
• http://www.theeffectiveengineer.com/

What's an Effective Engineer?

enshahar

data class SubData(var x:Int, var y:String)
data class Data(val d:SubData, val i:Int)

val x = Data(SubData(10, "shared data"), 10)
val z = x.copy()
println("x.d.x = ${x.d.x}, x.d.y = ${x.d.y}")
println("z.d.x = ${z.d.x}, z.d.y = ${z.d.y}")

x.d.x = 100
println("after chaning x.d.x to 100")

hardik-trivedi

import android.annotation.SuppressLint
import android.content.Context
import android.content.SharedPreferences
import com.hardiktrivedi.gdg_pune_kotlin_workshop.R
import kotlin.reflect.KProperty

class PreferenceExtension<T>(val context: Context, val key: String, val defaultValue: T) {
    val prefs: SharedPreferences by lazy { context.getSharedPreferences(context.getString(R.string.app_name), Context.MODE_PRIVATE) }

    operator fun getValue(thisRef: Any?, property: KProperty<*>): T {

elizarov

import kotlinx.coroutines.experimental.DefaultDispatcher
import kotlinx.coroutines.experimental.channels.ReceiveChannel
import kotlinx.coroutines.experimental.channels.consumeEach
import kotlinx.coroutines.experimental.channels.produce
import kotlinx.coroutines.experimental.delay
import kotlinx.coroutines.experimental.runBlocking
import kotlin.coroutines.experimental.CoroutineContext

fun <T> ReceiveChannel<T>.debounce(
    wait: Long = 300,

ArthurNagy

package com.your.package

import android.app.Dialog
import android.os.Bundle
import com.your.package.R
import com.google.android.material.bottomsheet.BottomSheetDialog
import com.google.android.material.bottomsheet.BottomSheetDialogFragment

/**
 * BottomSheetDialog fragment that uses a custom