私は何日も試みており、問題を解決するために Web を検索していますが、関連する情報が見つかりません。
CustomCell を使用して、userLocation から UITableView の注釈までの距離を計算しようとしています。
NSLOG で計算された距離を取得できますが、tableView ではすべてのセルで 0.0km を取得しています。
ここで何が間違っているのか誰にもわかりますか?
- (void)viewDidLoad
{
[super viewDidLoad];
self.mapView.delegate = self;
[self startLocationServices];
NSString *path = [[NSBundle mainBundle] pathForResource:@"points" ofType:@"plist"];
NSArray *anns = [NSArray arrayWithContentsOfFile:path];
for(NSMutableDictionary *note in anns) {
double doubleLatitude = [[note objectForKey:@"sculptureLatitudeKey"] doubleValue];
double doubleLongitude = [[note objectForKey:@"sculptureLongitudeKey"] doubleValue];
Annotation* myAnnotation = [[Annotation alloc] init];
CLLocationCoordinate2D theCoordinate;
theCoordinate.latitude = doubleLatitude;
theCoordinate.longitude = doubleLongitude;
myAnnotation.coordinate = theCoordinate;
myAnnotation.title = [note objectForKey:@"sculptureNameKey"];
myAnnotation.subtitle = [note objectForKey:@"sculptureAddressKey"];
myAnnotation.sculptureIdKey = [note objectForKey:@"sculptureIdKey"];
[self.mapView addAnnotation:myAnnotation];
}
}
- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation
{
MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(userLocation.coordinate, 5000, 5000);
[self.mapView setRegion:[self.mapView regionThatFits:region] animated:YES];
}
- (void)startLocationServices
{
if (self.locationManager == nil)
{
self.locationManager = [CLLocationManager new];
}
[self.locationManager setDelegate:self];
[self.locationManager setDesiredAccuracy:kCLLocationAccuracyBest];
[self.locationManager setDistanceFilter:kCLDistanceFilterNone];
[self.locationManager startUpdatingLocation];
}
- (void)stopLocationServices
{
[self.locationManager stopUpdatingLocation];
[self.locationManager setDelegate:nil];
}
- (void)locationManager:(CLLocationManager *)manager
didUpdateToLocation:(CLLocation *)newLocation
fromLocation:(CLLocation *)oldLocation
{
for (Annotation *annotation in self.mapView.annotations)
{
CLLocationCoordinate2D coord = [annotation coordinate];
CLLocation *annLocation = [[CLLocation alloc] initWithLatitude:coord.latitude longitude:coord.longitude];
CLLocationDistance calculatedDistance = [annLocation distanceFromLocation:newLocation];
NSLog(@"Nice distance:%.1f m\n", calculatedDistance);
}
}
私の NSLOG はこれを示しています.plistには3つの注釈しかありません
2013-02-13 16:46:14.736 TalkingSculpture[91833:c07] Nice distance:762.1 m
2013-02-13 16:46:14.736 TalkingSculpture[91833:c07] Nice distance:98.8 m
2013-02-13 16:46:14.736 TalkingSculpture[91833:c07] Nice distance:2704.3 m
2013-02-13 16:46:14.737 TalkingSculpture[91833:c07] Nice distance:0.0 m
私のcustomCell.h
#import <UIKit/UIKit.h>
@interface customCell : UITableViewCell
@property (weak, nonatomic) IBOutlet UILabel *customTitle;
@property (weak, nonatomic) IBOutlet UILabel *customSubTitle;
@property (weak, nonatomic) IBOutlet UILabel *distanceLabel;
@end
そして customCell.m
#import "customCell.h"
@implementation customCell
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
// Initialization code
}
return self;
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
@end
テーブル ビューで、cellForRowAtIndexPath に入力します
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"Cell";
customCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
if (!cell)
{
cell = [[customCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
cell.customTitle.text = [[self.locationsArray objectAtIndex:indexPath.row] valueForKey:@"sculptureNameKey"];
cell.customSubTitle.text = [[self.locationsArray objectAtIndex:indexPath.row] valueForKey:@"sculptureAddressKey"];
cell.distanceLabel.text = [NSString stringWithFormat:@"%.1f km\n", _calulatedDistance];
return cell;
}