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Expose activeIndex for AutoTabsRouter and RoutingController #2134

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Expose activeIndex for AutoTabsRouter and RoutingController #2134

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6 changes: 4 additions & 2 deletions auto_route/lib/src/router/controller/routing_controller.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -649,10 +649,12 @@ class TabsRouter extends RoutingController {
required RouteData routeData,
this.homeIndex = -1,
required this.preload,
RoutingController? parent})
RoutingController? parent,
int activeIndex = 0})
: matcher = RouteMatcher(routeCollection),
_parent = parent,
_routeData = routeData;
_routeData = routeData,
_activeIndex = activeIndex;

/// Called to preload a page before other navigation events occur
/// if it returns true, the page has been preloaded, otherwise we assume it's already loaded
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13 changes: 13 additions & 0 deletions auto_route/lib/src/router/widgets/auto_tabs_router.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -67,9 +67,13 @@ abstract class AutoTabsRouter extends StatefulWidget {
/// else pop parent
final int homeIndex;

/// The index of the `route` to show on first build
final int startIndex;

const AutoTabsRouter._({
super.key,
required this.routes,
this.startIndex = 0,
this.homeIndex = -1,
this.inheritNavigatorObservers = true,
this.navigatorObservers =
Expand All @@ -89,6 +93,7 @@ abstract class AutoTabsRouter extends StatefulWidget {
int homeIndex,
bool inheritNavigatorObservers,
NavigatorObserversBuilder navigatorObservers,
int startIndex,
}) = _AutoTabsRouterIndexedStack;

/// Builds an [AutoTabsRouter] to uses
Expand All @@ -106,6 +111,7 @@ abstract class AutoTabsRouter extends StatefulWidget {
NavigatorObserversBuilder navigatorObservers,
ScrollPhysics? physics,
DragStartBehavior dragStartBehavior,
int startIndex,
}) = _AutoTabsRouterPageView;

/// Builds an [AutoTabsRouter] to uses
Expand All @@ -123,6 +129,7 @@ abstract class AutoTabsRouter extends StatefulWidget {
NavigatorObserversBuilder navigatorObservers,
ScrollPhysics? physics,
DragStartBehavior dragStartBehavior,
int startIndex,
}) = _AutoTabsRouterTabBar;

/// Builds an [AutoTabsRouter] with a custom builder
Expand All @@ -137,6 +144,7 @@ abstract class AutoTabsRouter extends StatefulWidget {
int homeIndex,
bool inheritNavigatorObservers,
NavigatorObserversBuilder navigatorObservers,
int startIndex,
}) = _AutoTabsRouterBuilder;

/// Looks up and returns the scoped [controller]
Expand Down Expand Up @@ -195,6 +203,7 @@ abstract class AutoTabsRouterState<T extends AutoTabsRouter> extends State<T> {
routeCollection: _parentController.routeCollection.subCollectionOf(
parentRoute.name,
),
activeIndex: widget.startIndex,
);
_parentController.attachChildController(_controller!);
_setupController();
Expand Down Expand Up @@ -241,6 +250,7 @@ class _AutoTabsRouterIndexedStack extends AutoTabsRouter {
this.builder,
this.transitionBuilder = _defaultTransitionBuilder,
super.homeIndex,
super.startIndex,
super.inheritNavigatorObservers,
super.navigatorObservers,
}) : super._();
Expand Down Expand Up @@ -487,6 +497,7 @@ class _AutoTabsRouterPageView extends AutoTabsRouter {
super.routes,
AutoTabsPageViewBuilder? builder,
super.homeIndex,
super.startIndex,
this.scrollDirection = Axis.horizontal,
this.animatePageTransition = true,
this.duration = kTabScrollDuration,
Expand Down Expand Up @@ -617,6 +628,7 @@ class _AutoTabsRouterTabBar extends AutoTabsRouter {
this.scrollDirection = Axis.horizontal,
this.builder,
super.homeIndex,
super.startIndex,
this.animatePageTransition = true,
this.duration,
this.curve = Curves.ease,
Expand Down Expand Up @@ -758,6 +770,7 @@ class _AutoTabsRouterBuilder extends AutoTabsRouter {
super.homeIndex,
super.inheritNavigatorObservers,
super.navigatorObservers,
super.startIndex,
}) : super._();

@override
Expand Down