Question

我所做的是：

我把相机放在经度和纬度上和同一位置的标记

我有两个问题 1）如何将它们置于当前位置 2）如何获得两点之间的路线

- (void)viewDidLoad
{
    [super viewDidLoad];

    // maps


    GMSCameraPosition *camera=[GMSCameraPosition cameraWithLatitude:40.714353 longitude:-74.005973 zoom:16];
    mapview=[GMSMapView mapWithFrame:CGRectMake(100.0, 100.0, 140.0, 210.0) camera:camera];
    mapview.myLocationEnabled=NO;
    self.view=mapview;
    GMSMarker *marker=[[GMSMarker alloc]init];
    marker.position=CLLocationCoordinate2DMake(40.714353, -74.005973);
    marker.title=@"chennai";
    marker.map=mapview;
    self.view=mapview;




    // Do any additional setup after loading the view, typically from a nib.
}

请帮帮我

Answer 1

您可以使用Google地图视图的 myLocation 属性获取当前位置。首先启用 myLocation 。

mapview.myLocationEnabled=YES;

然后将位置设为

NSLog(@"%f %f",myLocation.coordinate.latitude, myLocation.coordinate.longitude);
marker.position = CLLocationCoordinate2DMake(myLocation.coordinate.latitude, myLocation.coordinate.longitude);

如果您想获得两点之间的指示，请按
进行申请
http://maps.googleapis.com/maps/api/directions/output?parameters

参数为来源，目的地，传感器。参考文件here

-(IBAction)getDirection   {
    NSURL *url = [ NSURL URLWithString: @"URL_STRING"]; 
    NSURLRequest *req = [ NSURLRequest requestWithURL:url
                                      cachePolicy:NSURLRequestReloadIgnoringCacheData
                                  timeoutInterval:30.0 ];
    NSError *err;
    NSURLResponse *res;
    NSData *d = [ NSURLConnection sendSynchronousRequest:req
                                   returningResponse:&res
                                               error:&err ];
}

如何在GMSmaps中获取路线方向

1 个答案: