iPhone应用程序：计算Google地图中路径的距离

Question

I am developing an iPhone app. here in my App I have included Google maps.I am showing the highlighted path in map.

Now my Question is how to calculate distance between two point as per path as Apple"s native map App is showing routes with distance.

Thanks in Advance.

Answer 1

    CLLocation *loc1 = [[CLLocation alloc] initWithLatitude:oldLocation.coordinate.latitude longitude:oldLocation.coordinate.longitude];
    CLLocation *loc2 = [[CLLocation alloc] initWithLatitude:newLocation.coordinate.latitude longitude:newLocation.coordinate.latitude];

    CLLocationDistance distance = ([loc2 distanceFromLocation:loc1]) * 0.000621371192;

Answer 2

This may help you.

When running in the simulator, Core Location assigns a fixed set of coordinate values to this property. You must run your application on an iOS-based device to get real location values.

CLLocation *loc2 = [[CLLocation alloc] initWithLatitude:newLocation.coordinate.latitude longitude:newLocation.coordinate.latitude];