codediodeio

import * as firebase from 'firebase/app';
import 'firebase/firestore';

var firebaseConfig = {
  // your firebase credentials
};


  // Initialize Firebase
firebase.initializeApp(firebaseConfig);

karntrehan

import android.os.Bundle
import android.view.View
import android.view.ViewGroup
import androidx.core.view.ViewCompat
import androidx.core.widget.NestedScrollView
import androidx.fragment.app.Fragment
import androidx.recyclerview.widget.RecyclerView
import kotlinx.android.synthetic.main.fragment_data.nsvData
import kotlinx.android.synthetic.main.fragment_data.rvData

kakajika

extension PrimitiveSequenceType where Self: ObservableConvertibleType, Self.TraitType == SingleTrait {
    
    func flatMapCompletable(_ selector: @escaping (E) -> Completable) -> Completable {
        return self
            .asObservable()
            .flatMap { e -> Observable<Never> in
                selector(e).asObservable()
            }
            .asCompletable()
    }

jochenschoellig

import UIKit


class ChatCollectionViewFlowLayout: UICollectionViewFlowLayout {
    
    private var topMostVisibleItem    =  Int.max
    private var bottomMostVisibleItem = -Int.max
    
    private var offset: CGFloat = 0.0
    private var visibleAttributes: [UICollectionViewLayoutAttributes]?

mminer

import RxSwift
import SocketIO

extension Reactive where Base: SocketIOClient {

    public func on(_ event: String) -> Observable<[Any]> {
        return Observable.create { observer in
            let id = self.base.on(event) { items, _ in
                observer.onNext(items)
            }

webserveis

Material text sizes XML for Android

Simple helper file for standard text sizes in material design. The sizes are provided by the material design documentation https://www.google.com/design/spec/style/typography.html#typography-roboto

Standard Styles

Too many type sizes and styles at once can wreck any layout. A typographic scale is a limited set of type sizes that work well together, along with the layout grid. The basic set of styles are based on a typographic scale of 12, 14, 16, 20, and 34.

lawloretienne

Table Of Contents

• Data Structures
  • Linked Lists
  • Trees
    • Binary Trees
    • Binary Search Tree
    • Red-Black Tree
    • AVL Tree
• Tries

tehcpu

UPD (24.07.16)

Выпущено официальное приложение: https://play.google.com/store/apps/details?id=com.neuralprisma P.S. Выглядит круто, как и обещали :)

TL;DR

Приложение Prisma AI (Unofficial) (бандл: me.tehcpu.prisma) с этого дня (05.07.2016) официально является закрытым.

Почему?

Видимо, из-за расхождения взглядов и интересов обеих сторон (нас и официальных разработчиков).

statickidz

---
METHOD 1

This should roughly sort the items on distance in MySQL, and should work in SQLite.
If you need to sort them preciser, you could try using the Pythagorean theorem (a^2 + b^2 = c^2) to get the exact distance.
---
SELECT *
FROM table
ORDER BY ((lat-$user_lat)*(lat-$user_lat)) + ((lng - $user_lng)*(lng - $user_lng)) ASC

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?