// 从右往左
public static Route _createRoute_RL()
{
return(new PageRouteBuilder(
pageBuilder: (context, animation, secondaryAnimation) => new Page2(),
barrierColor: Color.black, //过度背景色，页面退出时显示
transitionsBuilder: (context, animation, secondaryAnimation, child) =>
{
Offset begin = new Offset(1.0f, 0.0f);
Offset end = Offset.zero;
Curve curve = Curves.ease;
//var tween = Tween(begin: begin, end: end).chain(new CurveTween(curve: curve));
var tween = new OffsetTween(begin: begin, end: end).chain(new CurveTween(curve: curve));
return new SlideTransition(
position: animation.drive(tween),
child: child
);
}
));
}
public Interval(float begin, float end, Curve curve = null)
{
this.begin = begin;
this.end = end;
this.curve = curve ?? Curves.linear;
}
public FlippedCurve(Curve curve)
{
D.assert(curve != null);
this.curve = curve;
}