iOS 高德地图 地理围栏

地理围栏是一个（或多个）圆形的地理边界作为虚拟围栏，当设备进入、离开该区域时，可以接收到消息通知。

地理围栏的半径数值需要大于0，如果 APP 退出，围栏随即失效。

//使用说明//包含的头文件#import <MAMapKit/MAMapKit.h>#import <AMapLocationKit/AMapLocationKit.h>//视图控制器需要遵循的协议<MAMapViewDelegate, AMapLocationManagerDelegate>//视图控制器需要的属性@property (nonatomic, strong) MAMapView *mapView;@property (nonatomic, strong) AMapLocationManager *locationManager;@property (nonatomic, strong) NSMutableArray *regions;//应初始化的内容- (void)viewDidLoad{    [super viewDidLoad];    [self.view setBackgroundColor:[UIColor whiteColor]];    [self initMapView];    [self configLocationManager];    self.regions = [[NSMutableArray alloc] init];    self.mapView.showsUserLocation = YES;}//初始化地图- (void)initMapView{    if (self.mapView == nil)    {        self.mapView = [[MAMapView alloc] initWithFrame:self.view.bounds];        [self.mapView setDelegate:self];        [self.view addSubview:self.mapView];    }}//初始化位置管理器- (void)configLocationManager{    self.locationManager = [[AMapLocationManager alloc] init];    [self.locationManager setDelegate:self];    //设置期望定位精度    [self.locationManager setDesiredAccuracy:kCLLocationAccuracyHundredMeters];    //设置不允许系统暂停定位    [self.locationManager setPausesLocationUpdatesAutomatically:NO];    //设置允许在后台定位    [self.locationManager setAllowsBackgroundLocationUpdates:YES];}- (void)viewWillAppear:(BOOL)animated{    [super viewWillAppear:animated];    self.navigationController.toolbar.translucent   = YES;    self.navigationController.toolbarHidden         = YES;}- (void)viewDidAppear:(BOOL)animated{    [super viewDidAppear:animated];    [self getCurrentLocation];}//视图消失时应实现的内容- (void)viewDidDisappear:(BOOL)animated{    [super viewDidDisappear:animated];    //停止地理围栏    [self.regions enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {        [self.locationManager stopMonitoringForRegion:(AMapLocationRegion *)obj];    }];}//核心方法//创建圆形的定位区域cirRegion200AMapLocationCircleRegion *cirRegion200 = [[AMapLocationCircleRegion alloc] initWithCenter:coordinate                                                                                       radius:200.0                                                                                   identifier:@"circleRegion200"];//创建圆形的定位区域cirRegion300AMapLocationCircleRegion *cirRegion300 = [[AMapLocationCircleRegion alloc] initWithCenter:coordinate                                                                                       radius:300.0                                                                                   identifier:@"circleRegion300"];//添加地理围栏[self.locationManager startMonitoringForRegion:cirRegion200];[self.locationManager startMonitoringForRegion:cirRegion300];//保存地理围栏[self.regions addObject:cirRegion200];[self.regions addObject:cirRegion300];//添加OverlayMACircle *circle200 = [MACircle circleWithCenterCoordinate:coordinate radius:200.0];MACircle *circle300 = [MACircle circleWithCenterCoordinate:coordinate radius:300.0];[self.mapView addOverlay:circle200];[self.mapView addOverlay:circle300];[self.mapView setVisibleMapRect:circle300.boundingMapRect];//接收地理围栏回调- (void)amapLocationManager:(AMapLocationManager *)manager didEnterRegion:(AMapLocationRegion *)region{    NSLog(@"进入围栏:%@", region);}- (void)amapLocationManager:(AMapLocationManager *)manager didExitRegion:(AMapLocationRegion *)region{    NSLog(@"走出围栏:%@", region);}//--------------------------------------------.h#import <UIKit/UIKit.h>#import <MAMapKit/MAMapKit.h>#import <AMapLocationKit/AMapLocationKit.h>@interface MonitoringRegionViewController : UIViewController@property (nonatomic, strong) MAMapView *mapView;@property (nonatomic, strong) AMapLocationManager *locationManager;@end.m#import "MonitoringRegionViewController.h"@interface MonitoringRegionViewController ()<MAMapViewDelegate, AMapLocationManagerDelegate>@property (nonatomic, strong) NSMutableArray *regions;@end@implementation MonitoringRegionViewController#pragma mark - Add Regions- (void)getCurrentLocation{    //获取一次用户的当前位置，方便添加地理围栏    __weak typeof(self) weakSelf = self;    [self.locationManager requestLocationWithReGeocode:NO completionBlock:^(CLLocation *location, AMapLocationReGeocode *regeocode, NSError *error) {        [weakSelf addCircleReionForCoordinate:location.coordinate];    }];}- (void)addCircleReionForCoordinate:(CLLocationCoordinate2D)coordinate{    //创建圆形地理围栏    AMapLocationCircleRegion *cirRegion200 = [[AMapLocationCircleRegion alloc] initWithCenter:coordinate                                                                                       radius:200.0                                                                                   identifier:@"circleRegion200"];    AMapLocationCircleRegion *cirRegion300 = [[AMapLocationCircleRegion alloc] initWithCenter:coordinate                                                                                       radius:300.0                                                                                   identifier:@"circleRegion300"];    //添加地理围栏    [self.locationManager startMonitoringForRegion:cirRegion200];    [self.locationManager startMonitoringForRegion:cirRegion300];    //保存地理围栏    [self.regions addObject:cirRegion200];    [self.regions addObject:cirRegion300];    //添加地理围栏对应的Overlay，方便查看    MACircle *circle200 = [MACircle circleWithCenterCoordinate:coordinate radius:200.0];    MACircle *circle300 = [MACircle circleWithCenterCoordinate:coordinate radius:300.0];    [self.mapView addOverlay:circle200];    [self.mapView addOverlay:circle300];    [self.mapView setVisibleMapRect:circle300.boundingMapRect];}#pragma mark - Action Handle- (void)configLocationManager{    self.locationManager = [[AMapLocationManager alloc] init];    [self.locationManager setDelegate:self];    //设置期望定位精度    [self.locationManager setDesiredAccuracy:kCLLocationAccuracyHundredMeters];    //设置不允许系统暂停定位    [self.locationManager setPausesLocationUpdatesAutomatically:NO];    //设置允许在后台定位    [self.locationManager setAllowsBackgroundLocationUpdates:YES];}#pragma mark - AMapLocationManagerDelegate- (void)amapLocationManager:(AMapLocationManager *)manager didFailWithError:(NSError *)error{    NSLog(@"locationError:{%ld;%@}", (long)error.code, error.localizedDescription);}- (void)amapLocationManager:(AMapLocationManager *)manager didStartMonitoringForRegion:(AMapLocationRegion *)region{    NSLog(@"didStartMonitoringForRegion:%@", region);}- (void)amapLocationManager:(AMapLocationManager *)manager monitoringDidFailForRegion:(AMapLocationRegion *)region withError:(NSError *)error{    NSLog(@"monitoringDidFailForRegion:%@", error.localizedDescription);}- (void)amapLocationManager:(AMapLocationManager *)manager didEnterRegion:(AMapLocationRegion *)region{    NSLog(@"didEnterRegion:%@", region);}- (void)amapLocationManager:(AMapLocationManager *)manager didExitRegion:(AMapLocationRegion *)region{    NSLog(@"didExitRegion:%@", region);}- (void)amapLocationManager:(AMapLocationManager *)manager didDetermineState:(AMapLocationRegionState)state forRegion:(AMapLocationRegion *)region{    NSLog(@"didDetermineState:%@; state:%ld", region, (long)state);}#pragma mark - Initialization- (void)initMapView{    if (self.mapView == nil)    {        self.mapView = [[MAMapView alloc] initWithFrame:self.view.bounds];        [self.mapView setDelegate:self];        [self.view addSubview:self.mapView];    }}#pragma mark - Life Cycle- (void)viewDidLoad{    [super viewDidLoad];    [self.view setBackgroundColor:[UIColor whiteColor]];    [self initMapView];    [self configLocationManager];    self.regions = [[NSMutableArray alloc] init];    self.mapView.showsUserLocation = YES;}- (void)viewWillAppear:(BOOL)animated{    [super viewWillAppear:animated];    self.navigationController.toolbar.translucent   = YES;    self.navigationController.toolbarHidden         = YES;}- (void)viewDidAppear:(BOOL)animated{    [super viewDidAppear:animated];    [self getCurrentLocation];}- (void)viewDidDisappear:(BOOL)animated{    [super viewDidDisappear:animated];    //停止地理围栏    [self.regions enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {        [self.locationManager stopMonitoringForRegion:(AMapLocationRegion *)obj];    }];}#pragma mark - MAMapViewDelegate//根据overlay生成对应的Renderer(图像渲染)- (MAOverlayRenderer *)mapView:(MAMapView *)mapView rendererForOverlay:(id <MAOverlay>)overlay{    if ([overlay isKindOfClass:[MAPolygon class]])    {        MAPolygonRenderer *polylineRenderer = [[MAPolygonRenderer alloc] initWithPolygon:overlay];        polylineRenderer.lineWidth = 5.0f;        polylineRenderer.strokeColor = [UIColor redColor];        return polylineRenderer;    }    else if ([overlay isKindOfClass:[MACircle class]])    {        MACircleRenderer *circleRenderer = [[MACircleRenderer alloc] initWithCircle:overlay];        circleRenderer.lineWidth = 5.0f;        circleRenderer.strokeColor = [UIColor blueColor];        return circleRenderer;    }    return nil;}@end