CLLocationCoordinate2D和NSMutableArray

Question

我有两个NSMutableArray，第一个保存某个位置的纬度，第二个保存经度。然后，我想在地图上看到这个带有标记的位置。这段代码显示了地图上的一个点，但我在NSMutableArray上有几个点。我该怎么做呢？有没有人帮帮我？

- (void)viewDidLoad
{
[super viewDidLoad];

MKCoordinateRegion region;
MKCoordinateSpan span;
span.latitudeDelta=0.2;
span.longitudeDelta=0.2;


CLLocationCoordinate2D location;

location.latitude = 40.182533;
location.longitude = 29.066868;

region.span=span;
region.center=location;

if(addAnnotation != nil) {
    [mapView removeAnnotation:addAnnotation];
    [addAnnotation release];
    addAnnotation = nil;
}

addAnnotation = [[AddressAnnotation alloc] initWithCoordinate:location];
[mapView addAnnotation:addAnnotation];

[mapView setRegion:region animated:TRUE];
[mapView regionThatFits:region];

// Do any additional setup after loading the view from its nib.

}

Answer 1

您需要为每个经度创建注释，并添加到mapview。假设后面的数组在平衡和排序中，算法可以像下面这样进行。

Loop through your lat or lon array

   CLLocationCoordinate2D location;

   location.latitude = latArray[index];
   location.longitude = lonArray[index];

   addAnnotation = [[AddressAnnotation alloc] initWithCoordinate:location];
   [mapView addAnnotation:addAnnotation];

Loop ends