我正在尝试使用Instagrams Photo Map创建一张带有照片的地图。
照片地图:http://i.stack.imgur.com/B0wDa.jpg
如何将图像(从Parse加载)到注释,如上面的屏幕截图所示?
这就是我到目前为止所得到的: MapViewController.m
[PFGeoPoint geoPointForCurrentLocationInBackground:^(PFGeoPoint *geoPoint, NSError *error) {
PFQuery *query = [PFQuery queryWithClassName: @"HomePopulation"];
[query whereKey:@"geopoint" nearGeoPoint:geoPoint withinKilometers:3000];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) {
for (PFObject *object in objects) {
PFGeoPoint *thePoint = [object objectForKey:@"geopoint"];
latitude = thePoint.latitude;
longitude = thePoint.longitude;
NSLog(@" Hej %f, %f", latitude, longitude);
CLLocationCoordinate2D annotationCoordinate = CLLocationCoordinate2DMake(latitude, longitude);
Annotation *annotation = [[Annotation alloc] init];
annotation.coordinate = annotationCoordinate;
annotation.title = [object objectForKey:@"discovery"];
annotation.subtitle = [object objectForKey:@"location"];
PFFile *image = [object objectForKey:@"imageFile"];
annotation.imageView.file = image;
[annotation.imageView loadInBackground];
[self.theMap addAnnotation:annotation];
[self.theMap setCenterCoordinate:annotation.coordinate animated:YES];
[self setNeedsStatusBarAppearanceUpdate];
}
}
}];
}];
任何帮助表示赞赏。 马尔科
答案 0 :(得分:1)
在此讨论的帮助下:Custom annotations with same image
我出来了:
以下是代码:
MapViewController.h
#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>
#import <Parse/Parse.h>
@interface MapViewController : UIViewController <MKMapViewDelegate>
@property double latitude;
@property double longitude;
@end
MapViewController.m
- (void)viewDidLoad
{
[super viewDidLoad];
[self.navigationController setNavigationBarHidden:YES animated:YES];
self.theMap.delegate = self;
self.theMap.showsUserLocation = YES;
[PFGeoPoint geoPointForCurrentLocationInBackground:^(PFGeoPoint *geoPoint, NSError *error) {
PFQuery *query = [PFQuery queryWithClassName: @"HomePopulation"];
[query whereKey:@"geopoint" nearGeoPoint:geoPoint withinKilometers:1000];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) {
for (PFObject *object in objects) {
PFGeoPoint *thePoint = [object objectForKey:@"geopoint"];
latitude = thePoint.latitude;
longitude = thePoint.longitude;
NSLog(@" Hej %f, %f", latitude, longitude);
CLLocationCoordinate2D annotationCoordinate = CLLocationCoordinate2DMake(latitude, longitude);
Annotation *annotation = [[Annotation alloc] init];
annotation.coordinate = annotationCoordinate;
annotation.title = [object objectForKey:@"discovery"];
annotation.subtitle = [object objectForKey:@"location"];
annotation.objectID = object.objectId;
[self.theMap addAnnotation:annotation];
}
}
}];
}];
//[self.theMap reloadInputViews];
}
- (MKAnnotationView *) mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation
{
static NSString *identifier = @"theLocation";
if ([annotation isKindOfClass:[Annotation class]]) {
MKPinAnnotationView *annotationView = (MKPinAnnotationView *)[self.theMap dequeueReusableAnnotationViewWithIdentifier:identifier];
if (annotationView == nil) {
annotationView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier];
} else {
annotationView.annotation = annotation;
}
annotationView.enabled = YES;
//annotationView.canShowCallout = YES;
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(-40, -100, 100, 100)];
imageView.contentMode = UIViewContentModeScaleAspectFit;
NSString *id = [(Annotation *)annotationView.annotation objectID];
PFQuery *query = [PFQuery queryWithClassName:@"HomePopulation"];
[query getObjectInBackgroundWithId:[NSString stringWithFormat:@"%@", id] block:^(PFObject *object, NSError *error) {
PFFile *file = [object objectForKey:@"imageFile"];
[file getDataInBackgroundWithBlock:^(NSData *data, NSError *error) {
imageView.image = [UIImage imageWithData:data];
}];
}];
annotationView.image = [UIImage imageNamed:@"pointer"];
[annotationView addSubview:imageView];
return annotationView;
}
return nil;
}
Annotation.h
#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>
#import <Parse/Parse.h>
@interface Annotation : NSObject <MKAnnotation>
@property (nonatomic) CLLocationCoordinate2D coordinate;
@property (nonatomic, copy) NSString *title;
@property (nonatomic, copy) NSString *subtitle;
@property (nonatomic, copy) NSString *objectID;
@end