我正在尝试为nVidia防护罩创建增强现实应用程序。
我在另一台Android设备上尝试了我的应用,并且可以正常运行。
不幸的是,在屏蔽层上,不会触发onSensorChanged事件。

这是我的代码:

        _sensorEventListener = new SensorEventListener()
        {
            public void onSensorChanged(SensorEvent event) {
                AndroidAttitude.this.processSensorEvent(event);
            }

            public void onAccuracyChanged(Sensor sensor, int accuracy)
            {
            }
        };

        Thread sensorThread = new Thread(new Runnable()
        {
            public void run() {
                Looper.prepare();

                _sensorLooper = Looper.myLooper();
                Handler handler = new Handler();

                _sensorManager = (SensorManager)_context.getSystemService("sensor");

                Sensor sensor = _sensorManager.getDefaultSensor(Sensor.TYPE_ROTATION_VECTOR);
                _sensorManager.registerListener(_sensorEventListener, sensor, 0, _sensorManager.SENSOR_DELAY_GAME);

                Looper.loop();
            }
        });

        sensorThread.start();


这是将值转换为旋转矩阵的地方:

private synchronized void processSensorEvent(SensorEvent event)
{
    float[] rotationVector = { -event.values[1], event.values[0], event.values[2] };

    float[] quaternion = new float[4];
    float[] rotationMatrix = new float[16];

    _sensorManager.getQuaternionFromVector(quaternion, rotationVector);
    _sensorManager.getRotationMatrixFromVector(rotationMatrix, rotationVector);

}


知道为什么它行不通吗?

最佳答案

好的,如果您必须使用TYPE_ROTATION_VECTOR,则将SENSOR_DELAY_GAME更改为SENSOR_DELAY_NORMAL

  Sensor sensor = _sensorManager.getDefaultSensor(Sensor.TYPE_ROTATION_VECTOR);
        _sensorManager.registerListener(_sensorEventListener, sensor, 0, _sensorManager.SENSOR_DELAY_NORMAL)

09-25 21:46