一. Scope Functions Scope Functions :The Kotlin standard library contains several functions whose sole purpose is to execute a block of code within the context of an object. When you call such a function on an object with a lambda expression provided, it forms a temporary scope. In this scop...
Kotlin作用域函数(Scope Functions) 在Kotlin 中,let、run、also、apply 和with是标准库中提供的几个非常有用的作用域函数(Scope Functions)。它们的主要作用是在对象的上下文中执行代码块,并且每个函数在返回值和使用方式上有所不同。 1. let 作用:在非空对象上执行代码块,并将对象作为参数传递到代码块中。 返回...
可以看出,withContext在suspend当前协程的时候,协程被取消了。 kotlinx.coroutines中的所有suspend函数都是可取消的(cancellable),例如withContextanddelay(上面的例子中,不使用withContext,使用delay函数也是可以实现协程的取消的)。 这是因为协程调度器 CoroutineDispatcher 在继续正常执行之前会检查协程对应的 Job 的状态,如...
Written by: baeldung Kotlin Functions 1. Overview Scope functions are very useful, and we use them frequently in Kotlin code. In this tutorial, we’ll explain what they are and also provide some examples of when to use each one. 2. also First, let’s take a look at the mutation ...
$ git clone https:///googlecodelabs/kotlin-coroutines.git 1. kotlin-coroutines仓库包含2 个工程。本文中使用的是coroutines-codelab工程,该工程包含2个module: android_studio_folder.pngstart— 使用Android架构组件的构建的简单app,将在此app基础上添加协程使用 ...
首先，您需要通过手动创建coroutine作用域的提供程序，或者使用像dagger这样的注入框架，使您的协同作用域以...
https://github.com/googlesamples/android-architecture-components/blob/master/BasicRxJavaSampleKotlin/app/src/main/java/com/example/android/observability/persistence/UsersDatabase.kt 👍 1 Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment Assignees...
androidkotlinarchitecturedataflowscopelifecycle-awarechamberskydoves UpdatedMay 17, 2021 Kotlin awes-io/repository Star170 🖖Repository Pattern in Laravel. The package allows to filter by request out-of-the-box, as well as to integrate customized criteria and any kind of filters. ...
Using it in main will ensure that the app will wait until all child jobs inside runBlocking complete. Another place where this scope fits nicely is in tests that access suspending functions. 2.3. coroutineScope For all the cases when we don’t need thread blocking, we can use coroutineScope...
Kotlin作用域函数(Scope Functions) 在Kotlin 中,let、run、also、apply 和 with 是标准库中提供的几个非常有用的作用域函数(Scope Functions)。它们的主要作用是在对象的上下文中执行代码块,并且每个函数在返回值和使用方式上有所不同。 1. let 作用:在非空对象上执行代码块,并将对象作为参数传递到代码块中。