MKMapView setRegion如何停止动画 [英] MKMapView setRegion how to stop animation

问题描述

你能帮我吗?我需要停止MkMapView方法setRegion:region动画:true.我需要设置带有选项的新区域以使其停止动画. 谢谢.

can u help me? I need to stop MkMapView method setRegion:region animated: true. I need to set new region animated with option to stop it. Thanks.

推荐答案

如果您创建另一个动画，但所创建的动画区域不同于现有动画，则会使现有动画无效.注意:如果我尝试创建一个新动画，但是对于相同的visibleMapRect，iOS只会忽略它.

If you create another animation but for a different region than the existing one, this will invalidate the existing one. Note: If I try to create a new animation but for same the visibleMapRect the iOS will just ignore it.

func stopZoom() {
  //the trick: creating a region very similar to the existing one
  var mapRegion:MKCoordinateRegion = MKCoordinateRegionForMapRect(self.mapView.visibleMapRect)
  mapRegion.span.latitudeDelta = mapRegion.span.latitudeDelta + 0.000001

  UIView.animateWithDuration(0.1, delay: 0.0, options: [], animations: {
    let mapRegion:MKCoordinateRegion = mapRegion 
    self.mapView.setRegion(mapRegion, animated: true) //this will invalidate the other animations
  }) { (completed: Bool) -> Void in
}

}

作为参考的startZoom方法:

for reference the startZoom method:

func startZoom() {
  UIView.animateWithDuration(10, delay: 0.0, options: [UIViewAnimationOptions.CurveLinear, UIViewAnimationOptions.AllowUserInteraction, UIViewAnimationOptions.BeginFromCurrentState], animations: {
  let mapRegion:MKCoordinateRegion = MKCoordinateRegionMakeWithDistance(self.coordinate, 500, 500)
  self.mapView.setRegion(mapRegion, animated: true)
  }) { (completed: Bool) -> Void in
}

}

花了很多时间来解决这个问题，希望对您有帮助.

Spent quite a lot of time to figure this out, I hope it will be helpful to you.

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