Android的Xoom的accelererometer准确性永远是靠不住 [英] Android Xoom accelererometer accuracy is always unreliable

问题描述

我正在为Android一个简单的指南针类型的应用程序，在测试Xoom的无线网络。加速度计读数的准确性总是 SensorManager.SENSOR_STATUS_UNRELIABLE 。磁场读数总是精度 SensorManager.SENSOR_STATUS_ACCURACY_HIGH 。难道这是在Xoom的一个bug，还是有一个问题在我的code？

 的onCreate：
mSensorManager =（的SensorManager）getSystemService（Context.SENSOR_SERVICE）;
accelGravitySensor = mSensorManager.getDefaultSensor（Sensor.TYPE_ACCELEROMETER）;
magSensor = mSensorManager.getDefaultSensor（Sensor.TYPE_MAGNETIC_FIELD）;onResume：
mSensorManager.registerListener（accelListener，accelGravitySensor，SensorManager.SENSOR_DELAY_NORMAL）;
mSensorManager.registerListener（magListener，magSensor，SensorManager.SENSOR_DELAY_NORMAL）;私人最终SensorEventListener accelListener =新SensorEventListener（）{
  公共无效onSensorChanged（SensorEvent事件）{
    Log.d（TAG，加（+ event.values​​ [0] +，+ event.values​​ [1] +，+ event.values​​ [2] +）的精度=+ accuracyTag（事件。准确性））;
  }
  公共无效onAccuracyChanged（传感器传感器，精度INT）{}
};
 

解决方案

它看起来像在XOOM的bug。检查这些帖子：

<一个href=\"http://community.developer.motorola.com/t5/Android-App-Development-for/Xoom-magnetometer-Y-axis-always-reads-zero/td-p/14184\" rel=\"nofollow\">http://community.developer.motorola.com/t5/Android-App-Development-for/Xoom-magnetometer-Y-axis-always-reads-zero/td-p/14184

<一个href=\"http://community.developer.motorola.com/t5/Android-App-Development-for/Q-Compass-Behavior-when-Xoom-is-held-in-different-orientations/td-p/14332\" rel=\"nofollow\">http://community.developer.motorola.com/t5/Android-App-Development-for/Q-Compass-Behavior-when-Xoom-is-held-in-different-orientations/td-p/14332

I'm working on a simple compass type application for Android, testing on Xoom WiFi. The accuracy of the accelerometer readings is always SensorManager.SENSOR_STATUS_UNRELIABLE. The magnetic field readings are always accuracy SensorManager.SENSOR_STATUS_ACCURACY_HIGH. Could this be a bug in the Xoom, or is there a problem in my code?

onCreate:
mSensorManager = (SensorManager)getSystemService(Context.SENSOR_SERVICE);
accelGravitySensor = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
magSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD);

onResume:
mSensorManager.registerListener(accelListener, accelGravitySensor, SensorManager.SENSOR_DELAY_NORMAL);
mSensorManager.registerListener(magListener, magSensor, SensorManager.SENSOR_DELAY_NORMAL);

private final SensorEventListener accelListener = new SensorEventListener() {
  public void onSensorChanged(SensorEvent event) {
    Log.d(TAG, "accel (" + event.values[0] + ", " + event.values[1] + ", " + event.values[2] + ") accuracy=" + accuracyTag(event.accuracy));
  }
  public void onAccuracyChanged(Sensor sensor, int accuracy) {}
};

解决方案

It looks like a bug in the xoom. Check these posts:

http://community.developer.motorola.com/t5/Android-App-Development-for/Xoom-magnetometer-Y-axis-always-reads-zero/td-p/14184

http://community.developer.motorola.com/t5/Android-App-Development-for/Q-Compass-Behavior-when-Xoom-is-held-in-different-orientations/td-p/14332

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