Android flow-阿里云

Android 架构之 MVI 初级体 | Flow 替换 LiveData 重构数据链路(下)

lifecycleScope刚才是在lifecycleScope收集新闻流的，它是一个和生命周期对象绑定的协程域：public val LifecycleOwner.lifecycleScope: LifecycleCoroutineScope get() = lifecycle.coroutine...

Android 架构之 MVI 初级体 | Flow 替换 LiveData 重构数据链路

引子这也是《如何将业务代码越写越复杂》系列的第二篇。上一篇用实战代码演绎了 Feeds 流场景下，业务层代码如何从 “无架构” 到 “MVP” 再到 “MVVM”，并使用LiveData承载整个数据链路。这一篇尝用 Kotlin Flow 替换掉 LiveData，看看会发生些什么变化及遇到哪些问题...

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Android 基于Kotlin Flow实现一个倒计时功能

前情提要上一篇 Android Kotlin之Flow数据流中介绍了协程Flow，我们知道Flow数据流可以按顺序发送多个值，一个倒计时功能刚好符合这种场景，本文就尝试使用Flow来实现一个倒计时功能。上文中举过一个简单示例： flow { log("send hello") emit("hell...

Android Kotlin之Flow数据流

Flow介绍Flow是google官方提供的一套基于kotlin协程的响应式编程模型，它与RxJava的使用类似，但相比之下Flow使用起来更简单，另外Flow作用在协程内，可以与协程的生命周期绑定，当协程取消时，Flow也会被取消，避免了内存泄漏风险。我们知道协程是轻量级的线程，本质上协程、线程...

Android 5.1 open data flow 数据开启流程

首先我们来看看下面的关系图：底层Settings.apk 在Settings -> Data Usage Summary中的某个SIM tab下开启数据开关 android/packages/apps/Settings/src/com/android/settings/...

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