Standalone jQuery "touch" method?
Solution 1
(function($) {
$.fn.swipe = function(options) {
// Default thresholds & swipe functions
var defaults = {
threshold: {
x: 30,
y: 10
},
swipeLeft: function() { alert('swiped left') },
swipeRight: function() { alert('swiped right') },
preventDefaultEvents: true
};
var options = $.extend(defaults, options);
if (!this) return false;
return this.each(function() {
var me = $(this)
// Private variables for each element
var originalCoord = { x: 0, y: 0 }
var finalCoord = { x: 0, y: 0 }
// Screen touched, store the original coordinate
function touchStart(event) {
console.log('Starting swipe gesture...')
originalCoord.x = event.targetTouches[0].pageX
originalCoord.y = event.targetTouches[0].pageY
}
// Store coordinates as finger is swiping
function touchMove(event) {
if (defaults.preventDefaultEvents)
event.preventDefault();
finalCoord.x = event.targetTouches[0].pageX // Updated X,Y coordinates
finalCoord.y = event.targetTouches[0].pageY
}
// Done Swiping
// Swipe should only be on X axis, ignore if swipe on Y axis
// Calculate if the swipe was left or right
function touchEnd(event) {
console.log('Ending swipe gesture...')
var changeY = originalCoord.y - finalCoord.y
if(changeY < defaults.threshold.y && changeY > (defaults.threshold.y*-1)) {
changeX = originalCoord.x - finalCoord.x
if(changeX > defaults.threshold.x) {
defaults.swipeLeft()
}
if(changeX < (defaults.threshold.x*-1)) {
defaults.swipeRight()
}
}
}
// Swipe was canceled
function touchCancel(event) {
console.log('Canceling swipe gesture...')
}
// Add gestures to all swipable areas
this.addEventListener("touchstart", touchStart, false);
this.addEventListener("touchmove", touchMove, false);
this.addEventListener("touchend", touchEnd, false);
this.addEventListener("touchcancel", touchCancel, false);
});
};
})(jQuery);
$('.swipe').swipe({
swipeLeft: function() { $('#someDiv').fadeIn() },
swipeRight: function() { $('#someDiv').fadeOut() },
})
and this is how you detect iphone
if((navigator.userAgent.match(/iPhone/i)) || (navigator.userAgent.match(/iPod/i))) {
if (document.cookie.indexOf("iphone_redirect=false") == -1) window.location = "path to iphone page";
}
Solution 2
There's also jQuery.touchwipe at http://www.netcu.de/jquery-touchwipe-iphone-ipad-library
Solution 3
The smallest and most jQuery-esque solution is here: https://github.com/eikes/jquery.swipe-events.js
dclowd9901
Updated on July 09, 2022Comments
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dclowd9901 almost 2 years
So, I'm looking to implement the ability for a plugin I wrote to read a touch "swipe" from a touch-capable internet device, like an iPhone, iPad or android.
Is there anything out there? I'm not looking for something as full as jQtouch, though was considering reverse engineering the code I would need out of it.
Any suggestions on the best way to approach this? A snippet of code already available?
Addendum: I realize in hindsight the solution won't strictly be jQuery, as I'm pretty sure there aren't any built-in methods to handle this. I would expect standard Javascript to find itself in the answer.
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dclowd9901 about 14 yearsAwesome! I'm going to try this and then update the post, hopefully with a chosen answer.
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dclowd9901 about 14 yearsWorked brilliantly. I changed it up a bit so that it could be initialized through my plugin, but it's a great bit of code. Thanks much!
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Peder Rice almost 14 yearsThe swipe plugin for jQuery can be found here plugins.jquery.com/project/swipe
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Oskar Austegard over 13 yearsBoth jSwipe and James Lin's solution work reasonably well for that one use case - "i want to detect a touch and drag that exceeds a given length". However this does not fully simulate native iOS/Android behavior, which is far more complex. For one, each solution cancels the default behavior of the touch move - what if you want the "swiped" element to move as you swipe (i.e. pan) instead of waiting for the swipe to end? Or if a short, fast swipe should be equal to a longer, slower swipe? Touch gestures are more about inertia and momentum than mere movement. A good solution is still missing.
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Jordan Lev over 12 yearsDoes anyone know if this works on Android as well? (I don't have an android device myself to test it on)