一、苹果地图相关

第一、室外定位

**一.新建工程,在工程 Build Phases 中的 Link Binary With Libraries 中添加框架**
    
        CoreLocation.framework
        MapKit.framework

**二.建议创建 PCH 文件,在文件中导入头文件**
    
        #import <MapKit>
        #import <CoreLocation>

**三.在相关控制器中遵守协议**

        <CLLocationManagerDelegate>
        <MKMapViewDelegate>

**四.申明相关属性**

        @property (nonatomic, retain)MKMapView *mapView;
        @property (nonatomic, retain)CLLocationManager *locaManager;

**五.在 ViewDidLoad 方法或者其他相关方法里实现以下代码**
    
            //定位管理器
            self.locaManager = [[CLLocationManager alloc]init];
            //如果没有授权则请求用户授权
            if ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusNotDetermined){
                [self.locaManager requestWhenInUseAuthorization];
            }else if([CLLocationManager authorizationStatus] == kCLAuthorizationStatusAuthorizedWhenInUse){
                //设置代理
                self.locaManager.delegate = self;
                
                //设置定位精度
                self.locaManager.desiredAccuracy = kCLLocationAccuracyBest;
                //定位频率,每隔多少米定位一次
                CLLocationDistance distance = 10.0;//十米定位一次
                self.locaManager.distanceFilter = distance;
                //启动跟踪定位
                [self.locaManager startUpdatingLocation];
            }
           
            //初始化地图视图
            self.mapView = [[MKMapView alloc] initWithFrame:CGRectMake(10, 80, WIDTH-20, 160)];
            //设置地图样式为基本样式（这里有三种样式）
            self.mapView.mapType = MKMapTypeStandard;
            //是否显示当前位置
            self.mapView.showsUserLocation = YES;
            //设置代理
            self.mapView.delegate = self;
            [self.view addSubview:self.mapView];

**六.实现相关代理方法**

        //获取用户位置
        - (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation{
            //点击大头针，出现信息
            userLocation.title = @"我的位置";
            //让地图视图转移到用户当前位置
            [mapView setCenterCoordinate:userLocation.location.coordinate animated:YES];
            //设置精度，以及显示用户所在地
            MKCoordinateSpan span = MKCoordinateSpanMake(1, 1);//比例尺为1：10^5,1厘米代表1公里
            MKCoordinateRegion region = MKCoordinateRegionMake(userLocation.location.coordinate, span);
            [mapView setRegion:region animated:YES];
        }

        //获取经纬度
        - (void)locationManager:(CLLocationManager *)manager
             didUpdateLocations:(NSArray *)locations
        {
             CLLocation *currLocation = [locations lastObject];
             NSLog(@"后台定位的经度%f   纬度%f    海拔%f   行进方向%f",currLocation.coordinate.longitude,currLocation.coordinate.latitude,currLocation.altitude,currLocation.course);
            [self.model bianlinowlat:currLocation.coordinate.latitude nowlong:currLocation.coordinate.longitude];
        }

        //计算移动距离 (根据经纬度)
        -(float)julinowlat:(double)nowlat nowlong:(double)nowlong oldWeiZhi:(NSDictionary *)dict
        {
            CLLocation *orig=[[CLLocation alloc] initWithLatitude:[dict[@"weidu"] doubleValue]  longitude:[dict[@"jingdu"] doubleValue]];
            CLLocation* dist=[[CLLocation alloc] initWithLatitude:nowlat longitude:nowlong];
            CLLocationDistance kilometers=[orig distanceFromLocation:dist];
            return kilometers;
        
        }    

**七.配置 info.list 文件**
        
        增加属性 NSLocationWhenInUseUsageDescription 

第二、定位城市

图片.png

    1.引入文件
        #import <CoreLocation>
        #import "TQLocationConverter.h"
        #import "ZCChinaLocation.h"

    2.导入协议代理和定义属性
        <CLLocationManagerDelegate>
        /// 定位
        @property (nonatomic , strong) CLLocationManager *locationManager;
        /// 得到当前位置的经纬度
        @property (nonatomic , assign) CLLocationCoordinate2D curCoordinate2D;

    3.viewDidLoad

        - (void)viewDidLoad {
            [super viewDidLoad];
        
            // 背景颜色
        //    self.view.backgroundColor = NavColor;
            self.view.backgroundColor = [UIColor orangeColor];
            [self locationInit];
        
            // 导航栏
            [self createNavView];
            // 中部视图
            [self createCenterView];
        }


    4.定位初始化

        /// 定位初始化
        - (void)locationInit{
            NSLog(@"定位初始化");
            //定位管理器
            self.locationManager=[[CLLocationManager alloc]init];
            //如果没有授权则请求用户授权
            if ([CLLocationManager authorizationStatus]==kCLAuthorizationStatusNotDetermined ){
                [_locationManager requestWhenInUseAuthorization];
            }else if([CLLocationManager authorizationStatus]==kCLAuthorizationStatusAuthorizedAlways || [CLLocationManager authorizationStatus]==kCLAuthorizationStatusAuthorizedWhenInUse){
                //设置代理
                _locationManager.delegate=self;
                //设置定位精度
                //        [self.locationManager setAllowsBackgroundLocationUpdates:YES];
                _locationManager.desiredAccuracy=kCLLocationAccuracyBest;
                _locationManager.pausesLocationUpdatesAutomatically = NO;
                //定位频率,每隔多少米定位一次
                CLLocationDistance distance = 10;
                _locationManager.distanceFilter=distance;
                //启动跟踪定位
                [_locationManager startUpdatingLocation];
            }
        }

    5.代理方法及地理经纬度转换

        #pragma mark - 代理方法相关
        - (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation> *)locations{
            CLLocation *currentLoction = [locations lastObject];
            /// 得到当前位置的经纬度
            self.curCoordinate2D = currentLoction.coordinate;
            NSLog(@"定位直接得到的坐标===%f  %f",_curCoordinate2D.latitude,_curCoordinate2D.longitude);
            [self.locationManager stopUpdatingLocation];
        
            /// 判断当前坐标是否在中国
            BOOL isChina = [[ZCChinaLocation shared] isInsideChina:(CLLocationCoordinate2D){_curCoordinate2D.latitude,_curCoordinate2D.longitude}];
            if (isChina) {
                /// 转换坐标 不转换会出现偏移
                _curCoordinate2D = [TQLocationConverter transformFromWGSToGCJ:_curCoordinate2D];
                
                //获得地理位置名字
                [self googleMapAddress];
            } 
        }

    6.地理经纬度转换后获取相关位置

        // 获得地理位置名字
        - (NSString *)googleMapAddress{
            __block NSString *addressStr;
            CLGeocoder *geocoder = [[CLGeocoder alloc] init];
            CLLocation *location = [[CLLocation alloc] initWithLatitude:_curCoordinate2D.latitude longitude:_curCoordinate2D.longitude];
            NSLog(@"转换后得到的坐标===%f  %f",_curCoordinate2D.latitude,_curCoordinate2D.longitude);
        
            [geocoder reverseGeocodeLocation:location completionHandler:^(NSArray<CLPlacemark> * _Nullable placemarks, NSError * _Nullable error) {
                if (error || placemarks.count == 0) {
                    addressStr = @"";
                    NSLog(@"获取定理位置失败");
                }else{
                    addressStr = [placemarks firstObject].locality;
                    NSLog(@"------------ %@",addressStr);
                    NSString *city = [addressStr substringWithRange:NSMakeRange(0, 2) ];
                    [_navView.LocationBtn setTitle:city forState:UIControlStateNormal];
                    
                    //存储city  用以判断下次app进入city默认显示值
                    [[NSUserDefaults standardUserDefaults] setObject:city forKey:@"city"];
                    [[NSUserDefaults standardUserDefaults] synchronize];
                }
            }];
            return addressStr;
        }

    7.点击城市按钮 （单次点击和多次点击，开了定位权限点击和关了定位权限点击）

        - (void)locationBtnClick:(UIButton *)sender{
            [MSUPermissionTool getLocationPermission:NO result:^(NSInteger authStatus) {
                if (authStatus == 1 || authStatus == 0) {
                    self.hidesBottomBarWhenPushed = YES;
                    MSULocationController *location = [[MSULocationController alloc] init];
                    [self presentViewController:location animated:YES completion:nil];
                    self.hidesBottomBarWhenPushed = NO;
                }else{
                    UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"温馨提示" message:@"请去-> [设置 - 隐私 - 定位服务 - 秀贝] 打开访问开关" preferredStyle:UIAlertControllerStyleAlert];
                    [alert addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
                        //确定按钮点击事件处理
                    }]];
                    [self presentViewController:alert animated:YES completion:nil];
                }
            }];
        }

二、百度地图（地图视图加搜索附近功能，简易版，未加任何性能优化）

图片.png

问题：打开百度地图后，发现百度地图显示错误，控制台输出提示引擎初始化失败；此问题还会导致第二次登录进入百度地图控制器界面报错，报错位置在   self.mapView =[[BMKMapView alloc] init];


 解决方案：

第一步：

CEAE347C-00F4-4E94-8E3C-55CEB5E5E49E.png

66C43601-F894-428C-B402-B31F979CA04F.png

第二步：
卸载真机上的app 重新运行！

0、在百度开放平台注册，导入相关依赖库

D2F17BED-9BA5-43ED-AE14-567E2DE15C1B.png

1、cocoapods 集成百度地图框架 pod "BaiduMapKit"

2、导入相关头文件

    #import <BaiduMapKit/BaiduMapAPI_Map/BMKMapView.h> //mapview 显示相关
    #import <BaiduMapKit/BaiduMapAPI_Location/BMKLocationService.h> //定位相关
    #import <BaiduMapAPI_Search/BMKGeocodeSearch.h> //geo编码和反geo编码相关
    #import <BaiduMapAPI_Search/BMKPoiSearchType.h> //定位信息相关

    @property (nonatomic , strong) BMKMapView* mapView;
    @property (nonatomic , strong) BMKLocationService *localService;
    @property(nonatomic,strong)BMKGeoCodeSearch* geocodesearch;
    
    @property(nonatomic,assign)NSInteger currentSelectLocationIndex;
    @property(nonatomic,assign)CLLocationCoordinate2D currentCoordinate;
    
    
    @property (nonatomic , strong) UITableView *tableView;
    @property (nonatomic , strong) NSMutableArray *dataArr;

3、viewDidLoad初始化

        // mapview 初始化相关
        self.mapView = [[BMKMapView alloc]initWithFrame:CGRectMake(0, 0, WIDTH, 300)];
        [self.view addSubview:_mapView];
        _mapView.zoomEnabled=NO;
        _mapView.zoomEnabledWithTap=NO;
        _mapView.zoomLevel=17;
        _mapView.showsUserLocation = NO;// 先关闭显示的定位图层
        _mapView.userTrackingMode = BMKUserTrackingModeFollow;//设置定位的状态
        self.mapView.showsUserLocation = YES;//显示定位图层
        self.currentSelectLocationIndex = 0;


        // 隐藏百度地图logo
        UIView *mView = _mapView.subviews.firstObject;
        for (id logoView in mView.subviews)
        {
            if ([logoView isKindOfClass:[UIImageView class]])
            {
                UIImageView *b_logo = (UIImageView*)logoView;
                b_logo.hidden = YES;
            }
        }

    // 定位初始化
    self.localService = [[BMKLocationService alloc] init];
    _localService.delegate = self;
    [_localService startUserLocationService];

    //geo编码相关
    self.geocodesearch = [[BMKGeoCodeSearch alloc] init];
    _geocodesearch.delegate = self;

    //初始化tableview列表
    self.dataArr = [NSMutableArray array];
    [self createMyTableView];

4、内存优化相关

    -(void)viewWillAppear:(BOOL)animated
    {
        [_mapView viewWillAppear];
        _mapView.delegate = self; // 此处记得不用的时候需要置nil，否则影响内存的释放
        self.localService.delegate = self;
        self.geocodesearch.delegate = self;
    }
    -(void)viewWillDisappear:(BOOL)animated
    {
        [_mapView viewWillDisappear];
        _mapView.delegate = nil; // 不用时，置nil
        self.localService.delegate = nil;
        self.geocodesearch.delegate = nil;
    }

    - (void)dealloc
    {
        if (_mapView)
        {
            _mapView = nil;
        }
        if (_geocodesearch)
        {
            _geocodesearch = nil;
        }
        if (_localService)
        {
            _localService = nil;
        }
    }
        
5、tableview 相关

    #pragma mark - tableview
    - (void)createMyTableView{
        self.tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 300, WIDTH, HEIGHT-300) style:UITableViewStylePlain];
        _tableView.backgroundColor = [UIColor yellowColor];
        _tableView.dataSource = self;
        _tableView.delegate = self;
        [self.view addSubview:_tableView];
    }
    
    - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
        return self.dataArr.count;
    }
    
    - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
        static NSString *cellID = @"haha";
        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellID];
        if (!cell) {
            cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:cellID];
        }
        
        BMKPoiInfo *model=[self.dataArr objectAtIndex:indexPath.row];
        cell.textLabel.text=model.name;
        cell.detailTextLabel.text=model.address;
        cell.detailTextLabel.textColor=[UIColor grayColor];
        if (self.currentSelectLocationIndex==indexPath.row){
           cell.accessoryType=UITableViewCellAccessoryCheckmark;
       }
      else{
         cell.accessoryType=UITableViewCellAccessoryNone;
      }    


        return cell;
    }
    
    - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
        
    }

6、currentCoordinate的set方法，用于反geo检索

    - (void)setCurrentCoordinate:(CLLocationCoordinate2D)currentCoordinate{
        _currentCoordinate=currentCoordinate;
        BMKReverseGeoCodeOption *reverseGeocodeSearchOption = [[BMKReverseGeoCodeOption alloc]init];
        reverseGeocodeSearchOption.reverseGeoPoint = currentCoordinate;
        BOOL flag = [_geocodesearch reverseGeoCode:reverseGeocodeSearchOption];
        if(flag)
        {
            NSLog(@"反geo检索发送成功");
        }
        else
        {
            NSLog(@"反geo检索发送失败");
        }
    
    }

7、#pragma mark - 地图代理相关

    /**
     *在地图View将要启动定位时，会调用此函数
     */
    - (void)willStartLocatingUser
    {
        NSLog(@"start locate");
    }
    
    /**
     *用户方向更新后，会调用此函数
     *@param userLocation 新的用户位置
     */
    - (void)didUpdateUserHeading:(BMKUserLocation *)userLocation
    {
        [self.mapView updateLocationData:userLocation];
        //    NSLog(@"heading is %@",userLocation.heading);
    }
    
    /**
     *用户位置更新后，会调用此函数
     *@param userLocation 新的用户位置
     */
    - (void)didUpdateBMKUserLocation:(BMKUserLocation *)userLocation
    {
        isFirstLocation=NO;
        [self.mapView  updateLocationData:userLocation];
        self.currentCoordinate = userLocation.location.coordinate;
        
        NSLog(@"地理位置信息 %f %f",self.currentCoordinate.latitude,self.currentCoordinate.longitude);
        
        if (self.currentCoordinate.latitude!=0)
        {
            [self.localService stopUserLocationService];
        }
    }
    
    /**
     *在地图View停止定位后，会调用此函数
     */
    - (void)didStopLocatingUser
    {
        NSLog(@"stop locate");
    }
    
    /**
     *定位失败后，会调用此函数
     *@param error 错误号，参考CLError.h中定义的错误号
     */
    - (void)didFailToLocateUserWithError:(NSError *)error
    {
        NSLog(@"location error");
        
    }
    
    - (void)mapView:(BMKMapView *)mapView onClickedMapBlank:(CLLocationCoordinate2D)coordinate
    {
        NSLog(@"map view: click blank");
    }
    - (void)mapView:(BMKMapView *)mapView regionDidChangeAnimated:(BOOL)animated
    {
        if (!isFirstLocation)
        {
    //        CLLocationCoordinate2D tt =[mapView convertPoint:self.centerCallOutImageView.center toCoordinateFromView:self.centerCallOutImageView];
    //        self.currentCoordinate=tt;
        }
        
    }

8.geo检索代理

    #pragma mark - BMKGeoCodeSearchDelegate

    /**
     *返回地址信息搜索结果
     *@param searcher 搜索对象
     *@param result 搜索结BMKGeoCodeSearch果
     *@param error 错误号，@see BMKSearchErrorCode
     */
    - (void)onGetGeoCodeResult:(BMKGeoCodeSearch *)searcher result:(BMKGeoCodeResult *)result errorCode:(BMKSearchErrorCode)error
    {
        NSLog(@"返回地址信息搜索结果,失败-------------");
    }
    
    /**
     *返回反地理编码搜索结果
     *@param searcher 搜索对象
     *@param result 搜索结果
     *@param error 错误号，@see BMKSearchErrorCode
     */
    
    - (void)onGetReverseGeoCodeResult:(BMKGeoCodeSearch *)searcher result:(BMKReverseGeoCodeResult *)result errorCode:(BMKSearchErrorCode)error
    {
        if (error == BMK_SEARCH_NO_ERROR)
        {
            [self.dataArr removeAllObjects];
            [self.dataArr addObjectsFromArray:result.poiList];
            
            if (isFirstLocation)
            {
                //把当前定位信息自定义组装 放进数组首位
                BMKPoiInfo *first =[[BMKPoiInfo alloc]init];
                first.address=result.address;
                first.name=@"[当前位置]";
                first.pt=result.location;
                first.city=result.addressDetail.city;
                [self.dataArr insertObject:first atIndex:0];
            }
            
            [self.tableView reloadData];
            
        }
    }