/**
* 用于监视陀螺仪的数据
*/
public class GyroActivity extends Activity implements SensorEventListener {
private static final String TAG = "rustApp";
// UI ......
private SensorManager mSensorManager;
private Sensor mGyroSensor;
private Sensor mAccSensor;
private Sensor mMagSensor;
// 加速度传感器数据
float mAccValues[] = new float[3];
// 地磁传感器数据
float mMagValues[] = new float[3];
// 旋转矩阵，用来保存磁场和加速度的数据
float mRMatrix[] = new float[9];
// 存储方向传感器的数据（原始数据为弧度）
float mPhoneAngleValues[] = new float[3];
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.act_gyro);
initUtils();
initPhoneSensors();
}
@Override
protected void onDestroy() {
super.onDestroy();
EventBus.getDefault().unregister(this);
mSensorManager.unregisterListener(this, mGyroSensor);
mSensorManager.unregisterListener(this, mAccSensor);
mSensorManager.unregisterListener(this, mMagSensor);
}
@Override
public void onSensorChanged(SensorEvent event) {
switch (event.sensor.getType()) {
case Sensor.TYPE_ACCELEROMETER:
mAccXTv.setText(String.format(Locale.CHINA, "acc x : %f", event.values[0]));
mAccYTv.setText(String.format(Locale.CHINA, "acc y : %f", event.values[1]));
mAccZTv.setText(String.format(Locale.CHINA, "acc z : %f", event.values[2]));
System.arraycopy(event.values, 0, mAccValues, 0, mAccValues.length);// 获取数据
break;
case Sensor.TYPE_GYROSCOPE:
mPhoneGyroXTv.setText(String.format(Locale.CHINA, "PhoneGyro x : %f", event.values[0]));
mPhoneGyroYTv.setText(String.format(Locale.CHINA, "PhoneGyro y : %f", event.values[1]));
mPhoneGyroZTv.setText(String.format(Locale.CHINA, "PhoneGyro z : %f", event.values[2]));
break;
case Sensor.TYPE_MAGNETIC_FIELD:
System.arraycopy(event.values, 0, mMagValues, 0, mMagValues.length);// 获取数据
break;
}
SensorManager.getRotationMatrix(mRMatrix, null, mAccValues, mMagValues);
SensorManager.getOrientation(mRMatrix, mPhoneAngleValues);// 此时获取到了手机的角度信息
mPhoneAzTv.setText(String.format(Locale.CHINA, "Azimuth(地平经度): %f", Math.toDegrees(mPhoneAngleValues[0])));
mPhonePitchTv.setText(String.format(Locale.CHINA, "Pitch: %f", Math.toDegrees(mPhoneAngleValues[1])));
mPhoneRollTv.setText(String.format(Locale.CHINA, "Roll: %f", Math.toDegrees(mPhoneAngleValues[2])));
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
private void initUtils() {
ButterKnife.bind(this);
}
private void initPhoneSensors() {
mSensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
List<Sensor> sensorList = mSensorManager.getSensorList(Sensor.TYPE_ALL);
for (Sensor sensor : sensorList) {
Log.d(TAG, String.format(Locale.CHINA, "[Sensor] name: %s \tvendor:%s",
sensor.getName(), sensor.getVendor()));
}
// 获取传感器
mGyroSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_GYROSCOPE);
mAccSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
mMagSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD);
mSensorManager.registerListener(this, mGyroSensor, SensorManager.SENSOR_DELAY_UI);
mSensorManager.registerListener(this, mAccSensor, SensorManager.SENSOR_DELAY_UI);
mSensorManager.registerListener(this, mMagSensor, SensorManager.SENSOR_DELAY_UI);
}
}