iOS定位添加大头针
作者:互联网
地图结合的定位
1. 和单纯定位相同部分
iOS8+都必须征求用户的同意
2. 和单纯定位不同部分
a. 协议:MKMapViewDelegate (MapKit Framework)
b.类/控件:地图控件MKMapView
c. 定位的方式也不同: 通过地图视图的一个属性
细节:
a. 如果手动往storyboard中拖拽一个MKMapView, 需要手动导入MapKit Framework;
b. 如果用纯代码的方式添加MKMapView, a步骤省略
c. CLLocationManager对象声明一个属性,不会造成弹出框很快收回 (!!!!!)
viewController.m
#import "ViewController.h"
#import <MapKit/MapKit.h>
#import "TRAnnotation.h"
@interface ViewController ()<MKMapViewDelegate>
@property (weak, nonatomic) IBOutlet MKMapView *mapView;
//CLLocationManager
@property (nonatomic,strong) CLLocationManager *mgr;
//CLGeocoder
@property (nonatomic, strong) CLGeocoder *geocoder;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
self.mgr = [CLLocationManager new];
self.geocoder = [CLGeocoder new];
//征求用户的意见 (Info.plist)
[self.mgr requestWhenInUseAuthorization];
//设置代理
self.mapView.delegate = self;
//设置地图的属性
self.mapView.rotateEnabled = YES;
//设置地图的显示方式(卫星/卫星混合)
self.mapView.mapType = MKMapTypeStandard;
//执行定位操作
self.mapView.userTrackingMode = MKUserTrackingModeFollow;
}
#pragma mark --- MapView Delegate
- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation {
//使用反地理编码来获取用户位置对应的详细信息(国家/省)
[self.geocoder reverseGeocodeLocation:userLocation.location completionHandler:^(NSArray *placemarks, NSError *error) {
//使用placemark给定的信息,设置用户位置大头针的文本信息
CLPlacemark *placemark = [placemarks lastObject];
//title
userLocation.title = placemark.name;
//subtitle
userLocation.subtitle = placemark.locality;
}];
//显示地图
MKCoordinateSpan span = MKCoordinateSpanMake(0.5, 0.5);
MKCoordinateRegion region = MKCoordinateRegionMake(userLocation.location.coordinate, span);
[self.mapView setRegion:region animated:YES];
}
//地图拖拽的情况调用方法
- (void)mapView:(MKMapView *)mapView regionDidChangeAnimated:(BOOL)animated {
NSLog(@"span: %f; %f", self.mapView.region.span.latitudeDelta, self.mapView.region.span.longitudeDelta);
}
//自定义大头针必须实现的代理方法
//1.地图上有多少大头针,调用多少次
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation {
NSLog(@"自定义大头针方法");
//6.如果默认返回nil,当前的用户位置为默认的蓝色;其他的默认是红色的
// return nil;
//把用户位置所属的大头针类型排除在外
if ([annotation isKindOfClass:[MKUserLocation class]]) {
//当前的大头针对象annotation是用户的位置
return nil;//蓝色
}
//2.使用重用机制
//2.1 声明一个可重用的大头针identifier
static NSString *identifier = @"Annotation";
//2.2 从缓冲池中获取可重用的大头针对象,如果有,就直接放回
MKPinAnnotationView *pinAnnotation = (MKPinAnnotationView *)[self.mapView dequeueReusableAnnotationViewWithIdentifier:identifier];
//2.3 如果缓冲池中没有,再重现创建大头针对象
if (!pinAnnotation) {
//3.第一个参数必须nil(?????)
pinAnnotation = [[MKPinAnnotationView alloc] initWithAnnotation:nil reuseIdentifier:identifier];
//4.必须要设置一个显示弹出框的属性(否则title/subtitle无法显示)
pinAnnotation.canShowCallout = YES;
//设置大头针左右辅助视图
pinAnnotation.leftCalloutAccessoryView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"icon_classify_cafe"]];
pinAnnotation.rightCalloutAccessoryView = [[UISwitch alloc] init];
}
//设置pin大头针的属性(iOS9会多一个自定义颜色的属性)
pinAnnotation.pinColor = MKPinAnnotationColorPurple;
//7.大头针视图的动画和图片设置不能同时
// pinAnnotation.animatesDrop = YES;
//设置一个大头针的图片
pinAnnotation.image = [UIImage imageNamed:@"icon_classify_cafe"];
//5.将代理方法中的形参annotation赋值给pinAnnoation视图对象
pinAnnotation.annotation = annotation;
return pinAnnotation;
}
//手动添加两个大头针
- (IBAction)addAnnotation:(id)sender {
//创建两个自定义的大头针对象
TRAnnotation *firstAnnotation = [[TRAnnotation alloc] init];
TRAnnotation *secondAnnotation = [[TRAnnotation alloc] init];
//设置添加大头针的属性(位置/title文本/subtitle子文本)
firstAnnotation.coordinate = CLLocationCoordinate2DMake(39.875, 116.456);
firstAnnotation.title = @"iOS1506";
firstAnnotation.subtitle = @"Fighting";
secondAnnotation.coordinate = CLLocationCoordinate2DMake(39.879, 116.451);
secondAnnotation.title = @"iOS1506";
secondAnnotation.subtitle = @"AZAZA";
//添加到地图上
[self.mapView addAnnotation:firstAnnotation];
[self.mapView addAnnotation:secondAnnotation];
//设置地图显示的区域(中心/跨度)
MKCoordinateSpan span = MKCoordinateSpanMake(0.1, 0.1);
MKCoordinateRegion region = MKCoordinateRegionMake(secondAnnotation.coordinate, span);
[self.mapView setRegion:region animated:YES];
}
#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>
@interface TRAnnotation : NSObject <MKAnnotation>
//位置(required必须)
@property (nonatomic, assign) CLLocationCoordinate2D coordinate;
//title(optional可选)
@property (nonatomic, copy) NSString *title;
//subtitle(optional可选)
@property (nonatomic, copy) NSString *subtitle;
@end
添加自定义大头针的步骤(方式一)
1. 创建一个自定义的类(a.b.c)
2. 实现代理的方法
- (MKAnnotationView )mapView:(MKMapView )mapView viewForAnnotation:(id)annotation {}
3. 在第二步的代理方法要执行操作
a. 首先把用户大头针对应的类要排除
b. 其次要手动创建大头针的重用机制(和table view cell类似)
c. 从缓存池中获取的大头针视图转换类型MKPinAnnotationView
d. 设定大头针的属性(颜色、动画/图片)
#import "ViewController.h"
#import <MapKit/MapKit.h>
#import "TRAnnotation.h"
@interface ViewController ()<MKMapViewDelegate>
@property (weak, nonatomic) IBOutlet MKMapView *mapView;
//CLLocationManager
@property (nonatomic,strong) CLLocationManager *mgr;
//CLGeocoder
@property (nonatomic, strong) CLGeocoder *geocoder;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
self.mgr = [CLLocationManager new];
self.geocoder = [CLGeocoder new];
//征求用户的意见 (Info.plist)
[self.mgr requestWhenInUseAuthorization];
//设置代理
self.mapView.delegate = self;
//设置地图的属性
self.mapView.rotateEnabled = YES;
//设置地图的显示方式(卫星/卫星混合)
self.mapView.mapType = MKMapTypeStandard;
//执行定位操作
self.mapView.userTrackingMode = MKUserTrackingModeFollow;
}
#pragma mark --- MapView Delegate
- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation {
//使用反地理编码来获取用户位置对应的详细信息(国家/省)
[self.geocoder reverseGeocodeLocation:userLocation.location completionHandler:^(NSArray *placemarks, NSError *error) {
//使用placemark给定的信息,设置用户位置大头针的文本信息
CLPlacemark *placemark = [placemarks lastObject];
//title
userLocation.title = placemark.name;
//subtitle
userLocation.subtitle = placemark.locality;
}];
//显示地图
MKCoordinateSpan span = MKCoordinateSpanMake(0.5, 0.5);
MKCoordinateRegion region = MKCoordinateRegionMake(userLocation.location.coordinate, span);
[self.mapView setRegion:region animated:YES];
}
//地图拖拽的情况调用方法
- (void)mapView:(MKMapView *)mapView regionDidChangeAnimated:(BOOL)animated {
NSLog(@"span: %f; %f", self.mapView.region.span.latitudeDelta, self.mapView.region.span.longitudeDelta);
}
//自定义大头针必须实现的代理方法
//1.地图上有多少大头针,调用多少次
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation {
NSLog(@"自定义大头针方法");
//6.如果默认返回nil,当前的用户位置为默认的蓝色;其他的默认是红色的
// return nil;
//把用户位置所属的大头针类型排除在外
if ([annotation isKindOfClass:[MKUserLocation class]]) {
//当前的大头针对象annotation是用户的位置
return nil;//蓝色
}
//2.使用重用机制
//2.1 声明一个可重用的大头针identifier
static NSString *identifier = @"Annotation";
//2.2 从缓冲池中获取可重用的大头针对象,如果有,就直接放回
MKPinAnnotationView *pinAnnotation = (MKPinAnnotationView *)[self.mapView dequeueReusableAnnotationViewWithIdentifier:identifier];
//2.3 如果缓冲池中没有,再重现创建大头针对象
if (!pinAnnotation) {
//3.第一个参数必须nil(?????)
pinAnnotation = [[MKPinAnnotationView alloc] initWithAnnotation:nil reuseIdentifier:identifier];
//4.必须要设置一个显示弹出框的属性(否则title/subtitle无法显示)
pinAnnotation.canShowCallout = YES;
//设置大头针左右辅助视图
pinAnnotation.leftCalloutAccessoryView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"icon_classify_cafe"]];
pinAnnotation.rightCalloutAccessoryView = [[UISwitch alloc] init];
}
//设置pin大头针的属性(iOS9会多一个自定义颜色的属性)
pinAnnotation.pinColor = MKPinAnnotationColorPurple;
//7.大头针视图的动画和图片设置不能同时
// pinAnnotation.animatesDrop = YES;
//设置一个大头针的图片
pinAnnotation.image = [UIImage imageNamed:@"icon_classify_cafe"];
//5.将代理方法中的形参annotation赋值给pinAnnoation视图对象
pinAnnotation.annotation = annotation;
return pinAnnotation;
}
//手动添加两个大头针
- (IBAction)addAnnotation:(id)sender {
//创建两个自定义的大头针对象
TRAnnotation *firstAnnotation = [[TRAnnotation alloc] init];
TRAnnotation *secondAnnotation = [[TRAnnotation alloc] init];
//设置添加大头针的属性(位置/title文本/subtitle子文本)
firstAnnotation.coordinate = CLLocationCoordinate2DMake(39.875, 116.456);
firstAnnotation.title = @"iOS1506";
firstAnnotation.subtitle = @"Fighting";
secondAnnotation.coordinate = CLLocationCoordinate2DMake(39.879, 116.451);
secondAnnotation.title = @"iOS1506";
secondAnnotation.subtitle = @"AZAZA";
//添加到地图上
[self.mapView addAnnotation:firstAnnotation];
[self.mapView addAnnotation:secondAnnotation];
//设置地图显示的区域(中心/跨度)
MKCoordinateSpan span = MKCoordinateSpanMake(0.1, 0.1);
MKCoordinateRegion region = MKCoordinateRegionMake(secondAnnotation.coordinate, span);
[self.mapView setRegion:region animated:YES];
}
创建自定义大头针的方式二
1. 使用MKAnnotationView
2. 创建自定义大头针对象不同(添加一个图片属性)
3. 代理的实现逻辑不同
#import "ViewController.h"
#import <MapKit/MapKit.h>
#import "TRAnnotaion.h"
@interface ViewController ()<MKMapViewDelegate>
@property (weak, nonatomic) IBOutlet MKMapView *mapView;
//CLLocationManager
@property (nonatomic,strong) CLLocationManager *mgr;
//CLGeocoder
@property (nonatomic, strong) CLGeocoder *geocoder;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
self.mgr = [CLLocationManager new];
self.geocoder = [CLGeocoder new];
//征求用户的意见 (Info.plist)
[self.mgr requestWhenInUseAuthorization];
//设置代理
self.mapView.delegate = self;
//设置地图的属性
self.mapView.rotateEnabled = YES;
//设置地图的显示方式(卫星/卫星混合)
//执行定位操作
self.mapView.userTrackingMode = MKUserTrackingModeFollow;
}
#pragma mark --- MapView Delegate
- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation {
//使用反地理编码来获取用户位置对应的详细信息(国家/省)
[self.geocoder reverseGeocodeLocation:userLocation.location completionHandler:^(NSArray *placemarks, NSError *error) {
//使用placemark给定的信息,设置用户位置大头针的文本信息
CLPlacemark *placemark = [placemarks lastObject];
//title
userLocation.title = placemark.name;
//subtitle
userLocation.subtitle = placemark.locality;
}];
//显示地图
MKCoordinateSpan span = MKCoordinateSpanMake(0.5, 0.5);
MKCoordinateRegion region = MKCoordinateRegionMake(userLocation.location.coordinate, span);
[self.mapView setRegion:region animated:YES];
}
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation {
//把用户的位置对应的大头针排除
if ([annotation isKindOfClass:[MKUserLocation class]]) {
return nil;//蓝色圈
}
//重用机制
static NSString *identifier = @"Annotation";
//不用转换
MKAnnotationView *annotationView = [self.mapView dequeueReusableAnnotationViewWithIdentifier:identifier];
if (!annotationView) {
annotationView = [[MKAnnotationView alloc] initWithAnnotation:nil reuseIdentifier:identifier];
//显示title/subtitile属性
annotationView.canShowCallout = YES;
}
//方式二(MKAnnotionaView)和方式一(MKPinAnnotationView)的不同
TRAnnotaion *anno = (TRAnnotaion *)annotation;
annotationView.annotation = anno;
annotationView.image = anno.image;
return annotationView;
}
- (IBAction)addAnnotation:(id)sender {
//创建两个大头针对象
TRAnnotaion *firstAnnoation = [[TRAnnotaion alloc] init];
TRAnnotaion *secondAnnotion = [[TRAnnotaion alloc] init];
firstAnnoation.coordinate = CLLocationCoordinate2DMake(39.875, 116.342);
firstAnnoation.title = @"iOS1506";
firstAnnoation.subtitle = @"Fighting";
//不同
firstAnnoation.image = [UIImage imageNamed:@"icon_paopao_waterdrop_streetscape"];
secondAnnotion.coordinate = CLLocationCoordinate2DMake(39.877, 116.457);
secondAnnotion.title = @"iOS1506";
secondAnnotion.subtitle = @"AZAZA";
//不同
secondAnnotion.image = [UIImage imageNamed:@"icon_pin_floating"];
//添加到地图上; 设定地图的区域(中心/跨度)
[self.mapView addAnnotation:firstAnnoation];
[self.mapView addAnnotation:secondAnnotion];
MKCoordinateSpan span = MKCoordinateSpanMake(0.2, 0.2);
MKCoordinateRegion region = MKCoordinateRegionMake(firstAnnoation.coordinate, span);
[self.mapView setRegion:region animated:YES];
}
转载于:https://my.oschina.net/zyboy/blog/617431
标签:subtitle,title,大头针,self,iOS,pinAnnotation,添加,mapView 来源: https://blog.csdn.net/chunbo4007/article/details/100677727