Android - 流媒体传感器数据不断？

Question

I have the following code giving me some sensor data:

private void computeOrientation() {
        if (SensorManager.getRotationMatrix(m_rotationMatrix, null, m_lastAccels, m_lastMagFields)) {
            SensorManager.getOrientation(m_rotationMatrix, m_orientation);

            /* 1 radian = 57.2957795 degrees */
            /*
             * [0] : yaw, rotation around z axis [1] : pitch, rotation around x
             * axis [2] : roll, rotation around y axis
             */
            float yaw = m_orientation[0] * 57.2957795f;
            float pitch = m_orientation[1] * 57.2957795f;
            float roll = m_orientation[2] * 57.2957795f;

            /* append returns an average of the last 10 values */
            m_lastYaw = m_filters[0].append(yaw);
            m_lastPitch = m_filters[1].append(pitch);
            m_lastRoll = m_filters[2].append(roll);

            yawText.setText("azi z: " + m_lastYaw);
            pitchText.setText("pitch x: " + m_lastPitch);
            rollText.setText("roll y: " + m_lastRoll);

                    //Now I want to send those 3 values over the network
                    //whenever they're calculated
}

This function will be invoked every few milliseconds I reckon, from onSensorChanged(SensorEvent event) .

I want to continually send/stream this data over internet network to a remote device, that will be using the data stream to calculate things in real time.

How should I do this? Through sockets? An AsyncTask? Example source code for getting started would be much appreciated =)

Answer 1

This is a job for a Service to calculate the data in background. Because no UI is necessary you can use a Thread insteed of an AsyncTask to get the sensor data.

There is more detail needed in general, but especially for the setup of the connection between your phone and the remote device. If you use a LAN, sockets in combination with a ByteArrayriter on the Phone and a ByteArrayReader on the device should do the job.