kevalpatel2106

public class SingletonClass implements Serializable {

    private static volatile SingletonClass sSoleInstance;

    //private constructor.
    private SingletonClass(){

        //Prevent form the reflection api.
        if (sSoleInstance != null){
            throw new RuntimeException("Use getInstance() method to get the single instance of this class.");

JosiasSena

/**
  _____        _____                  _             
 |  __ \      / ____|                | |            
 | |  | | ___| |     _ __ _   _ _ __ | |_ ___  _ __ 
 | |  | |/ _ \ |    | '__| | | | '_ \| __/ _ \| '__|
 | |__| |  __/ |____| |  | |_| | |_) | || (_) | |   
 |_____/ \___|\_____|_|   \__, | .__/ \__\___/|_|   
                           __/ | |                  
                          |___/|_|                  
 */

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.

RBusarow

import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.test.TestCoroutineDispatcher
import kotlinx.coroutines.test.TestCoroutineScope
import kotlinx.coroutines.test.resetMain
import kotlinx.coroutines.test.setMain
import org.junit.jupiter.api.extension.AfterAllCallback
import org.junit.jupiter.api.extension.AfterEachCallback
import org.junit.jupiter.api.extension.BeforeAllCallback
import org.junit.jupiter.api.extension.ExtendWith
import org.junit.jupiter.api.extension.ExtensionContext

objcode

/* Copyright 2019 The Android Open Source Project
 *
 * 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
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

handstandsam

package com.handstandsam.mutablestateflow

import kotlinx.coroutines.flow.MutableStateFlow
import kotlinx.coroutines.test.runBlockingTest
import org.junit.Test

class UseImmutableDataWithMutableStateFlow {

    data class SomePojo(var name: String = "placeholder")

gmk57

/**
 * Starts collecting a flow when the lifecycle is started, and **cancels** the collection on stop.
 * This is different from `lifecycleScope.launchWhenStarted { flow.collect{...} }`, in which case
 * the coroutine is just suspended on stop.
 */
inline fun <reified T> Flow<T>.collectWhileStarted(
    lifecycleOwner: LifecycleOwner,
    noinline action: suspend (T) -> Unit
) {
    object : DefaultLifecycleObserver {

mxalbert1996

/*
 * MIT License
 *
 * Copyright (c) 2022 Albert Chang
 *
 * 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

fergusonm

class Thing(
    private val savedStateHandle: SavedStateHandle,
    private val key: String,
) {
    private val someExistingStateFlow = MutableStateFlow<String>(savedStateHandle[key] ?: "default Initial")
    private val myStateFlow = someExistingStateFlow.saveWith(savedStateHandle = savedStateHandle, key = key)
    private val myNewStateFlow = SaveableMutableStateFlow<String>(savedStateHandle = savedStateHandle, key = key)

}