Question

在对CLGeocoder非常失望之后，我决定改用GoogleMaps API。

我使用AFNetwork设计了如下呼叫：

    AFHTTPClient *new = [[AFHTTPClient alloc] initWithBaseURL:[NSURL URLWithString:@"http://maps.googleapis.com/"]];

    NSDictionary *dict = [[NSDictionary alloc] initWithObjects:[NSArray arrayWithObjects:@"thorsgade",@"true", nil] forKeys:[NSArray arrayWithObjects:@"address",@"sensor", nil]];
    NSMutableURLRequest *req = [new requestWithMethod:@"GET" path:@"maps/api/geocode/json" parameters:dict];

AFJSONRequestOperation *call = [AFJSONRequestOperation JSONRequestOperationWithRequest:req success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
            NSArray *geos = [JSON objectForKey:@"results"];
  DLog(@"Got result : '%@' %@ from  %@ %@ %@",JSON,geos,[NSHTTPURLResponse localizedStringForStatusCode:response.statusCode],response.allHeaderFields,request.URL.description);

        } failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {
            DLog(@"Failed %@ %@",error.localizedDescription,request.URL.description);
        }];

[call start];

我得到了这样的反馈：

得到结果：'（null）'（null）来自无错误{ “Cache-Control”=“public，max-age = 86400”; “Content-Encoding”= gzip; “内容长度”= 1603; “Content-Type”=“application / json; charset = UTF-8”; 日期=“星期五，2012年12月7日08:51:58 GMT”; Expires =“星期六，2012年12月8日08:51:58 GMT”; Server = mafe; Vary =“接受语言”; “X-Frame-Options”= SAMEORIGIN; “X-XSS-Protection”=“1; mode = block”; } http://maps.googleapis.com/maps/api/geocode/json?sensor=true&address=thorsgade

空结果，但没有错误。内容在标头中被识别为JSON，但原始JSON为空。

令人讨厌的是，如果我在浏览器中打开http://maps.googleapis.com/maps/api/geocode/json?sensor=true&address=thorsgade，我会得到很多结果。

到目前为止，我已尝试过：

轻弹传感器booleon true / false。
假设用户代理是常规的狩猎。
使用POST代替GET。

没有运气......

Answer 1

如果问题仍然存在，我建议改为使用MKNetworkKit

这是我的解决方案 -

<强> GoogleGeocodeApi.h

//GoogleGeocodeApi.h
#import <Foundation/Foundation.h>
#import "MKNetworkEngine.h"

typedef void (^JsonResponseBlock)(NSDictionary *);
typedef void (^ErrorBlock)(NSError* error);

@interface GoogleGeocodeApi : MKNetworkEngine

-(MKNetworkOperation*) geocodeWithAddress: (NSString *) address
                             onCompletion:(JsonResponseBlock) completionBlock
                                  onError:(ErrorBlock) errorBlock;

@end

<强> GoogleGeocodeApi.m

//GoogleGeocodeApi.m
#import "GoogleGeocodeApi.h"

@implementation GoogleGeocodeApi

-(id)init
{
    if (self = [super initWithHostName:@"maps.googleapis.com" apiPath:@"maps/api/geocode" customHeaderFields:nil]) {

    }
    return self;
}

-(MKNetworkOperation*) geocodeWithAddress: (NSString *) address
                             onCompletion:(JsonResponseBlock) completionBlock
                                  onError:(ErrorBlock) errorBlock;
{
    MKNetworkOperation *op = [self operationWithPath:[NSString stringWithFormat:@"json?sensor=true&address=%@", address] params:nil httpMethod:@"GET"];
    [op onCompletion:^(MKNetworkOperation *completedOperation) {
        NSDictionary *responseJSON = [completedOperation responseJSON];
        if (responseJSON && [[responseJSON objectForKey:@"status"] isEqualToString:@"OK"]) {
            completionBlock(responseJSON);
        } else {
            NSDictionary* errorDictionary = @{NSLocalizedDescriptionKey :@"Google geocode failed!"};
            NSError *error = [NSError errorWithDomain:@"Failed response" code:100 userInfo:errorDictionary];
            errorBlock(error);
        }
    } onError:^(NSError* error) {
        errorBlock(error);
    }];

    [self enqueueOperation:op];

    return op;
}

代码中的某处

GoogleGeocodeApi *gma = [[GoogleGeocodeApi alloc] init];

    [gma geocodeWithAddress:@"thorsgade"
               onCompletion:^(NSDictionary *responseJSON) {
                   NSLog(@"Geocode succeeded: %@", responseJSON);
               } onError:^(NSError *error) {
                   NSLog(@"Geocode failed with error: %@", [error localizedDescription]);
               }];

AFNetwork和GoogleAPI返回NULL

1 个答案: