public RotationGestureOverlay(Context context, MapView mapView)
: base(context)
{
OptionsMenuEnabled = true;
_mMapView = mapView;
_mRotationDetector = new RotationGestureDetector(this);
}
public bool OnOptionsItemSelected(IMenuItem menuItem, int menuIdOffset, MapView mapView)
{
if (menuItem.ItemId == MenuEnabled + menuIdOffset)
{
if (Enabled)
{
_mMapView.MapOrientation = 0;
Enabled = false;
}
else
{
Enabled = true;
return true;
}
}
else if (menuItem.ItemId == MenuRotateCcw + menuIdOffset)
{
_mMapView.MapOrientation -= 10;
}
else if (menuItem.ItemId == MenuRotateCw + menuIdOffset)
{
_mMapView.MapOrientation += 10;
}
return false;
}
public override bool OnTouchEvent(MotionEvent motionEvent, MapView mapView)
{
if (Enabled)
{
_mRotationDetector.OnTouch(motionEvent);
}
return base.OnTouchEvent(motionEvent, mapView);
}
public bool OnCreateOptionsMenu(IMenu menu, int menuIdOffset, MapView mapView)
{
menu.Add(0, MenuEnabled + menuIdOffset, Menu.None, "Enable rotation").SetIcon(
Android.Resource.Drawable.IcMenuInfoDetails);
if (ShowRotateMenuItems)
{
menu.Add(0, MenuRotateCcw + menuIdOffset, Menu.None,
"Rotate maps counter clockwise").SetIcon(Android.Resource.Drawable.IcMenuRotate);
menu.Add(0, MenuRotateCw + menuIdOffset, Menu.None, "Rotate maps clockwise")
.SetIcon(Android.Resource.Drawable.IcMenuRotate);
}
return true;
}
private void InitMapView()
{
var mapView = FindViewById<MapView>(R.Id.mapView); // mapPath
ITileSource tileSource = TileSourceFactory.Mapnik;
mapView.SetTileSource(tileSource);
mapView.TilesScaledToDpi = true;
mapView.SetMultiTouchControls(true);
mapView.Zoom += mapView_Zoom;
mapView.Scroll += mapView_Scroll;
//---------------���õ�ͼ��ת-------------------
//_mRotationGestureOverlay = new RotationGestureOverlay(this, mapView);
//_mRotationGestureOverlay.Enabled = true;
//mapView.Overlays.Add(_mRotationGestureOverlay);
mapController = mapView.Controller;
mapController.SetZoom(15);
GeoPoint startPoint = new GeoPoint(30.538079, 114.4159972);
mapController.SetCenter(startPoint);
DefaultResourceProxyImpl resourceProxy = new DefaultResourceProxyImpl(this);
myLocationoverlay = new MyLocationNewOverlay(this, new GpsMyLocationProvider(this), mapView);
myLocationoverlay.EnableMyLocation(); // not on by default
myLocationoverlay.RunOnFirstFix(this);
mapView.Overlays.Add(myLocationoverlay);
_mapView = mapView;
}
public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
_resourceProxy = new ResourceProxyImpl(inflater.Context.ApplicationContext);
_mapView = new MapView(inflater.Context, 256, _resourceProxy);
return _mapView;
}
public bool OnPrepareOptionsMenu(IMenu menu, int menuIdOffset, MapView mapView)
{
menu.FindItem(MenuEnabled + menuIdOffset).SetTitle(
Enabled ? "Disable rotation" : "Enable rotation");
return false;
}
public override void Draw(Canvas canvas, MapView mapView, bool shadow)
{
// No drawing necessary
}
public override void Draw(Canvas c, MapView osmv, bool shadow)
{
if (shadow)
return;
var proj = osmv.Projection;
proj.ToPixels(_mTopLeft, _mTopLeftPoint);
proj.ToPixels(_mBottomRight, _mBottomRightPoint);
var area = new Rect(_mTopLeftPoint.X, _mTopLeftPoint.Y, _mBottomRightPoint.X, _mBottomRightPoint.Y);
c.DrawRect(area, Paint);
}
public AreaSelectTool(MapView mapView, Context context)
: base(context)
{
_mapView = mapView;
this.context = context;
}
public override bool OnTouchEvent(MotionEvent e, MapView mapView)
{
float x = e.GetX();
float y = e.GetY();
int operationType = GetOperationType(e);
switch (operationType)
{
case OPER_TRANSLATE:
Translate(x, y);
break;
case OPER_SCALE:
Scale(e);
break;
case OPER_ROTATE:
//Rotate(e);
break;
default:
_mapView.Invalidate();
break;
}
lastPoint[0] = e.GetX();//�뿪��ĻX����
lastPoint[1] = e.GetY();//�뿪��ĻY����
if (isMultipleFingers)
{
return false;//�õ�ͼ�ƶ�
}
else
{
if (isOnSelectTool)
return true;//��ֹ��ͼ�ƶ�
else
return false;//�õ�ͼ�ƶ�
}
}
/// <summary>
/// ��ʼ����
/// </summary>
/// <param name="c"></param>
/// <param name="osmv"></param>
/// <param name="shadow"></param>
public override void Draw(Canvas c, MapView osmv, bool shadow)
{
if (_pointList != null)
{
DrawBackground(c);//���Ʊ���,�Ա���Ծ��ε�ӳ��
// c.DrawBitmap(mainBmp, matrix, paint);//������ͼƬ
DrawFrame(c);//���Ʊ߿�,�Ա���Ե��ӳ��
DrawControlPoints(c);//���ƿ��Ƶ�ͼƬ
DrawFlyingPath(c);
}
}
