我已经实现了一个迷你项目，我需要根据位置显示货币符号。如果我在印度，如果美元符号应该显示卢比符号，我已经实现了，但它总是显示英镑符号
我代码:LocationManager locationManager = (LocationManager) getSystemService(ListActivity.LOCATION_SERVICE);
Location loc = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (loc != null) {
Geocoder code = new Geocoder(ListActivity.this);
try {
List<Address> addresses = code.getFromLocation(loc.getLatitude(), loc.getLongitude(), 1);
Address obj = addresses.get(0);
String cc = Currency.getInstance(obj.getLocale()).getSymbol();
Log.d("Currency Symbol : ", cc);
} catch (IOException e) {
e.printStackTrace();
}
}
我需要显示各自国家的货币符号，并从GPS中获取国家，我搜索了很多，最后得出了下面的代码，它工作正常，所以我想分享这个代码，其他人不能浪费时间
这里你需要第一个国家代码，如IN,US从纬度经度我们得到完整的地址
请在运行代码之前检查清单文件中的GPS权限。下面是一些权限
需要GPSTracker.java文件代码创建GPSTracker java文件并编写以下代码。在这条红色的线里别担心，它不会影响什么
public class GPSTracker extends Service implements LocationListener {
private final Context mContext;
// Flag for GPS status
boolean isGPSEnabled = false;
// Flag for network status
boolean isNetworkEnabled = false;
// Flag for GPS status
boolean canGetLocation = false;
Location location; // Location
double latitude; // Latitude
double longitude; // Longitude
// The minimum distance to change Updates in meters
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10; // 10 meters
// The minimum time between updates in milliseconds
private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 1 minute
// Declaring a Location Manager
protected LocationManager locationManager;
public GPSTracker(Context context) {
this.mContext = context;
getLocation();
}
public Location getLocation() {
try {
locationManager = (LocationManager) mContext
.getSystemService(LOCATION_SERVICE);
// Getting GPS status
isGPSEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
// Getting network status
isNetworkEnabled = locationManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (!isGPSEnabled && !isNetworkEnabled) {
// No network provider is enabled
} else {
this.canGetLocation = true;
if (isNetworkEnabled) {
locationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("Network", "Network");
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
// If GPS enabled, get latitude/longitude using GPS Services
if (isGPSEnabled) {
if (location == null) {
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("GPS Enabled", "GPS Enabled");
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;
}
/**
* Stop using GPS listener
* Calling this function will stop using GPS in your app.
* */
public void stopUsingGPS() {
if (locationManager != null) {
//locationManager.removeUpdates(GPSTracker.this);
}
}
/**
* Function to get latitude
* */
public double getLatitude() {
if (location != null) {
latitude = location.getLatitude();
}
// return latitude
return latitude;
}
/**
* Function to get longitude
* */
public double getLongitude() {
if (location != null) {
longitude = location.getLongitude();
}
// return longitude
return longitude;
}
/**
* Function to check GPS/Wi-Fi enabled
* @return boolean
* */
public boolean canGetLocation() {
return this.canGetLocation;
}
/**
* Function to show settings alert dialog.
* On pressing the Settings button it will launch Settings Options.
* */
public void showSettingsAlert() {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);
// Setting Dialog Title
alertDialog.setTitle("GPS is settings");
// Setting Dialog Message
alertDialog.setMessage("GPS is not enabled. Do you want to go to settings menu?");
// On pressing the Settings button.
alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
mContext.startActivity(intent);
}
});
// On pressing the cancel button
alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
// Showing Alert Message
alertDialog.show();
}
@
Override
public void onLocationChanged(Location location) {}
@
Override
public void onProviderDisabled(String provider) {}
@
Override
public void onProviderEnabled(String provider) {}
@
Override
public void onStatusChanged(String provider, int status, Bundle extras) {}
@
Override
public IBinder onBind(Intent arg0) {
return null;
}
}
这里是mainactivity.java类
public class MainActivity extends AppCompatActivity {
public static SortedMap < Currency, Locale > currencyLocaleMap;
TextView t;
Geocoder geocoder;
private static final Map < String, Locale > COUNTRY_TO_LOCALE_MAP = new HashMap < String, Locale > ();
static {
Locale[] locales = Locale.getAvailableLocales();
for (Locale l: locales) {
COUNTRY_TO_LOCALE_MAP.put(l.getCountry(), l);
}
}
public static Locale getLocaleFromCountry(String country) {
return COUNTRY_TO_LOCALE_MAP.get(country);
}
String Currencysymbol = "";
@
Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
t = (TextView) findViewById(R.id.text);
GPSTracker gpsTracker = new GPSTracker(MainActivity.this);
geocoder = new Geocoder(MainActivity.this, getLocaleFromCountry(""));
double lat = gpsTracker.getLatitude();
double lng = gpsTracker.getLongitude();
Log.e("Lat long ", lng + "lat long check" + lat);
currencyLocaleMap = new TreeMap < Currency, Locale > (new Comparator < Currency > () {
public int compare(Currency c1, Currency c2) {
return c1.getCurrencyCode().compareTo(c2.getCurrencyCode());
}
});
for (Locale locale: Locale.getAvailableLocales()) {
try {
Currency currency = Currency.getInstance(locale);
currencyLocaleMap.put(currency, locale);
Log.d("locale utill", currency + " locale1 " + locale.getCountry());
} catch (Exception e) {
Log.d("locale utill", "e" + e);
}
}
try {
List < Address > addresses = geocoder.getFromLocation(lat, lng, 2);
Address obj = addresses.get(0);
Currencysymbol = getCurrencyCode(obj.getCountryCode());
Log.e("getCountryCode", "Exception address " + obj.getCountryCode());
Log.e("Currencysymbol", "Exception address " + Currencysymbol);
} catch (Exception e) {
Log.e("Exception address", "Exception address" + e);
// Log.e("Currencysymbol","Exception address"+Currencysymbol);
}
t.setText(Currencysymbol);
}
public String getCurrencyCode(String countryCode) {
String s = "";
for (Locale locale: Locale.getAvailableLocales()) {
try {
if (locale.getCountry().equals(countryCode)) {
Currency currency = Currency.getInstance(locale);
currencyLocaleMap.put(currency, locale);
Log.d("locale utill", currency + " locale1 " + locale.getCountry() + "s " + s);
s = getCurrencySymbol(currency + "");
}
} catch (Exception e) {
Log.d("locale utill", "e" + e);
}
}
return s;
}
public String getCurrencySymbol(String currencyCode) {
Currency currency = Currency.getInstance(currencyCode);
System.out.println(currencyCode + ":-" + currency.getSymbol(currencyLocaleMap.get(currency)));
return currency.getSymbol(currencyLocaleMap.get(currency));
}
}
你可以使用这个来获取你的Location的区域设置
Locale locale= getResources().getConfiguration().locale;
Currency currency=Currency.getInstance(locale);
String symbol = currency.getSymbol();
reference : Getting Current Locale