iOS中 百度地图详解 韩俊强的博文
需要准备工作按照下图引进类库
需要添加
添加的两个字符串为:NSLocationWhenInUseUsageDescription / NSLocationAlwaysUsageDescription
默认定位设置:
设置工作准备完毕上代码:
指示根视图:
[[UINavigationBar appearance] setBarTintColor:[UIColor colorWithRed:23/255.0 green:180/255.0 blue:237/255.0 alpha:1]];self.window.rootViewController = [MapViewController new];
MapViewController.m//设置需要的属性
#import "MapViewController.h"
#import <MapKit/MapKit.h>
#import "Mypoint.h"
#import <CoreLocation/CoreLocation.h>
@interface MapViewController ()<MKMapViewDelegate,CLLocationManagerDelegate>
@property (nonatomic, strong) MKMapView *mapView;
//经度
@property (nonatomic, strong) UITextField *longitudetext;
//纬度
@property (nonatomic, strong) UITextField *latitudeText;
//经度
@property (nonatomic, strong) UILabel *longitudeLabel;
//纬度
@property (nonatomic, strong) UILabel *latitudelabel;
//防止标注的button[
@property (nonatomic, strong) UIButton *button;
//地址输入
@property (nonatomic, strong) UITextField *destination;
//输入地址查询地图
@property (nonatomic, retain) UIButton *searchButton;
//可以获取设备当前的经纬度信息
@property (nonatomic, strong) CLLocationManager *locManager;
@end@implementation MapViewController
调用:
- (void)viewDidLoad {[super viewDidLoad];self.view.backgroundColor = [UIColor whiteColor];self.locManager = [[CLLocationManager alloc]init];//代理_locManager.delegate = self;//定位精度_locManager.desiredAccuracy = kCLLocationAccuracyBest;//定位频率,10米定位一次CLLocationDistance distance = 10.0;_locManager.distanceFilter = distance;//更新位置[_locManager requestAlwaysAuthorization];[self.locManager startUpdatingLocation];//查询两个地点之间的距离[self countDistance];//调用布置视图[self configureView];[self setMapView];
}
//布置视图
- (void)configureView{//经度self.longitudeLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 20, 40, 30)];self.longitudeLabel.text = @"经度";self.longitudetext = [[UITextField alloc]initWithFrame:CGRectMake(40, 20, 120, 30)];self.longitudetext.borderStyle = UITextBorderStyleRoundedRect;//纬度self.latitudelabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 50, 40, 30)];self.latitudelabel.text = @"纬度";self.latitudeText = [[UITextField alloc]initWithFrame:CGRectMake(40, 50, 120, 30)];self.latitudeText.borderStyle = UITextBorderStyleRoundedRect;//放置标注按钮self.button = [UIButton buttonWithType:(UIButtonTypeSystem)];self.button.frame = CGRectMake(30, 73, 100, 30);[self.button setTitle:@"放置标注" forState:(UIControlStateNormal)];[self.button addTarget:self action:@selector(annotationAction:) forControlEvents:(UIControlEventTouchUpInside)];//地址输入self.destination = [[UITextField alloc]initWithFrame:CGRectMake(200, 26, 100, 30)];self.destination.borderStyle = UITextBorderStyleRoundedRect;//查询按钮self.searchButton = [UIButton buttonWithType:(UIButtonTypeSystem)];self.searchButton.frame = CGRectMake(200, 46, 100, 30);[self.searchButton setTitle:@"查询" forState:(UIControlStateNormal)];[self.searchButton addTarget:self action:@selector(detailSearchAction:) forControlEvents:(UIControlEventTouchUpInside)];[self.view addSubview:self.button];[self.view addSubview:self.latitudelabel];[self.view addSubview:self.longitudeLabel];[self.view addSubview:self.longitudetext];[self.view addSubview:self.latitudeText];[self.view addSubview:self.searchButton];[self.view addSubview:self.destination];
}
- (void)countDistance{CLLocation *loc1 = [[CLLocation alloc]initWithLatitude:34 longitude:113];CLLocation *loc2 = [[CLLocation alloc]initWithLatitude:35 longitude:113];CLLocationDistance distance = [loc1 distanceFromLocation:loc2];NSLog(@"(%@) 和 (%@)的距离为: %f", loc1, loc2, distance);
}
#pragma mark - CLLocationManagerDelegate Methods
// 此方法会被频繁调用
- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations
{
// NSLog(@"didUpdateLocations---%lu", (unsigned long)locations.count);// 用来表示某个位置的地理信息, 比如经纬度, 海拔等等CLLocation *location = locations.lastObject;// location.coordinate.latitude 维度// location.coordinate.longitude 经度NSLog(@"经度 == %f, 维度 == %f", location.coordinate.longitude, location.coordinate.latitude);self.longitudetext.text = [NSString stringWithFormat:@"%f",location.coordinate.longitude];self.latitudeText.text = [NSString stringWithFormat:@"%f",location.coordinate.latitude];// 停止更新位置(不用定位服务时马上停止, 因为非常耗电)
// [manager stopUpdatingLocation];
}
//调出地图
- (void)setMapView{//创建地图视图,初始化参数//MKMapTypeStandard 显示街道和道路//MKMapTypeSatellite 显示卫星//MKMapTypeHybrid 显示混合地图self.mapView = [[MKMapView alloc]initWithFrame:CGRectMake(0, 100, 320, 460)];[self.mapView setMapType:MKMapTypeStandard];//显示用户当前的坐标,打开地图有相应的提示self.mapView.showsUserLocation = YES;//设置地图代理self.mapView.delegate = self;[self.view addSubview:self.mapView];
}
#pragma mark 根据输入的经纬度确定位置
//放置标注
//放置标注
- (void)annotationAction:(UIButton *)sender{//创建CLLocation 设置经纬度CLLocationCoordinate2D location = CLLocationCoordinate2DMake([[self.latitudeText text]floatValue], [[self.longitudetext text]floatValue] );//创建标题NSString *title = [NSString stringWithFormat:@"%f,%f",location.latitude,location.longitude];Mypoint *myPoint = [[Mypoint alloc]initWithCoordinate:location andTitle:title];//添加标注[self.mapView addAnnotation:myPoint];//放大到标注的位置MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(location, 0.01, 0.01);[self.mapView setRegion:region];[self showLocation];
}
//根据输入的经纬度显示位置
//根据输入的经纬度显示位置
- (void)showLocation{//创建CLLocation 设置经纬度CLLocationCoordinate2D location = CLLocationCoordinate2DMake([[self.latitudeText text]floatValue], [[self.longitudetext text]floatValue] );//放大到标注的位置MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(location, 0.01, 0.01);[self.mapView setRegion:region animated:YES];
}
#pragma mark 根据输入的地址搜寻位置
//根据地址输入搜索地图
//根据地址输入搜索地图
- (void)detailSearchAction:(UIButton *)search{if (_destination.text == nil || [_destination.text length] == 0) {return;}CLGeocoder *geocode = [[CLGeocoder alloc]init];[geocode geocodeAddressString:_destination.text completionHandler:^(NSArray *placemarks, NSError *error) {if (error || placemarks.count == 0) {NSLog(@"地址不存在");}else{for (CLPlacemark *placemark in placemarks) {NSLog(@"name=%@ locality=%@ country=%@ postalCode=%@",placemark.name,placemark.locality,placemark.country,placemark.postalCode);}CLPlacemark *firstPlacemark = [placemarks firstObject];CLLocationDegrees latitude = firstPlacemark.location.coordinate.latitude;CLLocationDegrees longitude = firstPlacemark.location.coordinate.longitude;//显示经纬度self.latitudeText.text = [NSString stringWithFormat:@"%.2f",latitude];self.longitudetext.text = [NSString stringWithFormat:@"%.2f",longitude];[self showLocation];[self searchDetailLocationAction];}}];
}
//根据地址搜寻位置
//根据地址搜寻位置
- (void)searchDetailLocationAction{//创建CLLocation 设置经纬度CLLocationCoordinate2D location = CLLocationCoordinate2DMake([self.latitudeText.text floatValue], [self.longitudetext.text floatValue]);//创建标题NSString *title = [NSString stringWithFormat:@"%f,%f",[self.latitudeText.text floatValue], [self.longitudetext.text floatValue]];Mypoint *myPoint = [[Mypoint alloc]initWithCoordinate:location andTitle:title];//添加标注[self.mapView addAnnotation:myPoint];//放大到标注的位置MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(location, 0.01, 0.01);[self.mapView setRegion:region];
}
建一个类:
//.h
#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>
@interface Mypoint : NSObject<MKAnnotation>
//实现MKAnnotion协议必须要定义这个属性
@property (nonatomic,readonly)CLLocationCoordinate2D coordinate;
//标题
@property (nonatomic,copy)NSString *title;//初始化方法
- (id)initWithCoordinate:(CLLocationCoordinate2D)c andTitle:(NSString *)t;@end
//.m
#import "Mypoint.h"@implementation Mypoint
//初始化方法
- (id)initWithCoordinate:(CLLocationCoordinate2D)c andTitle:(NSString *)t{if (self = [super init]) {_coordinate = c;_title = t;}return self;
}
@end
最终效果:
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