ios - 向下或向上滑动 MKMapView 指定数量的像素

Question

我如何将 MKMapView 垂直滑动给定的像素数，我玩了一下，这是我的代码，当然这不起作用:(

var point = mapView.convert(mapView.centerCoordinate, toPointTo: self.view)

point.x += offSet.x
point.y += offSet.y

let center = mapView.convert(point, toCoordinateFrom: self.view)
mapView.setCenter(center, animated: true)

Answer 1

刚刚弄明白了，这是代码，希望它能帮助别人；)

func mapViewMoveBy(offset: CGPoint, animated: Bool = true) {
    var point = mapView.center

    point.x += offset.x
    point.y += offset.y

    let coordinate = mapView.convert(point, toCoordinateFrom: mapView)
    mapView.setCenter(coordinate, animated: animated)
}

用法

let slideFourtyPixelDown: CGFloat = -40
mapViewMoveBy(offset: CGPoint(x: 0, y: slideFourtyPixelDown))