コード例 #1
0
        public async Task <bool> ShowFriendsOnMap(ToggleSwitch toggleSwitch, Pushpin userPin)
        {
            const int myEntityId         = 1;
            var       furthestAwayFriend = 1.0;

            var switchName = toggleSwitch.Content.ToString();
            var layerName  = toggleSwitch.LayerName();

            toggleSwitch.Opacity = 0.8;

            var tagLayer = this.FindOrAddLayerByName(layerName);

            var results = await Discovr.Classes.Core.LocationEntity.GetFriends(myEntityId, switchName);

            if (results != null)
            {
                ClearLayer(tagLayer);

                var pointToCompareTo = userPin != null && userPin.GeoCoordinate != null ? userPin.GeoCoordinate : MainMap.Center;
                var newColor         = Extensions.GetRandomColor();
                toggleSwitch.SwitchForeground = newColor;

                foreach (var result in results)
                {
                    var distanceToFriend = Map.AddOrUpdatePinToLayer(pointToCompareTo, new GeoCoordinate(result.Latitude, result.Longitude), result.EntityLabel, result.AvatarUrl, tagLayer, true, null, newColor, new AppSettings().ShowMetric);
                    furthestAwayFriend = distanceToFriend > furthestAwayFriend ? distanceToFriend : furthestAwayFriend;
                }

                MainMap.ZoomLevel = GeoConverter.GetZoomLevelFromMeters(furthestAwayFriend);

                toggleSwitch.Opacity = 1;
            }

            return(true);
        }