如何從API Google Maps地圖獲取響應？

我正在嘗試獲取Google Directions API的回覆。你能找到這個錯誤嗎？如何從API Google Maps地圖獲取響應？

NSString *str = [NSString stringWithFormat:@"%@origin=%f,%f&destination=%f,%f&key=%@",@"https://maps.googleapis.com/maps/api/directions/json?", 
        self.marker.position.latitude, 
        self.marker.position.longitude, 
        self.SecondMarker.position.latitude, 
        self.SecondMarker.position.longitude, 
        @"AIzaSyDhZvxehd6ZDKFOB67WIyeLpy7KITwRPw0"]; 
    //str = [str stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; 
    str = [str stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLFragmentAllowedCharacterSet]]; 
    NSURL *url = [NSURL URLWithString:str]; 
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url]; 
    //NSString *params = @""; 
    [request setHTTPMethod:@"POST"]; 
    //[request setHTTPBody:[params dataUsingEncoding:NSUTF8StringEncoding]]; 

    NSURLSession *session = [NSURLSession sharedSession]; 
    [[session dataTaskWithRequest:request 
       completionHandler:^(NSData *data, 
            NSURLResponse *response, 
            NSError *error) { 
        // handle response 
        if (!error && [data length]) { 
         NSLog(@"Reponse: %@",response); 
        } 
        else{ 
         NSLog(@"%@",error.description); 
        } 
       }] resume];

請推薦幾行代碼？

錯誤消息：

Reponse: <NSHTTPURLResponse: 0x60800002d480> { URL: https://maps.googleapis.com/maps/api/directions/json?origin=-33.860000,151.200000&destination=-34.224142,150.068408&key=AIzaSyDhZvxehd6ZDKFOB67WIyeLpy7KITwRPw0 
} {狀態碼：200，標頭{ 「緩存控制」= 「公衆，最大年齡= 86400」; 「內容編碼」= gzip; 「Content-Length」= 23856; 「Content-Type」=「application/json; charset = UTF-8」; 日期=「2017年4月25日星期二08:48:36 GMT」; Expires =「2017年4月26日星期三08:48:36 GMT」; Server = mafe; Vary =「Accept-Language」; 「alt-svc」=「quic = \」：443 \「; ma = 2592000; v = \」37,36,35 \「」; 「x-frame-options」= SAMEORIGIN; 「x-xss-protection」=「1; mode = block」; }}

來源

2017-04-25 Harjot Singh Panesar

添加您的錯誤信息。 – KKRocks

檢查編輯請 –

@HarjotSinghPanesar你沒有得到錯誤，而不是你正在得到響應，現在你需要訪問數據和序列化的JSON從它 –

嘗試這樣

NSString *str = [NSString stringWithFormat:@"%@origin=%f,%f&destination=%f,%f&key=%@",@"https://maps.googleapis.com/maps/api/directions/json?", 
        self.marker.position.latitude, 
        self.marker.position.longitude, 
        self.SecondMarker.position.latitude, 
        self.SecondMarker.position.longitude, 
        @"AIzaSyDhZvxehd6ZDKFOB67WIyeLpy7KITwRPw0"]; 

str = [str stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLFragmentAllowedCharacterSet]]; 
NSURL *url = [NSURL URLWithString:str]; 
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url]; 

[request addValue:@"application/json" forHTTPHeaderField:@"Content-Type"]; 
[request addValue:@"application/json" forHTTPHeaderField:@"Accept"]; 
[request setHTTPMethod:@"POST"]; 
NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration]; 
NSURLSession *session = [NSURLSession sessionWithConfiguration:configuration delegate:nil delegateQueue:nil]; 
[[session dataTaskWithRequest:request completionHandler:^(NSData *data,NSURLResponse *response,NSError *error) { 

       if (!error && [data length]) 
       { 
        NSLog(@"Reponse: %@",response); 

        NSError *e = nil; 
        NSDictionary *JSONarray = [NSJSONSerialization JSONObjectWithData: data options: NSJSONReadingMutableContainers error:&e]; 
        NSLog(@"Response dictionary is%@",JSONarray); 
       } 
       else 
       { 
        NSLog(@"%@",error.description); 
       } 
      }] resume];

來源

2017-04-25 09:37:41

如何從API Google Maps地圖獲取響應？

回答

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