buildWidget method
构建主体
Implementation
@override
Widget buildWidget(XBVM vm, BuildContext context) {
if (image == null) {
return Container();
}
return Container(
color: xbImageEditorColorBlack,
alignment: Alignment.center,
child: RotatedBox(
quarterTurns: -operaUtil.calculateRotate, child: childWidget(vm)),
);
}