protected override void Dispose(bool disposing) {
lock (this) {
// Detach objects
if (_baseMapViewRenderer != null) {
_baseMapViewRenderer.Detach();
}
if (_redrawRequestListener != null) {
_redrawRequestListener.Detach();
}
if (_baseMapView != null) {
_baseMapView.SetRedrawRequestListener(null);
}
// Dispose objects
if (_configChooser != null) {
_configChooser.Dispose();
_configChooser = null;
}
if (_baseMapViewRenderer != null) {
_baseMapViewRenderer.Dispose(); // allow the Java object to be collected later
_baseMapViewRenderer = null;
}
if (_baseMapView != null) {
_baseMapView.Dispose();
_baseMapView = null;
}
if (_redrawRequestListener != null) {
_redrawRequestListener.Dispose();
_redrawRequestListener = null;
}
}
base.Dispose(disposing);
}
/// <summary>
/// Constructs a new MapView object from a context object and attributes.
/// </summary>
/// <param name="context">The context object.</param>
/// <param name="attrs">The attributes.</param>
public MapView(Context context, IAttributeSet attrs) : base(context, attrs) {
// Connect context info and assets manager to native part
AndroidUtils.SetContext (context);
if (_assetManager == null) {
Carto.Utils.Log.Warn("MapView: MapView created before MapView.RegisterLicense is called");
_assetManager = context.ApplicationContext.Assets;
AssetUtils.SetAssetManagerPointer(_assetManager);
}
// Create base map view, attach redraw listener
_baseMapView = new BaseMapView();
_baseMapView.GetOptions().DPI = (int)Resources.DisplayMetrics.DensityDpi;
_redrawRequestListener = new MapRedrawRequestListener(this);
_baseMapView.SetRedrawRequestListener(_redrawRequestListener);
// Create base map renderer and EGL configuration chooser
_baseMapViewRenderer = new BaseMapViewRenderer(_baseMapView);
_configChooser = new ConfigChooser();
try {
System.Reflection.PropertyInfo prop = typeof(GLSurfaceView).GetProperty("PreserveEGLContextOnPause");
prop.SetValue(this, true);
} catch (System.Exception) {
Carto.Utils.Log.Info("MapView: Preserving EGL context on pause is not possible");
}
SetEGLContextClientVersion(2);
SetEGLConfigChooser(_configChooser);
SetRenderer(_baseMapViewRenderer);
RenderMode = Rendermode.WhenDirty;
}
