Check if ListView is empty in flutter

Question

Is there a way to check if ListView is empty.

ListView.builder(
  itemCount: _items.length,
  itemBuilder: (context, index) {
    return _buildFilteredItem(context, index);
  },
)

I want to search through my items and if its empty show a Text widget saying no items found. _buildFilteredItem returns null if the item could not be found.

Andrii Turkovskyi · Accepted Answer · 2018-11-15 17:03:05Z

43

Check _items before creating ListView

return _items.isEmpty ? Center(child: Text('Empty')) : ListView.builder(
  itemCount: _items.length,
  itemBuilder: (context, index) {
    return _buildFilteredItem(context, index);
  },
)

answered Nov 15, 2018 at 17:03

Andrii Turkovskyi

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5 Comments

EngineSense Over a year ago

what if the _items is null?

Andrii Turkovskyi Over a year ago

If it can be null - you may change _items.isEmpty to (_items?.isEmpty ?? true)

EngineSense Over a year ago

I can't use your above commented code, i have the same Listview.builder to check the list items are null or empty. more errors are pops up.

EngineSense Over a year ago

locations == null ? Center(child: Text('Empty')) : ListView.builder() seems to be works

Andrii Turkovskyi Over a year ago

In you example you're checking only for null not for empty. And for empty list you'll get empty screen without placeholder. Could you describe what errors are popping up?

vinchuli · Accepted Answer · 2022-06-18 11:32:45Z

-2

To check for empty list the you can do

ListView.builder(
   itemCount:_items.length, 
   builder:(context, index){ 
      _items.length==0
      ?return Center(child:Text("List is empty"))
      :return _buildFilteredItem(context, index);})

answered Jun 18, 2022 at 11:32

vinchuli

5456 silver badges7 bronze badges

1 Comment

Ziku Over a year ago

List builder won't build the widget at all if the item list is empty

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