feat: New experimental design

lib/components/default_bottom_navigation_bar.dart

@@ -0,0 +1,65 @@
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:adaptive_page_layout/adaptive_page_layout.dart';
+import 'package:flutter_gen/gen_l10n/l10n.dart';
+
+class DefaultBottomNavigationBar extends StatelessWidget {
+  final int currentIndex;
+
+  const DefaultBottomNavigationBar({Key key, this.currentIndex = 1})
+      : super(key: key);
+  @override
+  Widget build(BuildContext context) {
+    return BottomNavigationBar(
+      onTap: (i) {
+        if (i == currentIndex) return;
+        switch (i) {
+          case 0:
+            AdaptivePageLayout.of(context)
+                .pushNamedAndRemoveUntilIsFirst('/contacts');
+            break;
+          case 1:
+            AdaptivePageLayout.of(context).pushNamedAndRemoveAllOthers('/');
+            break;
+          case 2:
+            AdaptivePageLayout.of(context)
+                .pushNamedAndRemoveUntilIsFirst('/discover');
+            break;
+          case 3:
+            AdaptivePageLayout.of(context)
+                .pushNamedAndRemoveUntilIsFirst('/settings');
+            break;
+        }
+      },
+      backgroundColor: Theme.of(context).scaffoldBackgroundColor,
+      selectedItemColor: Theme.of(context).accentColor,
+      currentIndex: currentIndex,
+      //unselectedItemColor: Theme.of(context).textTheme.bodyText1.color,
+      type: BottomNavigationBarType.fixed,
+      showUnselectedLabels: false,
+      items: [
+        BottomNavigationBarItem(
+          icon: Icon(currentIndex == 0 ? Icons.people : Icons.people_outlined),
+          label: L10n.of(context).contacts,
+        ),
+        BottomNavigationBarItem(
+          icon: Icon(currentIndex == 1
+              ? CupertinoIcons.chat_bubble_2_fill
+              : CupertinoIcons.chat_bubble_2),
+          label: L10n.of(context).messages,
+        ),
+        BottomNavigationBarItem(
+          icon: Icon(currentIndex == 2
+              ? CupertinoIcons.compass_fill
+              : CupertinoIcons.compass),
+          label: L10n.of(context).discover,
+        ),
+        BottomNavigationBarItem(
+          icon: Icon(
+              currentIndex == 3 ? Icons.settings : Icons.settings_outlined),
+          label: L10n.of(context).settings,
+        ),
+      ],
+    );
+  }
+}