Java SensorManager.getSensors示例

  @SuppressWarnings("deprecation")
  public void testLegacySensorOperations() {
    final SensorManager mSensorManager =
        (SensorManager) getContext().getSystemService(Context.SENSOR_SERVICE);

    // We expect the set of sensors reported by the new and legacy APIs to be consistent.
    int sensors = 0;
    if (mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER) != null) {
      sensors |= SensorManager.SENSOR_ACCELEROMETER;
    }
    if (mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD) != null) {
      sensors |= SensorManager.SENSOR_MAGNETIC_FIELD;
    }
    if (mSensorManager.getDefaultSensor(Sensor.TYPE_ORIENTATION) != null) {
      sensors |= SensorManager.SENSOR_ORIENTATION | SensorManager.SENSOR_ORIENTATION_RAW;
    }
    assertEquals(sensors, mSensorManager.getSensors());
  }