svsq

abstract class UseCase<Params, out Type> where Type: Any {

    // dispatchers
    private val UI = Dispatchers.Main
    private val BG = Dispatchers.IO

    // type for empty parameter
    class None

    // parameters

svsq

sealed class NetworkResponse<T>(
    val data: T? = null,
    val message: String? = null
) {
    class Success<T>(data: T) : NetworkResponse<T>(data)
    
    class Error<T>(message: String?, data: T? = null) : NetworkResponse<T>(data, message)
    
    class Loading<T> : NetworkResponse<T>()
}

svsq

abstract class Mapper<F, T> {

    abstract fun map(from: F): T
    abstract fun reverse(to: T): F

    fun map(fromList: List<F>): List<T> =
        ArrayList<T>(fromList.size).apply {
            fromList.forEach {
                add(map(it))
            }

svsq

// converts Dp to Pixels
val Number.toPixels get() = TypedValue.applyDimension(
    TypedValue.COMPLEX_UNIT_DIP,
    this.toFloat(),
    Resources.getSystem().displayMetrics)

svsq

abstract class FilterableListAdapter<T, VH : RecyclerView.ViewHolder>(
    diffCallback: DiffUtil.ItemCallback<T>
) : ListAdapter<T, VH>(diffCallback), Filterable {

    private var originalList: List<T> = currentList.toList()

    override fun getFilter(): Filter {
        return object : Filter() {
            override fun performFiltering(constraint: CharSequence?): FilterResults {
                return FilterResults().apply {

svsq

package com.edenledger.fanvestor.utils
/*
 *  Copyright 2017 Google Inc.
 *
 *  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
 *

svsq

from Tovar import *


tovari = [
    Tovar("Хлеб", 9, 20),
    Tovar("Молоко", 3, 29),
    Tovar("Чай", 6, 45),
    Tovar("Кефир", 8, 37),
    Tovar("Конфеты", 5, 120),
]