微信小程序大转盘 示例源码

大转盘的背景图可以换成 具体的奖项图片

//index.js//获取应用实例var app = getApp()var cxt_arc;var timer;var n=1;var timer;var which = 1;//中奖项var luck = ["5积分", "5金币", "10积分", "10金币", "谢谢参与", "20金币"];//定义奖项Page({ data: { animationData:{},//动画 isclick: "start",//按钮事件 hiddenModal:true,//弹框是否隐藏 detail: "恭喜您获得" luck[which-1]//弹框内容 }, //事件处理函数 bindViewTap: function() { wx.navigateTo({ url: '../logs/logs' }) }, onLoad: function () { if (app.globalData.userInfo) { this.setData({ userInfo: app.globalData.userInfo, hasUserInfo: true }) } else if (this.data.canIUse){ // 由于 getUserInfo 是网络请求，可能会在 Page.onLoad 之后才返回 // 所以此处加入 callback 以防止这种情况 app.userInfoReadyCallback = res => { this.setData({ userInfo: res.userInfo, hasUserInfo: true }) } } else { // 在没有 open-type=getUserInfo 版本的兼容处理 wx.getUserInfo({ success: res => { app.globalData.userInfo = res.userInfo this.setData({ userInfo: res.userInfo, hasUserInfo: true }) } }) } }, getUserInfo: function(e) { console.log(e) app.globalData.userInfo = e.detail.userInfo this.setData({ userInfo: e.detail.userInfo, hasUserInfo: true }) }, start: function (e) { var _this = this; n=1; this.setData({ isclick: "stop" }) reset.call(_this); timer = setInterval(function () { //开始旋转 star.call(_this); // n ; } , 300); //启动动画 function star() { console.log("开始动画.....") var animation = wx.createAnimation({ transformOrigin: "50% 50%", duration: 300, timingFunction: "linear" }); animation.rotate(360*n).step(); this.setData({ animationData: animation.export() }) } //重置动画 function reset() { console.log("重置动画.....") var animation = wx.createAnimation({ transformOrigin: "50% 50%", duration: 0, timingFunction: "linear" }); animation.rotate(0).step(); this.setData({ animationData: animation.export() }) } }, stop: function (e) { var _this = this; this.setData({ isclick:"" }) clearInterval(timer); timer = null; console.log("结束动画....."); sto.call(_this); function sto() { console.log("重置动画.....") var animation = wx.createAnimation({ transformOrigin: "50% 50%", duration: 1.4 * (2160 - (which - 1) * 60), timingFunction: "ease-out" }); console.log(Math.random()*60); animation.rotate(360 * n (2160 - ((which-2) * 60) - 35 - (Math.random() * 50))).step(); this.setData({ animationData: animation.export() }) } timer = setTimeout(function () { _this.setData({ hiddenModal: false }) } , 1.4 * (2160 - (which - 1) * 60 300)); }, listenerConfirm: function (e) { var _this = this; this.setData({ hiddenModal:true, isclick: "start" }) reset.call(_this); function reset() { console.log("重置动画.....") var animation = wx.createAnimation({ transformOrigin: "50% 50%", duration: 0, timingFunction: "linear" }); animation.rotate(0).step(); this.setData({ animationData: animation.export() }) } }})// //index.js// //获取应用实例// const app = getApp()// Page({// data: {// motto: 'Hello World',// userInfo: {},// hasUserInfo: false,// canIUse: wx.canIUse('button.open-type.getUserInfo')// },// //事件处理函数// bindViewTap: function() {// wx.navigateTo({// url: '../logs/logs'// })// },// onLoad: function () {// if (app.globalData.userInfo) {// this.setData({// userInfo: app.globalData.userInfo,// hasUserInfo: true// })// } else if (this.data.canIUse){// // 由于 getUserInfo 是网络请求，可能会在 Page.onLoad 之后才返回// // 所以此处加入 callback 以防止这种情况// app.userInfoReadyCallback = res => {// this.setData({// userInfo: res.userInfo,// hasUserInfo: true// })// }// } else {// // 在没有 open-type=getUserInfo 版本的兼容处理// wx.getUserInfo({// success: res => {// app.globalData.userInfo = res.userInfo// this.setData({// userInfo: res.userInfo,// hasUserInfo: true// })// }// })// }// },// getUserInfo: function(e) {// console.log(e)// app.globalData.userInfo = e.detail.userInfo// this.setData({// userInfo: e.detail.userInfo,// hasUserInfo: true// })// }// })