Question

基本思路：我想同时监控陀螺仪和加速度计。

private SensorManager mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
private Sensor mAccSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
private Sensor mGyroSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_GYROSCOPE);

@Override
protected void onResume() {
    super.onResume();
    mSensorManager.registerListener(this, mGyroSensor, SensorManager.SENSOR_DELAY_NORMAL);
    mSensorManager.registerListener(this, mAccSensor, SensorManager.SENSOR_DELAY_NORMAL);
}

@Override
protected void onPause() {
    super.onPause();
    mSensorManager.unregisterListener(this);
}

@Override
public void onSensorChanged(SensorEvent event) {
    if (event.sensor.getType() == Sensor.TYPE_GYROSCOPE) {

        mGyroValues = event.values.clone();

        float x = mGyroValues[0];
        float y = mGyroValues[1];
        float z = mGyroValues[2];

        if (Math.abs(x) > 0.2 || Math.abs(y) > 0.2 || Math.abs(z) > 0.2) {
            deviceStatus.setText("Your device IS moving");
        } else {
            deviceStatus.setText("Your device IS NOT moving");
        }

    } else if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {

        mAccValues = event.values.clone();

        float x = mAccValues[0];
        float y = mAccValues[1];
        float z = mAccValues[2];
        mAccelLast = mAccelCurrent;
        mAccelCurrent = FloatMath.sqrt(x * x + y * y + z * z);
        float delta = mAccelCurrent - mAccelLast;
        mAccel = mAccel * 1.0f + delta;

        if (mAccel > 0.2) {
            deviceStatus.setText("Your device IS moving");
        } else {
            deviceStatus.setText("Your device IS NOT moving");
        }
    }

理论上，这应该使deviceStatus（只是一个TextView）在我拿起电话的时候（通过加速度计数据）有文字"Your device IS moving"或任何时候我旋转它时放下它表（通过陀螺仪数据）。

但是，当我在桌面上旋转它时，它似乎没有改变文本。我正在将各种传感器数据输出到其他TextView，以便我可以确认两个传感器都在发送数据。在我看来，只有我的加速度计代码才能正确执行。关于我做错了什么想法？

如何在Android上监控多个传感器？

0 个答案: