1.model类里面添加index
#import <MAMapKit/MAMapKit.h>
#import <AMapSearchKit/AMapCommonObj.h>
@interface POIAnnotation : NSObject <MAAnnotation>
- (id)initWithPOI:(AMapPOI *)poi;
@property (nonatomic, readonly, strong) AMapPOI *poi;
@property(assign,nonatomic)NSInteger idx;
@property (nonatomic, readonly) CLLocationCoordinate2D coordinate;
/*!
@brief 获取annotation标题
@return 返回annotation的标题信息
*/
- (NSString *)title;
/*!
@brief 获取annotation副标题
@return 返回annotation的副标题信息
*/
- (NSString *)subtitle;
/*!
@brief 获取经纬度
@return 返回annotation的经纬度
*/
- (AMapGeoPoint *)location;
@end
2.给index赋值
/* POI 搜索回调. */
- (void)onPOISearchDone:(AMapPOISearchBaseRequest *)request response:(AMapPOISearchResponse *)response
{
if (response.pois.count == 0)
{
return;
}
NSMutableArray *poiAnnotations = [NSMutableArray arrayWithCapacity:response.pois.count];
[response.pois enumerateObjectsUsingBlock:^(AMapPOI *obj, NSUInteger idx, BOOL *stop) {
POIAnnotation *annotation =[[POIAnnotation alloc] initWithPOI:obj];
annotation.idx = idx;
[poiAnnotations addObject:annotation];
}];
/* 将结果以annotation的形式加载到地图上. */
[self.mapView addAnnotations:poiAnnotations];
/* 如果只有一个结果，设置其为中心点. */
if (poiAnnotations.count == 1)
{
[self.mapView setCenterCoordinate:[poiAnnotations[0] coordinate]];
}
/* 如果有多个结果, 设置地图使所有的annotation都可见. */
else
{
[self.mapView showAnnotations:poiAnnotations animated:NO];
}
}
3.取值
- (MAAnnotationView *)mapView:(MAMapView *)mapView viewForAnnotation:(id<MAAnnotation>)annotation
{
if ([annotation isKindOfClass:[POIAnnotation class]])
{
static NSString *poiIdentifier = @"poiIdentifier";
MAPinAnnotationView *poiAnnotationView = (MAPinAnnotationView*)[self.mapView dequeueReusableAnnotationViewWithIdentifier:poiIdentifier];
if (poiAnnotationView == nil)
{
poiAnnotationView = [[MAPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:poiIdentifier];
}
poiAnnotationView.image = [UIImage imageNamed:[NSString stringWithFormat:@"poi_marker_%ld.png",((POIAnnotation*)annotation).idx]];
poiAnnotationView.canShowCallout = NO;
return poiAnnotationView;
}
return nil;
}