hammerjs

2019-03-15 admin

hammerjs是什么

什么是hammerjs,A javascript library for multi-touch gestures

hammerjs使用教程帮助文档

hammer.js NPM Version NPM Downloads Build Status

A JavaScript library for detecting touch gestures.

Installation

NPM

npm install --save hammerjs

or

Yarn

yarn add hammerjs

or

CDN

https://cdnjs.com/libraries/hammer.js/

Usage

hammer.js has a quick start option for gestures it already recognizes.

// Get a reference to an element.
var square = document.querySelector('.square');

// Create an instance of Hammer with the reference.
var hammer = new Hammer(square);

// Subscribe to a quick start event: press, tap, or doubletap.
// For a full list of quick start events, read the documentation.
hammer.on('press', function(e) {
  e.target.classList.toggle('expand');
  console.log("You're pressing me!");
  console.log(e);
});

If you want to recognize your own gestures, such as tripletap, then you’ll have to use these steps:

// Get a reference to an element.
var square = document.querySelector('.square');

// Create a manager to manage the element.
var manager = new Hammer.Manager(square);

// Create a recognizer.
var TripleTap = new Hammer.Tap({
  event: 'tripletap',
  taps: 3
});

// Add the recognizer to the manager.
manager.add(TripleTap);

// Subscribe to the event.
manager.on('tripletap', function(e) {
  e.target.classList.toggle('expand');
  console.log("You're triple tapping me!");
  console.log(e);
});

Examples

Documentation

For further information regarding hammer.js, please read our documentation.

Contributions Github Issues Github PRs Slack

Feel encouraged to report issues or submit pull requests. When you’re ready to do either, read our contribution guidelines. If you’re looking for another form of contribution, we love help answering questions on our slack channel.

License

MIT

本站文章除注明转载外,均为本站原创或编译。欢迎任何形式的转载,但请务必注明出处。

转载请注明:文章转载自 JavaScript中文网 [https://www.javascriptcn.com]

本文地址:https://www.javascriptcn.com/read-57729.html

文章标题:hammerjs

回到顶部