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iOS開發(fā)中最基本的位置功能實(shí)現(xiàn)示例

更新時(shí)間：2015年09月17日 09:19:01 作者：TommyYaphetS

這篇文章主要介紹了iOS開發(fā)中最基本的位置功能實(shí)現(xiàn)示例,需要的朋友可以參考下

定位獲取位置及位置編碼-反編碼
我們的應(yīng)用程序,可以通過添加Core Location框架所包含的類,獲取設(shè)備的地圖位置。
添加CoreLocation.framework框架,導(dǎo)入#import<CoreLocation/CoreLocation.h>。
使用地圖服務(wù)時(shí),會(huì)消耗更多地設(shè)備電量.因此,在獲取到設(shè)備的位置后,應(yīng)該停止定位來節(jié)省電量。
我們通過一個(gè)demo來展示內(nèi)容與效果

復(fù)制代碼代碼如下:

// 

// HMTRootViewController.h 

// My-GPS-Map 

// 

// Created by hmt on 14-4-12. 

// Copyright (c) 2014年 胡明濤. All rights reserved. 

// 

#import <UIKit/UIKit.h> 

@interface HMTRootViewController : UIViewController <CLLocationManagerDelegate> 

@end 

// 

// HMTRootViewController.m 

// My-GPS-Map 

// 

// Created by hmt on 14-4-12. 

// Copyright (c) 2014年 胡明濤. All rights reserved. 

// 

#import "HMTRootViewController.h" 

#import <AddressBook/AddressBook.h> 

@interface HMTRootViewController (){ 

CLLocationManager * _locationManage; 

} 

@property (nonatomic,retain) CLLocationManager * locationManage; 

@end 

@implementation HMTRootViewController 

- (void)dealloc{ 

RELEASE_SAFELY(_locationManage); 

[super dealloc]; 

} 

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil 

{ 

self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; 

if (self) { 

// Custom initialization 

} 

return self; 

} 

- (void)viewDidLoad 

{ 

[super viewDidLoad]; 

// Do any additional setup after loading the view. 

[self createGPSMap]; 

self.view.backgroundColor = [UIColor redColor]; 

} 

- (void)createGPSMap{ 

// 初始化位置服務(wù) 

self.locationManage = [[CLLocationManager alloc]init]; 

// 要求CLLocationManager對(duì)象返回全部信息 

_locationManage.distanceFilter = kCLDistanceFilterNone; 

// 設(shè)置定位精度 

_locationManage.desiredAccuracy = kCLLocationAccuracyBest; 

// 設(shè)置代理 

_locationManage.delegate = self; 

// 開始定位 

[_locationManage startUpdatingLocation]; 

[_locationManage release]; 

} 

- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations{ 

CLLocation * newLocation = [locations lastObject]; 

// 停止實(shí)時(shí)定位 

[_locationManage stopUpdatingLocation]; 

// 取得經(jīng)緯度 

CLLocationCoordinate2D coord2D = newLocation.coordinate; 

double latitude = coord2D.latitude; 

double longitude = coord2D.longitude; 

NSLog(@"緯度 = %f 經(jīng)度 = %f",latitude,longitude); 

// 取得精度 

CLLocationAccuracy horizontal = newLocation.horizontalAccuracy; 

CLLocationAccuracy vertical = newLocation.verticalAccuracy; 

NSLog(@"水平方 = %f 垂直方 = %f",horizontal,vertical); 

// 取得高度 

CLLocationDistance altitude = newLocation.altitude; 

NSLog(@"%f",altitude); 

// 取得此時(shí)時(shí)刻 

NSDate *timestamp = [newLocation timestamp]; 

// 實(shí)例化一個(gè)NSDateFormatter對(duì)象 

NSDateFormatter* dateFormat = [[NSDateFormatter alloc] init]; 

// 設(shè)定時(shí)間格式 

[dateFormat setDateFormat:@"yyyy-MM-dd HH:mm:ss a"]; 

[dateFormat setAMSymbol:@"AM"]; // 顯示中文, 改成"上午" 

[dateFormat setPMSymbol:@"PM"]; 

// 求出當(dāng)天的時(shí)間字符串，當(dāng)更改時(shí)間格式時(shí)，時(shí)間字符串也能隨之改變 

NSString *dateString = [dateFormat stringFromDate:timestamp]; 

NSLog(@"此時(shí)此刻時(shí)間 = %@",dateString); 

// -----------------------------------------位置反編碼-------------------------------------------- 

CLGeocoder * geocoder = [[CLGeocoder alloc]init]; 

[geocoder reverseGeocodeLocation:newLocation completionHandler:^(NSArray *placemarks, NSError *error) { 

for (CLPlacemark * place in placemarks) { 

NSLog(@"name = %@",place.name); // 位置名 

NSLog(@"thoroughfare = %@",place.thoroughfare); // 街道 

NSLog(@"subAdministrativeArea = %@",place.subAdministrativeArea); // 子街道 

NSLog(@"locality = %@",place.locality); // 市 

NSLog(@"subLocality = %@",place.subLocality); // 區(qū) 

NSLog(@"country = %@",place.country); // 國家 

NSArray *allKeys = place.addressDictionary.allKeys; 

for (NSString *key in allKeys) 

{ 

NSLog(@"key = %@, value = %@",key, place.addressDictionary[key]); 

} 

#pragma mark - 使用系統(tǒng)定義的字符串直接查詢,記得導(dǎo)入AddressBook框架 

NSLog(@"kABPersonAddressCityKey = %@", (NSString *)kABPersonAddressCityKey); 

NSLog(@"city = %@", place.addressDictionary[(NSString *)kABPersonAddressCityKey]); 

NSString *city = place.locality; 

if(city == nil) 

{ 

city = place.addressDictionary[(NSString *)kABPersonAddressStateKey]; 

} 

} 

}]; 

} 

- (void)didReceiveMemoryWarning 

{ 

[super didReceiveMemoryWarning]; 

// Dispose of any resources that can be recreated. 

} 

@end

程序運(yùn)行結(jié)果:(以39.3,116.4為例)

復(fù)制代碼代碼如下:

//  判斷輸入的地址  

if (self.locationTextField.text == nil  ||  [self.locationTextField.text length] == 0) {  

    return;  

}  

CLGeocoder *geocoder = [[CLGeocoder alloc] init];  

/*  -----------------------------------------位置編碼--------------------------------------------  */  

[geocoder geocodeAddressString:_locationTextField.text completionHandler:^(NSArray *placemarks, NSError *error) {  

    for (CLPlacemark *placemark in placemarks) {  

        CLLocationCoordinate2D coordinate = placemark.location.coordinate;  

        NSString *strCoordinate = [NSString stringWithFormat:@"緯度 = %3.5f\n 經(jīng)度 = %3.5f",coordinate.latitude,coordinate.longitude];  

        NSLog(@"%@",strCoordinate);  

        NSDictionary *addressDictionary = placemark.addressDictionary;  

        NSString *address = [addressDictionary objectForKey:(NSString *)kABPersonAddressStreetKey];  

        NSString *state = [addressDictionary objectForKey:(NSString *)kABPersonAddressStateKey];  

        NSString *city = [addressDictionary objectForKey:(NSString *)kABPersonAddressCityKey];  

        NSLog(@"街道 = %@\n 省 = %@\n 城市 = %@",address,state,city);  

    }  

}];

地圖的使用以及標(biāo)注地圖
使用CoreLocation框架獲取了當(dāng)前設(shè)備的位置,這一章介紹地圖的使用。
首先,導(dǎo)入<MapKit.framework>框架：

復(fù)制代碼代碼如下:

#import <MapKit/MapKit.h>

main代碼示例

復(fù)制代碼代碼如下:

main.h  

#import <UIKit/UIKit.h>  

#import <MapKit/MapKit.h>  

//  引用地圖協(xié)議  

@interface HMTMainViewController : UIViewController<MKMapViewDelegate>  

@end  

main.m  

//  

//  HMTMainViewController.m  

//  Map  

//  

//  Created by HMT on 14-6-21.  

//  Copyright (c) 2014年 humingtao. All rights reserved.  

//  

#import "HMTMainViewController.h"  

#import "HMTAnnotation.h"  

@interface HMTMainViewController ()  

@property (nonatomic ,strong) MKMapView *mapView;  

@end  

@implementation HMTMainViewController  

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil  

{  

    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];  

    if (self) {  

        // Custom initialization  

    }  

    return self;  

}  

- (void)viewDidLoad  

{  

    [super viewDidLoad];  

    self.view.backgroundColor = [UIColor redColor];  

    // Do any additional setup after loading the view.  

    self.navigationItem.title = @"地圖標(biāo)注";  

    self.mapView = [[MKMapView alloc] initWithFrame:CGRectMake(0, 0, 320, 568)];  

    //  是否顯示用戶當(dāng)前位置  

    self.mapView.showsUserLocation = YES;  

    //  設(shè)置代理  

    self.mapView.delegate = self;  

    //  地圖顯示類型  

    /** 

     *      MKMapTypeStandard = 0, //  標(biāo)準(zhǔn)地圖 

     *      MKMapTypeSatellite,    //  衛(wèi)星地圖 

     *      MKMapTypeHybrid        //  混合地圖 

     */  

    self.mapView.mapType = MKMapTypeStandard;  

    //  經(jīng)緯度  

    CLLocationCoordinate2D coord2D = {39.910650,116.47030};  

    //  顯示范圍,數(shù)值越大,范圍就越大  

    MKCoordinateSpan span = {0.1,0.1};  

    //  顯示區(qū)域  

    MKCoordinateRegion region = {coord2D,span};  

    //  給地圖設(shè)置顯示區(qū)域  

    [self.mapView setRegion:region animated:YES];  

    //  是否允許縮放  

    //self.mapView.zoomEnabled = NO;  

    //  是否允許滾動(dòng)  

    //self.mapView.scrollEnabled = NO;  

    //  初始化自定義Annotation(可以設(shè)置多個(gè))  

    HMTAnnotation *annotation = [[HMTAnnotation alloc] initWithCGLocation:coord2D];  

    //  設(shè)置標(biāo)題  

    annotation.title = @"自定義標(biāo)注位置";  

    //  設(shè)置子標(biāo)題  

    annotation.subtitle = @"子標(biāo)題";  

    //  將標(biāo)注添加到地圖上(執(zhí)行這步,就會(huì)執(zhí)行下面的代理方法viewForAnnotation)  

    [self.mapView addAnnotation:annotation];  

    [self.view addSubview:_mapView];  

}  

//   返回標(biāo)注視圖(大頭針視圖)  

- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation{  

    /** 

     *  是不是有點(diǎn)像自定義UITableViewCell一樣 

     */  

    static NSString *identifier = @"annotation";  

    //  復(fù)用標(biāo)注視圖(MKPinAnnotationView是大頭針視圖,繼承自MKAnnotation)  

    MKPinAnnotationView *annotationView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:identifier];  

    if (annotationView == nil) {  

        annotationView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier];  

    }  

    //  判斷是否為自定義的標(biāo)注視圖  

    if ([annotation isKindOfClass:[HMTAnnotation class]]) {  

        //  設(shè)置大頭針圓圈顏色  

        annotationView.pinColor = MKPinAnnotationColorGreen;  

        //  點(diǎn)擊頭針紅色圓圈是否顯示上面設(shè)置好的標(biāo)題視圖  

        annotationView.canShowCallout = YES;  

        //  要自定義錨點(diǎn)圖片，可考慮使用MKAnnotationView;MKPinAnnotationView只能是以大頭針形式顯示！?。?！  

        annotationView.image = [UIImage imageNamed:@"customImage"];  

        //  添加標(biāo)題視圖右邊視圖(還有左邊視圖,具體可自行查看API)  

        UIButton *button = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];  

        [button addTarget:self action:@selector(didClickAnnotationViewRightButtonAction:) forControlEvents:UIControlEventTouchUpInside];  

        annotationView.rightCalloutAccessoryView = button;  

        //  是否以動(dòng)畫形式顯示標(biāo)注(從天而降)  

        annotationView.animatesDrop = YES;  

        annotationView.annotation = annotation;  

        //  返回自定義的標(biāo)注視圖  

        return annotationView;  

    }else{  

        //  當(dāng)前設(shè)備位置的標(biāo)注視圖,返回nil,當(dāng)前位置會(huì)創(chuàng)建一個(gè)默認(rèn)的標(biāo)注視圖  

        return nil;  

    }  

}  

- (void)didClickAnnotationViewRightButtonAction:(UIButton *)button{  

    NSLog(@"%d %s",__LINE__,__FUNCTION__);  

}  

//  更新當(dāng)前位置調(diào)用  

- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation{  

    NSLog(@"%d %s",__LINE__,__FUNCTION__);  

}  

//  選中標(biāo)注視圖  

- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view{  

    NSLog(@"%d %s",__LINE__,__FUNCTION__);  

}  

//  地圖的現(xiàn)實(shí)區(qū)域改變了調(diào)用  

- (void)mapView:(MKMapView *)mapView regionDidChangeAnimated:(BOOL)animated{  

    NSLog(@"%d %s",__LINE__,__FUNCTION__);  

}  

- (void)didReceiveMemoryWarning  

{  

    [super didReceiveMemoryWarning];  

    // Dispose of any resources that can be recreated.  

}  

@end

自定義MKAnnotationView

復(fù)制代碼代碼如下:

#import <Foundation/Foundation.h>  

#import <MapKit/MapKit.h>  

//  引入MKAnnotation協(xié)議,切記不能忘記!!!!!!!!!  

@interface HMTAnnotation : NSObject<MKAnnotation>  

@property (nonatomic,readonly) CLLocationCoordinate2D coordinate;  //  坐標(biāo)  

@property (nonatomic,copy) NSString *title;     //  位置名稱  

@property (nonatomic,copy) NSString *subtitle;  //  位置子信息(可選)  

- (id)initWithCGLocation:(CLLocationCoordinate2D) coordinate;  

@end  

#import "HMTAnnotation.h"  

@implementation HMTAnnotation  

- (id)initWithCGLocation:(CLLocationCoordinate2D)coordinate{  

    if (self = [super init]) {  

        _coordinate = coordinate;  

    }  

    return self;  

}  

@end