点击我的操作按钮后出错。我从一个名为＆＃34;的类中取两个坐标。 GPSTracker＆＃34;然后我用方法回到我的班级＃34; getLatitude＆＃34;和＆＃34; getLongitude＆＃34; 。如果我点击我的操作按钮，我会收到此错误：
09-12 17:07:46.898 24575-24575/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.application.marcoopsone.centrocommercialecampania, PID: 24575
java.lang.NumberFormatException: Invalid double: "4782877,28"
at java.lang.StringToReal.invalidReal(StringToReal.java:63)
at java.lang.StringToReal.initialParse(StringToReal.java:164)
at java.lang.StringToReal.parseDouble(StringToReal.java:282)
at java.lang.Double.parseDouble(Double.java:301)
at com.application.marcoopsone.centrocommercialecampania.FragmentCar.getFila(FragmentCar.java:177)
at com.application.marcoopsone.centrocommercialecampania.FragmentCar$1.onClick(FragmentCar.java:95)
at android.view.View.performClick(View.java:5254)
at android.view.View$PerformClick.run(View.java:21174)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:6862)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1404)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1199)
如果我在模拟器genymotion上运行应用程序，那好吧！如果我使用我的三星平板电脑，我会收到错误消息。我该如何解决？
答案 0 :(得分：0)
<强> GPSTracker
导入...
公共类GPSTracker扩展服务实现LocationListener {
private final Context context;
boolean isGPSEnabled = false;
boolean isNetworkEnabled = false;
boolean canGetLocation = false;
Location location;
double latitude;
double longitude;
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10;
private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1;
protected LocationManager locationManager;
public GPSTracker(Context context) {
this.context = context;
getLocation();
}
public Location getLocation() {
try {
locationManager = (LocationManager) context.getSystemService(LOCATION_SERVICE);
isGPSEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
isNetworkEnabled = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (!isGPSEnabled && !isNetworkEnabled) {
} else {
this.canGetLocation = true;
if (isNetworkEnabled) {
locationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
if (isGPSEnabled) {
if (location == null) {
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
if (locationManager != null) {
location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return location;
}
public void stopUsingGPS() {
if (locationManager != null) {
locationManager.removeUpdates(GPSTracker.this);
}
}
public double getLatitude() {
if(location != null) {
latitude = location.getLatitude();
}
return latitude;
}
public double getLongitude() {
if(location != null) {
longitude = location.getLongitude();
}
return longitude;
}
public boolean canGetLocation() {
return this.canGetLocation;
}
public void showSettingsAlert() {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(context);
alertDialog.setTitle("GPS is settings");
alertDialog.setMessage("GPS is not enabled. Do you want to go to settings menu?");
alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
context.startActivity(intent);
}
});
alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
alertDialog.show();
}
@Override
public void onLocationChanged(Location arg0) {
// TODO Auto-generated method stub
}
@Override
public void onProviderDisabled(String arg0) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String arg0) {
// TODO Auto-generated method stub
}
@Override
public void onStatusChanged(String arg0, int arg1, Bundle arg2) {
// TODO Auto-generated method stub
}
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
}
片段车
公共类FragmentCar扩展了android.support.v4.app.Fragment {
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
private TextView textFila;
private Button btn;
//VARIABILI GPS
GPSTracker gps;
static final int RAGGIO = 6371;
static final double PIGRECO = Math.PI;
double f1_latitudine = 41.00413;
double f1_longitudine = 14.32642;
double f2_latitudine = 41.00399;
double f2_longitudine = 14.32643;
double f3_latitudine = 41.00385;
double f3_longitudine = 14.32645;
double f4_latitudine = 41.0037;
double f4_longitudine = 14.32647;
double f5_latitudine = 41.00359;
double f5_longitudine = 14.32648;
double p_latitudine = 41.00388;
double p_longitudine = 14.32584;
double ps_latitudine = 41.00402;
double ps_longitudine = 14.3248;
private FloatingActionButton mFAB;
public FragmentCar() {
// Required empty public constructor
}
public static android.support.v4.app.Fragment newInstance(String param1, String param2) {
FragmentCar fragment = new FragmentCar();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View layout = inflater.inflate(R.layout.fragment_car, container, false);
//setupFAB();
textFila = (TextView) layout.findViewById(R.id.textFila);
btn = (Button) layout.findViewById(R.id.buttonSavePosition);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
getFila();
}
});
return layout;
}
private void setupFAB() {
//define the icon for the main floating action button
ImageView iconFAB = new ImageView(getActivity());
iconFAB.setImageResource(R.drawable.ic_action_new);
//set the appropriate background for the main floating action button along with its icon
mFAB = new FloatingActionButton.Builder(getActivity())
.setContentView(iconFAB)
.setBackgroundDrawable(R.drawable.selector_button_red)
.build();
mFAB.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
getFila();
}
});
}
public void getFila(){
gps = new GPSTracker(getActivity());
if(gps.canGetLocation()) {
double latitude = 0;
double longitude = 0;
latitude = new Double(gps.getLatitude());
longitude = new Double(gps.getLongitude());
DecimalFormat df = new DecimalFormat("0.000000");
double lat = Double.parseDouble(df.format(latitude));
double lon = Double.parseDouble(df.format(longitude));
double laRadianti = (lat * PIGRECO) / 180;
double loRadianti = (lon * PIGRECO) / 180;
double f1_latitudineRadianti = (f1_latitudine * PIGRECO) / 180;
double f1_longitudineRadianti = (f1_longitudine * PIGRECO) / 180;
double f2_latitudineRadianti = (f2_latitudine * PIGRECO) / 180;
double f2_longitudineRadianti = (f2_longitudine * PIGRECO) / 180;
double f3_latitudineRadianti = (f3_latitudine * PIGRECO) / 180;
double f3_longitudineRadianti = (f3_longitudine * PIGRECO) / 180;
double f4_latitudineRadianti = (f4_latitudine * PIGRECO) / 180;
double f4_longitudineRadianti = (f4_longitudine * PIGRECO) / 180;
double f5_latitudineRadianti = (f5_latitudine * PIGRECO) / 180;
double f5_longitudineRadianti = (f5_longitudine * PIGRECO) / 180;
double p_latitudineRadianti = (p_latitudine * PIGRECO) / 180;
double p_longitudineRadianti = (p_longitudine * PIGRECO) / 180;
double distanzaUno = ((RAGGIO * Math.acos(Math.sin(laRadianti) * Math.sin(f1_latitudineRadianti) +
Math.cos(laRadianti) * Math.cos(f1_latitudineRadianti) * Math.cos((loRadianti - f1_longitudineRadianti))))) * 1000;
double distanzaDue = ((RAGGIO * Math.acos(Math.sin(laRadianti) * Math.sin(f2_latitudineRadianti) +
Math.cos(laRadianti) * Math.cos(f2_latitudineRadianti) * Math.cos((loRadianti - f2_longitudineRadianti))))) * 1000;
double distanzaTre = ((RAGGIO * Math.acos(Math.sin(laRadianti) * Math.sin(f3_latitudineRadianti) +
Math.cos(laRadianti) * Math.cos(f3_latitudineRadianti) * Math.cos((loRadianti - f3_longitudineRadianti))))) * 1000;
double distanzaQuattro = ((RAGGIO * Math.acos(Math.sin(laRadianti) * Math.sin(f4_latitudineRadianti) +
Math.cos(laRadianti) * Math.cos(f4_latitudineRadianti) * Math.cos((loRadianti - f4_longitudineRadianti))))) * 1000;
double distanzaCinque = ((RAGGIO * Math.acos(Math.sin(laRadianti) * Math.sin(f5_latitudineRadianti) +
Math.cos(laRadianti) * Math.cos(f5_latitudineRadianti) * Math.cos((loRadianti - f5_longitudineRadianti))))) * 1000;
double distanzaPunto = ((RAGGIO * Math.acos(Math.sin(laRadianti) * Math.sin(p_latitudineRadianti) +
Math.cos(laRadianti) * Math.cos(p_latitudineRadianti) * Math.cos((loRadianti - p_longitudineRadianti))))) * 1000;
DecimalFormat df1 = new DecimalFormat("0.00");
double distanzaFilaUno = Double.parseDouble(df1.format(distanzaUno));
double distanzaFilaDue = Double.parseDouble(df1.format(distanzaDue));
double distanzaFilaTre = Double.parseDouble(df1.format(distanzaTre));
double distanzaFilaQuattro = Double.parseDouble(df1.format(distanzaQuattro));
double distanzaFilaCinque = Double.parseDouble(df1.format(distanzaCinque));
double distanzaFilaPunto = Double.parseDouble(df1.format(distanzaPunto));
if(distanzaFilaUno < distanzaFilaDue && distanzaFilaUno < distanzaFilaTre && distanzaFilaUno < distanzaFilaQuattro && distanzaFilaUno < distanzaFilaCinque){
if(distanzaFilaUno > 110 && distanzaFilaUno < 300){
textFila.setText("fila uno");
} else if (distanzaFilaCinque > 300){
textFila.setText("Ops!");
} else {
textFila.setText("1");
}
} else if (distanzaFilaDue < distanzaFilaUno && distanzaFilaDue < distanzaFilaTre && distanzaFilaDue < distanzaFilaQuattro && distanzaFilaDue < distanzaFilaCinque){
if(distanzaFilaDue > 110 && distanzaFilaDue < 300){
textFila.setText("fila due");
} else if (distanzaFilaCinque > 300){
textFila.setText("Ops!");
} else {
textFila.setText("2");
}
} else if (distanzaFilaTre < distanzaFilaUno && distanzaFilaTre < distanzaFilaDue && distanzaFilaTre < distanzaFilaQuattro && distanzaFilaTre < distanzaFilaCinque){
if(distanzaFilaTre > 110 && distanzaFilaTre < 300){
textFila.setText("fila tre");
} else if (distanzaFilaCinque > 300){
textFila.setText("Ops!");
} else {
textFila.setText("3");
}
} else if (distanzaFilaQuattro < distanzaFilaUno && distanzaFilaQuattro < distanzaFilaDue && distanzaFilaQuattro < distanzaFilaTre && distanzaFilaQuattro < distanzaFilaCinque){
if(distanzaFilaQuattro > 110 && distanzaFilaQuattro < 300){
textFila.setText("fila quattro");
} else if (distanzaFilaCinque > 300){
textFila.setText("Ops!");
} else {
textFila.setText("4");
}
} else if (distanzaFilaCinque < distanzaFilaUno && distanzaFilaCinque < distanzaFilaDue && distanzaFilaCinque < distanzaFilaTre && distanzaFilaCinque < distanzaFilaQuattro){
if(distanzaFilaCinque > 110 && distanzaFilaCinque < 300){
textFila.setText("fila cinque");
} else if (distanzaFilaCinque > 300){
textFila.setText("Ops!");
} else {
textFila.setText("5");
}
}
} else {
gps.showSettingsAlert();
}
}
}