Flutter load list with id - flutter

Question

Hey how can i load one of several lists with one id?
my lists look like this
List one = [
{'name': 'USA'},
{'name': 'Germany'},
];
List two = [
{'name': 'BMW'},
{'name': 'Audi'},
];
i need load one of this list like this
body: Column(
children: one.map((info) {
return Container(
child: SizedBox(
children: [
Text(
info['name'],
),
],
),
),
);
}).toList(),
));
all i want is to load one of the two lists depending on the id of my previous page
for example id 1 was passed then two.map should be loaded
I have created a variable on this page that is also passed, I tried to use variable.map but it doesn't work

Answer 1

If you have many lists, put your Lists into a List. With your variable from the previous page you can call the right List out of your data.
data[variable].map(info) { ....... }
Edit:
Step
create List<List> data ; their you can save all your list; when you want your List "one".
const List<List<dynamic>> data = [[{'name': 'USA'},{'name': 'Germany'},],[ {'name': 'BMW'},{'name': 'Audi'},]];
Step
put it into your widget tree and call the right data with your variable(x)(INTEGER) to get the right list and map it as before:
body: Column(
children: data[x].map((info) {
return Container(
child: SizedBox(
children: [
Text(
info['name'],
),
],
),
),
);
}).toList(),
));
If that isn't working you may have another problem in another topic.
Tom

Answer 2

ternary operator helps you
body: Column(
children:Your variable == 1
? one.map((info) {
return Container(
child: SizedBox(
child: Text(
info['name'],
),
),
);
}).toList()
: one.map((info) {
return Container(
child: SizedBox(
child: Text(
info['name'],
),
),
);
}).toList()),
);