匯入百度SDK

注：自iOS8起，系統定位功能進行了升級，SDK為了實現最新的適配，自v2.5.0起也做了相應的修改，開發者在使用定位功能之前，需要在info.plist裡新增（以下二選一，兩個都新增預設使用NSLocationWhenInUseUsageDescription）：

NSLocationWhenInUseUsageDescription ，允許在前臺使用時獲取GPS的描述

NSLocationAlwaysUsageDescription ，允許永久使用GPS的描述

下面為核心程式碼。

//
//  ViewController.m
//  SwalleMap
//
//  Created by dev on 16/6/1.
//  Copyright © 2016年 SWALLE. All rights reserved.
//

#import "ViewController.h"
#import "UIView+Extension.h"
#import <BaiduMapAPI_Base/BMKBaseComponent.h>//引入base相關所有的標頭檔案

#import <BaiduMapAPI_Map/BMKMapComponent.h>//引入地圖功能所有的標頭檔案

#import <BaiduMapAPI_Search/BMKSearchComponent.h>//引入檢索功能所有的標頭檔案

#import <BaiduMapAPI_Cloud/BMKCloudSearchComponent.h>//引入雲檢索功能所有的標頭檔案

#import <BaiduMapAPI_Location/BMKLocationComponent.h>//引入定位功能所有的標頭檔案

#import <BaiduMapAPI_Utils/BMKUtilsComponent.h>//引入計算工具所有的標頭檔案

#import <BaiduMapAPI_Radar/BMKRadarComponent.h>//引入周邊雷達功能所有的標頭檔案

#import <BaiduMapAPI_Map/BMKMapView.h>//只引入所需的單個頭檔案

@interface ViewController ()<BMKMapViewDelegate,BMKLocationServiceDelegate,BMKGeoCodeSearchDelegate>
{
    BMKPinAnnotationView *newAnnotation;
    
    BMKGeoCodeSearch *_geoCodeSearch;
    
    BMKReverseGeoCodeOption *_reverseGeoCodeOption;
    
    
}
@property (nonatomic, strong) BMKLocationService *localService;
@property (weak, nonatomic) UIButton *mapPin;
@end

@implementation ViewController
-(BMKLocationService *)localService{
    if (!_localService) {
        _localService = [[BMKLocationService alloc] init];
        [_localService setDesiredAccuracy:kCLLocationAccuracyBest];//設定定位精度
    }
    return _localService;
}
- (void)viewDidLoad {
    [super viewDidLoad];
   
    self.mapView = [[BMKMapView alloc] initWithFrame:self.view.frame];
    self.mapPin = [UIButton buttonWithType:UIButtonTypeSystem];//大頭針
    self.mapPin.width = 40;
    self.mapPin.height = 80;
    self.mapPin.center = self.mapView.center;
    [self.mapPin setBackgroundImage:[UIImage imageNamed:@"serach_Map"] forState:UIControlStateNormal];
    self.mapPin.backgroundColor = [UIColor greenColor];
    [self.mapView addSubview:self.mapPin];
    [self.view addSubview:self.mapView];
    self.mapView.zoomLevel=17;//比例尺
    [self.mapView setMapType:BMKMapTypeStandard];//地圖型別
    self.mapView.delegate = self;
    self.mapView.userTrackingMode = BMKUserTrackingModeFollow;//設定定位的狀態
    self.mapView.showsUserLocation = YES;//顯示定點陣圖層
    self.localService.delegate = self;
    [self.localService startUserLocationService];//使用者開始定位
    
    //self.mapView.showsUserLocation = NO;//先關閉顯示的定點陣圖層
    self.mapView.userTrackingMode = BMKUserTrackingModeFollow;//設定定位的狀態
    self.mapView.showsUserLocation = YES;//顯示定點陣圖層
    [self.mapView bringSubviewToFront:self.mapPin];


}
#pragma mark -- BMKLocationServiceDelegate
- (void)didUpdateBMKUserLocation:(BMKUserLocation *)userLocation
{
    self.mapView.showsUserLocation = YES;//顯示定點陣圖層
    //設定地圖中心為使用者經緯度
    [self.mapView updateLocationData:userLocation];
    
    
    //    _mapView.centerCoordinate = userLocation.location.coordinate;
    BMKCoordinateRegion region ;//表示範圍的結構體
    region.center = self.mapView.centerCoordinate;//中心點
    region.span.latitudeDelta = 0.004;//經度範圍（設定為0.1表示顯示範圍為0.2的緯度範圍）
    region.span.longitudeDelta = 0.004;//緯度範圍
    [self.mapView setRegion:region animated:YES];
    
}
#pragma mark -- BMKMapViewDelegate
- (void)mapView:(BMKMapView *)mapView regionDidChangeAnimated:(BOOL)animated
{
    //螢幕座標轉地圖經緯度
    CLLocationCoordinate2D MapCoordinate=[_mapView convertPoint:_mapPin.center toCoordinateFromView:_mapView];
    NSLog(@"latitude == %f longitude == %f",MapCoordinate.latitude,MapCoordinate.longitude);
    if (_geoCodeSearch==nil) {
        //初始化地理編碼類
        _geoCodeSearch = [[BMKGeoCodeSearch alloc]init];
        _geoCodeSearch.delegate = self;
        
    }
    if (_reverseGeoCodeOption==nil) {
        
        //初始化反地理編碼類
        _reverseGeoCodeOption= [[BMKReverseGeoCodeOption alloc] init];
    }
    
    //需要逆地理編碼的座標位置
    _reverseGeoCodeOption.reverseGeoPoint =MapCoordinate;
    [_geoCodeSearch reverseGeoCode:_reverseGeoCodeOption];
    
    //建立地理編碼物件
    CLGeocoder *geocoder=[[CLGeocoder alloc]init];
    //建立位置
    CLLocation *location=[[CLLocation alloc]initWithLatitude:MapCoordinate.latitude longitude:MapCoordinate.longitude];
    
    //反地理編碼
    [geocoder reverseGeocodeLocation:location completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
        //判斷是否有錯誤或者placemarks是否為空
        if (error !=nil || placemarks.count==0) {
            NSLog(@"%@",error);
            return ;
        }
        for (CLPlacemark *placemark in placemarks) {
            //賦值詳細地址
            NSLog(@"%@",placemark.name);
        }
    }];
}
#pragma mark -- BMKGeoCodeSearchDelegate
//周邊資訊
- (void)onGetReverseGeoCodeResult:(BMKGeoCodeSearch *)searcher result:(BMKReverseGeoCodeResult *)result errorCode:(BMKSearchErrorCode)error{
    for (BMKPoiInfo *poi in result.poiList) {
        NSLog(@"%@",poi.name);//周邊建築名
        NSLog(@"%d",poi.epoitype);
        
    }
}
@end