scrollable viewport

https://github.com/kyorohiro/hello_skyengine/tree/master/widget_scrollableviewport

// following code is checked in 2015/12/13
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
void main() {
// ScrollDirection.vertical.both is developping now. 2016/01/13
//https://github.com/flutter/engine/issues/888
Widget b1 = new AssetImage(name: "assets/a.png", width: 300.0, height: 300.0, bundle:rootBundle);
Widget b2 = new AssetImage(name: "assets/b.png", width: 300.0, height: 300.0, bundle:rootBundle);
Row r1 = new Row([b1, b2, b1, b2, b1, b2, b1, b2, b1]);
Row r2 = new Row([b2, b1, b2, b1, b2, b1, b2, b1, b2]);
Column g = new Column([r1, r2, r1, r2, r1, r2, r1, r2, r1]);
ScrollableViewport viewPortH = new ScrollableViewport(
child: g, scrollDirection: ScrollDirection.horizontal,
onScroll: (double scrollOffset) {
print("---h-${scrollOffset}--");
});
ScrollableViewport viewPortV = new ScrollableViewport(
child: viewPortH, scrollDirection: ScrollDirection.vertical,
onScroll: (double scrollOffset) {
print("---v-${scrollOffset}--");
});
runApp(viewPortV);
}
#flutter.yaml
assets:
- assets/icon.jpeg
- assets/icon2.jpeg
- assets/a.png
- assets/b.png