Question

所以我尝试在Android应用程序中进行服务，这是我在Android上的第一个应用程序（也在Java上），所以我有很多问题。但主要问题是＆＃34;架构＆＃34;我的后台服务。

我需要通过蓝牙设备连接设备（我的自定义设备）。我有自己的协议（仍在进行中），因此我需要在后台服务中执行以下操作：

发送了一些内容
总是听InputStream！（所有时间）

我如何在服务中创建这些内容？我需要在我的服务中创建两个线程吗？

我尝试过很多＆＃34;想法＆＃34;至于如何？而且我非常庞大＆＃34;脏＆＃34;代码......每次运行它都会崩溃。

public class MyService extends Service {

public BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
public BluetoothSocket socket;
public String readMessage;
public int BTC_STATE;
ExecutorService es;


public void onCreate() {
    super.onCreate();
    es = Executors.newFixedThreadPool(2);
}


}

 public void onDestroy() {
    super.onDestroy();

}
// ЗАПУСК СЕРВИСА
public int onStartCommand(Intent intent, int flags, int startId) {
    int time = intent.getIntExtra(DashboardActivity.PARAM_TIME, 1);
    int task = intent.getIntExtra(DashboardActivity.PARAM_TASK, 0);
    String strMAC = intent.getStringExtra(DashboardActivity.PARAM_MAC);
    String strMESS = intent.getStringExtra(DashboardActivity.PARAM_MESSAGE);
    MyRun mr = new MyRun(startId, time, task,strMAC,strMESS);
    es.execute(mr);

    return super.onStartCommand(intent, flags, startId);
}

public IBinder onBind(Intent arg0) {
    return null;
}

class MyRun implements Runnable {

    int time;
    int startId;
    int task;
    int target;
    String strMAC;
    String strMESS;

    public MyRun(int startId, int time, int task,String strMAC,String strMESS) {
        this.time = time;
        this.startId = startId;
        this.task = task;
        this.target = 1;
        this.strMAC = strMAC;
        this.strMESS = strMESS;

    }

    public void run() {
        Intent intent = new Intent(DashboardActivity.BROADCAST_ACTION);
//here, depending on task id i sent reqwest. But where i need to create listning method?


}

在run（）中我有不同的任务......但是我需要为我的BTE套接字InPutStream创建列表方法？

Answer 1

所以我没有3项服务任务： 1）连接 2）开始监听我的BTE连接的inputStream 3）发送数据

 try {
                        InputStream is = socket.getInputStream();


                        byte[] buffer = new byte[1];
                        int bytes;
                        //StringBuilder readMessage = new StringBuilder();
                        String readMess2;
                        while (1!=2) {
                            try {

                                bytes = is.read(buffer);
                                String readed = new String(buffer, 0, bytes);

                                //readMessage.append(readed);
                                readMess2=readed;

                                intent.putExtra(DashboardActivity.PARAM_STATUS, DashboardActivity.STATUS_FINISH);
                                intent.putExtra(DashboardActivity.PARAM_RESULT, "Listning: " + readMess2);
                                sendBroadcast(intent);

                            } catch (IOException e) {

                                BTC_STATE='0';
                                intent.putExtra(DashboardActivity.PARAM_STATUS, DashboardActivity.STATUS_FINISH);
                                intent.putExtra(DashboardActivity.PARAM_RESULT, "Ошибка уха!");
                                sendBroadcast(intent);
                                serviceNotifer("ADPTTO Service", "УХО ОШИБКА " + BTC_STATE);
                                break;
                            }
                        }


                        intent.putExtra(DashboardActivity.PARAM_STATUS, DashboardActivity.STATUS_FINISH);
                        intent.putExtra(DashboardActivity.PARAM_RESULT, "STOP УХО WHILE =)");
                        sendBroadcast(intent);
                        serviceNotifer("ADPTTO Service", "УХО WHILE OUT " + BTC_STATE);


                    } catch (IOException e) {
                        BTC_STATE='0';
                        intent.putExtra(DashboardActivity.PARAM_STATUS, DashboardActivity.STATUS_FINISH);
                        intent.putExtra(DashboardActivity.PARAM_RESULT, "GET ERROR");
                        sendBroadcast(intent);
                        serviceNotifer("ADPTTO Service", "УХО ОШИБКА 2 + " + BTC_STATE);
                    }

此代码正在运行..但只是一段时间（1-2分钟）。谁能一直听？

如何在android后台服务中从蓝牙套接字中收听？

1 个答案: