createState method

@override ImageViewState createState()

Creates the mutable state for this widget at a given location in the tree.

Subclasses should override this method to return a newly created instance of their associated State subclass:

@override
State<SomeWidget> createState() => _SomeWidgetState();

The framework can call this method multiple times over the lifetime of a StatefulWidget. For example, if the widget is inserted into the tree in multiple locations, the framework will create a separate State object for each location. Similarly, if the widget is removed from the tree and later inserted into the tree again, the framework will call createState again to create a fresh State object, simplifying the lifecycle of State objects.

Implementation

@override
ImageViewState createState() {
 // Log.k( "imageView",   "createState() - width: " + myWidth.toString() );

  var state = ImageViewState(
    widthNeeded: myWidth!,
    heightNeeded: myHeight!,

    assetAspectRatio:  assetAspectRatio,
    assetBackground: assetBackground,
    urlAspectRation: urlAspectRation,
    urlBackground: urlBackground,
    radius_all: radius_all,
    radius_topLeft: radius_topLeft,
    radius_topRight: radius_topRight,
    radius_bottomLeft: radius_bottomLeft,
    radius_bottomRight: radius_bottomRight,
    colorBackground: colorBackground,
    padding: padding,
    margin: margin,
    opacity: opacity,
      responsive_auto : responsive_auto,
      onPressed : onPressed,
    gravityLayout_alignment: gravityLayout_alignment
  );

  if(onChangeState != null ) onChangeState!(state);
  return state;
}