微信小程序开发之『弹出菜单』特效

先看下效果图. 

代码: 

1.popMenu.js

Page({
    data: {
        isPopping: false,//是否已经弹出
        animPlus: {},//旋转动画
        animCollect: {},//item位移,透明度
        animTranspond: {},//item位移,透明度
        animInput: {},//item位移,透明度
    },
    //点击弹出
    plus: function () {
        if (this.data.isPopping) {
            //缩回动画
            this.popp();
            this.setData({
                isPopping: false
            })
        } else if (!this.data.isPopping) {
            //弹出动画
            this.takeback();
            this.setData({
                isPopping: true
            })
        }
    },
    input: function () {
        console.log("input")
    },
    transpond: function () {
        console.log("transpond")
    },
    collect: function () {
        console.log("collect")
    },

    //弹出动画
    popp: function () {
        //plus顺时针旋转
        var animationPlus = wx.createAnimation({
            duration: 500,
            timingFunction: 'ease-out'
        })
        var animationcollect = wx.createAnimation({
            duration: 500,
            timingFunction: 'ease-out'
        })
        var animationTranspond = wx.createAnimation({
            duration: 500,
            timingFunction: 'ease-out'
        })
        var animationInput = wx.createAnimation({
            duration: 500,
            timingFunction: 'ease-out'
        })
        animationPlus.rotateZ(180).step();
        animationcollect.translate(-100, -100).rotateZ(180).opacity(1).step();
        animationTranspond.translate(-140, 0).rotateZ(180).opacity(1).step();
        animationInput.translate(-100, 100).rotateZ(180).opacity(1).step();
        this.setData({
            animPlus: animationPlus.export(),
            animCollect: animationcollect.export(),
            animTranspond: animationTranspond.export(),
            animInput: animationInput.export(),
        })
    },
    //收回动画
    takeback: function () {
        //plus逆时针旋转
        var animationPlus = wx.createAnimation({
            duration: 500,
            timingFunction: 'ease-out'
        })
        var animationcollect = wx.createAnimation({
            duration: 500,
            timingFunction: 'ease-out'
        })
        var animationTranspond = wx.createAnimation({
            duration: 500,
            timingFunction: 'ease-out'
        })
        var animationInput = wx.createAnimation({
            duration: 500,
            timingFunction: 'ease-out'
        })
        animationPlus.rotateZ(0).step();
        animationcollect.translate(0, 0).rotateZ(0).opacity(0).step();
        animationTranspond.translate(0, 0).rotateZ(0).opacity(0).step();
        animationInput.translate(0, 0).rotateZ(0).opacity(0).step();
        this.setData({
            animPlus: animationPlus.export(),
            animCollect: animationcollect.export(),
            animTranspond: animationTranspond.export(),
            animInput: animationInput.export(),
        })
    },


    onLoad: function (options) {
        // 生命周期函数--监听页面加载
    },
    onReady: function () {
        // 生命周期函数--监听页面初次渲染完成
    },
    onShow: function () {
        // 生命周期函数--监听页面显示
    },
    onHide: function () {
        // 生命周期函数--监听页面隐藏
    },
    onUnload: function () {
        // 生命周期函数--监听页面卸载
    },
    onPullDownRefresh: function () {
        // 页面相关事件处理函数--监听用户下拉动作
    },
    onReachBottom: function () {
        // 页面上拉触底事件的处理函数
    },
    onShareAppMessage: function () {
        // 用户点击右上角分享
        return {
            title: 'title', // 分享标题
            desc: 'desc', // 分享描述
            path: 'path' // 分享路径
        }
    }
})

2.popMenu.wxml

3.popMenu.wxss

.img-plus-style {
  height: 150rpx;
  width: 150rpx;
  position: absolute;
  bottom: 250rpx;
  right: 100rpx;
  z-index: 100;
}

.img-style {
  height: 150rpx;
  width: 150rpx;
  position: absolute;
  bottom: 250rpx;
  right: 100rpx;
  opacity: 0;
}