A和B两个中断事件,中断优先级分组为2,其中,A的抢占优先级为1,响应优先级为3,B的抢占优先级为1,响应优先级为0,B正在执行时,若A发生,则会怎样执行,若二者同时发生,执行的先后顺序是
时间: 2024-06-01 12:12:03 浏览: 12
As an AI language model, I can provide you an overview of the Android Kotlin EventBus, which is a library for Android developers to publish/subscribe events across various components of their application.
The Android Kotlin EventBus is an open-source library that simplifies the communication between components of an Android application, such as activities, fragments, and services. It eliminates the need for creating interfaces and implementing them for communication purposes.
The EventBus library works on the Publisher-Subscriber pattern, where a publisher publishes an event to the EventBus, and the EventBus delivers it to all the subscribers registered for that event. This makes it easier for developers to communicate between different components of their application without the need for tight coupling.
To use the Android Kotlin EventBus library, you need to add the library to your project. You can do this by adding the following code to your app-level build.gradle file:
dependencies {
implementation 'org.greenrobot:eventbus:3.2.0'
}
After adding the library to your project, you can start using it by registering subscribers and publishers. To register a subscriber, you need to annotate your method with the @Subscribe annotation and register it with the EventBus. For example:
@Subscribe(threadMode = ThreadMode.MAIN)
public fun onEvent(event: MyEvent) {
// Handle the event here
}
To publish an event, you need to create an object representing the event and pass it to the EventBus. For example:
val event = MyEvent()
EventBus.getDefault().post(event)
In conclusion, the Android Kotlin EventBus library simplifies the communication between components of an Android application, making it easier for developers to build robust and scalable applications.
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