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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>Flutter samples</title>
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<link href="styles.css" rel="stylesheet" media="screen">
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<link href="https://fonts.googleapis.com/css?family=Google+Sans|Google+Sans+Display|Roboto:300,400,500&display=swap" rel="stylesheet">
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<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<script src="packages/mdc_web/material-components-web.min.js"></script>
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<script src="https://kit.fontawesome.com/16cc04762e.js"></script>
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<script defer src="description.dart.js"></script>
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</head>
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<body>
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<div class="content">
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<div class="navbar">
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<a class="leading" href="./">
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<img src="images/logos/logo_lockup_flutter_horizontal_wht_96.png" />
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<span class="title">Samples</span>
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</a>
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<div class="nav-items">
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<a href="https://flutter.dev/">Flutter Home</a>
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<a href="https://api.flutter.dev/">API Docs</a>
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</div>
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</div>
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<div class="container">
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<div class="description-title-row">
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<h1>Handle changes to a text field</h1>
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<div class="type-label type-label-bordered">cookbook</div>
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</div>
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<p>By Flutter</p>
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<div class="toolbar">
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<div class="buttons">
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<button class="mdc-button mdc-button--outlined" onclick="window.location.href = 'https://flutter.dev/docs/cookbook/forms/text-field-changes.html';"> <span class="mdc-button__ripple"></span>View Recipe</button>
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</div>
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<div class="tags-container">
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<div class="tags-label">
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<i class="material-icons">local_offer</i>
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<span>Tags</span>
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</div>
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<div class="tags">
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<a href="./#?search=tag%3Acookbook">cookbook</a>
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<a href="./#?search=tag%3Aforms">forms</a>
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</div>
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</div>
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</div>
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<div class="slider-container">
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<div class="slider-content">
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<div class="slider-single"><img class="slider-single-image" src="images/cookbook/forms-text-field-changes.png" alt="Cookbook article" /></div>
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</div>
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</div>
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<div class="description">
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<p>In some cases, it’s useful to run a callback function every time the text
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in a text field changes. For example, you might want to build a search
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screen with autocomplete functionality where you want to update the
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results as the user types.</p>
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</div>
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</div>
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</div>
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</body>
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<div class="footer">
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<span>© Flutter 2020</span>
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</div>
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</html>
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