MapView可以与标注多个批注，如何通过标题下一个视图 [英] MapView with multiple annotations with callouts, how to pass title to next view
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问题描述
我有一个图形页面，用户preSS砸脚。可能有多个引脚在同一时间，每个标注视图都有推到当它是pressed堆栈一个新的视图标注。我想要做的就是通过注解视图的标题标签中的第二个观点。
下面是code，其中我把针：
- （无效）preSS：（UILong pressGestureRecognizer *）识别
{
CGPoint接触点= [识别locationInView：世界观];
CLLocationCoordinate2D touchMapCoordinate = [世界观convertPoint：接触点toCoordinateFromView：世界观]; 地理codeR = [[CLGeo codeR页头]初始化];
CLLocation *位置= [[CLLocation页头] initWithCoordinate：touchMapCoordinate
海拔：CLLocationDistanceMax
horizontalAccuracy：kCLLocationAccuracyBest
verticalAccuracy：kCLLocationAccuracyBest
时间戳：[NSDate的日期]];
[地理codeR reverseGeo codeLocation：位置
completionHandler：^（* NSArray的地标，NSError *错误）{
的NSLog（@reverseGeo codeR：completionHandler：被称为）;
如果（错误）{
的NSLog（@地理codeR失败，出现错误：％@，错误）;
}其他{
CLPlacemark *地点= [标objectAtIndex：0];
地址= [的NSString stringWithFormat：@％@％@％@％@，[地方subThoroughfare]，[地方通途]，[地方局部性]，[地方administrativeArea]]; 如果（UIGestureRecognizerStateBegan == [识别状态]）{
addressPin = [[MapPoint的页头] initWithCoordinate：touchMapCoordinate
标题：地址]。
[世界观addAnnotation：addressPin];
}
}
}];
}
这里是code，其中我所说的第二种观点：
- （空）的MapView：（*的MKMapView）的MapView annotationView：（MKAnnotationView *）查看calloutAccessoryControlTapped：（UIControl *）控制
{
PinViewController * pinViewController = [[PinViewController的alloc]初始化];
[个体经营passValues]
[自我navigationController] pushViewController：pinViewController动画：是];
}
解决方案
您可以覆盖MKAnnotation（例如MyLocation）和MyLocation.h文件中声明
＃进口＆LT;基金会/ Foundation.h＆GT;
＃进口＆LT; MapKit / MapKit.h＆GT;@interface MyLocation：NSObject的＆LT; MKAnnotation＆GT; {
*的NSNumber identyfier;
* NSString的_name;
* NSString的_address;
CLLocationCoordinate2D _coordinate;
}@属性（复制）的NSString *名称;
@属性（复制）的NSString *地址;
@属性（复制）的NSNumber * identyfier;
@属性（非原子，只读）CLLocationCoordinate2D协调; - （ID）initWithName：（* NSString的）名称地址：（* NSString的）地址
坐标：（CLLocationCoordinate2D）坐标identyfier：（NSNumber的*）identyfier;
@end
在MyLocation.m文件：
＃进口MyLocation.h@implementation MyLocation@synthesize名= _name;
@synthesize地址= _address;
@synthesize坐标= _coordinate;
@synthesize identyfier = _identyfier; - （ID）initWithName：（* NSString的）名称地址：（* NSString的）地址
坐标：（CLLocationCoordinate2D）坐标identyfier：（NSNumber的*）identyfier {
如果（（个体经营= [超级的init]））{
_name = [名副本];
_address = [复制地址]
_coordinate =协调;
_identyfier = identyfier;
}
返回自我;
}
在你的地图视图在声明注释使用此methos：
MyLocation *引脚= [[MyLocation页头] initWithName：place.name地址：place.address坐标：coordinate2D identyfier：SOME_ID];
因此，例如在地图中的委托：
- （MKAnnotationView *）的MapView：（*的MKMapView）的MapView viewForAnnotation：（ID＆LT; MKAnnotation＆GT;）{注解
您可以使用：
（（MyLocation *）注释）.identyfier
检查选择的注释（当然你也可以使用MyLocation类不同的变量）
I have a mapView where users press to drop a pin. There may be multiple pins at one time, and each annotation view has a callout that pushes a new view to the stack when it is pressed. What I want to do is pass the title of the annotation view to the label in the second view.
Here is the code where I drop the pin:
-(void)press:(UILongPressGestureRecognizer *)recognizer
{
CGPoint touchPoint = [recognizer locationInView:worldView];
CLLocationCoordinate2D touchMapCoordinate = [worldView convertPoint:touchPoint toCoordinateFromView:worldView];
geocoder = [[CLGeocoder alloc]init];
CLLocation *location = [[CLLocation alloc]initWithCoordinate:touchMapCoordinate
altitude:CLLocationDistanceMax
horizontalAccuracy:kCLLocationAccuracyBest
verticalAccuracy:kCLLocationAccuracyBest
timestamp:[NSDate date]];
[geocoder reverseGeocodeLocation:location
completionHandler:^(NSArray *placemarks, NSError *error) {
NSLog(@"reverseGeocoder:completionHandler: called");
if (error) {
NSLog(@"Geocoder failed with error: %@", error);
} else {
CLPlacemark *place = [placemarks objectAtIndex:0];
address = [NSString stringWithFormat:@"%@ %@, %@ %@", [place subThoroughfare], [place thoroughfare], [place locality], [place administrativeArea]];
if (UIGestureRecognizerStateBegan == [recognizer state]) {
addressPin = [[MapPoint alloc]initWithCoordinate:touchMapCoordinate
title:address];
[worldView addAnnotation:addressPin];
}
}
}];
}
And here is the code where I call the second view:
-(void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
PinViewController *pinViewController = [[PinViewController alloc]init];
[self passValues];
[[self navigationController]pushViewController:pinViewController animated:YES];
}
解决方案
You can override MKAnnotation (for example MyLocation)and declare in MyLocation.h file
#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>
@interface MyLocation : NSObject <MKAnnotation> {
NSNumber *identyfier;
NSString *_name;
NSString *_address;
CLLocationCoordinate2D _coordinate;
}
@property (copy) NSString *name;
@property (copy) NSString *address;
@property (copy) NSNumber *identyfier;
@property (nonatomic, readonly) CLLocationCoordinate2D coordinate;
- (id)initWithName:(NSString*)name address:(NSString*)address
coordinate:(CLLocationCoordinate2D)coordinate identyfier:(NSNumber *) identyfier;
@end
in MyLocation.m file:
#import "MyLocation.h"
@implementation MyLocation
@synthesize name = _name;
@synthesize address = _address;
@synthesize coordinate = _coordinate;
@synthesize identyfier = _identyfier;
- (id)initWithName:(NSString*)name address:(NSString*)address
coordinate:(CLLocationCoordinate2D)coordinate identyfier:(NSNumber *)identyfier {
if ((self = [super init])) {
_name = [name copy];
_address = [address copy];
_coordinate = coordinate;
_identyfier = identyfier;
}
return self;
}
In your map view when you declare annotation use this methos:
MyLocation *pin = [[MyLocation alloc] initWithName:place.name address:place.address coordinate:coordinate2D identyfier:some_id];
So for example in your map delegate:
- (MKAnnotationView *) mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation {
you can use:
((MyLocation *)annotation).identyfier
to check selected annotation (of course you can use different variables in MyLocation class)
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