是否显示NMEA语句？

Question

任何人帮助显示像$GPRMC这样的NMEA句子.....我使用了下面的代码：

public class SampleNMEA extends Activity implements LocationListener, GpsStatus.Listener,GpsStatus.NmeaListener{

    LocationManager lm;
    TextView output;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        output = (TextView)findViewById(R.id.out);
        lm = (LocationManager) getSystemService(LOCATION_SERVICE);

        lm.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 60000,10,this);
        final Location location=lm.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);


        output.append("\nBelow Data is about the your location:");

        output.append("\n\n\nLatit:"+location.getLatitude());
        output.append("\n\nLongitude:"+location.getLongitude());
        output.append("\n\nTime: "+location.getTime());


    }
    public void onLocationChanged(Location location) 
    {
        output.append("\n\n\nLatitude:"+location.getLatitude());
        output.append("\n\nLongitude:"+location.getLongitude());
        output.append("\n\nTime: "+location.getTime());
    }

    public void onProviderDisabled(String arg0) {
        // TODO Auto-generated method stub

    }

    public void onProviderEnabled(String arg0) {
        // TODO Auto-generated method stub

    }

    public void onStatusChanged(String arg0, int arg1, Bundle arg2) 
    {
         lm.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 60000,10,this);
        final Location location=lm.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
        output.append("\n\n\nLatitude:"+location.getLatitude());
        output.append("\n\nLongitude:"+location.getLongitude());
        output.append("\n\nTime: "+location.getTime());


}

    public void onGpsStatusChanged(int event) 
    {

    }
    public void onNmeaReceived(long timestamp, String nmea) 
    {
        output.append("NMEA Sentence: "+nmea);

    }

    }

我在manifest.xml中添加权限的任何帮助

    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"></uses-permission>

Answer 1

将您的提供程序更改为GPS_PROVIDER。

您可以通过Gps提供商获得nmea语句。

更改此行

     **lm.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 60000,10,this);**

至

     **lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 60000,10,this);**

现在签入onNmeaReceived()方法。

Answer 2

只需添加一个NmeaListener

  public class SampleNMEA extends Activity implements LocationListener, GpsStatus.Listener,GpsStatus.NmeaListener{
LocationManager lm;
TextView output;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    output = (TextView)findViewById(R.id.out);
    lm = (LocationManager) getSystemService(LOCATION_SERVICE);

    lm.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 60000,10,this);
    final Location location=lm.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);


    output.append("\nBelow Data is about the your location:");

    output.append("\n\n\nLatit:"+location.getLatitude());
    output.append("\n\nLongitude:"+location.getLongitude());
    output.append("\n\nTime: "+location.getTime());
   //add listener here
    lm.AddNmeaListener(this);





}

Answer 3

我有三星Galaxy Spica，是的，它不能工作。然而，我已经安装了‘超级全球定位系统记录器’(link)和NMEA数据被正确读取。也许这个工具的作者使用了不同的解决方案来阅读NMEA，这意味着这是可能的。