谷歌路线的网址返回“ZERO RESULTS”

Question

我已经按照本教程 - https://www.youtube.com/watch?v=AdV7bCWuDYg

了

尝试在地图上绘制路线，我确实成功发送了原点/目的地的纬度/经度。问题是它生成的URL。

我不断得到这个 http://maps.googleapis.com/maps/api/directions/json?&origin=37.661519,127.061106&destination=37.664185,127.062994&sensor=false

但据我所知，网址应以 | 45.566346,18.667512 之类的结尾。我不知道我做错了什么，因为教程声称它有效，而我认为它可以。

- (void)setDirectionsQuery:(NSDictionary *)query withSelector:(SEL)selector
          withDelegate:(id)delegate{
NSArray *waypoints = [query objectForKey:@"waypoints"];

NSLog(@"***waypoints : %@", waypoints);

NSString *origin = [waypoints objectAtIndex:0];
int waypointCount = [waypoints count];
int destinationPos = waypointCount -1;
NSString *destination = [waypoints objectAtIndex:destinationPos];
NSString *sensor = [query objectForKey:@"sensor"];
NSMutableString *url =
[NSMutableString stringWithFormat:@"%@&origin=%@&destination=%@&sensor=%@",
 kMDDirectionsURL,origin,destination, sensor];

if(waypointCount>2) {
    [url appendString:@"&waypoints=optimize:true"];
    int wpCount = waypointCount-2;
    for(int i=1;i<wpCount;i++){
        [url appendString: @"|"];
        [url appendString:[waypoints objectAtIndex:i]];
    }
}
url = [[url
       stringByAddingPercentEscapesUsingEncoding: NSASCIIStringEncoding]mutableCopy];
_directionsURL = [NSURL URLWithString:url];

NSLog(@"url : %@", url);

[self retrieveDirections:selector withDelegate:delegate];}

经过数小时的研究后，我在Google Directions页面上注意到，所需的网址格式与我使用过的网格格式略有不同，但仍然没有运气。

[NSMutableString stringWithFormat：@“％@ origin =％@＆amp; destination =％@＆amp; key = [my api key]，      kMDDirectionsURL，出发地，目的地];

Answer 1

您的网址应该有效，我将原点更改为旧金山并将目的地更改为Mountain View并且它可以正常工作：
http://maps.googleapis.com/maps/api/directions/json?&origin=san+francisco&destination=mountain+view&sensor=false

谷歌地图可能不知道如何从37.661519,127.061106到37.664185,127.062994