# OptimusAsyncTask
基于 kotlin Channel 的优先级异步任务队列
适合于排队执行的任务实现,比如直播间动画排队播放。
# 导入
```gradle
allprojects {
repositories {
...
maven { url 'https://jitpack.io' }
}
}
dependencies {
implementation 'com.github.EspoirX:OptimusAsyncTask:v1.5'
}
```
[![](https://jitpack.io/v/EspoirX/OptimusAsyncTask.svg)](https://jitpack.io/#EspoirX/OptimusAsyncTask)
# 特点:
1. 基于 kotlin Channel 实现
2. 可设置优先级
3. 使用简单
<a href="art/WechatIMG3.jpeg"><img src="art/WechatIMG3.jpeg" width="30%"/></a>
<a href="art/WechatIMG4.jpeg"><img src="art/WechatIMG4.jpeg" width="30%"/></a>
# 介绍
OptimusAsyncTask 将每个任务抽象成 OptimusTask,OptimusTask 可以设置任务执行时间,任务优先级,获取任务状态等。
同时 OptimusAsyncTask 提供了 OptimusTask 的默认实现类 BaseOptimusTask,它实现了 Comparable 接口,任务按照优先级排序。
**优先级 TaskPriority**
优先级的标准如下:
TaskPriority.LOW < TaskPriority.DEFAULT < TaskPriority.HIGH
当优先级相同 按照插入次序排队
默认优先级是 TaskPriority.DEFAULT
**任务**
任务种类可分为 2 种,分别是 执行时间不确定 的任务和 执行时间确定 的任务。执行时间不确定的任务在任务执行完后需要调用
doNextTask() 方法执行下一个任务,否则会一直挂起。
执行时间确定的任务需要重写 getDuration() 方法返回具体的执行时间,单位是毫秒,执行时间到了会自动执行下一个任务。
# 使用方法
1. 创建执行时间不确定的任务
```kotlin
private class Task1(var textView: TextView) : OptimusTask() {
@SuppressLint("SetTextI18n")
override fun doTask() {
textView.text = "执行时间不确定的任务-> " + getSequence()
//模拟该任务耗时两秒
textView.postDelayed({
doNextTask() //执行下一个
}, 2000)
}
override fun finishTask() {
Log.i("Task1", "finishTask-> " + getSequence())
}
}
```
2. 创建执行时间确定的任务
```kotlin
private class Task2(var textView: TextView) : OptimusTask() {
@SuppressLint("SetTextI18n")
override fun doTask() {
textView.text = "执行时间确定的任务-> " + getSequence()
}
//确定该任务耗时时间
override fun getDuration(): Long {
return 2000
}
override fun finishTask() {
Log.i("Task1", "finishTask-> " + getSequence())
}
}
```
3. 通过任务管理器 OptimusTaskManager 开始执行任务
一个 OptimusTaskManager 管理着一个任务队列。
```kotlin
val taskManager1 = OptimusTaskManager()
val taskManager2 = OptimusTaskManager()
```
更多例子请查看 demo。
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温馨提示
介绍 OptimusAsyncTask 将每个任务抽象成 OptimusTask,OptimusTask 可以设置任务执行时间,任务优先级,获取任务状态等。 同时 OptimusAsyncTask 提供了 OptimusTask 的默认实现类 BaseOptimusTask,它实现了 Comparable 接口,任务按照优先级排序。 优先级 TaskPriority 优先级的标准如下: TaskPriority.LOW < TaskPriority.DEFAULT < TaskPriority.HIGH 当优先级相同 按照插入次序排队 默认优先级是 TaskPriority.DEFAULT 任务 任务种类可分为 2 种,分别是 执行时间不确定 的任务和 执行时间确定 的任务。执行时间不确定的任务在任务执行完后需要调用 doNextTask() 方法执行下一个任务,否则会一直挂起。 执行时间确定的任务需要重写 getDuration() 方法返回具体的执行时间,单位是毫秒,执行时间到了会自动执行下一个任务。
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