android dev challenge compose 2 源码

倒数 :scroll: 描述 Countdown是由Jetpack Compose提供支持的简单倒数计时器应用程序。 :light_bulb: 动机与情境 使用Jetpack Compose及其底层工具(轻松的动画和状态管理)可以多么快速地开发应用程序,这给人留下了非常深刻的印象。 :camera_with_flash: 屏幕截图 执照 Copyright 2020 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