Question

我正在制作Android应用，需要使用GPS来记录司机统计数据，例如速度，航向，海拔高度和长/纬度，并具有良好的准确性。

我需要每秒跟踪一下这个位置，但我似乎没有得到准确的结果。我在市场上尝试过一款Android GPS应用程序，可以返回正确的结果。

到目前为止，我有这个。

    locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
    Criteria criteria = new Criteria();
    provider =  locationManager.getBestProvider(criteria, false);
    Location location = locationManager.getLastKnownLocation(provider);
    VehicleListener vl = new VehicleListener();
    locationManager.requestLocationUpdates( LocationManager.GPS_PROVIDER, 0, 0, vl);

    if (location != null) {
        System.out.println("Provider " + provider + " has been selected.");
        lat =location.getLatitude();
        lon = location.getLongitude();
    }

Answer 1

您使用的是空标准。如果您想要更准确，请尝试使用：

locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_FINE);
provider =  locationManager.getBestProvider(criteria, false);
Location location = locationManager.getLastKnownLocation(provider);
VehicleListener vl = new VehicleListener();
locationManager.requestLocationUpdates( LocationManager.GPS_PROVIDER, 0, 0, vl);

if (location != null) {
    System.out.println("Provider " + provider + " has been selected.");
    lat =location.getLatitude();
    lon = location.getLongitude();
}

Android应用程序位置速度快

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