blocks|key|1226364|text|你可以使用谷歌地理编码for+this。它就像通过HTTP获取数据并对其进行解析一样简单(它可以返回JSON+KML、XML、CSV)。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1226365|entityMap|0|LINK|mutability|MUTABLE|url|http://code.google.com/apis/maps/documentation/geocoding/#GeocodingRequests^0|B|8|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

You can use Google Geocoding <a href="http://code.google.com/apis/maps/documentation/geocoding/#GeocodingRequests" rel="noreferrer">for this</a>. It is as simple as getting data through HTTP and parsing it (it can return JSON KML, XML, CSV).

blocks|key|1441231|text|下面的方法实现了您所要求的功能。您需要插入您的Google地图密钥才能正常工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1441232|-+(CLLocationCoordinate2D)+geoCodeUsingAddress:(NSString+*)address{

++++int+code+=+-1;
++++int+accuracy+=+-1;
++++float+latitude+=+0.0f;
++++float+longitude+=+0.0f;
++++CLLocationCoordinate2D+center;

++++//+setup+maps+api+key
++++NSString+*+MAPS_API_KEY+=+@"YOUR+GOOGLE+MAPS+KEY+HERE";

++++NSString+*escaped_address+=++[address+stringByAddingPercentEscapesUsingEncoding:+NSUTF8StringEncoding];
++++//+Contact+Google+and+make+a+geocoding+request
++++NSString+*requestString+=+[NSString+stringWithFormat:@"http://maps.google.com/maps/geo?q=%25@&output=csv&oe=utf8&key=%25@&sensor=false&gl=it",+escaped_address,+MAPS_API_KEY];
++++NSURL+*url+=+[NSURL+URLWithString:requestString];

++++NSString+*result+=+[NSString+stringWithContentsOfURL:+url+encoding:+NSUTF8StringEncoding+error:NULL];
++++++++if(result){
++++++++++++//+we+got+a+result+from+the+server,+now+parse+it
++++++++++++NSScanner+*scanner+=+[NSScanner+scannerWithString:result];
++++++++++++[scanner+scanInt:&code];
++++++++++++if(code+==+200){
++++++++++++++++//+everything+went+off+smoothly
++++++++++++++++[scanner+scanString:@","+intoString:nil];
++++++++++++++++[scanner+scanInt:&accuracy];

++++++++++++++++//NSLog(@"Accuracy:+%25d",+accuracy);

++++++++++++++++[scanner+scanString:@","+intoString:nil];
++++++++++++++++[scanner+scanFloat:&latitude];
++++++++++++++++[scanner+scanString:@","+intoString:nil];
++++++++++++++++[scanner+scanFloat:&longitude];


++++++++++++++++center.latitude+=+latitude;
++++++++++++++++center.longitude+=+longitude;

++++++++++++++++return+center;


++++++++++++}
++++++++++++else{
++++++++++++++++//+the+server+answer+was+not+the+one+we+expected
++++++++++++++++UIAlertView+*alert+=+[[[UIAlertView+alloc]+
+++++++++++++++++++++++++++++++++++++++initWithTitle:+@"Warning"+
+++++++++++++++++++++++++++++++++++++++message:@"Connection+to+Google+Maps+failed"
+++++++++++++++++++++++++++++++++++++++delegate:nil
+++++++++++++++++++++++++++++++++++++++cancelButtonTitle:nil+
+++++++++++++++++++++++++++++++++++++++otherButtonTitles:@"OK",+nil]+autorelease];

++++++++++++++++[alert+show];

++++++++++++++++center.latitude+=+0.0f;
++++++++++++++++center.longitude+=+0.0f;

++++++++++++++++return+center;


++++++++++++}

++++++++}
++++++++else{
++++++++++++//+no+result+back+from+the+server
++++++++++++UIAlertView+*alert+=+[[[UIAlertView+alloc]+
+++++++++++++++++++++++++++++++++++initWithTitle:+@"Warning"+
+++++++++++++++++++++++++++++++++++message:@"Connection+to+Google+Maps+failed"
+++++++++++++++++++++++++++++++++++delegate:nil
+++++++++++++++++++++++++++++++++++cancelButtonTitle:nil+
+++++++++++++++++++++++++++++++++++otherButtonTitles:@"OK",+nil]+autorelease];

++++++++++++[alert+show];

++++++++++++center.latitude+=+0.0f;
++++++++++++center.longitude+=+0.0f;

++++++++++++return+center;
++++++++}

++++}

++++++++center.latitude+=+0.0f;
++++++++center.longitude+=+0.0f;

++++++++return+center;

}|code-block|syntax|javascript|1441233|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

The following method does what you asked for. You need to insert your Google maps key for this to work correctly.

<pre><code>- (CLLocationCoordinate2D) geoCodeUsingAddress:(NSString *)address{

 int code = -1;
 int accuracy = -1;
 float latitude = 0.0f;
 float longitude = 0.0f;
 CLLocationCoordinate2D center;

 // setup maps api key
 NSString * MAPS_API_KEY = @"YOUR GOOGLE MAPS KEY HERE";

 NSString *escaped_address = [address stringByAddingPercentEscapesUsingEncoding: NSUTF8StringEncoding];
 // Contact Google and make a geocoding request
 NSString *requestString = [NSString stringWithFormat:@"http://maps.google.com/maps/geo?q=%@&amp;output=csv&amp;oe=utf8&amp;key=%@&amp;sensor=false&amp;gl=it", escaped_address, MAPS_API_KEY];
 NSURL *url = [NSURL URLWithString:requestString];

 NSString *result = [NSString stringWithContentsOfURL: url encoding: NSUTF8StringEncoding error:NULL];
 if(result){
 // we got a result from the server, now parse it
 NSScanner *scanner = [NSScanner scannerWithString:result];
 [scanner scanInt:&amp;code];
 if(code == 200){
 // everything went off smoothly
 [scanner scanString:@"," intoString:nil];
 [scanner scanInt:&amp;accuracy];

 //NSLog(@"Accuracy: %d", accuracy);

 [scanner scanString:@"," intoString:nil];
 [scanner scanFloat:&amp;latitude];
 [scanner scanString:@"," intoString:nil];
 [scanner scanFloat:&amp;longitude];


 center.latitude = latitude;
 center.longitude = longitude;

 return center;


 }
 else{
 // the server answer was not the one we expected
 UIAlertView *alert = [[[UIAlertView alloc] 
 initWithTitle: @"Warning" 
 message:@"Connection to Google Maps failed"
 delegate:nil
 cancelButtonTitle:nil 
 otherButtonTitles:@"OK", nil] autorelease];

 [alert show];

 center.latitude = 0.0f;
 center.longitude = 0.0f;

 return center;


 }

 }
 else{
 // no result back from the server
 UIAlertView *alert = [[[UIAlertView alloc] 
 initWithTitle: @"Warning" 
 message:@"Connection to Google Maps failed"
 delegate:nil
 cancelButtonTitle:nil 
 otherButtonTitles:@"OK", nil] autorelease];

 [alert show];

 center.latitude = 0.0f;
 center.longitude = 0.0f;

 return center;
 }

 }

 center.latitude = 0.0f;
 center.longitude = 0.0f;

 return center;

}
</code></pre>

blocks|key|1226482|text|还有CoreGeoLocation，它将功能封装在一个框架(Mac)或静态库(iPhone)中。支持通过Google或Yahoo进行查找，如果您更喜欢其中之一。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1226483|https://github.com/thekarladam/CoreGeoLocation|offset|length|1226484|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|1A|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

There's also CoreGeoLocation, which wraps up the functionality in a framework (Mac) or static library (iPhone). Supports lookups through Google or Yahoo, if you have a preference for one over the other.

<a href="https://github.com/thekarladam/CoreGeoLocation" rel="nofollow noreferrer">https://github.com/thekarladam/CoreGeoLocation</a>

blocks|key|1441366|text|对于谷歌地图密钥解决方案，正如上面所描述的那样，不是必须让应用程序免费吗？根据谷歌条款与条件:+9.1免费，公众可访问您的地图API实现。用户必须免费访问您的Maps+API实现。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1441367|在SDK+3.0中的map工具包中，使用sdk很容易做到这一点。请参阅苹果的手册或关注：https://developer.apple.com/documentation/mapkit|offset|length|1441368|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.apple.com/documentation/mapkit^0|0|18|1C|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

For the google map key solution, as described by unforgiven above, doesn't one has to make the app free? As per google terms &amp; conditions: 9.1 Free, Public Accessibility to Your Maps API Implementation. Your Maps API Implementation must be generally accessible to users without charge. 

With map kit in sdk 3.0 this is easily done using the SDK. See apple's manuals or follow: <a href="https://developer.apple.com/documentation/mapkit" rel="nofollow noreferrer">https://developer.apple.com/documentation/mapkit</a>

blocks|key|1441416|text|这是一个更新的，更紧凑的，使用最新的v3应用编程接口的不可宽恕的代码版本：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1441417|-+(CLLocationCoordinate2D)+geoCodeUsingAddress:(NSString+*)address
{
++++double+latitude+=+0,+longitude+=+0;
++++NSString+*esc_addr+=++[address+stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
++++NSString+*req+=+[NSString+stringWithFormat:@"http://maps.google.com/maps/api/geocode/json?sensor=false&address=%25@",+esc_addr];
++++NSString+*result+=+[NSString+stringWithContentsOfURL:[NSURL+URLWithString:req]+encoding:NSUTF8StringEncoding+error:NULL];
++++if+(result)+{
++++++++NSScanner+*scanner+=+[NSScanner+scannerWithString:result];
++++++++if+([scanner+scanUpToString:@"\"lat\"+:"+intoString:nil]+&&+[scanner+scanString:@"\"lat\"+:"+intoString:nil])+{
++++++++++++[scanner+scanDouble:&latitude];
++++++++++++if+([scanner+scanUpToString:@"\"lng\"+:"+intoString:nil]+&&+[scanner+scanString:@"\"lng\"+:"+intoString:nil])+{
++++++++++++++++[scanner+scanDouble:&longitude];
++++++++++++}
++++++++}
++++}
++++CLLocationCoordinate2D+center;
++++center.latitude+=+latitude;
++++center.longitude+=+longitude;
++++return+center;
}|code-block|syntax|javascript|1441418|它假设"location“的坐标在前面，例如在"viewport”的坐标之前，因为它只接受在"lng“和"lat”键下找到的第一个坐标。如果你担心这里使用的这个简单的扫描技术，请随意使用合适的JSON扫描器(例如SBJSON)。|1441419|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Here's an updated, more compact, version of unforgiven's code, which uses the latest v3 API:

<pre><code>- (CLLocationCoordinate2D) geoCodeUsingAddress:(NSString *)address
{
 double latitude = 0, longitude = 0;
 NSString *esc_addr = [address stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
 NSString *req = [NSString stringWithFormat:@"http://maps.google.com/maps/api/geocode/json?sensor=false&amp;address=%@", esc_addr];
 NSString *result = [NSString stringWithContentsOfURL:[NSURL URLWithString:req] encoding:NSUTF8StringEncoding error:NULL];
 if (result) {
 NSScanner *scanner = [NSScanner scannerWithString:result];
 if ([scanner scanUpToString:@"\"lat\" :" intoString:nil] &amp;&amp; [scanner scanString:@"\"lat\" :" intoString:nil]) {
 [scanner scanDouble:&amp;latitude];
 if ([scanner scanUpToString:@"\"lng\" :" intoString:nil] &amp;&amp; [scanner scanString:@"\"lng\" :" intoString:nil]) {
 [scanner scanDouble:&amp;longitude];
 }
 }
 }
 CLLocationCoordinate2D center;
 center.latitude = latitude;
 center.longitude = longitude;
 return center;
}
</code></pre>

It makes the assumption that the coordinates for "location" come first, e.g. before those for "viewport", because it just takes the first coords it finds under the "lng" and "lat" keys. Feel free to use a proper JSON scanner (e.g. SBJSON) if you are worried about this simple scanning technique used here.

blocks|key|1226612|text|这里有一个类似的解决方案，用于从Google获取纬度和经度。注意:此示例使用SBJson库，您可以在github上找到：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1226613|%2B+(CLLocationCoordinate2D)+geoCodeUsingAddress:+(NSString+*)+address
{
++++CLLocationCoordinate2D+myLocation;+

//+--+modified+from+the+stackoverflow+page+-+we+use+the+SBJson+parser+instead+of+the+string+scanner+--

++++++++NSString+++++++*esc_addr+=+[address+stringByAddingPercentEscapesUsingEncoding:+NSUTF8StringEncoding];
++++++++NSString++++++++++++*req+=+[NSString+stringWithFormat:+@"http://maps.google.com/maps/api/geocode/json?sensor=false&address=%25@",+esc_addr];
++++NSDictionary+*googleResponse+=+[[NSString+stringWithContentsOfURL:+[NSURL+URLWithString:+req]+encoding:+NSUTF8StringEncoding+error:+NULL]+JSONValue];

++++NSDictionary++++*resultsDict+=+[googleResponse+valueForKey:++@"results"];+++//+get+the+results+dictionary
++++NSDictionary+++*geometryDict+=+[+++resultsDict+valueForKey:+@"geometry"];+++//+geometry+dictionary+within+the++results+dictionary
++++NSDictionary+++*locationDict+=+[++geometryDict+valueForKey:+@"location"];+++//+location+dictionary+within+the+geometry+dictionary

//+--+you+should+be+able+to+strip+the+latitude+&+longitude+from+google's+location+information+(while+understanding+what+the+json+parser+returns)+--

++++DLog+(@"--+returning+latitude+&+longitude+from+google+--");

++++NSArray+*latArray+=+[locationDict+valueForKey:+@"lat"];+NSString+*latString+=+[latArray+lastObject];+++++//+(one+element)+array+entries+provided+by+the+json+parser
++++NSArray+*lngArray+=+[locationDict+valueForKey:+@"lng"];+NSString+*lngString+=+[lngArray+lastObject];+++++//+(one+element)+array+entries+provided+by+the+json+parser

+++++myLocation.latitude+=+[latString+doubleValue];+++++//+the+json+parser+uses+NSArrays+which+don't+support+"doubleValue"
++++myLocation.longitude+=+[lngString+doubleValue];

++++return+myLocation;
}|code-block|syntax|javascript|1226614|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Here's a similar solution for obtaining the latitude and longitude from Google. Note: This example uses the SBJson library, which you can find on github:

<pre><code>+ (CLLocationCoordinate2D) geoCodeUsingAddress: (NSString *) address
{
 CLLocationCoordinate2D myLocation; 

// -- modified from the stackoverflow page - we use the SBJson parser instead of the string scanner --

 NSString *esc_addr = [address stringByAddingPercentEscapesUsingEncoding: NSUTF8StringEncoding];
 NSString *req = [NSString stringWithFormat: @"http://maps.google.com/maps/api/geocode/json?sensor=false&amp;address=%@", esc_addr];
 NSDictionary *googleResponse = [[NSString stringWithContentsOfURL: [NSURL URLWithString: req] encoding: NSUTF8StringEncoding error: NULL] JSONValue];

 NSDictionary *resultsDict = [googleResponse valueForKey: @"results"]; // get the results dictionary
 NSDictionary *geometryDict = [ resultsDict valueForKey: @"geometry"]; // geometry dictionary within the results dictionary
 NSDictionary *locationDict = [ geometryDict valueForKey: @"location"]; // location dictionary within the geometry dictionary

// -- you should be able to strip the latitude &amp; longitude from google's location information (while understanding what the json parser returns) --

 DLog (@"-- returning latitude &amp; longitude from google --");

 NSArray *latArray = [locationDict valueForKey: @"lat"]; NSString *latString = [latArray lastObject]; // (one element) array entries provided by the json parser
 NSArray *lngArray = [locationDict valueForKey: @"lng"]; NSString *lngString = [lngArray lastObject]; // (one element) array entries provided by the json parser

 myLocation.latitude = [latString doubleValue]; // the json parser uses NSArrays which don't support "doubleValue"
 myLocation.longitude = [lngString doubleValue];

 return myLocation;
}
</code></pre>

blocks|key|1226637|text|更新版本，使用iOS+JSON：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1226638|-+(CLLocationCoordinate2D)getLocation:(NSString+*)address+{

++++CLLocationCoordinate2D+center;
++++NSString+*esc_addr+=++[address+stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
++++NSString+*req+=+[NSString+stringWithFormat:@"http://maps.google.com/maps/api/geocode/json?sensor=false&address=%25@",+esc_addr];
++++NSData+*responseData+=+[[NSData+alloc]+initWithContentsOfURL:
++++++++++++++++++++++++[NSURL+URLWithString:req]];++++NSError+*error;
++++NSMutableDictionary+*responseDictionary+=+[NSJSONSerialization
+++++++++++++++++++++++++++++++++++++++++++++++JSONObjectWithData:responseData
+++++++++++++++++++++++++++++++++++++++++++++++options:nil
+++++++++++++++++++++++++++++++++++++++++++++++error:&error];
++++if(+error+)
++++{
++++++++NSLog(@"%25@",+[error+localizedDescription]);
++++++++center.latitude+=+0;
++++++++center.longitude+=+0;
++++++++return+center;
++++}
++++else+{
++++++++NSArray+*results+=+(NSArray+*)+responseDictionary[@"results"];
++++++++NSDictionary+*firstItem+=+(NSDictionary+*)+[results+objectAtIndex:0];
++++++++NSDictionary+*geometry+=+(NSDictionary+*)+[firstItem+objectForKey:@"geometry"];
++++++++NSDictionary+*location+=+(NSDictionary+*)+[geometry+objectForKey:@"location"];
++++++++NSNumber+*lat+=+(NSNumber+*)+[location+objectForKey:@"lat"];
++++++++NSNumber+*lng+=+(NSNumber+*)+[location+objectForKey:@"lng"];

++++++++center.latitude+=+[lat+doubleValue];
++++++++center.longitude+=+[lng+doubleValue];
++++++++return+center;
++++}
}|code-block|syntax|javascript|1226639|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Update version, using iOS JSON:

<pre><code>- (CLLocationCoordinate2D)getLocation:(NSString *)address {

 CLLocationCoordinate2D center;
 NSString *esc_addr = [address stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
 NSString *req = [NSString stringWithFormat:@"http://maps.google.com/maps/api/geocode/json?sensor=false&amp;address=%@", esc_addr];
 NSData *responseData = [[NSData alloc] initWithContentsOfURL:
 [NSURL URLWithString:req]]; NSError *error;
 NSMutableDictionary *responseDictionary = [NSJSONSerialization
 JSONObjectWithData:responseData
 options:nil
 error:&amp;error];
 if( error )
 {
 NSLog(@"%@", [error localizedDescription]);
 center.latitude = 0;
 center.longitude = 0;
 return center;
 }
 else {
 NSArray *results = (NSArray *) responseDictionary[@"results"];
 NSDictionary *firstItem = (NSDictionary *) [results objectAtIndex:0];
 NSDictionary *geometry = (NSDictionary *) [firstItem objectForKey:@"geometry"];
 NSDictionary *location = (NSDictionary *) [geometry objectForKey:@"location"];
 NSNumber *lat = (NSNumber *) [location objectForKey:@"lat"];
 NSNumber *lng = (NSNumber *) [location objectForKey:@"lng"];

 center.latitude = [lat doubleValue];
 center.longitude = [lng doubleValue];
 return center;
 }
}
</code></pre>

blocks|key|1226656|text|-+(void)viewDidLoad
{
++++app=(AppDelegate+*)[[UIApplication+sharedApplication]+delegate];
++++NSLog(@"%25@",+app.str_address);


++++NSLog(@"internet+connect");

++++NSString+*Str_address=_txt_zipcode.text;

++++double+latitude1+=+0,+longitude1+=+0;
++++NSString+*esc_addr+=++[+Str_address+stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
++++NSString+*req+=+[NSString+stringWithFormat:@"http://maps.google.com/maps/api/geocode/json?sensor=false&address=%25@",+esc_addr];
++++NSString+*result+=+[NSString+stringWithContentsOfURL:[NSURL+URLWithString:req]+encoding:NSUTF8StringEncoding+error:NULL];
++++if+(result)
++++{
++++++++NSScanner+*scanner+=+[NSScanner+scannerWithString:result];
++++++++if+([scanner+scanUpToString:@"\"lat\"+:"+intoString:nil]+&&+[scanner+scanString:@"\"lat\"+:"+intoString:nil])
++++++++{
++++++++++++[scanner+scanDouble:&latitude1];
++++++++++++if+([scanner+scanUpToString:@"\"lng\"+:"+intoString:nil]+&&+[scanner+scanString:@"\"lng\"+:"+intoString:nil])
++++++++++++{
++++++++++++++++[scanner+scanDouble:&longitude1];
++++++++++++}
++++++++}
++++}


++++//in+#.hfile
+++//+CLLocationCoordinate2D+lat;
+++//+CLLocationCoordinate2D+lon;
+++//+float+address_latitude;
+++//+float+address_longitude;


++++lat.latitude=latitude1;
++++lon.longitude=longitude1;

++++address_latitude=lat.latitude;
++++address_longitude=lon.longitude;

}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1226657|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>- (void)viewDidLoad
{
 app=(AppDelegate *)[[UIApplication sharedApplication] delegate];
 NSLog(@"%@", app.str_address);


 NSLog(@"internet connect");

 NSString *Str_address=_txt_zipcode.text;

 double latitude1 = 0, longitude1 = 0;
 NSString *esc_addr = [ Str_address stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
 NSString *req = [NSString stringWithFormat:@"http://maps.google.com/maps/api/geocode/json?sensor=false&amp;address=%@", esc_addr];
 NSString *result = [NSString stringWithContentsOfURL:[NSURL URLWithString:req] encoding:NSUTF8StringEncoding error:NULL];
 if (result)
 {
 NSScanner *scanner = [NSScanner scannerWithString:result];
 if ([scanner scanUpToString:@"\"lat\" :" intoString:nil] &amp;&amp; [scanner scanString:@"\"lat\" :" intoString:nil])
 {
 [scanner scanDouble:&amp;latitude1];
 if ([scanner scanUpToString:@"\"lng\" :" intoString:nil] &amp;&amp; [scanner scanString:@"\"lng\" :" intoString:nil])
 {
 [scanner scanDouble:&amp;longitude1];
 }
 }
 }


 //in #.hfile
 // CLLocationCoordinate2D lat;
 // CLLocationCoordinate2D lon;
 // float address_latitude;
 // float address_longitude;


 lat.latitude=latitude1;
 lon.longitude=longitude1;

 address_latitude=lat.latitude;
 address_longitude=lon.longitude;

}
</code></pre>

blocks|key|1226666|text|func+geoCodeUsingAddress(address:+NSString)+->+CLLocationCoordinate2D+{
++++var+latitude:+Double+=+0
++++var+longitude:+Double+=+0
++++let+addressstr+:+NSString+=+"http://maps.google.com/maps/api/geocode/json?sensor=false&address=\(address)"+as+NSString
++++let+urlStr++=+addressstr.addingPercentEncoding(withAllowedCharacters:+.urlQueryAllowed)
++++let+searchURL:+NSURL+=+NSURL(string:+urlStr!+as+String)!
++++do+{
++++++++let+newdata+=+try+Data(contentsOf:+searchURL+as+URL)
++++++++if+let+responseDictionary+=+try+JSONSerialization.jsonObject(with:+newdata,+options:+[])+as?+NSDictionary+{
++++++++++++print(responseDictionary)
++++++++++++let+array+=+responseDictionary.object(forKey:+"results")+as!+NSArray
++++++++++++let+dic+=+array[0]+as!+NSDictionary
++++++++++++let+locationDic+=+(dic.object(forKey:+"geometry")+as!+NSDictionary).object(forKey:+"location")+as!+NSDictionary
++++++++++++latitude+=+locationDic.object(forKey:+"lat")+as!+Double
++++++++++++longitude+=+locationDic.object(forKey:+"lng")+as!+Double
++++++++}}+catch+{
++++}
++++var+center+=+CLLocationCoordinate2D()
++++center.latitude+=+latitude
++++center.longitude+=+longitude
++++return+center
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1226667|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>func geoCodeUsingAddress(address: NSString) -&gt; CLLocationCoordinate2D {
 var latitude: Double = 0
 var longitude: Double = 0
 let addressstr : NSString = "http://maps.google.com/maps/api/geocode/json?sensor=false&amp;address=\(address)" as NSString
 let urlStr = addressstr.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)
 let searchURL: NSURL = NSURL(string: urlStr! as String)!
 do {
 let newdata = try Data(contentsOf: searchURL as URL)
 if let responseDictionary = try JSONSerialization.jsonObject(with: newdata, options: []) as? NSDictionary {
 print(responseDictionary)
 let array = responseDictionary.object(forKey: "results") as! NSArray
 let dic = array[0] as! NSDictionary
 let locationDic = (dic.object(forKey: "geometry") as! NSDictionary).object(forKey: "location") as! NSDictionary
 latitude = locationDic.object(forKey: "lat") as! Double
 longitude = locationDic.object(forKey: "lng") as! Double
 }} catch {
 }
 var center = CLLocationCoordinate2D()
 center.latitude = latitude
 center.longitude = longitude
 return center
}
</code></pre>

How can I get latitude and longitude from a full address (street, city, etc.) input by the user, using the iPhone SDK 3.x?

Get latitude/longitude from address

JSON

如何从完整地址(街道、城市等)获取纬度和经度用户输入，使用iPhone SDK3.x？

问从地址获取纬度/经度
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