首先需要导入MapKit.framework。
如果需要加标注并且显示不同的图片。就需要自己定义类实现MKAnnotation协议。
在下面方法里面判断是那种类型然后显示不同的图片
- (MKAnnotationView*)mapView:(MKMapView*)mapView viewForAnnotation:(id)annotation{
if([annotationisKindOfClass:[YujuShangdianAnnotationclass]]) {
MKAnnotationView*annotationView =[self.mapViewdequeueReusableAnnotationViewWithIdentifier:@"CustomAnnotation"];
if(!annotationView) {
annotationView = [[MKAnnotationViewalloc]initWithAnnotation:annotation
reuseIdentifier:@"CustomAnnotation"] ;
annotationView.canShowCallout=NO;
annotationView.image= [UIImageimageNamed:@"mapyujushangdian"];
}
returnannotationView;
}elseif([annotationisKindOfClass:[YuchuanMaTouAnnotationclass]]) {
MKAnnotationView*annotationView =[self.mapViewdequeueReusableAnnotationViewWithIdentifier:@"CustomAnnotation"];
if(!annotationView) {
annotationView = [[MKAnnotationViewalloc]initWithAnnotation:annotation
reuseIdentifier:@"CustomAnnotation"] ;
annotationView.canShowCallout=NO;
annotationView.image= [UIImageimageNamed:@"mapyuchuanmatou"];
}
returnannotationView;
}elseif([annotationisKindOfClass:[YushichangAnnotationclass]]) {
MKAnnotationView*annotationView =[self.mapViewdequeueReusableAnnotationViewWithIdentifier:@"CustomAnnotation"];
if(!annotationView) {
annotationView = [[MKAnnotationViewalloc]initWithAnnotation:annotation
reuseIdentifier:@"CustomAnnotation"] ;
annotationView.canShowCallout=NO;
annotationView.image= [UIImageimageNamed:@"mapfangzi"];
}
returnannotationView;
}
returnnil;
}
判断一个Annotation是否在当前地图中可见
MKMapRectvisibleMapRect=self.mapView.visibleMapRect;
NSSet*visibleAnnotation=[self.mapViewannotationsInMapRect:visibleMapRect];
if([visibleAnnotationcontainsObject:anno]) {
}
将地图缩放到某个合适的位置 使一些Annotation同时可见
MKPointAnnotation*pointann=[[MKPointAnnotationalloc]init];
CLLocationCoordinate2Dcoorstart;
coorstart.latitude=40;
coorstart.longitude=115;
pointann.coordinate=coorstart;
[_mapViewaddAnnotation:pointann];
MKPointAnnotation*pointann2=[[MKPointAnnotationalloc]init];
CLLocationCoordinate2Dcoorstart2;
coorstart2.latitude=40;
coorstart2.longitude=116;
pointann2.coordinate=coorstart2;
[_mapViewaddAnnotation:pointann2];
[self.mapViewshowAnnotations:@[pointann,pointann2]animated:YES];
控制MapView动画的时间
[MKMapViewanimateWithDuration:0.8delay:0.0options:UIViewAnimationOptionCurveEaseInOutanimations:^{
[self.mapViewsetCenterCoordinate:anno.coordinateanimated:YES];
} completion:^(BOOLfinished) {
}];
