我只是试图按
列出所有传感器SensorManager mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
List<Sensor> deviceSensors = mSensorManager.getSensorList(Sensor.TYPE_ALL);
for(Sensor s : deviceSensors){
Log.i(TAG, "" + s.getName());
}
但我只得到这些传感器:
07-09 23:18:05.047 3269-3269/com.sample.soma.wapp I/MyActivity﹕ MPU6515 Acceleration Sensor
07-09 23:18:05.047 3269-3269/com.sample.soma.wapp I/MyActivity﹕ MPU6515 Gyroscope Sensor
07-09 23:18:05.057 3269-3269/com.sample.soma.wapp I/MyActivity﹕ AK8963C Magnetic field Sensor
07-09 23:18:05.057 3269-3269/com.sample.soma.wapp I/MyActivity﹕ AK8963C Magnetic Sensor UnCalibrated
07-09 23:18:05.057 3269-3269/com.sample.soma.wapp I/MyActivity﹕ SAMSUNG Step Detector Sensor
07-09 23:18:05.057 3269-3269/com.sample.soma.wapp I/MyActivity﹕ SAMSUNG Step Counter Sensor
07-09 23:18:05.057 3269-3269/com.sample.soma.wapp I/MyActivity﹕ SAMSUNG Significant Motion Sensor
07-09 23:18:05.057 3269-3269/com.sample.soma.wapp I/MyActivity﹕ SAMSUNG Game Rotation Vector
07-09 23:18:05.057 3269-3269/com.sample.soma.wapp I/MyActivity﹕ SAMSUNG Tilt Wake Sensor
07-09 23:18:05.057 3269-3269/com.sample.soma.wapp I/MyActivity﹕ MPL Rotation Vector
07-09 23:18:05.057 3269-3269/com.sample.soma.wapp I/MyActivity﹕ MPL Orientation
07-09 23:18:05.067 3269-3269/com.sample.soma.wapp I/MyActivity﹕ MPL Gravity
07-09 23:18:05.067 3269-3269/com.sample.soma.wapp I/MyActivity﹕ MPL Linear Accelration
他们如何测量心率? Android W Apps的某些部分是开源的,所以我可以查看它们吗?
谢谢和问候。
答案 0 :(得分:14)
Here是一个要点,展示如何阅读心率传感器。
它的主要内容是:
SensorManager mSensorManager = ((SensorManager)getSystemService(SENSOR_SERVICE));
Sensor mHeartRateSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_HEART_RATE);
Sensor mStepCountSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_STEP_COUNTER);
Sensor mStepDetectSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_STEP_DETECTOR);
mSensorManager.registerListener(this, mHeartRateSensor, SensorManager.SENSOR_DELAY_NORMAL);
mSensorManager.registerListener(this, mStepCountSensor, SensorManager.SENSOR_DELAY_NORMAL);
mSensorManager.registerListener(this, mStepDetectSensor, SensorManager.SENSOR_DELAY_NORMAL);
您还需要AndroidManifest.xml中的以下条目
<uses-permission android:name="android.permission.BODY_SENSORS" />
答案 1 :(得分:8)
一个小例子:(全部要点:https://gist.github.com/gabrielemariotti/d23bfe583e900a4f9276)
public class MyActivity extends Activity implements SensorEventListener {
//Sensor and SensorManager
Sensor mHeartRateSensor;
SensorManager mSensorManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.heart_layout);
//Sensor and sensor manager
mSensorManager = ((SensorManager)getSystemService(SENSOR_SERVICE));
mHeartRateSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_HEART_RATE);
//....
}
@Override
protected void onResume() {
super.onResume();
//Register the listener
if (mSensorManager != null){
mSensorManager.registerListener(this, mHeartRateSensor, SensorManager.SENSOR_DELAY_NORMAL);
}
}
@Override
protected void onPause() {
super.onPause();
//Unregister the listener
if (mSensorManager!=null)
mSensorManager.unregisterListener(this);
}
@Override
public void onSensorChanged(SensorEvent event) {
//Update your data.
if (event.sensor.getType() == Sensor.TYPE_HEART_RATE) {
//heart rate = (int) event.values[0];
}
}
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
}
添加您的清单
<uses-permission android:name="android.permission.BODY_SENSORS" />
答案 2 :(得分:5)
有一篇博客文章与源代码讨论了这个问题:http://marctan.com/blog/2014/07/08/reading-heart-rate-data-from-samsung-gear-live/
博客文章中要注意的要点:
您还需要AndroidManifest.xml
<uses-permission android:name="android.permission.BODY_SENSORS" />