when use the hammer.js default 'doubletap'
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<title>Document</title>
<style media="screen">
.box {
width: 400px;
height: 400px;
background-color: green;
}
</style>
</head>
<body>
<div class="box">
</div>
<script src="js/hammer.js" charset="utf-8"></script>
<script type="text/javascript">
document.addEventListener("DOMContentLoaded", function () {
var myElement = document.querySelector('.box')
var hammer = new Hammer(myElement)
hammer.on('doubletap', function (e) {
console.log(e.type)
}).on('tap', function (e) {
console.log(e.type)
})
})
</script>
</body>
</html>
when I double tap, it print 'tap' twice, and 'doubletap' once, but I want it just print 'doubletap', don't fire the 'tap'.
I try requreFailure http://hammerjs.github.io/require-failure/ and Hammer.js : How to handle / set tap and doubletap on same elements
so I write this:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<title>Document</title>
<style media="screen">
.box {
width: 400px;
height: 400px;
background-color: green;
}
</style>
</head>
<body>
<div class="box">
</div>
<script src="js/hammer.js" charset="utf-8"></script>
<script type="text/javascript">
document.addEventListener("DOMContentLoaded", function () {
var myElement = document.querySelector('.box')
var hammer = new Hammer(myElement)
var singleTap = new Hammer.Tap({ event: 'singletap' });
var doubleTap = new Hammer.Tap({event: 'doubletap', taps: 2 });
hammer.add([doubleTap, singleTap]);
doubleTap.recognizeWith(singleTap);
singleTap.requireFailure([doubleTap]);
hammer.on('doubletap', function (e) {
console.log(e.type)
}).on('singletap', function (e) {
console.log(e.type)
})
})
</script>
</body>
</html>
But it doesn't console.log anything(even error message), it's really weird. The hammer's version is 2.0.8. sorry for my poor English, hope that's clear.