Question 1

How do I customize the suggestions box decoration in Flutter TypeAhead?

Accepted Answer

Use the decorationBuilder property to wrap the suggestions with custom widgets, such as a Material card with elevation and borderRadius. The README provides an example where decorationBuilder returns a Material widget with specific styling.

Question 2

Flutter TypeAhead vs Flutter's built-in Autocomplete: which is better?

Accepted Answer

Flutter TypeAhead excels when you need extensive customization, platform-specific designs, or manual control over the suggestions box. For simpler use cases, Flutter's built-in Autocomplete might be easier and sufficient, as hinted in the migration notes comparing the two.

Question 3

Why are my Flutter TypeAhead suggestions not updating when I type?

Accepted Answer

This often happens if you don't pass the provided controller and focus node to the TextField in the builder property. Ensure you use the controller and focusNode from the builder, as emphasized in the FAQ's troubleshooting section.

Question 4

How to manually show or hide the suggestions box in Flutter TypeAhead?

Accepted Answer

Use the SuggestionsController's open and close methods. For instance, call open(gainFocus: false) to display the box without focusing it, detailed in the 'Controlling the focus' part of the README.

Question 5

How to fix Flutter TypeAhead suggestions box disappearing when scrolling?

Accepted Answer

Avoid virtualizing scrollables like ListView; use SingleChildScrollView instead or constrain the max height with BoxConstraints(maxHeight: 200). The FAQ explains this is due to the overlay resizing as widgets are unmounted during scrolling.

Question 6

How to handle errors and loading states in Flutter TypeAhead?

Accepted Answer

Customize these states using the errorBuilder and loadingBuilder properties. You can also control visibility with hideOnError and hideOnLoading flags, as described in the 'Customizing the loading, error and empty message' section.

Typeahead

What is Typeahead?

Overview

Use Cases

Best For

Related Projects

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions