阻塞隊列Qeue在take的狀態下推出多線程循環（筆記）

使用LinkedBlockingDeque 做爲阻塞隊列的測試對象：

/**
 *
 *Description:
 *Author: Create by lixby on 17-9-20
 *
 */
public class MainActivity extends AppCompatActivity implements  Runnable, View.OnClickListener{

    private static final String TAG="lixby";
    private LinkedBlockingDeque<String> qeue=new LinkedBlockingDeque<String>();
    private boolean interrupted=false;
    private Button start,stop,exit;
    private Thread t;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        start= (Button) findViewById(R.id.button2);
        stop= (Button) findViewById(R.id.button3);
        exit= (Button) findViewById(R.id.button4);
        start.setOnClickListener(this);
        stop.setOnClickListener(this);
        exit.setOnClickListener(this);
    }


    /**往Qeue中添加數據*/
    private void addString(){
        new Thread(new Runnable() {
            @Override
            public void run() {
                String[] ss={"a","b","c","d","e","f"};
                for (int i = 0; i < 100; i++) {
                    qeue.add(""+i);
                    try {
                        Thread.sleep(300);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }

                    if(interrupted){
                        break;
                    }

                }
            }
        }).start();

    }

    @Override
    public void run() {
        while (!interrupted){
            getString();
        }
    }

    /**從Qeue中檢索數據*/
    private String getString(){
        String s="";

        try {
            s=qeue.take();
        } catch (InterruptedException e) {
            Log.i(TAG,"InterruptedException");
            interrupted=true;
            e.printStackTrace();
        }
        Log.i(TAG,"s:"+s);
        return s;
    }

    @Override
    public void onClick(View view) {
        switch(view.getId()){
          case R.id.button2:
              addString();
              break;
          case R.id.button3:
              t=new Thread(this);
              t.start();
              break;
          case R.id.button4:
              t.interrupt();
              break;
          default:
            break;
        }

    }


}

1.Demo中使用兩個線程來實現多線程隊列數據的操作。
2.數據添加線程實現數據添加每隔500ms，數據遍歷線程使用LinkedBlockingDeque的take實現數據的阻塞遍歷。
3.三個點擊事件：
(1)點擊Button1執行數據添加線程。
(2)點擊Button2執行數據遍歷線程。
(3)點擊Button3執行停止並退出數據添加線程和數據遍歷線程。

4.測試結果如下：
最後打印“s:”表示推出數據遍歷線程.