iOS 百度地图当前定位

image.png

#import "JXActivityScopeTwoVC.h"
#import //引入地图功能所有的头文件
#import //引入定位功能所有的头文件
//#import //引入检索功能所有的头文件
//#import //引入base相关所有的头文件
//#import //引入计算工具所有的头文件


@interface JXActivityScopeTwoVC ()

@property (nonatomic, strong) BMKMapView *mapView;

@property (nonatomic, strong) BMKLocationManager *locationManager; //定位对象
@property (nonatomic, strong) BMKLocationViewDisplayParam *param; //定位图层自定义样式参数
@property (nonatomic, strong) BMKUserLocation *userLocation; //当前位置对象



@end

@implementation JXActivityScopeTwoVC


-(void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    [_mapView viewWillAppear];
}
-(void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
    [_mapView viewWillDisappear];
}

- (void)viewDidLoad {
    [super viewDidLoad];
    [self.view addSubview:self.myNavigationBar];
    self.myNavigationBar.titleLabel.text = @"活动范围";
    
    [self setupMapView];
    [self setupAppearance];
    [self setupLocationManager];
}
- (void)setupAppearance {
    
    //关闭侧滑返回
    id traget = self.navigationController.interactivePopGestureRecognizer.delegate;
    UIPanGestureRecognizer * pan = [[UIPanGestureRecognizer alloc]initWithTarget:traget action:nil];
    [self.view addGestureRecognizer:pan];
    
    //复位
    UIButton * resetLoca = [UIButton buttonWithType:UIButtonTypeCustom];
    [resetLoca setImage:[UIImage imageNamed:@"ic_greeting_checked"] forState:UIControlStateNormal];
    [resetLoca addTarget:self action:@selector(resetLocation) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:resetLoca];
    [resetLoca mas_makeConstraints:^(MASConstraintMaker *make) {
        make.size.mas_equalTo(CGSizeMake(30, 30));
        make.right.bottom.equalTo(_mapView).offset(-30);
    }];
    
}

- (void)setupMapView {
    _mapView = [[BMKMapView alloc]initWithFrame:CGRectMake(0, JX_SCREEN_TOP, JX_SCREEN_WIDTH, JX_SCREEN_HEIGHT-JX_SCREEN_TOP)];
    _mapView.delegate = self;
    [_mapView setZoomLevel:17];// 将当前地图显示缩放等级设置为17级
    //显示比例尺
//    _mapView.showMapScaleBar = YES;
    [self.view addSubview:_mapView];
    //显示定位图层
    _mapView.showsUserLocation = YES;
    _mapView.userTrackingMode = BMKUserTrackingModeNone;//设定定位模式
    //禁用平移手势
    _mapView.scrollEnabled = YES;
    //禁止双指拉伸缩放地图
    _mapView.zoomEnabled = YES;
    //禁止单指双击缩放地图
    _mapView.zoomEnabledWithTap= YES;
    //支持旋转
    _mapView.rotateEnabled = YES;
    //支持俯仰角
    _mapView.overlookEnabled = YES;
}

- (void)setupLocationManager {
    //开启定位服务
    [self.locationManager startUpdatingLocation];
    //设置显示定位图层
    _mapView.showsUserLocation = YES;
    //配置定位图层个性化样式，初始化BMKLocationViewDisplayParam的实例
    BMKLocationViewDisplayParam *param = [[BMKLocationViewDisplayParam alloc] init];
    //设置定位图标(屏幕坐标)X轴偏移量为0
    param.locationViewOffsetX = 0;
    //设置定位图标(屏幕坐标)Y轴偏移量为0
    param.locationViewOffsetY = 0;
    //设置定位图层locationView在最上层(也可设置为在下层)
    param.locationViewHierarchy = LOCATION_VIEW_HIERARCHY_TOP;
    //设置显示精度圈
    param.isAccuracyCircleShow = YES;
    //更新定位图层个性化样式
    [_mapView updateLocationViewWithParam:param];
    self.param = param;
}

#pragma mark - 定位当前位置方法
///连续定位回调函数
//- (void)BMKLocationManager:(BMKLocationManager *)manager didUpdateLocation:(BMKLocation *)location orError:(NSError *)error {
//    if (error) {
//        NSLog(@"locError:{%ld - %@};", (long)error.code, error.localizedDescription);
//    }
//    if (!location) {
//        return;
//    }
//
//    self.userLocation.location = location.location;
//
//    // 显示定位点 必须设置地图的中心点，地图才会切换显示到定位位置
//    //_mapView.centerCoordinate = CLLocationCoordinate2DMake(24.496, 118.184);
//    _mapView.centerCoordinate = self.userLocation.location.coordinate;
//
//    //实现该方法，否则定位图标不出现
//    [_mapView updateLocationData:self.userLocation];
//
//}
////用户位置更新后，会调用此函数
- (void)didUpdateBMKUserLocation:(BMKUserLocation *)userLocation {
    NSLog(@"当前位置%f,%f",userLocation.location.coordinate.latitude,userLocation.location.coordinate.longitude);

    self.userLocation.location = userLocation.location;
    // 显示定位点 必须设置地图的中心点，地图才会切换显示到定位位置
    _mapView.centerCoordinate = userLocation.location.coordinate;
    //设置缩放比例，不设置一次，测试第一次定位时中心总显示在天安门
    _mapView.zoomLevel = 17;

    [_mapView updateLocationData:userLocation];

}

#pragma mark - 响应事件

//复位按钮事件
-(void)resetLocation {
    _mapView.centerCoordinate = self.userLocation.location.coordinate;
}


#pragma mark - Lazy loading
- (BMKLocationManager *)locationManager {
    if (!_locationManager) {
        //初始化BMKLocationManager(定位)的实例
        _locationManager = [[BMKLocationManager alloc] init];
        //设置BMKLocationService的代理
        _locationManager.delegate = self;
        //设定定位坐标系类型，默认为 BMKLocationCoordinateTypeGCJ02
        _locationManager.coordinateType = BMKLocationCoordinateTypeBMK09LL;
        //设定定位精度，默认为 kCLLocationAccuracyBest
        _locationManager.desiredAccuracy = kCLLocationAccuracyBest;
        //设定定位类型，默认为 CLActivityTypeAutomotiveNavigation
        _locationManager.activityType = CLActivityTypeAutomotiveNavigation;
        //指定定位是否会被系统自动暂停，默认为NO
        _locationManager.pausesLocationUpdatesAutomatically = NO;
        
        /**
         是否允许后台定位，默认为NO。只在iOS 9.0及之后起作用。
         设置为YES的时候必须保证 Background Modes 中的 Location updates 处于选中状态，否则会抛出异常。
         由于iOS系统限制，需要在定位未开始之前或定位停止之后，修改该属性的值才会有效果。
         */
        _locationManager.allowsBackgroundLocationUpdates = NO;
        /**
         指定单次定位超时时间,默认为10s，最小值是2s。注意单次定位请求前设置。
         注意: 单次定位超时时间从确定了定位权限(非kCLAuthorizationStatusNotDetermined状态)
         后开始计算。
         */
        _locationManager.locationTimeout = 10;
        
        //单次定位
        WS(weakSelf);
        [_locationManager requestLocationWithReGeocode:NO withNetworkState:NO completionBlock:^(BMKLocation * _Nullable location, BMKLocationNetworkState state, NSError * _Nullable error) {
            weakSelf.userLocation.location = location.location;
            
            // 显示定位点 必须设置地图的中心点，地图才会切换显示到定位位置
            _mapView.centerCoordinate = weakSelf.userLocation.location.coordinate;
            
            //实现该方法，否则定位图标不出现
            [_mapView updateLocationData:weakSelf.userLocation];
        }];
    }
    return _locationManager;
}

- (BMKUserLocation *)userLocation {
    if (!_userLocation) {
        //初始化BMKUserLocation的实例
        _userLocation = [[BMKUserLocation alloc] init];
    }
    return _userLocation;
}


@end