ios mapkit通过点击地图closures注释标注

我有一个mapkit应用程序，它将注释放在地图上，当你按下它时，它会显示标题属性的标注。

这工作正常，但用户不能closures它们。 他们保持开放，直到他们点击另一个注释。 我不能让用户可以在地图上点击其他地方（或再次点击注释）closures它吗？

我有一种感觉，这是默认设置，所以也许我正在做的东西是填塞？ 我有一个手势识别器，我用它来检测一些地图水龙头

UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTap:)]; tap.numberOfTapsRequired = 1; [self.mapView addGestureRecognizer: tap]; 

这引发了这个问题：

 - (void)handleTap:(UITapGestureRecognizer *)sender { if (sender.state == UIGestureRecognizerStateEnded) { CGPoint tapPoint = [sender locationInView:sender.view.superview]; CLLocationCoordinate2D coordinate = [self.mapView convertPoint: tapPoint toCoordinateFromView: self.mapView]; if (pitStopMode && !pitStopMade){ pitStopMade = YES; InfoAnnotation *annotation = [[InfoAnnotation alloc] initNewPitstopWithCoordinate:coordinate]; NSLog(@" Created Pit Stop"); annotation.draggable = NO; //place it on the map [self.mapView addAnnotation: annotation]; self.instructionLabel.text = @"Tap button again to remove"; annotation.creatorId = self.localUser.deviceId; //send it to the server [annotation updateLocationWithServerForConvoy: self.convoyCode]; [annotation release]; } if (hazardMode && !hazardMade){ hazardMade = YES; InfoAnnotation *annotation = [[InfoAnnotation alloc] initNewHazardWithCoordinate:coordinate]; NSLog(@" Created Hazard"); annotation.draggable = NO; //place it on the map [self.mapView addAnnotation: annotation]; self.instructionLabel.text = @"Tap button again to remove"; annotation.creatorId = self.localUser.deviceId; //send it to the server [annotation updateLocationWithServerForConvoy: self.convoyCode]; [annotation release]; } } 

}

我还有什么要让这些水龙头去mapview？ 在注释上拖动和敲击工作正常，但我不知道这是什么原因造成的？

有没有我失踪的选项，还是我必须尝试手动实施这个？

Answer 1

您可以实现UIGestureRecognizerDelegate方法gestureRecognizer:shouldRecognizeSimultaneouslyWithGestureRecognizer:并返回YES （以便地图视图自己的轻gestureRecognizer:shouldRecognizeSimultaneouslyWithGestureRecognizer:手势识别器也将执行其方法）。

首先，将协议声明添加到您的视图控制器的接口（以避免编译器警告）：

 @interface MyViewController : UIViewController <UIGestureRecognizerDelegate> 

接下来，在手势识别器上设置delegate属性：

 tap.delegate = self; 

最后，实施方法：

 - (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer: (UIGestureRecognizer *)otherGestureRecognizer { return YES; } 

如果由于某种原因handleTap: ，则可以在handleTap:方法的顶部手动取消select当前选定的任何注释：

 for (id<MKAnnotation> ann in mapView.selectedAnnotations) { [mapView deselectAnnotation:ann animated:NO]; } 

即使地图视图一次最多只能select一个注释， selectedAnnotations属性也是一个NSArray所以我们通过它循环。

Answer 2

安娜解释得很好。我也想用代码来解释。 你可以这样做

  UITapGestureRecognizer *tapMap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(closeCallout:)]; [self.mapView addGestureRecognizer:tapMap]; -(void) closeCallout:(UIGestureRecognizer*) recognizer { for (id<MKAnnotation> ann in mapView.selectedAnnotations) { [mapView deselectAnnotation:ann animated:NO]; } }