Touch.js手勢庫是專門在Webkit內(nèi)核瀏覽器的移動設(shè)備中使用中設(shè)計的, Touch.js是移動設(shè)備上的手勢識別與事件庫。Touch.js基于原生事件,支持事件代理, 性能更好，極簡的API,秒速上手等優(yōu)勢。
1、旋轉(zhuǎn)事件- startRotate
var angle = 0;touch.on('#target', 'touchstart', function(ev){ev.startRotate();ev.preventDefault();});touch.on('#target', 'rotate', function(ev){var totalAngle = angle + ev.rotation;if(ev.fingerStatus === 'end'){angle = angle + ev.rotation;}this.style.webkitTransform = 'rotate(' + totalAngle + 'deg)';});2、雙指縮放事件-Scale
var target = document.getElementById("target");target.style.webkitTransition = 'all ease 0.05s';touch.on('#target', 'touchstart', function(ev){ev.preventDefault();});var initialScale = 1;var currentScale;touch.on('#target', 'pinchend', function(ev){currentScale = ev.scale - 1;currentScale = initialScale + currentScale;currentScale = currentScale > 2 ? 2 : currentScale;currentScale = currentScale < 1 ? 1 : currentScale;this.style.webkitTransform = 'scale(' + currentScale + ')';log("當(dāng)前縮放比例為:" + currentScale + ".");});touch.on('#target', 'pinchend', function(ev){initialScale = currentScale;});3、識別單擊, 雙擊和長按事件-Tap & Hold
touch.on('#target', 'hold tap doubletap', function(ev){//console.log(ev.type);});4、向左, 向右滑動-Swipe
touch.on('#target', 'touchstart', function(ev){ev.preventDefault();});var target = document.getElementById("target");target.style.webkitTransition = 'all ease 0.2s';touch.on(target, 'swiperight', function(ev){this.style.webkitTransform = "translate3d(" + rt + "px,0,0)";log("向右滑動.");});touch.on(target, 'swipeleft', function(ev){log("向左滑動.");this.style.webkitTransform = "translate3d(-" + this.offsetLeft + "px,0,0)";});5、拖拽事件-Drag
touch.on('#target', 'touchstart', function(ev){ev.preventDefault();});var target = document.getElementById("target");var dx, dy;touch.on('#target', 'drag', function(ev){dx = dx || 0;dy = dy || 0;log("當(dāng)前x值為:" + dx + ", 當(dāng)前y值為:" + dy +".");var offx = dx + ev.x + "px";var offy = dy + ev.y + "px";this.style.webkitTransform = "translate3d(" + offx + "," + offy + ",0)";});touch.on('#target', 'dragend', function(ev){dx += ev.x;dy += ev.y;});6、原生事件-Touch
touch.on('#target', 'touchstart touchmove touchend', function(ev){console.log(ev.type);});touch.js官方網(wǎng)站：http://touch.code.baidu.com/
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