ICode9

精准搜索请尝试: 精确搜索
首页 > 其他分享> 文章详细

iOS定位添加大头针

2019-09-09 23:01:38  阅读:299  来源: 互联网

标签:subtitle title 大头针 self iOS pinAnnotation 添加 mapView


原文链接:https://my.oschina.net/zyboy/blog/617431

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

本站声明: 1. iCode9 技术分享网(下文简称本站)提供的所有内容,仅供技术学习、探讨和分享;
2. 关于本站的所有留言、评论、转载及引用,纯属内容发起人的个人观点,与本站观点和立场无关;
3. 关于本站的所有言论和文字,纯属内容发起人的个人观点,与本站观点和立场无关;
4. 本站文章均是网友提供,不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属;如您发现该文章侵犯了您的权益,可联系我们第一时间进行删除;
5. 本站为非盈利性的个人网站,所有内容不会用来进行牟利,也不会利用任何形式的广告来间接获益,纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。

专注分享技术,共同学习,共同进步。侵权联系[81616952@qq.com]

Copyright (C)ICode9.com, All Rights Reserved.

ICode9版权所有