I have a list of items
List<String> items = [
"All",
"Jobs",
"Messages",
"Customers",
];
int current = 0;
And this list is directly responsible for my tab bar:
When i tap an item in the Tab bar i want to return a different container on each of them?
How do i go about this in flutter?
I tried returning an if statement just before the container but it seems i don’t get the statement correctly.
this is the container i want to return if the item user select is All, and then put conditions in place for the rest items.
this is how i put the condition but it gives me this error
My return statement and code –
current = 0 ??
Container(
margin: const EdgeInsets.only(top: 30),
height: MediaQuery.of(context).size.height * 1,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
const SizedBox(
height: 10,
),
Text(
items[current],
style: GoogleFonts.laila(
fontWeight: FontWeight.w500,
fontSize: 30,
color: Colors.deepPurple),
),
],
),
),
current = 1 ?? Text('hello')
FULL WIDGET ADDED
class NotificationsView extends StatefulWidget {
@override
State<NotificationsView> createState() => _NotificationsViewState();
}
class _NotificationsViewState extends State<NotificationsView> {
final controller = Get.put(NotificationsController());
List<String> items = [
"All",
"Jobs",
"Messages",
"Customers",
];
int current = 0;
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(
"Notifications".tr,
style: GoogleFonts.poppins(
color: Color(0xff000000),
fontSize: 16,
fontWeight: FontWeight.w600),
),
centerTitle: false,
backgroundColor: Colors.transparent,
elevation: 0,
automaticallyImplyLeading: false,
leadingWidth: 15,
leading: new IconButton(
icon: new Icon(Icons.arrow_back_ios, color: Color(0xff3498DB)),
onPressed: () => {Get.back()},
),
),
body: RefreshIndicator(
onRefresh: () async {
},
child: ListView(
primary: true,
children: <Widget>[
filter(),
],
),
),
);
}
Widget notificationsList() {
return Obx(() {
if (!controller.notifications.isNotEmpty) {
return CircularLoadingWidget(
height: 300,
onCompleteText: "Notification List is Empty".tr,
);
} else {
var _notifications = controller.notifications;
return ListView.separated(
itemCount: _notifications.length,
separatorBuilder: (context, index) {
return SizedBox(height: 7);
},
shrinkWrap: true,
primary: false,
itemBuilder: (context, index) {
var _notification = controller.notifications.elementAt(index);
if (_notification.data['message_id'] != null) {
return MessageNotificationItemWidget(
notification: _notification);
} else if (_notification.data['booking_id'] != null) {
return BookingNotificationItemWidget(
notification: _notification);
} else {
return NotificationItemWidget(
notification: _notification,
onDismissed: (notification) {
controller.removeNotification(notification);
},
onTap: (notification) async {
await controller.markAsReadNotification(notification);
},
);
}
});
}
});
}
Widget filter() {
return Container(
width: double.infinity,
margin: const EdgeInsets.all(5),
child: Column(
children: [
/// CUSTOM TABBAR
SizedBox(
width: double.infinity,
height: 60,
child: ListView.builder(
physics: const BouncingScrollPhysics(),
itemCount: items.length,
scrollDirection: Axis.horizontal,
itemBuilder: (ctx, index) {
return Column(
children: [
GestureDetector(
onTap: () {
setState(() {
current = index;
});
},
child: AnimatedContainer(
duration: const Duration(milliseconds: 300),
margin: const EdgeInsets.all(5),
decoration: BoxDecoration(
color: current == index
? Color(0xff34495E)
: Color(0xffF5F5F5),
borderRadius: BorderRadius.circular(11),
),
child: Center(
child: Padding(
padding: const EdgeInsets.only(
left: 10.0, right: 10.0, top: 5, bottom: 5),
child: Text(
items[index],
style: GoogleFonts.poppins(
fontSize: 12,
fontWeight: FontWeight.w500,
color: current == index
? Colors.white
: Colors.grey),
),
),
),
),
),
],
);
}),
),
/// MAIN BODY
current = 0 ??
Container(
margin: const EdgeInsets.only(top: 30),
height: MediaQuery.of(context).size.height * 1,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
const SizedBox(
height: 10,
),
Text(
items[current],
style: GoogleFonts.laila(
fontWeight: FontWeight.w500,
fontSize: 30,
color: Colors.deepPurple),
),
Padding(
padding: const EdgeInsets.only(
left: 20.0, right: 20.0, top: 20.0, bottom: 20),
child: Column(
children: [
Stack(
children: [
Row(
children: [
Container(
decoration: BoxDecoration(
color: Color(0xffEFFAFF),
borderRadius:
BorderRadius.circular(20)),
child: Padding(
padding: const EdgeInsets.all(10.0),
child: Image.asset(
'assets/icon/suitcase.png'),
),
),
SizedBox(
width: 15,
),
Column(
crossAxisAlignment:
CrossAxisAlignment.start,
children: [
Text(
'New Job started ',
style: GoogleFonts.poppins(
fontSize: 14,
fontWeight: FontWeight.w500,
color: Color(0xff151515)),
),
Text(
'Tailoring for John Cletus ',
style: GoogleFonts.poppins(
fontSize: 10,
fontWeight: FontWeight.w400,
color: Color(0xff151515)),
),
],
),
Spacer(),
Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(2),
color: Color(0xffFFE8E8),
),
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Text(
'Urgent',
style: GoogleFonts.poppins(
color: Color(0xffC95E5E)),
),
),
),
],
),
],
),
Divider(
height: 5,
color: Color(0xffEFFAFF),
),
],
),
),
],
),
),
current = 1 ?? Text('hello')
],
),
);
}
}
3
Answers
You can use
Builderif want to display different type of widget based on thecurrentindex.Below approach will solve your problem. If you need further assistance, please feel free to comment.
You can use conditional if on widget level,
like
Also can be use
else ifBut creating a separate method will be better instead of putting it here
And call the method
getWidget(current).Also there are some widget like
PageView,IndexedStackwill help to organize the code structure