示例图
关于怎么导入百度地图SDK与创建应用就不多说了，百度的文档应该比我说的更详细，下面直接正文吧
1.首先地图的初始化
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
}
/// 地图
- (void)setupView {
_mapView = [[BMKMapView alloc]init];
[_mapView setMapType:BMKMapTypeStandard];// 地图类型 ->卫星／标准、
_mapView.showsUserLocation = YES;
_mapView.gesturesEnabled = YES;
_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
_mapView.frame = self.view.bounds;
[self.view addSubview:_mapView];
}
// 地图的初始化
- (void)setupMapService {
_locService = [[BMKLocationService alloc]init];
_locService.delegate = self;
_locService.desiredAccuracy = kCLLocationAccuracyBest;
_locService.distanceFilter = 10;//大于100米
[_locService startUserLocationService];
_geoCodeSerch = [[BMKGeoCodeSearch alloc] init];
_geoCodeSerch.delegate = self;
_mapView.showsUserLocation = NO;//先关闭显示的定位图层
_mapView.userTrackingMode = BMKUserTrackingModeFollow;//设置定位的状态
_mapView.showsUserLocation = YES;//显示定位图层
_clusterManager = [[BMKClusterManager alloc] init];
//初始化检索对象
self.districtSearch = [[BMKDistrictSearch alloc] init];
//设置delegate，用于接收检索结果
self.districtSearch.delegate = self;
//在此处理正常结果
_clusterCaches = [[NSMutableArray alloc] init];
for (NSInteger i = 3; i < 22; i++) {
[_clusterCaches addObject:[NSMutableArray array]];
}
}
2.地图的开始与加载完毕
/**
*地图初始化完毕时会调用此接口
*@param mapView 地图View
*/
- (void)mapViewDidFinishLoading:(BMKMapView *)mapView {
BMKLocationViewDisplayParam *displayParam = [[BMKLocationViewDisplayParam alloc]init];
displayParam.isAccuracyCircleShow = NO;//精度圈是否显示
[_mapView updateLocationViewWithParam:displayParam];
BMKCoordinateRegion region ;//表示范围的结构体
region.center = _mapView.centerCoordinate;//中心点
self.cCoordinate = _mapView.centerCoordinate;//中心点
region.span.latitudeDelta = 0.002;//经度范围（设置为0.1表示显示范围为0.2的纬度范围）
region.span.longitudeDelta = 0.002;//纬度范围
[_mapView setRegion:region animated:YES];
[self updateClusters];
}
/**
*地图渲染每一帧画面过程中，以及每次需要重绘地图时（例如添加覆盖物）都会调用此接口
*@param mapView 地图View
*@param status 此时地图的状态
*/
- (void)mapView:(BMKMapView *)mapView onDrawMapFrame:(BMKMapStatus *)status {
if (_clusterZoom != 0 && _clusterZoom != (NSInteger)mapView.zoomLevel) {
[self updateClusters];
}
}
3.地图的位置发生变化
- (void)mapView:(BMKMapView *)mapView regionDidChangeAnimated:(BOOL)animated {
//屏幕坐标转地图经纬度
CLLocationCoordinate2D MapCoordinate = [_mapView convertPoint:_mapView.center toCoordinateFromView:_mapView];
if (_reverseGeoCodeOption==nil) {
//初始化反地理编码类
_reverseGeoCodeOption= [[BMKReverseGeoCodeOption alloc] init];
}
//需要逆地理编码的坐标位置
_reverseGeoCodeOption.reverseGeoPoint =MapCoordinate;
[_geoCodeSerch reverseGeoCode:_reverseGeoCodeOption];
// 如果你是请求自己后台的数据可以在这里请求，可以省去下面检索回来的数据，由于我的是demo，所以下面是必须要的
BMKNearbySearchOption *option = [[BMKNearbySearchOption alloc]init];
option.pageIndex = 1;
option.pageCapacity = 10;
option.location = mapView.centerCoordinate;
option.keyword = @"小吃";
BOOL flag = [self.poiSearch poiSearchNearBy:option];
if(flag) {
NSLog(@"周边检索发送成功");
}else{
NSLog(@"周边检索发送失败");
}
}
// 当地图发生改变之后，检索并
//实现PoiSearchDeleage处理回调结果
- (void)onGetPoiResult:(BMKPoiSearch*)searcher result:(BMKPoiResult*)poiResultList errorCode:(BMKSearchErrorCode)error
{
if (error == BMK_SEARCH_NO_ERROR) {
//在此处理正常结果
}
else if (error == BMK_SEARCH_AMBIGUOUS_KEYWORD){
//当在设置城市未找到结果，但在其他城市找到结果时，回调建议检索城市列表
// result.cityList;
NSLog(@"起始点有歧义");
} else {
NSLog(@"抱歉，未找到结果");
}
// 清空缓存数据
[_clusterManager clearClusterItems];
for (BMKPoiInfo *poiInfo in poiResultList.poiInfoList) {
XJCluster *cluster = [[XJCluster alloc] init];
cluster.name = poiInfo.name;
cluster.pt = poiInfo.pt;
// 添加数据
[self addAnnoWithPT:cluster];
}
}
4.更新点聚合状态
- (void)updateClusters {
_clusterZoom = (NSInteger)_mapView.zoomLevel;
@synchronized(_clusterCaches) {
NSMutableArray *clusters = [NSMutableArray array];
dispatch_async(dispatch_get_global_queue(0, 0), ^{
///获取聚合后的标注
__block NSArray *array = [_clusterManager getClusters:_clusterZoom];
dispatch_async(dispatch_get_main_queue(), ^{
for (BMKCluster *item in array) {
XJClusterAnnotation *annotation = [[XJClusterAnnotation alloc] init];
annotation.coordinate = item.coordinate;
annotation.size = item.size;
annotation.title = item.title;
annotation.cluster = item.cluster;
[clusters addObject:annotation];
}
[_mapView removeOverlays:_mapView.overlays];
[_mapView removeAnnotations:_mapView.annotations];
[_mapView addAnnotations:clusters];
});
});
}
}
demo：https://github.com/SingGitHub/BMKMapClusterView
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