void UpdateUserTrackingMode()
{
MyLocationConfiguration.LocationMode mode;
switch (Map.UserTrackingMode)
{
default:
case UserTrackingMode.None:
mode = MyLocationConfiguration.LocationMode.Normal;
break;
case UserTrackingMode.Follow:
mode = MyLocationConfiguration.LocationMode.Following;
break;
case UserTrackingMode.FollowWithCompass:
mode = MyLocationConfiguration.LocationMode.Compass;
break;
}
NativeMap.Map.SetMyLocationConfigeration(
new MyLocationConfiguration(mode, true, null)
);
if (UserTrackingMode.FollowWithCompass != Map.UserTrackingMode)
{
// 恢复俯视角
MapStatusUpdate overlook = MapStatusUpdateFactory.NewMapStatus(
new MapStatus.Builder(NativeMap.Map.MapStatus).Rotate(0).Overlook(0).Build()
);
NativeMap.Map.AnimateMapStatus(overlook);
}
}
private void UpdateUserTrackingMode()
{
if (Map != null)
{
var mode = Map.UserTrackingMode switch
{
UserTrackingMode.Follow => MyLocationConfiguration.LocationMode.Following,
UserTrackingMode.FollowWithCompass => MyLocationConfiguration.LocationMode.Compass,
_ => MyLocationConfiguration.LocationMode.Normal,
};
if (NativeMap.Map != null)
{
NativeMap.Map.SetMyLocationConfiguration(new MyLocationConfiguration(mode, true, null));
}
if (UserTrackingMode.FollowWithCompass != Map.UserTrackingMode)
{
// 恢复俯视角
MapStatusUpdate overlook = MapStatusUpdateFactory.NewMapStatus(
new MapStatus.Builder(NativeMap.Map.MapStatus).Rotate(0).Overlook(0).Build()
);
if (NativeMap.Map != null)
{
NativeMap.Map.AnimateMapStatus(overlook);
}
}
}
}
void IBDLocationListener.OnReceiveLocation(BDLocation location)
{
if (location == null)
{
return;
}
//Resolver.Resolve<IUserDialogService> ().Alert ("receive dialog");
MyLocationData locData = new MyLocationData.Builder()
.Accuracy(location.Radius)
// 此处设置开发者获取到的方向信息，顺时针0-360
.Direction(100).Latitude(location.Latitude)
.Longitude(location.Longitude).Build();
mBaiduMap.SetMyLocationData(locData);
LatLng cenpt = new LatLng(location.Latitude, location.Longitude);
//定义地图状态
MapStatus mMapStatus = new MapStatus.Builder()
.Target(cenpt)
.Zoom(14)
.Build();
//定义MapStatusUpdate对象，以便描述地图状态将要发生的变化
//
MapStatusUpdate mMapStatusUpdate = MapStatusUpdateFactory.NewMapStatus(mMapStatus);
//改变地图状态
mBaiduMap.SetMapStatus(mMapStatusUpdate);
}
/// <summary>
/// 移动位置
/// </summary>
/// <param name="coordinate"></param>
public void AnimateTo(Coordinate coordinate)
{
this.mapView.Map.Clear();
var point = new LatLng(coordinate.Latitude, coordinate.Longitude);
//Title="雪花啤酒(西安)分公司",Lat=34.364438,Lng=108.941338
//创建当前位置Marker图标
BitmapDescriptor bitmap = BitmapDescriptorFactory.FromResource(Resource.Drawable.red_location);
//构建MarkerOption，用于在地图上添加Marker
OverlayOptions option = new MarkerOptions()
.InvokePosition(point)
.Anchor(0.5f, 0.5f)
.ScaleX(0.5f)
.ScaleY(0.5f)
.Draggable(true)
.InvokeIcon(bitmap);
////在地图上添加Marker，并显示
this.mapView.Map.AddOverlay(option);
//使地图移动到当前位置
MapStatus mMapStatus = new MapStatus.Builder()
.Target(point)
.Zoom(18)
.Build();
//定义MapStatusUpdate对象,以便描述地图状态将要发生的变化
MapStatusUpdate mMapStatusUpdate = MapStatusUpdateFactory.NewMapStatus(mMapStatus);
//改变地图状态
this.mapView.Map.SetMapStatus(mMapStatusUpdate);
}
public void Refresh(List <Option> points)
{
this.mapView.Map.Clear();
LatLngBounds.Builder builder = new LatLngBounds.Builder();
foreach (var point in points)
{
var latLng = new LatLng(point.Lat, point.Lng);
builder = builder.Include(latLng);
BitmapDescriptor bitmap = BitmapDescriptorFactory.FromResource(Resource.Drawable.red_location);
//构建MarkerOption，用于在地图上添加Marker
OverlayOptions option = new MarkerOptions()
.InvokePosition(latLng)
.InvokeTitle(point.Title)
.Anchor(0.5f, 0.5f)
.Draggable(true)
.ScaleX(0.5f)
.ScaleY(0.5f)
.InvokeIcon(bitmap);
////在地图上添加Marker，并显示
this.mapView.Map.AddOverlay(option);
}
LatLngBounds latlngBounds = builder.Build();
MapStatusUpdate u = MapStatusUpdateFactory.NewLatLngBounds(latlngBounds, mapView.Width, mapView.Height);
mapView.Map.AnimateMapStatus(u);
}
private void UpdateCenter()
{
if (NativeMap.Map != null)
{
var locData = new MyLocationData.Builder().Latitude(Map.Center.Latitude).Longitude(Map.Center.Longitude).Build();
NativeMap.Map.AnimateMapStatus(MapStatusUpdateFactory.NewLatLng(Map.Center.ToNative()));
NativeMap.Map.SetMyLocationData(locData);
}
}
private void UpdateZoomLevel()
{
if (NativeMap.Map != null)
{
NativeMap.Map.AnimateMapStatus(
MapStatusUpdateFactory.ZoomTo(Map.ZoomLevel)
);
}
}
private void InitView()
{
//设置标题栏
var img_header_back = FindViewById <ImageView> (Resource.Id.img_header_back);
img_header_back.Click += (sender, e) =>
{
this.Finish();
OverridePendingTransition(Android.Resource.Animation.SlideInLeft, Android.Resource.Animation.SlideOutRight);
};
var bundle = Intent.Extras;
var alarmPosition = bundle.GetString("alarmPosition");
if (!string.IsNullOrEmpty(alarmPosition) && alarmPosition.Contains(","))
{
var Positions = alarmPosition.Split(new char[] { ',' });
nPosition = Convert.ToDouble(Positions [0].Substring(1));
ePosition = Convert.ToDouble(Positions [1].Substring(1));
}
var tv_back = FindViewById <TextView> (Resource.Id.tv_back);
tv_back.Text = "报警详细";
var tv_desc = FindViewById <TextView> (Resource.Id.tv_desc);
tv_desc.Text = "报警位置显示";
mMapView = FindViewById <MapView> (Resource.Id.bmap_view);
bdMap = mMapView.Map;
bdMap.MapType = BaiduMap.MapTypeNormal;
LatLng sourceLatLng = new LatLng(nPosition, ePosition);
// 将GPS设备采集的原始GPS坐标转换成百度坐标
CoordinateConverter converter = new CoordinateConverter();
converter.From(Com.Baidu.Mapapi.Utils.CoordinateConverter.CoordType.Gps);
// sourceLatLng待转换坐标
converter.Coord(sourceLatLng);
LatLng desLatLng = converter.Convert();
//构建MarkerOption，用于在地图上添加Marker
//构建Marker图标
BitmapDescriptor bitmap = BitmapDescriptorFactory
.FromResource(Resource.Drawable.ic_map);
OverlayOptions option = new MarkerOptions().InvokePosition(desLatLng).InvokeIcon(bitmap).Draggable(true).InvokeZIndex(9);
//在地图上添加Marker，并显示
bdMap.AddOverlay(option);
// 将地图移动到覆盖物位置
MapStatusUpdate u = MapStatusUpdateFactory.NewLatLng(desLatLng);
bdMap.SetMapStatus(u);
}
/// <summary>
/// 缩放地图，使所有Overlay都在合适的视野内
/// 注： 该方法只对Marker类型的overlay有效
/// </summary>
public void ZoomToSpan()
{
////获取地图可视区域
//var bounds = map.GetBounds();
////获取西南角的经纬度(左下端点)
//var sw = bounds.getSouthWest();
////获取东北角的经纬度(右上端点)
//var ne = bounds.getNorthEast();
////获取西北角的经纬度(左上端点)
//var wn = new BMap.Point(sw.lng, ne.lat);
////获取东南角的经纬度(右下端点)
//var es = new BMap.Point(ne.lng, sw.lat);
if (NativeMap.Map == null)
{
return;
}
var mOverlayList = Map.Pins;
if (mOverlayList.Count > 0)
{
LatLngBounds.Builder builder = new LatLngBounds.Builder();
foreach (var item in mOverlayList)
{
// polyline 中的点可能太多，只按marker 缩放
var overlay = (Marker)item?.NativeObject;
if (overlay != null)
{
builder.Include(((Marker)overlay).Position);
}
}
MapStatus mapStatus = NativeMap.Map.MapStatus;
if (null != mapStatus)
{
int width = mapStatus.WinRound.Right - NativeMap.Map.MapStatus.WinRound.Left - 400;
int height = mapStatus.WinRound.Bottom - NativeMap.Map.MapStatus.WinRound.Top - 400;
NativeMap.Map.SetMapStatus(MapStatusUpdateFactory.NewLatLngBounds(builder.Build(), width, height));
}
}
}
/// <summary>
/// 设置显示在规定宽高中的地图地理范围
/// </summary>
/// <param name="paddingLeft"></param>
/// <param name="paddingTop"></param>
/// <param name="paddingRight"></param>
/// <param name="paddingBottom"></param>
public void ZoomToSpanPaddingBounds(int paddingLeft, int paddingTop, int paddingRight, int paddingBottom)
{
if (NativeMap.Map == null)
{
return;
}
var mOverlayList = Map.Pins;
if (mOverlayList.Count > 0)
{
LatLngBounds.Builder builder = new LatLngBounds.Builder();
foreach (var item in mOverlayList)
{
// polyline 中的点可能太多，只按marker 缩放
var overlay = (Marker)item?.NativeObject;
if (overlay != null)
{
builder.Include(((Marker)overlay).Position);
}
}
NativeMap.Map.SetMapStatus(MapStatusUpdateFactory
.NewLatLngBounds(builder.Build(), paddingLeft, paddingTop, paddingRight, paddingBottom));
}
}
void UpdateCenter()
{
NativeMap.Map.AnimateMapStatus(
MapStatusUpdateFactory.NewLatLng(Map.Center.ToNative())
);
}
void UpdateZoomLevel()
{
NativeMap.Map.AnimateMapStatus(
MapStatusUpdateFactory.ZoomTo(Map.ZoomLevel)
);
}
void UpdateZoomLevel()
{
mapView.Map.AnimateMapStatus(
MapStatusUpdateFactory.ZoomTo(Map.ZoomLevel)
);
}