最近項目中要寫一個微信那種發送位置的功能。具體功能在于：
- 定位到當前位置
- 可定位當前位置附近的Poi
- 可自行搜索目標位置，并展示附近的poi
- 選擇當前位置或者選擇目標位置進行發送
一.準備工作
1.首先去高德地圖官網下載相關的SDK（如下圖）：
2.按照高德地圖官網的步驟繼續添加所需要的依賴庫
3.根據項目的bundleID前往高德地圖API中創建引用并申請相關的key
高德地圖應用管理后臺
到這一步前期的準備工作基本差不多了，當然，我這寫的不是很具體，詳細的引入高德地圖SDK還需要耐心按照高德地圖官網SDK一步步的去操作
二.代碼部分
1.初始化高德地圖SDK
在AppleDelegate中引入相關頭文件，從高德地圖應用管理中找到該應用對用的key值，進行高德地圖SDK的初始化操作。直接貼代碼部分：
#import "AppDelegate.h"#import "ViewController.h"#import <AMapLocationKit/AMapLocationKit.h>#import <AMapFoundationKit/AMapFoundationKit.h>static NSString *APIKey = @"a1500980e29b7ca7612a46c19e0d2e3a";@interface AppDelegate ()@end@implementation AppDelegate- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds]; [self.window makeKeyAndVisible]; self.window.rootViewController = [[UINavigationController alloc] initWithRootViewController:[ViewController new]]; [AMapServices sharedServices].apiKey = APIKey; return YES;}2.定位到用戶當前位置
在你需要定位的類中引入與地圖相關的頭文件
初始化地圖view：
- (void)initMapView{ self.mapView = [[MAMapView alloc] initWithFrame:CGRectMake(0, 64 + 44, SCREEN_WIDTH, 300)]; self.mapView.delegate = self; self.mapView.mapType = MAMapTypeStandard; self.mapView.showsScale = NO; self.mapView.showsCompass = NO; self.mapView.showsUserLocation = YES; [self.view addSubview:self.mapView]; UIButton *localButton = [UIButton buttonWithType:UIButtonTypeCustom]; localButton.backgroundColor = [UIColor redColor]; localButton.frame = CGRectMake(SCREEN_WIDTH - 60, 240, 50, 50); [localButton addTarget:self action:@selector(localButtonAction) forControlEvents:UIControlEventTouchUpInside]; localButton.layer.cornerRadius = 25; localButton.clipsToBounds = YES; [localButton setImage:[UIImage imageNamed:@"定位"] forState:UIControlStateNormal]; [self.mapView addSubview:localButton]; }// 定位SDK- (void)configLocationManager { self.locationManager = [[AMapLocationManager alloc] init]; [self.locationManager setDelegate:self]; [self.locationManager setDesiredAccuracy:kCLLocationAccuracyHundredMeters]; //單次定位超時時間 [self.locationManager setLocationTimeout:6]; [self.locationManager setReGeocodeTimeout:3];}開啟定位操作：
- (void)locateAction { [self showHudInView:self.view hint:@"正在定位..."]; //帶逆地理的單次定位 [self.locationManager requestLocationWithReGeocode:YES completionBlock:^(CLLocation *location, AMapLocationReGeocode *regeocode, NSError *error) { if (error) { [self showHint:@"定位錯誤" yOffset:-180]; NSLog(@"locError:{%ld - %@};",(long)error.code,error.localizedDescription); if (error.code == AMapLocationErrorLocateFailed) { return ; } } //定位信息 NSLog(@"location:%@", location); if (regeocode) { [self hideHud]; self.currentLocationCoordinate = CLLocationCoordinate2DMake(location.coordinate.latitude, location.coordinate.longitude); self.city = regeocode.city; [self showMapPoint]; [self setCenterPoint]; self.request.location = [AMapGeoPoint locationWithLatitude:location.coordinate.latitude longitude:location.coordinate.longitude]; [self.mapSearch AMapPOIAroundSearch:self.request]; } }];}定位成功之后展示大頭針到當前位置（如果一直不顯示大頭針，檢查一下自己是否導入了高德地圖的資源文件）：
- (void)showMapPoint{ [_mapView setZoomLevel:15.1 animated:YES]; [_mapView setCenterCoordinate:self.currentLocationCoordinate animated:YES];}- (void)setCenterPoint{ MAPointAnnotation * centerAnnotation = [[MAPointAnnotation alloc] init];//初始化注解對象 centerAnnotation.coordinate = self.currentLocationCoordinate;//定位經緯度 centerAnnotation.title = @""; centerAnnotation.subtitle = @""; [self.mapView addAnnotation:centerAnnotation];//添加注解 }#pragma mark - MAMapView Delegate- (MAAnnotationView *)mapView:(MAMapView *)mapView viewForAnnotation:(id<MAAnnotation>)annotation { if ([annotation isKindOfClass:[MAPointAnnotation class]]) { static NSString *pointReuseIndentifier = @"pointReuseIndentifier"; MAPinAnnotationView*annotationView = (MAPinAnnotationView*)[mapView dequeueReusableAnnotationViewWithIdentifier:pointReuseIndentifier]; if (annotationView == nil) { annotationView = [[MAPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:pointReuseIndentifier]; } annotationView.canShowCallout= YES; //設置氣泡可以彈出，默認為NO annotationView.animatesDrop = YES; //設置標注動畫顯示，默認為NO annotationView.draggable = YES; //設置標注可以拖動，默認為NO annotationView.pinColor = MAPinAnnotationColorRed; return annotationView; } return nil;}地圖的代理方法等：
- (void)mapView:(MAMapView *)mapView regionDidChangeAnimated:(BOOL)animated{ [self.mapView removeAnnotations:self.mapView.annotations]; CLLocationCoordinate2D centerCoordinate = mapView.region.center; self.currentLocationCoordinate = centerCoordinate; MAPointAnnotation * centerAnnotation = [[MAPointAnnotation alloc] init]; centerAnnotation.coordinate = centerCoordinate; centerAnnotation.title = @""; centerAnnotation.subtitle = @""; [self.mapView addAnnotation:centerAnnotation]; //主動選擇地圖上的地點 if (!self.isSelectedAddress) { [self.tableView setContentOffset:CGPointMake(0,0) animated:NO]; self.selectedIndexPath=[NSIndexPath indexPathForRow:0 inSection:0]; self.request.location = [AMapGeoPoint locationWithLatitude:centerCoordinate.latitude longitude:centerCoordinate.longitude]; self.currentPage = 1; self.request.page = self.currentPage; [self.mapSearch AMapPOIAroundSearch:self.request]; } self.isSelectedAddress = NO;}包括主動選擇地圖上的點然后進行附近的搜索，可自定義搜索的內容，定位成功之后用戶可以獲取到當前的經緯度地址等一系列信息。詳細的代碼有點多就不一一貼出來了，需要的同學可以點擊下面的github地址去下載體驗。
github地址:https://github.com/XuZzzzzzzz/XCLocation
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持武林網。
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