• 生产者消费者模型 android


    一.简单的思路为:生产者+消费者模式来实现

    1.重写这个对象的触摸事件(对触摸事件与事件分发机制的同学不了解的可以查阅其他资料)

    2.在MotionEvent.ACTION_DOWN:事件中启动一个线程,这个线程类似生产者,它不停的生产想要的事件

    这里的事件为了调用的顺序,建议采用队列的方式来缓存,事件对象可任意

    3.在MptionEvent.ACTION_UP:事件中取消这个线程,取消线程即停止这个线程,采用置中断标记来停止一个线程

    5.从任务队列中取出任务进行执行,类似消费者,代码模式与生产者很类似,具体的思路可参看我的前几编文章,里面有很详细的生产者消费者模式多线程的运用

    二.任务请求对象:

    package com.example.baize.touchdelegate.producer;
    
    import java.util.LinkedList;
    
    /**
     * 事件对象
    * <p>
    * Created by lxb on 2017/3/31.
     */
    public class EventRequest<T> {
    
        private LinkedList<T> requestQueue = new LinkedList<>();
        private int count;    // 任务队列请求数
    
        public EventRequest() {
            this.count = 0;
        }
    
        public synchronized void buildEvent(T request) throws InterruptedException {
    
            while (!requestQueue.isEmpty() && count >= requestQueue.size()) {
                wait();
            }
            System.out.println(Thread.currentThread().getName() + "正在产生" + request + "到请求队列中");
            requestQueue.addLast(request);
            count++;
            notifyAll();
        }
    
        public synchronized T sendEvent() throws InterruptedException {
            while (count <= 0) {
                wait();
            }
            T request = requestQueue.pop();
            count--;
            notifyAll();
            System.out.println(Thread.currentThread().getName() + "已经成功从请求队列中拿到" + request);
            return request;
        }
    }
    

    三.生产者线程:

    package com.example.baize.touchdelegate.producer;
    
    /**
     * 生产游戏手柄的按键事件,本线程通过打断与启动标志来停止线程
    * <p>
    * Created by lxb on 2017/3/31.
     */
    public class ProduceEventThread<T> extends Thread {
    
        private EventRequest<T> eventRequest;
    
        private volatile boolean terminated = false; // 停止请求标志
    
        private T type;       //事件请求类型
    
        public ProduceEventThread(T type, EventRequest<T> eventRequest) {
    
            this.eventRequest = eventRequest;
            this.type = type;
        }
    
        public void run() {
            while (!terminated) {
    
                try {
                    this.eventRequest.buildEvent(type);
    
                } catch (InterruptedException e) {
                    terminated = true;
                }
    
            }
        }
    
        public void cancel(){
            terminated = true;
            interrupt();
        }
    
    }
    

    四.消费者线程:

    package com.example.baize.touchdelegate.producer;
    
    /**
     * 发送游戏手柄事件的线程,类似消费者
    *
     * Created by lxb on 2017/3/31.
     */
    public class SendEventThread<T> extends Thread {
    
    
        private EventRequest<T> eventRequest;
    
        private volatile boolean terminated = false; // 停止请求标志
    
        private T type;       //事件请求类型
    
        public SendEventThread(T type, EventRequest<T> eventRequest) {
    
            this.eventRequest = eventRequest;
            this.type = type;
        }
    
        public void run() {
            while (!terminated) {
    
                try {
                    this.eventRequest.sendEvent();
                } catch (InterruptedException e) {
                    terminated = true;
                }
    
            }
        }
    
        public void cancel(){
            terminated = true;
            interrupt();
        }
    }
    

    五。整个触摸对象的触摸事件代理类:

    package com.example.baize.touchdelegate;
    
    import android.view.MotionEvent;
    import android.view.View;
    
    import com.example.baize.touchdelegate.producer.EventRequest;
    import com.example.baize.touchdelegate.producer.ProduceEventThread;
    import com.example.baize.touchdelegate.producer.SendEventThread;
    
    /**
     * 游戏手柄按键不停的产生事件,由此类进行代理并采用生产者消费者模式实现
    * <p>
    * Created by lxb on 2017/3/31.
     */
    public class TouchEventDelegate<T> implements View.OnTouchListener {
    
        private T type ;
    
        private ProduceEventThread<T> produceEventThread;
    
        private SendEventThread<T> sendEventThread;
    
        private EventRequest<T> eventRequest;
    
    
        public TouchEventDelegate(T type) {
            this.type = type;
            eventRequest = new EventRequest<>();
    
        }
    
    
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            switch (event.getAction()) {
    
                case MotionEvent.ACTION_DOWN:
    
                    startThreads();
    
                    break;
    
                case MotionEvent.ACTION_MOVE:
    
                    break;
    
                case MotionEvent.ACTION_UP:
    
                    stopAllThreads();
    
                    break;
    
            }
    
            return true;
        }
    
        private void startThreads() {
            produceEventThread = new ProduceEventThread<>(type, eventRequest);
            sendEventThread = new SendEventThread<>(type, eventRequest);
            produceEventThread.start();
            sendEventThread.start();
        }
    
        private void stopAllThreads() {
            if (produceEventThread != null) {
                produceEventThread.cancel();
                produceEventThread = null;
            }
    
            if (sendEventThread != null) {
                sendEventThread.cancel();
                sendEventThread = null;
            }
    
        }
    }
    

    调用方式:

    package com.example.baize.activity;
    
    import android.content.res.Configuration;
    import android.os.Bundle;
    import android.view.MotionEvent;
    import android.view.TouchDelegate;
    import android.view.View;
    import android.widget.ImageView;
    import android.widget.Toast;
    
    import com.example.baize.R;
    import com.example.baize.touchdelegate.TouchEventDelegate;
    import com.example.baize.utils.VibrateUtils;
    
    /**
     * 游戏手柄
    * Created by lxb on 2017/3/31.
     */
    public class GameCtrlActivity extends BaseActivity{
    
        private ImageView mBack;
        private ImageView mLeft;
        private ImageView mRight;
        private ImageView mUp;
        private ImageView mDown;
    
        private ImageView mFun1;
        private ImageView mFun2;
        private ImageView mFun3;
        private ImageView mFun4;
        private ImageView mFun5;
    
        private ImageView mX;
        private ImageView mY;
        private ImageView mA;
        private ImageView mB;
    
        private static final Integer leftTouch = 101;
        private static final Integer upTouch = 102;
        private static final Integer rightTouch = 103;
        private static final Integer downTouch = 104;
        private static final String xTouch = "X";
        private static final String yTouch = "Y";
        private static final String aTouch = "A";
        private static final String bTouch = "B";
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_game_ctrl);
            initView();
        }
    
        @Override
        protected void setStatusBar() {
        }
    
    
        private void initView(){
            EventClick click = new EventClick();
    
            mBack = getView(R.id.gc_back);
            mLeft = getView(R.id.gc_left);
            mRight = getView(R.id.gc_right);
            mUp = getView(R.id.gc_up);
            mDown = getView(R.id.gc_down);
    
            mFun1 = getView(R.id.gc_fun1);
            mFun2 = getView(R.id.gc_fun2);
            mFun3 = getView(R.id.gc_fun3);
            mFun4 = getView(R.id.gc_fun4);
            mFun5 = getView(R.id.gc_fun5);
    
            mX = getView(R.id.gc_x);
            mY = getView(R.id.gc_y);
            mA = getView(R.id.gc_a);
            mB = getView(R.id.gc_b);
    
    
            mBack.setOnClickListener(click);
    
            /*mLeft.setOnClickListener(click);
            mRight.setOnClickListener(click);
            mUp.setOnClickListener(click);
            mDown.setOnClickListener(click);*/
    
            mFun1.setOnClickListener(click);
            mFun2.setOnClickListener(click);
            mFun3.setOnClickListener(click);
            mFun4.setOnClickListener(click);
            mFun5.setOnClickListener(click);
    
           /* mX.setOnClickListener(click);
            mY.setOnClickListener(click);
            mA.setOnClickListener(click);
            mB.setOnClickListener(click);*/
    
            mLeft.setOnTouchListener(new TouchEventDelegate<>(leftTouch));
            mUp.setOnTouchListener(new TouchEventDelegate<>(upTouch));
            mRight.setOnTouchListener(new TouchEventDelegate<>(rightTouch));
            mDown.setOnTouchListener(new TouchEventDelegate<>(downTouch));
    
            mX.setOnTouchListener(new TouchEventDelegate<>(xTouch));
            mY.setOnTouchListener(new TouchEventDelegate<>(yTouch));
            mA.setOnTouchListener(new TouchEventDelegate<>(aTouch));
            mB.setOnTouchListener(new TouchEventDelegate<>(bTouch));
    
    
    
    
        }
    
        private class EventClick implements View.OnClickListener{
            @Override
            public void onClick(View v) {
    
                VibrateUtils.vSimple(GameCtrlActivity.this, 100);
    
                switch(v.getId()){
    
                    case R.id.gc_back:
                        GameCtrlActivity.this.finish();
                        break;
    
                    case R.id.gc_fun1:
                    case R.id.gc_fun2:
                    case R.id.gc_fun3:
                    case R.id.gc_fun4:
                    case R.id.gc_fun5:
                        Toast.makeText(GameCtrlActivity.this,"未定义",Toast.LENGTH_SHORT).show();
                        break;
    
                }
            }
        }
    
    
    
    }
    

    测试结果:

    04-01 09:11:16.727 20460-21434/com.example.baize I/System.out: Thread-6183已经成功从请求队列中拿到X
    04-01 09:11:16.727 20460-21433/com.example.baize I/System.out: Thread-6182正在产生X到请求队列中
    04-01 09:11:16.728 20460-21434/com.example.baize I/System.out: Thread-6183已经成功从请求队列中拿到X
    04-01 09:11:16.728 20460-21433/com.example.baize I/System.out: Thread-6182正在产生X到请求队列中
    04-01 09:11:16.728 20460-21434/com.example.baize I/System.out: Thread-6183已经成功从请求队列中拿到X
    04-01 09:11:16.728 20460-21433/com.example.baize I/System.out: Thread-6182正在产生X到请求队列中
    04-01 09:11:16.728 20460-21434/com.example.baize I/System.out: Thread-6183已经成功从请求队列中拿到X
    04-01 09:11:16.728 20460-21433/com.example.baize I/System.out: Thread-6182正在产生X到请求队列中
    04-01 09:11:16.729 20460-21434/com.example.baize I/System.out: Thread-6183已经成功从请求队列中拿到X
    04-01 09:11:16.729 20460-21433/com.example.baize I/System.out: Thread-6182正在产生X到请求队列中
    04-01 09:11:16.729 20460-21434/com.example.baize I/System.out: Thread-6183已经成功从请求队列中拿到X
    04-01 09:11:16.729 20460-21433/com.example.baize I/System.out: Thread-6182正在产生X到请求队列中
    04-01 09:11:16.729 20460-21434/com.example.baize I/System.out: Thread-6183已经成功从请求队列中拿到X
    04-01 09:11:16.729 20460-21433/com.example.baize I/System.out: Thread-6182正在产生X到请求队列中
    04-01 09:11:16.729 20460-21434/com.example.baize I/System.out: Thread-6183已经成功从请求队列中拿到X
    04-01 09:11:16.730 20460-21433/com.example.baize I/System.out: Thread-6182正在产生X到请求队列中
    04-01 09:11:16.730 20460-21434/com.example.baize I/System.out: Thread-6183已经成功从请求队列中拿到X
    04-01 09:11:16.730 20460-21433/com.example.baize I/System.out: Thread-6182正在产生X到请求队列中
    04-01 09:11:16.730 20460-21434/com.example.baize I/System.out: Thread-6183已经成功从请求队列中拿到X
    04-01 09:11:16.730 20460-21433/com.example.baize I/System.out: Thread-6182正在产生X到请求队列中
    04-01 09:11:16.730 20460-21434/com.example.baize I/System.out: Thread-6183已经成功从请求队列中拿到X
    04-01 09:11:16.730 20460-21433/com.example.baize I/System.out: Thread-6182正在产生X到请求队列中
    04-01 09:11:16.731 20460-21434/com.example.baize I/System.out: Thread-6183已经成功从请求队列中拿到X
    04-01 09:11:16.731 20460-21433/com.example.baize I/System.out: Thread-6182正在产生X到请求队列中
    04-01 09:11:16.731 20460-21434/com.example.baize I/System.out: Thread-6183已经成功从请求队列中拿到X
    04-01 09:11:16.731 20460-21433/com.example.baize I/System.out: Thread-6182正在产生X到请求队列中
    04-01 09:11:16.731 20460-21434/com.example.baize I/System.out: Thread-6183已经成功从请求队列中拿到X
    04-01 09:11:16.731 20460-21433/com.example.baize I/System.out: Thread-6182正在产生X到请求队列中
    04-01 09:11:16.731 20460-21434/com.example.baize I/System.out: Thread-6183已经成功从请求队列中拿到X
    04-01 09:11:16.732 20460-21433/com.example.baize I/System.out: Thread-6182正在产生X到请求队列中
    04-01 09:11:16.732 20460-21434/com.example.baize I/System.out: Thread-6183已经成功从请求队列中拿到X
    04-01 09:11:16.732 20460-21433/com.example.baize I/System.out: Thread-6182正在产生X到请求队列中
    04-01 09:11:16.732 20460-21434/com.example.baize I/System.out: Thread-6183已经成功从请求队列中拿到X
    04-01 09:11:16.732 20460-21433/com.example.baize I/System.out: Thread-6182正在产生X到请求队列中
    04-01 09:11:16.733 20460-21434/com.example.baize I/System.out: Thread-6183已经成功从请求队列中拿到X
    04-01 09:11:16.733 20460-21433/com.example.baize I/System.out: Thread-6182正在产生X到请求队列中
    04-01 09:11:16.733 20460-21434/com.example.baize I/System.out: Thread-6183已经成功从请求队列中拿到X
    04-01 09:11:16.740 20460-21433/com.example.baize I/System.out: Thread-6182正在产生X到请求队列中

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  • 原文地址:https://www.cnblogs.com/Awangzhen/p/8922183.html
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