百度地图的poi如何调用

随手写一个DEMO：

- (void)viewDidLoad
{
    [super viewDidLoad];
    _search = [[BMKSearch alloc]init];
    _search.delegate = self;

    // 设置地图级别
    [_mapView setZoomLevel:13];
    _mapView.isSelectedAnnotationViewFront = YES;
    //发起POI检索
    BOOL flag = [_search poiSearchInCity:@"武汉" withKey:@"武汉协和医院" pageIndex:0];
    if(flag){
        NSLog(@"success!");
    }else{
        NSLog(@"error!");
    }
}
- (void)onGetPoiResult:(NSArray*)poiResultList searchType:(int)type errorCode:(int)error
{
    // 清楚屏幕中所有的annotation
    NSArray* array = [NSArray arrayWithArray:_mapView.annotations];
    [_mapView removeAnnotations:array];

    BMKPointAnnotation* item = [[BMKPointAnnotation alloc]init];
    // 30.5907940162,114.2823383453
    CLLocationCoordinate2D coor;
    coor.latitude = 30.5907940162;
    coor.longitude = 114.2823383453;

    item.coordinate = coor;
    item.title = @"武汉协和医院";
    [_mapView addAnnotation:item];
    _mapView.centerCoordinate = coor;
}
/**
 *根据anntation生成对应的View
 *@param mapView 地图View
 *@param annotation 指定的标注
 *@return 生成的标注View
 */
- (BMKAnnotationView *)mapView:(BMKMapView *)view viewForAnnotation:(id <BMKAnnotation>)annotation
{
    // 生成重用标示identifier
    NSString *AnnotationViewID = @"xieheMark";

    // 检查是否有重用的缓存
    BMKAnnotationView* annotationView = [view dequeueReusableAnnotationViewWithIdentifier:AnnotationViewID];

    // 缓存没有命中，自己构造一个，一般首次添加annotation代码会运行到此处
    if (annotationView == nil) {
        annotationView = [[BMKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:AnnotationViewID];
        ((BMKPinAnnotationView*)annotationView).pinColor = BMKPinAnnotationColorRed;
        // 设置重天上掉下的效果(annotation)
        ((BMKPinAnnotationView*)annotationView).animatesDrop = YES;
    }

    // 设置位置
    annotationView.centerOffset = CGPointMake(0, -(annotationView.frame.size.height * 0.5));
    annotationView.annotation = annotation;
    // 单击弹出泡泡，弹出泡泡前提annotation必须实现title属性
    annotationView.canShowCallout = YES;
    // 设置是否可以拖拽
    annotationView.draggable = NO;

    return annotationView;
}