我正在尝试检测Android设备的移动,因为我的应用程序在检测到移动时启动,因为我正在使用加速计运动传感器。但它正在检测手机抖动时的移动,但不能正常运动。我没有得到如何检测平滑运动。
这是加速度计上的运动传感器代码。
public void onSensorChanged(SensorEvent event) {
// TODO Auto-generated method stub
TextView tvX= (TextView)findViewById(R.id.x_axis);
TextView tvY= (TextView)findViewById(R.id.y_axis);
TextView tvZ= (TextView)findViewById(R.id.z_axis);
ImageView iv = (ImageView)findViewById(R.id.image);
float x = event.values[0];
float y = event.values[1];
float z = event.values[2];
if (!mInitialized) {
mLastX = x;
mLastY = y;
mLastZ = z;
tvX.setText("0.0");
tvY.setText("0.0");
tvZ.setText("0.0");
mInitialized = true;
} else {
float deltaX = Math.abs(mLastX - x);
float deltaY = Math.abs(mLastY - y);
float deltaZ = Math.abs(mLastZ - z);
if (deltaX < NOISE) deltaX = (float)0.0;
if (deltaY < NOISE) deltaY = (float)0.0;
if (deltaZ < NOISE) deltaZ = (float)0.0;
mLastX = x;
mLastY = y;
mLastZ = z;
tvX.setText(Float.toString(deltaX));
tvY.setText(Float.toString(deltaY));
tvZ.setText(Float.toString(deltaZ));
iv.setVisibility(View.VISIBLE);
if(deltaX!=0||deltaY!=0||deltaZ!=0)
{
Handler gpsHandler = new Handler();
// locateHandler.sendEmptyMessage(1);
gpsHandler.post(new Runnable() {
public void run() {
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, mlocListener);}});
}
}
}