问题描述
我正在尝试使用以下代码（餐厅，公园，聚会场所和商店）在我的mapView上显示多个位置数组。当我打开应用程序时，并不是所有数组内的地址都显示在我的mapView上（即使返回了所有数据）-例如有时，只有“商店”和“公园”注释数组会显示在我的地图上，但是看不到饭店（即使成功返回了所有数组的数据）。如果我关闭并重新打开该应用程序，有时公园会显示在地图上，但没有其他显示。知道为什么会发生这种情况以及如何解决吗？代码更新如下。永远都在这里！
注意：ParksAnnotation，RestAnnotation，meetupAnn和StoreAnnotation都是MKPointAnnotation类。
更新（10/13/2020）：我尝试在检索和地理编码“商店”坐标的代码块下记录“地标”。看起来好像好像在填充self.storeData一样，在创建的NSDictionary storeFields也是如此。就是说，当我登录“地标”时，即使已填充storeFields [@“ address”]，它也不返回任何坐标。其他代码块似乎做得很好（例如，检索Meet Ups和检索Parks）。因此，Meet Ups，Restaurants和Parks批注看起来很好，但是并未填充所有Stores批注。当我启动应用程序时，至少会随机发生至少一种类型的注释（有时是缺少商店，有时是公园）。我一辈子都无法弄清为什么会这样。
请参见以下代码：
MapViewController.m
#import "StoreAnnotation.h"
#import "ParksAnnotation.h"
#import "RestAnnotation.h"
#import "meetupAnn.h"
@interface MapViewController ()
@end
@implementation MapViewController
-(void)viewWillAppear:(BOOL)animated {
NSMutableDictionary *viewParamsallUsers1 = [NSMutableDictionary new];
[viewParamsallUsers1 setValue:@"hosted_meet_ups" forKey:@"view_name"];
[DIOSView viewGet:viewParamsallUsers1 success:^(AFHTTPRequestOperation *operation,id responseObject) {
self.meetUps = [responseObject mutableCopy];
int index = 0;
for (NSMutableDictionary *allMeetups in self.meetUps) {
NSString *location = allMeetups[@"where"];
NSString *userNames = allMeetups[@"node_title"];
NSString *userBio = allMeetups[@"body"];
self.alertMessage = [allMeetups[@"node_title"] mutableCopy];
CLGeocoder *geocoderFriend = [[CLGeocoder alloc] init];
[geocoderFriend geocodeAddressString:location
completionHandler:^(NSArray* placemarks,NSError* error){
if (placemarks && placemarks.count > 0) {
CLPlacemark *topResult = [placemarks objectAtIndex:0];
MKPlacemark *placemark = [[MKPlacemark alloc] initWithPlacemark:topResult];
MKCoordinateRegion region = self.mapView.region;
region.span.longitudeDelta /= 150.0;
region.span.latitudeDelta /= 150.0;
meetupAnn *meet = [[meetupAnn alloc] init];
meet.coordinate = placemark.coordinate;
meet.title = userNames;
meet.subtitle = userBio;
meet.index = index; // Store index here.
[self.mapView addAnnotation:meet];
}
}
];
index = index + 1;
}
} failure:^(AFHTTPRequestOperation *operation,NSError *error) {
NSLog(@"Failure: %@",[error localizedDescription]);
}];
/// GRAB ALL RESTAURANT LOCATIONS ///
NSMutableDictionary *viewParams6 = [NSMutableDictionary new];
[viewParams6 setValue:@"restaurants" forKey:@"view_name"];
[DIOSView viewGet:viewParams6 success:^(AFHTTPRequestOperation *operation,id responseObject) {
self.neighbourhoodData = [responseObject mutableCopy];
int index = 0;
for (NSMutableDictionary *multiplelocationsFriend in self.neighbourhoodData) {
NSString *location = multiplelocationsFriend[@"address"];
NSString *userNames = multiplelocationsFriend[@"node_title"];
NSString *ampRemoved = [userNames stringByReplacingOccurrencesOfString:@"amp;" withString:@""];
NSString *userBio = multiplelocationsFriend[@"body"];
self.x3 = multiplelocationsFriend[@"x3"];
CLGeocoder *geocoderFriend = [[CLGeocoder alloc] init];
[geocoderFriend geocodeAddressString:location
completionHandler:^(NSArray* placemarks,NSError* error){
if (placemarks && placemarks.count > 0) {
CLPlacemark *topResult = [placemarks objectAtIndex:0];
MKPlacemark *placemark = [[MKPlacemark alloc] initWithPlacemark:topResult];
MKCoordinateRegion region = self.mapView.region;
region.span.longitudeDelta /= 150.0;
region.span.latitudeDelta /= 150.0;
RestAnnotation *point1 = [[RestAnnotation alloc] init];
point1.coordinate = placemark.coordinate;
point1.title = ampRemoved;
point1.subtitle = userBio;
point1.index = index; // Store index here.
[self.mapView addAnnotation:point1];
}
}
];
index = index + 1;
}
} failure:^(AFHTTPRequestOperation *operation,NSError *error) {
NSLog(@"Failure: %@",[error localizedDescription]);
}];
NSString *test = self.areaName;
NSLog(@"SHOW TEST %@",test);
/// GRAB ALL STORE LOCATIONS ///
NSMutableDictionary *viewParams7 = [NSMutableDictionary new];
[viewParams7 setValue:@"stores" forKey:@"view_name"];
[DIOSView viewGet:viewParams7 success:^(AFHTTPRequestOperation *operation,id responseObject) {
self.storesData = [responseObject mutableCopy];
int index = 0;
for (NSMutableDictionary *storeFields in self.storesData) {
NSString *location = storeFields[@"address"];
NSString *userNames = storeFields[@"node_title"];
NSString *ampRemoved = [userNames stringByReplacingOccurrencesOfString:@"amp;" withString:@""];
NSString *userBio = storeFields[@"body"];
self.x3 = storeFields[@"x3"];
CLGeocoder *geocoderFriend = [[CLGeocoder alloc] init];
[geocoderFriend geocodeAddressString:location
completionHandler:^(NSArray* placemarks,NSError* error){
if (placemarks && placemarks.count > 0) {
CLPlacemark *topResult = [placemarks objectAtIndex:0];
MKPlacemark *placemark = [[MKPlacemark alloc] initWithPlacemark:topResult];
MKCoordinateRegion region = self.mapView.region;
region.span.longitudeDelta /= 150.0;
region.span.latitudeDelta /= 150.0;
StoreAnnotation *point2 = [[StoreAnnotation alloc] init];
point2.coordinate = placemark.coordinate;
point2.title = ampRemoved;
point2.subtitle = userBio;
point2.index = index; // Store index here.
[self.mapView addAnnotation:point2];
}
}
];
index = index + 1;
}
} failure:^(AFHTTPRequestOperation *operation,[error localizedDescription]);
}];
/// GRAB ALL PARKS LOCATIONS ///
NSMutableDictionary *viewParams8 = [NSMutableDictionary new];
[viewParams8 setValue:@"parks" forKey:@"view_name"];
[DIOSView viewGet:viewParams8 success:^(AFHTTPRequestOperation *operation,id responseObject) {
self.parksData = [responseObject mutableCopy];
int index = 0;
for (NSMutableDictionary *parkFields in self.parksData) {
// NSLog(@"WHAT IS IN FRIENDS %@",self.friendData);
NSString *location = parkFields[@"address"];
NSString *userNames = parkFields[@"node_title"];
NSString *ampRemoved = [userNames stringByReplacingOccurrencesOfString:@"amp;" withString:@""];
NSString *userBio = parkFields[@"body"];
self.x3 = parkFields[@"x3"];
CLGeocoder *geocoderFriend = [[CLGeocoder alloc] init];
[geocoderFriend geocodeAddressString:location
completionHandler:^(NSArray* placemarks,NSError* error){
if (placemarks && placemarks.count > 0) {
CLPlacemark *topResult = [placemarks objectAtIndex:0];
MKPlacemark *placemark = [[MKPlacemark alloc] initWithPlacemark:topResult];
MKCoordinateRegion region = self.mapView.region;
region.span.longitudeDelta /= 150.0;
region.span.latitudeDelta /= 150.0;
ParksAnnotation *point3 = [[ParksAnnotation alloc] init];
point3.coordinate = placemark.coordinate;
point3.title = ampRemoved;
point3.subtitle = userBio;
point3.index = index; // Store index here.
[self.mapView addAnnotation:point3];
}
}
];
index = index + 1;
}
} failure:^(AFHTTPRequestOperation *operation,NSError *error) {
NSLog(@"Failure: %@",[error localizedDescription]);
}];
}
- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation
{
static dispatch_once_t onceToken; dispatch_once(&onceToken,^{
MKCoordinateRegion mapRegion;
mapRegion.center = mapView.userLocation.coordinate;
mapRegion.span.latitudeDelta = 0.5;
mapRegion.span.longitudeDelta = 0.5;
[mapView setRegion:mapRegion animated: YES];
[self.locationManager stopUpdatingLocation];
self.locationManager = nil;
MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(userLocation.coordinate,8000,8000);
[mapView setRegion:[mapView regionThatFits:region] animated:YES];
[mapView addAnnotations:[mapView annotations]];
});
}
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation{
if([annotation isKindOfClass:[StoreAnnotation class]]) {
static NSString *identifier = @"stores";
MKAnnotationView *storesView = (MKAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:identifier];
if(storesView == nil) {
storesView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier];
storesView.displayPriority = MKFeatureDisplayPriorityRequired;
storesView.canShowCallout = YES;
storesView.image = [UIImage imageNamed:@"storeann4.png"];
}
else {
storesView.annotation = annotation;
}
return storesView;
}
if([annotation isKindOfClass:[meetupAnn class]]) {
static NSString *identifier = @"meetUps";
MKAnnotationView *pulsingView = (MKAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:identifier];
if(pulsingView == nil) {
pulsingView.displayPriority = MKFeatureDisplayPriorityRequired;
pulsingView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier];
pulsingView.image = [UIImage imageNamed:@"meetupbeacon.png"];
pulsingView.canShowCallout = YES;
}
else {
pulsingView.annotation = annotation;
}
return pulsingView;
}
if([annotation isKindOfClass:[ParksAnnotation class]]) {
static NSString *identifier = @"parks";
MKAnnotationView *parksView = (MKAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:identifier];
if(parksView == nil) {
parksView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier];
parksView.displayPriority = MKFeatureDisplayPriorityRequired;
parksView.image = [UIImage imageNamed:@"parksann.png"];
parksView.canShowCallout = YES;
}
else {
parksView.annotation = annotation;
}
return parksView;
}
if([annotation isKindOfClass:[RestAnnotation class]]) {
static NSString *identifier = @"rests";
MKAnnotationView *restView = (MKAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:identifier];
if(restView == nil) {
restView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier];
restView.displayPriority = MKFeatureDisplayPriorityRequired;
restView.image = [UIImage imageNamed:@"restann.png"];
restView.canShowCallout = YES;
}
else {
restView.annotation = annotation;
}
return restView;
}
解决方法
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