android 传感器 采样频率,Android光传感器采样频率太低

传感器 采样频率,Android光传感器采样频率太低"/>

android 传感器 采样频率,Android光传感器采样频率太低

我目前正尝试制作Android演示版，以大约50Hz的采样率测试光照水平。但是，我每秒只能进行onSensorChanged次回调2-3次。我的手机是xiaomi mi5s(安装了lineage os 14.1)，Android 7.1。

public class MainActivity extends Activity implements SensorEventListener {

private SensorManager mSensorManager;

private Sensor mLight;

@Override

public final void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);

mLight = mSensorManager.getDefaultSensor(Sensor.TYPE_LIGHT);

}

@Override

public final void onAccuracyChanged(Sensor sensor, int accuracy) {

// Do something here if sensor accuracy changes.

}

@Override

public final void onSensorChanged(SensorEvent event) {

// The light sensor returns a single value.

// Many sensors return 3 values, one for each axis.

float lux = event.values[0];

Log.i("zz", lux + "");

// Do something with this sensor value.

}

@Override

protected void onResume() {

super.onResume();

mSensorManager.registerListener(this, mLight, SensorManager.SENSOR_DELAY_NORMAL);

}

@Override

protected void onPause() {

super.onPause();

mSensorManager.unregisterListener(this);

}

}