pop method
Back page (until: patternPath)
Implementation
void pop({String? until}) {
if (state.value.pageRoutes.length <= 1) return;
final patternPathToPop = until ??
state.value.pageRoutes[state.value.pageRoutes.length - 2].patternPath;
final index = state.value.pageRoutes
.indexWhere((e) => e.patternPath == patternPathToPop);
if (index < 0) return;
final newStack = state.value.pageRoutes.sublist(0, index + 1);
final newState = UiRouterState(
pageRoutes: newStack,
dialogRoutes: state.value.dialogRoutes,
tasks: state.value.tasks,
);
state.value = newState;
}