holding_gesture

A customized GestureDetector that acts on holding a determined Widget.

Getting Started

import 'package:holding_gesture/holding_gesture.dart';

After importing, all you have to do is use HoldDetector the same way you already used GestureDetector! As it is on the documentation, its onTap override won't work when using a child that has onPressed or a similar callback, so you should pass the single tap behaviour to that.

@override
Widget build(BuildContext context) {
  return MaterialApp(
    home: Scaffold(
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Padding(
              padding: const EdgeInsets.all(16.0),
              child: Text(
                'You have pushed (or held) the button this many times:',
                textAlign: TextAlign.center,
              ),
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.display1,
            ),
          ],
        ),
      ),
      floatingActionButton: HoldDetector(
        onHold: _incrementCounter,
        holdTimeout: Duration(milliseconds: 200),
        enableHapticFeedback: true,
        child: FloatingActionButton(
          child: Icon(Icons.add),
          onPressed: _incrementCounter,
      ),
    ),
  ),
);

The main example, above and in example/, is the same as the default Flutter app, with the adition of a haptic feedback to each tick and the ability to hold the button to keep adding to the counter.

For help getting started with Flutter, view our online documentation.

For help on editing package code, view the documentation.

Libraries

holding_gesture

Dart

VM

dart:ffi
Foreign Function Interface for interoperability with the C programming language. [...]

Web

dart:html
HTML elements and other resources for web-based applications that need to interact with the browser and the DOM (Document Object Model). [...]
dart:js
Low-level support for interoperating with JavaScript. [...]
dart:js_util
Utility methods to efficiently manipulate typed JSInterop objects in cases where the name to call is not known at runtime. You should only use these methods when the same effect cannot be achieved with @JS annotations. These methods would be extension methods on JSObject if Dart supported extension methods.