container

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

// following code is checked in 2016/01/13
import 'package:flutter/widgets.dart';
import 'package:flutter/services.dart';
import 'package:flutter/material.dart';
import 'dart:ui' as sky;
import 'dart:math' as math;
import 'dart:async';
main() async {
BoxConstraints constraints = new BoxConstraints();
BoxDecoration decoration = createDecoration();
//BoxDecoration foregroundDecoration = createForegroundDecoration();
EdgeDims margin = new EdgeDims.symmetric(vertical: 1.0, horizontal: 3.0);
EdgeDims padding = new EdgeDims.symmetric(vertical: 4.0, horizontal: 5.0);
Matrix4 transform =
new Matrix4.translationValues(150.0, 150.0, 0.0)
..rotateZ(math.PI/180*30.0)
..translate(-150.0,-150.0,0.0);
double width = 300.0;
double height = 300.0;
Container c = new Container(
child:new Text("Hello!!"),
constraints:constraints,
decoration:decoration,
//foregroundDecoration:foregroundDecoration,
margin:margin,
padding:padding,
transform:transform,
width:width,
height:height
);
runApp(new Center(child:c));
}
BoxDecoration createDecoration() {
Color backgroundColor = new Color.fromARGB(0xaa, 0xff, 0xaa, 0xaa);
BackgroundImage backgroundImage = createBackgroundImage();
Border border = new Border.all(color:new Color.fromARGB(0xff, 0xff, 0x00, 0x00));
double borderRadius = 10.0;
// List<BoxShadow> boxShadow;
// Gradient gradient;
//Shape shape;
return new BoxDecoration(
backgroundColor:backgroundColor,
backgroundImage:backgroundImage,
border:border,
borderRadius:borderRadius);
}
BackgroundImage createBackgroundImage() {
//
// 2015 12/03 icon.image is error
//ImageResource image = new ImageResource(ImageLoader.load("assets/icon.jpeg"));
ImageResource image = new ImageResource(ImageLoader.load("assets/a.png"));
ImageFit fit = ImageFit.none;
//ImageRepeat repeat = ImageRepeat.repeat;
Rect centerSlice = new Rect.fromLTWH(10.0, 10.0, 100.0, 100.0);
sky.ColorFilter colorFilter = new sky.ColorFilter.mode(
new Color.fromARGB(0xaa, 0xff, 0xaa, 0xaa), TransferMode.lighten);
return new BackgroundImage(
image:image,
fit:fit,
//repeat:repeat,
colorFilter:colorFilter,
centerSlice:centerSlice
);
}
class ImageLoader {
static AssetBundle getAssetBundle() {
if (rootBundle != null) {
return rootBundle;
} else {
return new NetworkAssetBundle(new Uri.directory(Uri.base.origin));
}
}
static Future<sky.Image> load(String url) async {
AssetBundle bundle = getAssetBundle();
ImageResource resource = bundle.loadImage(url);
return resource.first;
}
}
# flutter.yaml
assets:
- assets/icon.jpeg
- assets/a.png