blocks|key|1870941|text|首先，获取LocationManager。然后，调用LocationManager.getLastKnownPosition。然后创建一个GeoCoder并调用GeoCoder.getFromLocation。这是在一个单独的线程中完成的！这将为您提供一个Address对象列表。给Address.getCountryName打电话，你就能搞定了。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1870942|请记住，最后已知的位置可能有点陈旧，因此如果用户刚刚越过边界，您可能会在一段时间内不知道它。|1870943|entityMap^0|Q|10|28|O|3K|7|3X|M|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]|$9|Q|A|R|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|S|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|I|$]]

First, get the LocationManager. Then, call <code>LocationManager.getLastKnownPosition</code>. Then create a GeoCoder and call <code>GeoCoder.getFromLocation</code>. Do this is in a separate thread!! This will give you a list of <code>Address</code> objects. Call <code>Address.getCountryName</code> and you got it.

Keep in mind that the last known position can be a bit stale, so if the user just crossed the border, you may not know about it for a while.

blocks|key|1870947|text|你可以使用getNetworkCountryIso()+from+TelephonyManager来获取手机当前所在的国家(尽管这在CDMA网络上显然是不可靠的)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1870948|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.android.com/reference/android/telephony/TelephonyManager.html#getNetworkCountryIso()^0|5|M|X|G|5|18|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]|$9|Q|A|R|B|C]]|D|@$9|S|A|T|1|U]]|E|$]]|$1|F|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]]]

You could use <a href="https://developer.android.com/reference/android/telephony/TelephonyManager.html#getNetworkCountryIso()" rel="noreferrer"><code>getNetworkCountryIso()</code> from <code>TelephonyManager</code></a> to get the country the phone is currently in (although apparently this is unreliable on CDMA networks).

blocks|key|2084896|text|实际上，我刚刚发现还有一种获取国家代码的方法，那就是使用TelephoneManager的getSimCountryIso()方法|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2084897|TelephonyManager+tm+=+(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
String+countryCode+=+tm.getSimCountryIso();|code-block|syntax|javascript|2084898|因为它是sim代码，所以在旅行到其他国家时也不应该改变。|2084899|entityMap^0|S|G|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

Actually I just found out that there is even one more way of getting a country code, using the getSimCountryIso() method of <code>TelephoneManager</code>:

<pre><code>TelephonyManager tm = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
String countryCode = tm.getSimCountryIso();
</code></pre>

Since it is the sim code it also should not change when traveling to other countries.

blocks|key|2084903|text|/**
+*+Get+ISO+3166-1+alpha-2+country+code+for+this+device+(or+null+if+not+available)
+*+@param+context+Context+reference+to+get+the+TelephonyManager+instance+from
+*+@return+country+code+or+null
+*/
public+static+String+getUserCountry(Context+context)+{
++++try+{
++++++++final+TelephonyManager+tm+=+(TelephonyManager)+context.getSystemService(Context.TELEPHONY_SERVICE);
++++++++final+String+simCountry+=+tm.getSimCountryIso();
++++++++if+(simCountry+!=+null+&&+simCountry.length()+==+2)+{+//+SIM+country+code+is+available
++++++++++++return+simCountry.toLowerCase(Locale.US);
++++++++}
++++++++else+if+(tm.getPhoneType()+!=+TelephonyManager.PHONE_TYPE_CDMA)+{+//+device+is+not+3G+(would+be+unreliable)
++++++++++++String+networkCountry+=+tm.getNetworkCountryIso();
++++++++++++if+(networkCountry+!=+null+&&+networkCountry.length()+==+2)+{+//+network+country+code+is+available
++++++++++++++++return+networkCountry.toLowerCase(Locale.US);
++++++++++++}
++++++++}
++++}
++++catch+(Exception+e)+{+}
++++return+null;
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2084904|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>/**
 * Get ISO 3166-1 alpha-2 country code for this device (or null if not available)
 * @param context Context reference to get the TelephonyManager instance from
 * @return country code or null
 */
public static String getUserCountry(Context context) {
 try {
 final TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
 final String simCountry = tm.getSimCountryIso();
 if (simCountry != null &amp;&amp; simCountry.length() == 2) { // SIM country code is available
 return simCountry.toLowerCase(Locale.US);
 }
 else if (tm.getPhoneType() != TelephonyManager.PHONE_TYPE_CDMA) { // device is not 3G (would be unreliable)
 String networkCountry = tm.getNetworkCountryIso();
 if (networkCountry != null &amp;&amp; networkCountry.length() == 2) { // network country code is available
 return networkCountry.toLowerCase(Locale.US);
 }
 }
 }
 catch (Exception e) { }
 return null;
}
</code></pre>

blocks|key|2084909|text|我使用了GEOIP+db并创建了一个函数。您可以通过http://jamhubsoftware.com/geoip/getcountry.php直接使用此链接|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2084910|{"country":["India"],"isoCode":["IN"],"names":[{"de":"Indien","en":"India","es":"India","fr":"Inde","ja":"\u30a4\u30f3\u30c9","pt-BR":"\u00cdndia","ru":"\u0418\u043d\u0434\u0438\u044f","zh-CN":"\u5370\u5ea6"}]}|code-block|syntax|javascript|2084911|您可以从https://dev.maxmind.com/geoip/geoip2/geolite2/下载autoload.php和.mmdb文件|2084912|ini_set('display_errors',+1);
ini_set('display_startup_errors',+1);
error_reporting(E_ALL);
$ip_address+=+$_SERVER['REMOTE_ADDR'];
//$ip_address+=+'3.255.255.255';

require_once+'vendor/autoload.php';

use+GeoIp2\Database\Reader;

//+This+creates+the+Reader+object,+which+should+be+reused+across
//+lookups.
$reader+=+new+Reader('/var/www/html/geoip/GeoLite2-City.mmdb');

//+Replace+"city"+with+the+appropriate+method+for+your+database,+e.g.,
//+"country".
$record+=+$reader->city($ip_address);

//print($record->country->isoCode+.+"\n");+//+'US'
//print($record->country->name+.+"\n");+//+'United+States'
$rows['country'][]+=+$record->country->name;
$rows['isoCode'][]+=+$record->country->isoCode;
$rows['names'][]+=+$record->country->names;
print+json_encode($rows);
//print($record->country->names['zh-CN']+.+"\n");+//+'美国'
//
//print($record->mostSpecificSubdivision->name+.+"\n");+//+'Minnesota'
//print($record->mostSpecificSubdivision->isoCode+.+"\n");+//+'MN'
//
//print($record->city->name+.+"\n");+//+'Minneapolis'
//
//print($record->postal->code+.+"\n");+//+'55455'
//
//print($record->location->latitude+.+"\n");+//+44.9733
//print($record->location->longitude+.+"\n");+//+-93.2323
?>|2084913|entityMap|0|LINK|mutability|MUTABLE|url|http://jamhubsoftware.com/geoip/getcountry.php|1|https://dev.maxmind.com/geoip/geoip2/geolite2/^0|Q|1A|0|0|0|4|1A|1|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|F|7|10|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|11|8|@]|9|@$A|12|B|13|1|14]]|C|$]]|$1|K|3|L|5|F|7|15|8|@]|9|@]|C|$G|H]]|$1|M|3|-4|5|6|7|16|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]|U|$5|P|Q|R|C|$S|V]]]]

I used GEOIP db and created a function. You can consume this link directly
<a href="http://jamhubsoftware.com/geoip/getcountry.php" rel="nofollow">http://jamhubsoftware.com/geoip/getcountry.php</a>

<pre><code>{"country":["India"],"isoCode":["IN"],"names":[{"de":"Indien","en":"India","es":"India","fr":"Inde","ja":"\u30a4\u30f3\u30c9","pt-BR":"\u00cdndia","ru":"\u0418\u043d\u0434\u0438\u044f","zh-CN":"\u5370\u5ea6"}]}
</code></pre>

you can download autoload.php and .mmdb file from <a href="https://dev.maxmind.com/geoip/geoip2/geolite2/" rel="nofollow">https://dev.maxmind.com/geoip/geoip2/geolite2/</a>
 

<pre><code>ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);
$ip_address = $_SERVER['REMOTE_ADDR'];
//$ip_address = '3.255.255.255';

require_once 'vendor/autoload.php';

use GeoIp2\Database\Reader;

// This creates the Reader object, which should be reused across
// lookups.
$reader = new Reader('/var/www/html/geoip/GeoLite2-City.mmdb');

// Replace "city" with the appropriate method for your database, e.g.,
// "country".
$record = $reader-&gt;city($ip_address);

//print($record-&gt;country-&gt;isoCode . "\n"); // 'US'
//print($record-&gt;country-&gt;name . "\n"); // 'United States'
$rows['country'][] = $record-&gt;country-&gt;name;
$rows['isoCode'][] = $record-&gt;country-&gt;isoCode;
$rows['names'][] = $record-&gt;country-&gt;names;
print json_encode($rows);
//print($record-&gt;country-&gt;names['zh-CN'] . "\n"); // '美国'
//
//print($record-&gt;mostSpecificSubdivision-&gt;name . "\n"); // 'Minnesota'
//print($record-&gt;mostSpecificSubdivision-&gt;isoCode . "\n"); // 'MN'
//
//print($record-&gt;city-&gt;name . "\n"); // 'Minneapolis'
//
//print($record-&gt;postal-&gt;code . "\n"); // '55455'
//
//print($record-&gt;location-&gt;latitude . "\n"); // 44.9733
//print($record-&gt;location-&gt;longitude . "\n"); // -93.2323
?&gt;
</code></pre>

blocks|key|2084915|text|这是一个完整的解决方案，基于LocationManager，并作为备用TelephonyManager和网络提供商的位置。我使用了来自@Marco+W.的上述答案作为后备部分(答案本身就很棒！)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2084916|注意:代码包含PreferencesManager，这是一个从SharedPrefrences保存和加载数据的帮助器类。我用它来将国家保存到S"P，我只在国家为空的情况下才会得到它，对于我的产品，我并不真正关心所有的边缘情况(用户出国旅行等等)。|2084917|public+static+String+getCountry(Context+context)+{
++++String+country+=+PreferencesManager.getInstance(context).getString(COUNTRY);
++++if+(country+!=+null)+{
++++++++return+country;
++++}

++++LocationManager+locationManager+=+(LocationManager)+PiplApp.getInstance().getSystemService(Context.LOCATION_SERVICE);
++++if+(locationManager+!=+null)+{
++++++++Location+location+=+locationManager
++++++++++++++++.getLastKnownLocation(LocationManager.GPS_PROVIDER);
++++++++if+(location+==+null)+{
++++++++++++location+=+locationManager
++++++++++++++++++++.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
++++++++}
++++++++if+(location+==+null)+{
++++++++++++log.w("Couldn't+get+location+from+network+and+gps+providers")
++++++++++++return
++++++++}
++++++++Geocoder+gcd+=+new+Geocoder(context,+Locale.getDefault());
++++++++List<Address>+addresses;
++++++++try+{
++++++++++++addresses+=+gcd.getFromLocation(location.getLatitude(),
++++++++++++++++++++location.getLongitude(),+1);

++++++++++++if+(addresses+!=+null+&&+!addresses.isEmpty())+{
++++++++++++++++country+=+addresses.get(0).getCountryName();
++++++++++++++++if+(country+!=+null)+{
++++++++++++++++++++PreferencesManager.getInstance(context).putString(COUNTRY,+country);
++++++++++++++++++++return+country;
++++++++++++++++}
++++++++++++}
++++++++}+catch+(Exception+e)+{
++++++++++++e.printStackTrace();
++++++++}
++++}

++++country+=+getCountryBasedOnSimCardOrNetwork(context);
++++if+(country+!=+null)+{
++++++++PreferencesManager.getInstance(context).putString(COUNTRY,+country);
++++++++return+country;
++++}
++++return+null;
}


/**
+*+Get+ISO+3166-1+alpha-2+country+code+for+this+device+(or+null+if+not+available)
+*
+*+@param+context+Context+reference+to+get+the+TelephonyManager+instance+from
+*+@return+country+code+or+null
+*/
private+static+String+getCountryBasedOnSimCardOrNetwork(Context+context)+{
++++try+{
++++++++final+TelephonyManager+tm+=+(TelephonyManager)+context.getSystemService(Context.TELEPHONY_SERVICE);
++++++++final+String+simCountry+=+tm.getSimCountryIso();
++++++++if+(simCountry+!=+null+&&+simCountry.length()+==+2)+{+//+SIM+country+code+is+available
++++++++++++return+simCountry.toLowerCase(Locale.US);
++++++++}+else+if+(tm.getPhoneType()+!=+TelephonyManager.PHONE_TYPE_CDMA)+{+//+device+is+not+3G+(would+be+unreliable)
++++++++++++String+networkCountry+=+tm.getNetworkCountryIso();
++++++++++++if+(networkCountry+!=+null+&&+networkCountry.length()+==+2)+{+//+network+country+code+is+available
++++++++++++++++return+networkCountry.toLowerCase(Locale.US);
++++++++++++}
++++++++}
++++}+catch+(Exception+e)+{
++++}
++++return+null;
}|code-block|syntax|javascript|2084918|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Here is a complete solution based on the LocationManager and as fallbacks the TelephonyManager and the Network Provider's locations. I used the above answer from @Marco W. for the fallback part(great answer as itself!).

Note: the code contains PreferencesManager, this is a helper class that saves and loads data from SharedPrefrences. I'm using it to save the country to S"P, I'm only getting the country if it is empty. For my product I don't really care for all the edge cases(user travels abroad and so on).

<pre><code>public static String getCountry(Context context) {
 String country = PreferencesManager.getInstance(context).getString(COUNTRY);
 if (country != null) {
 return country;
 }

 LocationManager locationManager = (LocationManager) PiplApp.getInstance().getSystemService(Context.LOCATION_SERVICE);
 if (locationManager != null) {
 Location location = locationManager
 .getLastKnownLocation(LocationManager.GPS_PROVIDER);
 if (location == null) {
 location = locationManager
 .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
 }
 if (location == null) {
 log.w("Couldn't get location from network and gps providers")
 return
 }
 Geocoder gcd = new Geocoder(context, Locale.getDefault());
 List&lt;Address&gt; addresses;
 try {
 addresses = gcd.getFromLocation(location.getLatitude(),
 location.getLongitude(), 1);

 if (addresses != null &amp;&amp; !addresses.isEmpty()) {
 country = addresses.get(0).getCountryName();
 if (country != null) {
 PreferencesManager.getInstance(context).putString(COUNTRY, country);
 return country;
 }
 }
 } catch (Exception e) {
 e.printStackTrace();
 }
 }

 country = getCountryBasedOnSimCardOrNetwork(context);
 if (country != null) {
 PreferencesManager.getInstance(context).putString(COUNTRY, country);
 return country;
 }
 return null;
}


/**
 * Get ISO 3166-1 alpha-2 country code for this device (or null if not available)
 *
 * @param context Context reference to get the TelephonyManager instance from
 * @return country code or null
 */
private static String getCountryBasedOnSimCardOrNetwork(Context context) {
 try {
 final TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
 final String simCountry = tm.getSimCountryIso();
 if (simCountry != null &amp;&amp; simCountry.length() == 2) { // SIM country code is available
 return simCountry.toLowerCase(Locale.US);
 } else if (tm.getPhoneType() != TelephonyManager.PHONE_TYPE_CDMA) { // device is not 3G (would be unreliable)
 String networkCountry = tm.getNetworkCountryIso();
 if (networkCountry != null &amp;&amp; networkCountry.length() == 2) { // network country code is available
 return networkCountry.toLowerCase(Locale.US);
 }
 }
 } catch (Exception e) {
 }
 return null;
}
</code></pre>

blocks|key|1870976|text|String+locale+=+context.getResources().getConfiguration().locale.getCountry();+|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1870977|已弃用。改用下面的代码：|unstyled|1870978|Locale+locale;
if+(Build.VERSION.SDK_INT+>=+Build.VERSION_CODES.N)+{
++++locale+=+context.getResources().getConfiguration().getLocales().get(0);
}+else+{
++++locale+=+context.getResources().getConfiguration().locale;
}|1870979|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|L|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|I|3|-4|5|F|7|N|8|@]|9|@]|A|$]]]|J|$]]

<pre><code>String locale = context.getResources().getConfiguration().locale.getCountry(); 
</code></pre>

Is deprecated. Use this instead:

<pre><code>Locale locale;
if (Build.VERSION.SDK_INT &gt;= Build.VERSION_CODES.N) {
 locale = context.getResources().getConfiguration().getLocales().get(0);
} else {
 locale = context.getResources().getConfiguration().locale;
}
</code></pre>

blocks|key|1870985|text|对于某些设备，如果默认语言设置不同(印度人可以设置英语(美国))，则|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1870986|context.getResources().getConfiguration().locale.getDisplayCountry();|code-block|syntax|javascript|1870987|将给出错误的值.So此方法不可靠|1870988|此外，TelephonyManager的getNetworkCountryIso()方法在没有SIM卡的设备(WIFI平板电脑)上不起作用。|1870989|如果设备没有SIM卡，我们可以使用时区来获取国家/地区。对于像印度这样的国家，这种方法是可行的。|1870990|用于检查国家/地区是否为印度的示例代码(时区id+:亚洲/加尔各答)|1870991|private+void+checkCountry()+{


++++TelephonyManager+telMgr+=+(TelephonyManager)+getSystemService(Context.TELEPHONY_SERVICE);
++++if+(telMgr+==+null)
++++++++return;

++++int+simState+=+telMgr.getSimState();

++++switch+(simState)+{
++++++++//if+sim+is+not+available+then+country+is+find+out+using+timezone+id
++++++++case+TelephonyManager.SIM_STATE_ABSENT:
++++++++++++TimeZone+tz+=+TimeZone.getDefault();
++++++++++++String+timeZoneId+=+tz.getID();
++++++++++++if+(timeZoneId.equalsIgnoreCase(Constants.INDIA_TIME_ZONE_ID))+{
+++++++++++++++//do+something
++++++++++++}+else+{
+++++++++++++++//do+something
++++++++++++}
++++++++++++break;

++++++++++++//if+sim+is+available+then+telephony+manager+network+country+info+is+used
++++++++case+TelephonyManager.SIM_STATE_READY:

+++++++++++TelephonyManager+tm+=+(TelephonyManager)+this.getSystemService(Context.TELEPHONY_SERVICE);
++++++++++++if+(tm+!=+null)+{
++++++++++++++++String+countryCodeValue+=+tm.getNetworkCountryIso();
++++++++++++++++//check+if+the+network+country+code+is+"in"
++++++++++++++++if+(countryCodeValue.equalsIgnoreCase(Constants.NETWORK_INDIA_CODE))+{
+++++++++++++++++++//do+something
++++++++++++++++}

++++++++++++++++else+{
+++++++++++++++++++//do+something
++++++++++++++++}

++++++++++++}
++++++++++++break;

++++}
}|1870992|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|V|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|W|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|P|5|D|7|Y|8|@]|9|@]|A|$E|F]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

For some devices, if the default language is set different (an indian can set English (US)) then 

<pre><code>context.getResources().getConfiguration().locale.getDisplayCountry();
</code></pre>

will give wrong value .So this method is non reliable

Also, getNetworkCountryIso() method of TelephonyManager will not work on devices which don't have SIM card (WIFI tablets).

If a device doesn't have SIM then we can use Time Zone to get the country. For countries like India, this method will work

sample code used to check the country is India or not 
(Time zone id : asia/calcutta)

<pre><code>private void checkCountry() {


 TelephonyManager telMgr = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
 if (telMgr == null)
 return;

 int simState = telMgr.getSimState();

 switch (simState) {
 //if sim is not available then country is find out using timezone id
 case TelephonyManager.SIM_STATE_ABSENT:
 TimeZone tz = TimeZone.getDefault();
 String timeZoneId = tz.getID();
 if (timeZoneId.equalsIgnoreCase(Constants.INDIA_TIME_ZONE_ID)) {
 //do something
 } else {
 //do something
 }
 break;

 //if sim is available then telephony manager network country info is used
 case TelephonyManager.SIM_STATE_READY:

 TelephonyManager tm = (TelephonyManager) this.getSystemService(Context.TELEPHONY_SERVICE);
 if (tm != null) {
 String countryCodeValue = tm.getNetworkCountryIso();
 //check if the network country code is "in"
 if (countryCodeValue.equalsIgnoreCase(Constants.NETWORK_INDIA_CODE)) {
 //do something
 }

 else {
 //do something
 }

 }
 break;

 }
}
</code></pre>

An android mobile actually does know quite well where it is - but is there a way of retrieving the country by something like a country code?

No need of knowing the exact GPS position - the country is sufficient 

I first thought of using the time zone, but actually I need more information than that since it makes a difference if the location is New York or Lima.

The background of the question: I have an application that uses temperature values, and I'd like to set the default unit either to Celsius or Fahrenheit, depending on whether the location is US or outside

Where am I? - Get country

android手机实际上非常清楚它在哪里--但是有没有一种方法可以通过国家代码之类的东西来检索国家呢？不需要知道确切的GPS位置-国家就足够了。我首先想到的是使用时区，但实际上我需要更多的信息，因为无论地点是纽约还是利马，这都是有区别的。问题的背景:我有一个使用温度值的应用程序，我想根据位置是美国还是国外，将默认单位设...

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