[英]How to hide MKAnnotationView?
I have a problem hiding a MKAnnotationView
after some time [4 seconds]. 我在一段时间[4秒]后隐藏
MKAnnotationView
遇到问题。 I have a MKMapView
named mapView which shows user location with MKUserLocation
and I have added a UIButtonTypeDetailDisclosure
to his MKAnnotationView
. 我有一个名为mapView的
MKMapView
,它使用MKUserLocation
显示用户位置,并且向他的MKAnnotationView
添加了UIButtonTypeDetailDisclosure
。 The MKAnnotationView
automatically gets selected but I want to deselect it after some time with a NSTimer
. MKAnnotationView
自动被选中,但是我想在一段时间后使用NSTimer
取消选择它。 I have correctly implemented the timer and the void method gets called correctly [I have checked it with a NSLog
] but I don't know what code to write in the void method to make the annotation disappear. 我已经正确实现了计时器,并且正确调用了void方法[已使用
NSLog
进行了检查],但是我不知道在void方法中编写什么代码以使注释消失。
this is my code: 这是我的代码:
- (void)mapView:(MKMapView *)mapView didAddAnnotationViews:(NSArray *)views
{
for (MKAnnotationView* view in views)
{
if ([view.annotation isKindOfClass:[MKUserLocation class]])
{
view.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
[self.mapView selectAnnotation:view.annotation animated:YES];
}
mKAnnotationHideTimer = [NSTimer scheduledTimerWithTimeInterval:4.0
target:self
selector:@selector(hideMKAnnotation:)
userInfo:nil
repeats:NO];
}
}
- (void)hideMKAnnotation:(NSArray *)views
{
// What code here?
}
Can someone help me writing the code? 有人可以帮我编写代码吗?
You need to pass your view.annotation as userInfo object and implement hideMKAnnotation as 您需要将view.annotation作为userInfo对象传递,并将hideMKAnnotation实现为
- (void)hideMKAnnotation:(NSTimer*)timer
{
id aview = timer.userInfo;
[self.mapView deselectAnnotation:aview animated:YES];
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.