我需要在我的应用程序中计算yz角度。我试图使用陀螺仪,但它不起作用。我的手机甚至没有输入功能onSensorChanged。你能帮助我吗?这是我的代码
MainActivity:
public class mainActivity extends Activity implements SensorEventListener {
private SensorManager mSensorManager;
private Sensor mSensor;
private float xy_angle;
private float xz_angle;
private float yz_angle;
private TextView yzPlane;
public void onAccuracyChanged(Sensor sensor, int accuracy)
{
}
protected void onResume()
{
super.onResume();
}
protected void onPause()
{
super.onPause();
}
public void onSensorChanged(SensorEvent sensorEvent)
{
xy_angle = sensorEvent.values[0];
xz_angle = sensorEvent.values[1];
yz_angle = sensorEvent.values[2];
Log.i("Test", "Trying to change sensor" + String.valueOf(xy_angle));
yzPlane.setText("Angle is: " + String.valueOf(yz_angle));
}
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mSensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
mSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_GYROSCOPE);
mSensorManager.registerListener(this, mSensor, SensorManager.SENSOR_DELAY_FASTEST);
yzPlane = (TextView) findViewById(R.id.yzPlane);
}
我在清单文件中也有使用功能:
<uses-feature android:name="android.hardware.sensor.gyroscope" android:required="true"/>
我有索尼Xperia M2所以它有一个陀螺仪。但亚行正在给我这个错误:
21681-21681 / com.example.orientationsensor E / SensorManager:传感器或监听器为空
答案 0 :(得分:1)
A̶s̶̶i̶̶k̶n̶o̶w̶,̶̶X̶p̶e̶r̶i̶a̶̶M̶2̶̶d̶o̶e̶s̶n̶'̶t̶̶h̶a̶v̶e̶̶a̶̶g̶y̶r̶o̶s̶c̶o̶p̶e̶.̶尝试注册另一个传感器,f.e。加速度计,看看是否调用了onSensorChanged
。也许是错误...