我希望 GMSMarker 移动到相机。这是我的代码
-(void)addMap {
GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:latitude
longitude:longitude
zoom:15];
GMSMapView *mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];
CGRect newFrame = CGRectMake( 0, 0, [Util window_width],[Util window_height]);
mapView = [GMSMapView mapWithFrame:newFrame camera:camera];
mapView.delegate = self;
mapView.myLocationEnabled = YES;
GMSMarker *marker = [[GMSMarker alloc] init];
marker.position = camera.target;
marker.snippet = @"Hello World";
marker.icon =[Util imageWithImage:[UIImage imageNamed"set_address.png"] scaledToSize:CGSizeMake(170, 65)];
marker.appearAnimation = kGMSMarkerAnimationPop;
marker.map = mapView;
[self.MapContentView addSubview:mapView];
}
我在 map 上有一个标记,如果用户不滚动 map ,它通常位于 map 的中心。
当用户滚动 map 时,我希望标记与相机一起移动到新位置,因此它始终位于 map 的中心。
我试试下面的代码
-(BOOL) mapViewGMSMapView *) mapView didTapMarkerGMSMarker *)marker
{
[mapView animateToLocation:marker.position];
return YES;
}
- (void)mapViewGMSMapView *)mapView didChangeCameraPositionGMSCameraPosition *)position
{
marker.position = camera.target;
marker.appearAnimation = kGMSMarkerAnimationPop;
NSLog(@"camera.target.latitude %f,%f",camera.target.latitude,camera.target.longitude);
latitude=camera.target.latitude;
longitude=camera.target.longitude;
}
你可以试试这个:
- (void)mapViewGMSMapView *)mapView willMoveBOOL)gesture
{
[self recenterMarkerInMapView:mapView];
}
- (void)mapViewGMSMapView *)mapView didChangeCameraPositionGMSCameraPosition *)position
{
[self recenterMarkerInMapView:mapView];
}
- (void)recenterMarkerInMapViewGMSMapView *)mapView
{
// Get the center of the mapView
CGPoint center = [mapView convertPoint:mapView.center fromView:self.view];
// Reset the marker position so it moves without animation
[mapView clear];
marker.appearAnimation = kGMSMarkerAnimationNone;
marker.position = [mapView.projection coordinateForPoint:center];
marker.map = mapView;
}
关于ios - 如何同步移动标记和相机并始终将标记放置在相机位置IOS的中心,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/31375672/
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