staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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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.

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Effective Engineer - Notes

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

What's an Effective Engineer?

JonathanLalou

Android Emulator usage: emulator [options] [-qemu args]
  options:
    -sysdir <dir>                  search for system disk images in <dir>
    -system <file>                 read initial system image from <file>
    -datadir <dir>                 write user data into <dir>
    -kernel <file>                 use specific emulated kernel
    -ramdisk <file>                ramdisk image (default <system>/ramdisk.img
    -image <file>                  obsolete, use -system <file> instead
    -initdata <file>               same as '-init-data <file>'
    -data <file>                   data image (default <datadir>/userdata-qemu.img

gabrielemariotti

You can use this class to realize a simple sectioned RecyclerView.Adapter without changing your code.

The RecyclerView should use a LinearLayoutManager. You can use this code also with the TwoWayView with the ListLayoutManager (https://github.com/lucasr/twoway-view)

This is a porting of the class SimpleSectionedListAdapter provided by Google

Example:

JonDouglas

Xamarin.Android Performance Issues

1. Investigation

One of the best ways to investigate a problematic Xamarin.Android Errors is to first ensure you have the proper tooling available:

• Diagnostic MSBuild Output Enabled(Instructions)
• Android SDK Installed
• Android API Level Documentation

jmoody

Tmate is a remote tmux session over ssh.

Intall with Homebrew

$ brew update && brew upgrade
$ brew install tmux
$ brew install reattach-to-user-namespace
$ brew install tmate

jkubecki

// The following data should be run in the console while viewing the page https://read.amazon.com/
// It will export a CSV file called "download" which can (and should) be renamed with a .csv extension

var db = openDatabase('K4W', '3', 'thedatabase', 1024 * 1024);

getAmazonCsv = function() {
  // Set header for CSV export line - change this if you change the fields used
  var csvData = "ASIN,Title,Authors,PurchaseDate\n";

  db.transaction(function(tx) {

jaredpar

using System.Reflection.Metadata;
using System.Reflection.PortableExecutable;

Console.WriteLine(IsNullableEnabledAtBuild(@"C:\Users\jaredpar\temp\console\bin\Debug\net7.0\console.dll", out var reason));
Console.WriteLine(reason);

static bool IsNullableEnabledAtBuild(string assemblyFilePath, out string? reason)
{
    MetadataReaderProvider? pdbReaderProvider = null;
    try

nickbutcher

/*
 * Copyright 2017 Google Inc. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software

brendanzagaeski

<metadata>
	<!-- Some Metadata.xml fixes for binding the Socialize Android SDK (http://getsocialize.com/sdk/) in Xamarin.Android
	     Note that this is not a complete set of fixes. These changes only address the first round of compile errors. -->

	<!-- Fixes for duplicate EventArgs, as discussed on:
	     http://docs.xamarin.com/guides/android/advanced_topics/java_integration_overview/binding_a_java_library_(.jar)/#Problem_Duplicate_custom_EventArgs_types
	     Error message: Error CS0102: The type `SomeClass` already contains a definition for `p0' (CS0102) -->
	<attr path="/api/package[@name='com.socialize.auth.twitter']/interface[@name='TwitterAuthListener']/method[@name='onError' and count(parameter)=1 and parameter[1][@type='com.socialize.error.SocializeException']]" name="argsType">AuthTwitterErrorEventArgs</attr>
	<attr path="/api/package[@name='com.socialize.facebook']/interface[@name='Facebook.DialogListener']/method[@name='onComplete' and count(parameter)=1 and parameter[1][@type='android.os.Bundle