One common task developers often face is adding a new item at the first index of a list in flutter. In this post, we’ll explore a straightforward approach to accomplish this in Flutter.
Create a List
First, create a list that you want to modify. For this example, let’s consider a list of strings:
List<String> myStringList = ['Item 1', 'Item 2', 'Item 3'];
Add a New Item at the First Index
To add a new item at the first index of the list, you can use the insert
method provided by the List
class. Here’s how you can do it:
myStringList.insert(0, 'New Item');
Update the UI
When you’re working with Flutter, chances are you want to reflect this change in your UI. For instance, if you are displaying the list in a widget, you might want to trigger a rebuild:
setState(() {
// Update any UI components that rely on myStringList
});