Merge pull request #42 from vincentneo/ios16-add-overlay-patch

Fix broken insert overlay for iOS 16

Author: merlos

MapCache.podspec

@@ -28,7 +28,7 @@ DESC
 
   s.swift_version = '5.0'
   s.source_files = 'MapCache/Classes/**/*'
-  s.ios.deployment_target = '9.0'
+  s.ios.deployment_target = '11.0'
   s.osx.deployment_target = '10.10'
   # s.resource_bundles = {
   #   'MapCache' => ['MapCache/Assets/*.png']

MapCache/Classes/MKMapView+MapCache.swift

@@ -40,7 +40,12 @@ extension MKMapView {
         }
 
         tileServerOverlay.tileSize = cache.config.tileSize
-        self.insertOverlay(tileServerOverlay, at: 0, level: .aboveLabels)
+        if let firstOverlay = self.overlays.first {
+            self.insertOverlay(tileServerOverlay, below: firstOverlay)
+        }
+        else {
+            self.addOverlay(tileServerOverlay, level: .aboveLabels)
+        }
         return tileServerOverlay
     }