nelsonprsousa
/ BaseLoader.cs
Last active
January 29, 2022 18:19
Useful to avoid multiple requests to the same Task<T> (e.g. an HTTP GET operation). You probably want to registered the loader as a scoped or singleton service. Bare in mind that GetOrAdd is *not* atomic, although you can use your loader safely since it is thread-safe (usage of Lazy<Task<T>> to avoid multiple operations to resolve Task<T>).
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| public abstract class BaseLoader<T> : IBaseLoader<T> | |
| where T : class | |
| { | |
| private readonly ConcurrentDictionary<string, Lazy<Task<T?>>> cache = new(); | |
| public Task<T?> LoadAsync(string key, Func<Task<T?>> factory) | |
| { | |
| return cache.GetOrAdd(key, (_) => new Lazy<Task<T?>>(factory)).Value; | |
| } | |
| } |
brandtnewlabs
/ ScaleInOut.js
Created
February 13, 2021 14:15
Reanimated Scale In & Out Component which pops in with a spring animation if it's visible and moves out with a timing animation if not.
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| import React, { useEffect } from 'react' | |
| import Animated, { | |
| useAnimatedStyle, | |
| useSharedValue, | |
| withDelay, | |
| withSpring, | |
| withTiming | |
| } from 'react-native-reanimated' | |
| const ScaleInOut = ({ |