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A simple swipe detection on vanilla js
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| var touchstartX = 0; | |
| var touchstartY = 0; | |
| var touchendX = 0; | |
| var touchendY = 0; | |
| var gesuredZone = document.getElementById('gesuredZone'); | |
| gesuredZone.addEventListener('touchstart', function(event) { | |
| touchstartX = event.changedTouches[0].pageX; | |
| touchstartY = event.changedTouches[0].pageY; | |
| }, false); | |
| gesuredZone.addEventListener('touchend', function(event) { | |
| touchendX = event.changedTouches[0].pageX; | |
| touchendY = event.changedTouches[0].pageY; | |
| handleGesure(); | |
| }, false); | |
| function handleGesure() { | |
| var swiped = 'swiped: '; | |
| if (touchendX < touchstartX) { | |
| alert(swiped + 'left!'); | |
| } | |
| if (touchendX > touchstartX) { | |
| alert(swiped + 'right!'); | |
| } | |
| if (touchendY < touchstartY) { | |
| alert(swiped + 'down!'); | |
| } | |
| if (touchendY > touchstartY) { | |
| alert(swiped + 'left!'); | |
| } | |
| if (touchendY == touchstartY) { | |
| alert('tap!'); | |
| } | |
| } |
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