iOS中设置百度地图自定义标注图片，自定义泡泡

 #pragma mark - BMKMapViewDelegate

 // 根据anntation生成对应的View

 - (BMKAnnotationView *)mapView:(BMKMapView *)mapView viewForAnnotation:(id )annotation

 {

     //普通annotation

     NSString *AnnotationViewID = @"ClusterMark";

     ClusterAnnotation *cluster = (ClusterAnnotation*)annotation;

     ClusterAnnotationView *annotationView = [[ClusterAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:AnnotationViewID];

     annotationView.size = cluster.size;

     annotationView.canShowCallout = NO;//在点击大头针的时候会弹出那个黑框框

     annotationView.draggable = NO;//禁止标注在地图上拖动

     annotationView.annotation = cluster;

 //    annotationView.image=[UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:annotation.subtitle]]];

     annotationView.centerOffset=CGPointMake(0,0);



     UIView *viewForImage=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 110, 110)];

     UIImageView *imageview=[[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 110, 110)];

     [imageview setImage:[UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:annotation.subtitle]]]];

     imageview.layer.masksToBounds=YES;

     imageview.layer.cornerRadius = 10;

     [viewForImage addSubview:imageview];

     annotationView.image=[self getImageFromView:viewForImage];

     return annotationView;

 }


 -(UIImage *)getImageFromView:(UIView *)view{

     UIGraphicsBeginImageContext(view.bounds.size);

     [view.layer renderInContext:UIGraphicsGetCurrentContext()];

     UIImage *image = UIGraphicsGetImageFromCurrentImageContext();

     UIGraphicsEndImageContext();

     return image;

 }


 //气泡框左侧显示的View,可自定义
 annotationView.leftCalloutAccessoryView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"icon_location.png"]];
 //气泡框右侧显示的View 可自定义
 annotationView.rightCalloutAccessoryView =selectButton;
 //让标注在进入界面时就处于弹出气泡框的状态
 [annotationView setSelected:YES animated:YES];