CODEWITHSUNDEEP
flutter
Shojaeddin
Shojaeddin

Reputation: 121

How can I print two lists in one column in flutter?

I face this issue if I want to print two lists in a column in Flutter. As you know, we can print a list in column like below:

Column(
  children:List.generate(list1.length, (index)=>
    // some widgets here
  ),
)

But how can I generate it from two lists like below:

Column(
  children:<Widget> [
    // some widgets here,
    List.generate(list1.length, (index)=>
      // some widgets here
    ),
    List.generate(list2.length, (index)=>
      // some widgets here
    ),
  // some widgets here,
  ]
)

Upvotes: 0

Views: 876

Answers (1)

emerssso
emerssso

Reputation: 2386

You can use the spread operator for that:

 Column(
   children: [
     some widgets here,
     ...List.generate(list1.length, (index)=>
       // some widgets here
     ),
     ...List.generate(list2.length, (index)=>
       // some widgets here
     ),
     // some widgets here,
   ]
 )

Prior to 2.3.0 when the collections operators were introduced, you'd have to do this manually:

Column(
  children: [/* First widgets */]
    ..addAll(List.generate(...))
    ..addAll(List.generate(...)),
)

Upvotes: 3

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