How do I get the country code of a user on Android?

How can I retrieve 开发者_开发百科a user's country code on Android? Do I need permissions?

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To get the country code stored in the sim card of the phone you can try

TelephonyManager telephonyManager = (TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE);
telephonyManager.getSimCountryIso();

You can try also:

 Locale locale = Locale.getDefault();
 locale.getCountry();

This returns the data from the language/Country stated from the user and not the physical location.

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Latitude and Longitude of the current location

Will get you the latitude and longitude.

I'd suggest using Google Map's reverse geocoding for getting the country, and then using a lookup table if you want to get some country code (I'd assume the country's telephone code, but I could be wrong).

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Best practice from the: Localization documentation recommends using the Locale set here:

context.getResources().getConfiguration().locale;

Furthermore, this field is also mentioned here. You can then call getCountry() on it to obtain the two-letter uppercase ISO country code as defined by ISO 3166-1. Note that java doc says it may return an empty String if the Locale doesn't correspond to specific country.

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You can try the following function. It's returning your country ISO code:

  TelephonyManager telephonyManager = (TelephonyManager) context
            .getSystemService(Context.TELEPHONY_SERVICE);

        public String getSimCountryIso() {

    return telephonyManager.getSimCountryIso();

}

Add permission below into your AndroidManifest.xml file.

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