对于列车上的人来说，我们这些仰躺着望天的孩子只是呼啸而过的风景他们却不知到这些孩子曾偷偷的哭过多少回。
Touch.js手势库是专门在Webkit内核浏览器的移动设备中使用中设计的, Touch.js是移动设备上的手势识别与事件库。Touch.js基于原生事件,支持事件代理, 性能更好，极简的API,秒速上手等优势。
1、旋转事件- 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、双指缩放事件-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("当前缩放比例为:" + currentScale + ".");
});
touch.on('#target', 'pinchend', function(ev){
initialScale = currentScale;
});
3、识别单击, 双击和长按事件-Tap & Hold
touch.on('#target', 'hold tap doubletap', function(ev){
//console.log(ev.type);
});
4、向左, 向右滑动-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("向右滑动.");
});
touch.on(target, 'swipeleft', function(ev){
log("向左滑动.");
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("当前x值为:" + dx + ", 当前y值为:" + 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官方网站：http://touch.code.baidu.com/
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
