微信小程序-实现元素渐入渐出动画效果-封装方法

app.js:

App({
  //渐入，渐出实现 
  show : function(that,param,opacity){
    var animation = wx.createAnimation({
      //持续时间800ms
      duration: 800,
      timingFunction: 'ease',
    });
    //var animation = this.animation
    animation.opacity(opacity).step()
    //将param转换为key
    var json = '{"' + param + '":""}'
    json = JSON.parse(json);
    json[param] = animation.export()
    //设置动画
    that.setData(json)
  },

  //滑动渐入渐出
  slideupshow:function(that,param,px,opacity){
    var animation = wx.createAnimation({
      duration: 800,
      timingFunction: 'ease',
    });
    animation.translateY(px).opacity(opacity).step()
    //将param转换为key
    var json = '{"' + param + '":""}'
    json = JSON.parse(json);
    json[param] = animation.export()
    //设置动画
    that.setData(json)
  },

  //向右滑动渐入渐出
  sliderightshow: function (that, param, px, opacity) {
    var animation = wx.createAnimation({
      duration: 800,
      timingFunction: 'ease',
    });
    animation.translateX(px).opacity(opacity).step()
    //将param转换为key
    var json = '{"' + param + '":""}'
    json = JSON.parse(json);
    json[param] = animation.export()
    //设置动画
    that.setData(json)
  }
})

转载自CSDN博客

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