地图视图中两个位置的 Mapkit 路线不适用于印度经纬度？

Question

这是我的代码：

工作：

CLLocationCoordinate2D sourceCoords = CLLocationCoordinate2DMake(37.7833, -122.4167);//san fransisco
MKPlacemark *sourcePlacemark = [[MKPlacemark alloc] initWithCoordinate:sourceCoords addressDictionary:nil];
MKMapItem *source = [[MKMapItem alloc] initWithPlacemark:sourcePlacemark];

// Make the destination location
CLLocationCoordinate2D destinationCoords = CLLocationCoordinate2DMake(34.0500, -118.2500);//los angeles
MKPlacemark *destinationPlacemark = [[MKPlacemark alloc] initWithCoordinate:destinationCoords addressDictionary:nil];
MKMapItem *destination = [[MKMapItem alloc] initWithPlacemark:destinationPlacemark];

不工作：

CLLocationCoordinate2D sourceCoords = CLLocationCoordinate2DMake(13.0441, +80.1831);
MKPlacemark *sourcePlacemark = [[MKPlacemark alloc] initWithCoordinate:sourceCoords addressDictionary:nil];
MKMapItem *source = [[MKMapItem alloc] initWithPlacemark:sourcePlacemark];


 Make the destination location   CLLocationCoordinate2D destinationCoords = CLLocationCoordinate2DMake(13.0545, +80.2114);
 MKPlacemark *destinationPlacemark = [[MKPlacemark alloc] initWithCoordinate:destinationCoords addressDictionary:nil];
 MKMapItem *destination = [[MKMapItem alloc] initWithPlacemark:destinationPlacemark];

地图视图中未显示折线。

Answer 1

Apple 地图不支持印度的路线。在印度，您必须使用 Google 地图才能找到方向。 you can check map feature availability here