Android加速计数据类
我有以下类从Android加速计数据类,android,accelerometer,android-sensors,android-searchmanager,Android,Accelerometer,Android Sensors,Android Searchmanager,我有以下类从加速计中读取数据: public class Accelerometer implements SensorEventListener { private SensorManager mSensorManager; private Sensor mAccelerometer; float deltaX; float deltaY; float deltaZ; Activity activity; public Acc
加速计中读取数据:
public class Accelerometer implements SensorEventListener {
private SensorManager mSensorManager;
private Sensor mAccelerometer;
float deltaX;
float deltaY;
float deltaZ;
Activity activity;
public Accelerometer(Activity act)
{
this.activity = act;
mSensorManager = (SensorManager) this.activity.getSystemService(Context.SENSOR_SERVICE);
mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
mSensorManager.registerListener(this, mAccelerometer, SensorManager.SENSOR_DELAY_NORMAL);
}
public float getDeltaX()
{
return this.deltaX;
}
public float getDeltaY()
{
return this.deltaY;
}
public float getDeltaZ()
{
return this.deltaZ;
}
@Override
public void onSensorChanged(SensorEvent event) {
// TODO Auto-generated method stub
deltaX = event.values[0];
deltaY = event.values[1];
deltaZ = event.values[2];
}
}
我使用以下代码从我的主活动
类访问该类:
Accelerometer sbt = new Accelerometer (this);
tvX.setText(Float.toString(sbt.getDeltaX()) + " " +Float.toString(sbt.getDeltaY()) + " "+Float.toString(sbt.getDeltaZ()));
但是,它总是显示0,0,0。不确定当前代码有什么问题。任何帮助都将不胜感激。加速计(和所有传感器数据)在回调系统上工作。在下次读取传感器之前,它不会呼叫您,在您注销之前,它将继续呼叫您的onSensorChanged。但是,如果您尝试在注册后立即设置文本,您将不会被调用。当您使用新值进行更新时,需要在onSensorChanged中设置textView。您是在设备或模拟器上尝试吗?。。。