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Dispatch queue is an ultra-high performance queue extending Android message queue. Similar to the coroutine, it supports synchronous return and asynchronous execution. It can wrap the main thread and schedule flexibly

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Justson/dispatch-queue

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拓展了Android OS MessageQueue

Dispatch Queue是一个扩展Android MessageQueue的超高性能队列,类似协程支持同步返回,同时也支持异步执行,可包装主线程,灵活调度

引入

  • Gradle
implementation 'com.github.Justson:dispatch-queue:v1.0.5'

特性

  • 线程可以配对交换元素在同步点
  • 线程空闲后执行task
  • 阻塞执行
  • 线程之间交叉执行

控制线程执行顺序

        final StringBuffer output = new StringBuffer();
        AsyncTask.execute(() -> {
            output.append(1).append(", ");
            GlobalQueue.getMainQueue().postRunnableBlocking(() -> {
                // do you work , in the main-Thread
                output.append(2).append(", ");

            });
            output.append(3).append(", ");

            // invoke in the main-Thread and return a string data
            String message = GlobalQueue.getMainQueue().call(() -> {
                output.append(4).append(", ");
                return "hello world";
            });
            output.append(5).append(" data ").append(message);
            System.out.println(output.toString());
            // output  the order "1 2 3 4 5"
        });
 output the order :1, 2, 3, 4, 5 

创建 DispatchThread

        DispatchThread messageDispatch = DispatchThread.create("message");

        messageDispatch.postRunnable(() -> {
            // do you work , work in message thread
        });

        System.out.println("1");
        messageDispatch.postRunnableScissors(() -> {
            System.out.println("2");
        });
        System.out.println("3");
        // output 1 2 3

        // from message thread get a number, it will blocking until working finish.
        int i = messageDispatch.call(() -> 1);

线程空闲执行

        messageDispatch.postRunnableInIdleRunning(() -> {
            // do your work , when the message thread idle will callback this runable
        });

About

Dispatch queue is an ultra-high performance queue extending Android message queue. Similar to the coroutine, it supports synchronous return and asynchronous execution. It can wrap the main thread and schedule flexibly

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