57 lines
1.5 KiB
Dart
57 lines
1.5 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter/widgets.dart';
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Route circlePageBuilder({
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required Widget page,
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required Offset beginPosition,
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bool? fullScreenDialog,
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Duration? transitionDuration,
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}) {
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return PageRouteBuilder(
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pageBuilder: (context, animation, secondaryAnimation) => page,
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transitionDuration: transitionDuration ?? const Duration(milliseconds: 250),
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reverseTransitionDuration: transitionDuration ?? const Duration(milliseconds: 250),
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fullscreenDialog: fullScreenDialog ?? false,
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transitionsBuilder: (context, animation, secondaryAnimation, child) {
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const double beganRadius = 0.0;
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final double endRadius = MediaQuery.of(context).size.height * 1.7;
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final radiusTweenAnimation = animation.drive(
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Tween(begin: beganRadius, end: endRadius),
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);
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return ClipPath(
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clipper: _CircleTransitionClipper(
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center: beginPosition,
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radius: radiusTweenAnimation.value,
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),
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child: child,
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);
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},
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);
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}
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class _CircleTransitionClipper extends CustomClipper<Path> {
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final Offset center;
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final double radius;
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const _CircleTransitionClipper({
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required this.center,
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required this.radius,
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});
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@override
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Path getClip(Size size) {
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return Path()
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..addOval(
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Rect.fromCircle(
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center: center,
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radius: radius,
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),
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);
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}
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@override
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bool shouldReclip(covariant CustomClipper<Path> oldClipper) => true;
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}
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