wxml:
1 <view id="id" class = "ball" bindtap = "handletap" bindtouchstart = "handletouchtart" bindtouchmove="handletouchmove" bindtouchend="handletouchend" style = "width : 100%px; height : 40px;"> 2 {{text}} 3 </view>
wxss:
1 .ball { 2 box-shadow:2px 2px 10px #AAA; 3 border-radius: 20px; 4 position: absolute; 5 }
js:
1 //js 2 Page({ 3 data: { 4 lastX: 0, //滑动开始x轴位置 5 lastY: 0, //滑动开始y轴位置 6 text: "没有滑动", 7 currentGesture: 0, //标识手势 8 }, 9 //滑动移动事件 10 handletouchmove: function (event) { 11 var currentX = event.touches[0].pageX 12 var currentY = event.touches[0].pageY 13 var tx = currentX - this.data.lastX 14 var ty = currentY - this.data.lastY 15 var text = "" 16 //左右方向滑动 17 if (Math.abs(tx) > Math.abs(ty)) { 18 if (tx < 0) 19 text = "向左滑动" 20 else if (tx > 0) 21 text = "向右滑动" 22 } 23 //上下方向滑动 24 else { 25 if (ty < 0) 26 text = "向上滑动" 27 else if (ty > 0) 28 text = "向下滑动" 29 } 30 31 //将当前坐标进行保存以进行下一次计算 32 this.data.lastX = currentX 33 this.data.lastY = currentY 34 this.setData({ 35 text: text, 36 }); 37 }, 38 39 //滑动开始事件 40 handletouchtart: function (event) { 41 this.data.lastX = event.touches[0].pageX 42 this.data.lastY = event.touches[0].pageY 43 }, 44 //滑动结束事件 45 handletouchend: function (event) { 46 this.data.currentGesture = 0; 47 this.setData({ 48 text: "没有滑动", 49 }); 50 }, 51 })
原文:http://blog.csdn.net/crazytea/article/details/53228755