flutter_package / fluttertpc_get

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jonataslaw
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88540929 1 parent 0d6f4af9

Delete material.dart

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import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
/// A modal route that replaces the entire screen with a platform-adaptive
/// transition.
///
/// For Android, the entrance transition for the page slides the page upwards
/// and fades it in. The exit transition is the same, but in reverse.
///
/// The transition is adaptive to the platform and on iOS, the page slides in
/// from the right and exits in reverse. The page also shifts to the left in
/// parallax when another page enters to cover it. (These directions are flipped
/// in environments with a right-to-left reading direction.)
///
/// By default, when a modal route is replaced by another, the previous route
/// remains in memory. To free all the resources when this is not necessary, set
/// [maintainState] to false.
///
/// The `fullscreenDialog` property specifies whether the incoming page is a
/// fullscreen modal dialog. On iOS, those pages animate from the bottom to the
/// top rather than horizontally.
///
/// The type `T` specifies the return type of the route which can be supplied as
/// the route is popped from the stack via [Navigator.pop] by providing the
/// optional `result` argument.
///
/// See also:
///
/// * [PageTransitionsTheme], which defines the default page transitions used
/// by [MaterialPageRoute.buildTransitions].
class GetRoute<T> extends PageRoute<T> {
/// Construct a MaterialPageRoute whose contents are defined by [builder].
///
/// The values of [builder], [maintainState], and [fullScreenDialog] must not
/// be null.
GetRoute({
@required this.builder,
RouteSettings settings,
this.opaque = true,
this.maintainState = true,
bool fullscreenDialog = false,
}) : assert(builder != null),
assert(maintainState != null),
assert(fullscreenDialog != null),
assert(opaque != null),
super(settings: settings, fullscreenDialog: fullscreenDialog);
/// Builds the primary contents of the route.
final WidgetBuilder builder;
@override
final bool maintainState;
/// Allows you to set opaque to false to prevent route reconstruction.
@override
final bool opaque;
@override
Duration get transitionDuration => const Duration(milliseconds: 300);
@override
Color get barrierColor => null;
@override
String get barrierLabel => null;
@override
bool canTransitionFrom(TransitionRoute<dynamic> previousRoute) {
return previousRoute is GetRoute || previousRoute is CupertinoPageRoute;
}
@override
bool canTransitionTo(TransitionRoute<dynamic> nextRoute) {
// Don't perform outgoing animation if the next route is a fullscreen dialog.
return (nextRoute is GetRoute && !nextRoute.fullscreenDialog)
|| (nextRoute is CupertinoPageRoute && !nextRoute.fullscreenDialog);
}
@override
Widget buildPage(
BuildContext context,
Animation<double> animation,
Animation<double> secondaryAnimation,
) {
final Widget result = builder(context);
assert(() {
if (result == null) {
throw FlutterError.fromParts(<DiagnosticsNode>[
ErrorSummary('The builder for route "${settings.name}" returned null.'),
ErrorDescription('Route builders must never return null.')
]);
}
return true;
}());
return Semantics(
scopesRoute: true,
explicitChildNodes: true,
child: result,
);
}
@override
Widget buildTransitions(BuildContext context, Animation<double> animation, Animation<double> secondaryAnimation, Widget child) {
final PageTransitionsTheme theme = Theme.of(context).pageTransitionsTheme;
return theme.buildTransitions<T>(this, context, animation, secondaryAnimation, child);
}
@override
String get debugLabel => '${super.debugLabel}(${settings.name})';
}