变暗的MKMapView的背景色而不变暗MKOverlay

Question

如何将一个变暗的MKMapView的背景色和不变暗在MKMapView的MKOverlay“在同一时间s - 类似于耐克+应用地图视图。

Answer 1

好的，我在这里得到了解决方案，在将其他叠加层添加到地图之前，可以将总叠加层作为背景添加到地图中，以便地图的背景颜色发生变化，但叠加层仍然像以前一样，这里有码

MKMapRect worldRect = MKMapRectWorld; 
    MKMapPoint point1 = MKMapRectWorld.origin; 
    MKMapPoint point2 = MKMapPointMake(point1.x+worldRect.size.width,point1.y); 
    MKMapPoint point3 = MKMapPointMake(point2.x, point2.y+worldRect.size.height); 
    MKMapPoint point4 = MKMapPointMake(point1.x, point3.y); 

    MKMapPoint points[4] = {point1,point2,point3,point4}; 
    self.polygon = [MKPolygon polygonWithPoints:points count:4]; 
    [self.runMapView addOverlay:self.polygon]; 

Answer 2

雨燕2.0

let worldRect = MKMapRectWorld 
let point1 = MKMapRectWorld.origin 
let point2 = MKMapPointMake(point1.x + worldRect.size.width, point1.y) 
let point3 = MKMapPointMake(point2.x, point2.y + worldRect.size.height) 
let point4 = MKMapPointMake(point1.x, point3.y) 
var points = [point1, point2, point3, point4] 
let polygon = MKPolygon(points: &points, count: points.count) 
mapView.addOverlay(polygon)