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https://github.com/4inka/flutter_easy_autocomplete

Flutter widget to help you manage textfield suggestions
https://github.com/4inka/flutter_easy_autocomplete

async-autocomplete async-search autocomplete autocomplete-search flutter flutter-autocomplete flutter-package

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Flutter widget to help you manage textfield suggestions

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README

        

# Easy Autocomplete


Buy Me A Pizza

A Flutter plugin to handle input autocomplete suggestions

# Preview
![Preview](https://raw.githubusercontent.com/4inka/flutter_easy_autocomplete/main/preview/preview1.gif)

# Table of contents

* [ToDo](#todo)
* [Done](#done)
* [Installation](#installation)
* [Basic example](#basic-example)
* [Example with customized style](#example-with-customized-style)
* [Example with asynchronous data fetch](#example-with-asynchronous-data-fetch)
* [API](#api)
* [Issues & Suggestions](#issues--suggestions)

## ToDo
* Add validation functionality
* Add possibility to show empty message when no suggestion is found
## Done
* Add asynchronous suggestions fetch
* Add possibility to customize suggestions list item

## Installation

In the `pubspec.yaml` of your flutter project, add the following dependency:

``` yaml
dependencies:
...
easy_autocomplete: ^1.6.0
```

## Basic example

You can create a simple autocomplete input widget as shown in first preview with the following example:

``` dart
import 'package:easy_autocomplete/easy_autocomplete.dart';
import 'package:flutter/material.dart';

void main() {
runApp(MyApp());
}

class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Example',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: SafeArea(
child: Scaffold(
appBar: AppBar(
title: Text('Example')
),
body: Container(
padding: EdgeInsets.all(10),
alignment: Alignment.center,
child: EasyAutocomplete(
suggestions: ['Afeganistan', 'Albania', 'Algeria', 'Australia', 'Brazil', 'German', 'Madagascar', 'Mozambique', 'Portugal', 'Zambia'],
onChanged: (value) => print('onChanged value: $value'),
onSubmitted: (value) => print('onSubmitted value: $value')
)
)
)
)
);
}
}
```

## Example with customized style

You can customize other aspects of the autocomplete widget such as the suggestions text style, background color and others as shown in example below:

``` dart
import 'package:easy_autocomplete/easy_autocomplete.dart';
import 'package:flutter/material.dart';

void main() {
runApp(MyApp());
}

class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Example',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: SafeArea(
child: Scaffold(
appBar: AppBar(
title: Text('Example')
),
body: Container(
padding: EdgeInsets.all(10),
alignment: Alignment.center,
child: EasyAutocomplete(
suggestions: ['Afeganistan', 'Albania', 'Algeria', 'Australia', 'Brazil', 'German', 'Madagascar', 'Mozambique', 'Portugal', 'Zambia'],
cursorColor: Colors.purple,
decoration: InputDecoration(
contentPadding: EdgeInsets.symmetric(vertical: 0, horizontal: 10),
focusedBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(5),
borderSide: BorderSide(
color: Colors.purple,
style: BorderStyle.solid
)
),
enabledBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(5),
borderSide: BorderSide(
color: Colors.purple,
style: BorderStyle.solid
)
)
),
suggestionBuilder: (data) {
return Container(
margin: EdgeInsets.all(1),
padding: EdgeInsets.all(5),
decoration: BoxDecoration(
color: Colors.purple,
borderRadius: BorderRadius.circular(5)
),
child: Text(
data,
style: TextStyle(
color: Colors.white
)
)
);
}
onChanged: (value) => print(value)
)
)
)
)
);
}
}
```
The above example will generate something like below preview:

![Preview](https://raw.githubusercontent.com/4inka/flutter_easy_autocomplete/main/preview/preview2.gif)

## Example with asynchronous data fetch

To create a autocomplete field that fetches data asynchronously you will need to use `asyncSuggestions` instead of `suggestions`
``` dart
import 'package:easy_autocomplete/easy_autocomplete.dart';
import 'package:flutter/material.dart';

void main() {
runApp(MyApp());
}

class MyApp extends StatelessWidget {
Future> _fetchSuggestions(String searchValue) async {
await Future.delayed(Duration(milliseconds: 750));
List _suggestions = ['Afeganistan', 'Albania', 'Algeria', 'Australia', 'Brazil', 'German', 'Madagascar', 'Mozambique', 'Portugal', 'Zambia'];
List _filteredSuggestions = _suggestions.where((element) {
return element.toLowerCase().contains(searchValue.toLowerCase());
}).toList();
return _filteredSuggestions;
}

@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Example',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: SafeArea(
child: Scaffold(
appBar: AppBar(
title: Text('Example')
),
body: Container(
padding: EdgeInsets.all(10),
alignment: Alignment.center,
child: EasyAutocomplete(
asyncSuggestions: (searchValue) async => _fetchSuggestions(searchValue),
onChanged: (value) => print(value)
)
)
)
)
);
}
}
```

The above example will generate something like below preview:

![Preview](https://raw.githubusercontent.com/4inka/flutter_easy_autocomplete/main/preview/preview3.gif)

## API
| Attribute | Type | Required | Description | Default value |
|:---|:---|:---:|:---|:---|
| suggestions | `List` | :x: | The list of suggestions to be displayed | |
| asyncSuggestions | `Future> Function(String)` | :x: | Fetches list of suggestions from a Future | |
| controller | `TextEditingController` | :x: | Text editing controller | |
| validator | `String Function(String?)` | :x: | Validate the autocomplete field value | |
| decoration | `InputDecoration` | :x: | Can be used to decorate the input | |
| onChanged | `Function(String)` | :x: | Function that handles the changes to the input | |
| inputFormatter | `List` | :x: | Can be used to set custom inputFormatters to field | |
| initialValue | `String` | :x: | Can be used to set the textfield initial value | |
| textCapitalization | `TextCapitalization` | :x: | Can be used to set the text capitalization type | TextCapitalization.sentences |
| autofocus | `bool` | :x: | Determines if should gain focus on screen open | false |
| focusNode | `FocusNode` | :x: | Can be used to manage TextField focus | |
| keyboardType | `TextInputType` | :x: | Can be used to set different keyboardTypes to your field | TextInputType.text |
| cursorColor | `Color` | :x: | Can be used to set a custom color to the input cursor | Colors.blue |
| inputTextStyle | `TextStyle` | :x: | Can be used to set custom style to the suggestions textfield | |
| suggestionTextStyle | `TextStyle` | :x: | Can be used to set custom style to the suggestions list text | |
| suggestionBackgroundColor | `Color` | :x: | Can be used to set custom background color to suggestions list | |
| debounceDuration | `Duration` | :x: | Used to set the debounce time for async data fetch | Duration(milliseconds: 400) |
| suggestionBuilder | `Widget Function(String)` | :x: | Can be used to customize suggestion items | |
| progressIndicatorBuilder | `Widget` | :x: | Can be used to display custom progress idnicator | |

## Issues & Suggestions
If you encounter any issue you or want to leave a suggestion you can do it by filling an [issue](https://github.com/4inka/flutter_easy_autocomplete/issues).

## Contributions
Here's the list of our awesome contributors:
- [Prateek Sunal](https://github.com/prateekmedia)
- [Miklos Zsido](https://github.com/zsmiklos)

### Thank you for the support!