本篇文章给大家带来的内容是关于小程序中多滑块的实现代码 ,有一定的参考价值,有需要的朋友可以参考一下,希望对你有所帮助。
最近在用原生的代码开发小程序,需要用到多滑块的slider,但是官方的api只支持单滑块,所以就在原来的基础上草草的写了一个。有什么不足的地方还请大家多多指教,想封装成组件的也可自行封装,我这就不讲了。;
话不多说,上代码:
html:
¥{{leftShowValue}} ¥{{rightShowValue}}
css
.sliderHCon { height: 250rpx; width: 100%; margin: auto; display: flex; justify-content: center; align-items: center; flex-direction: column; }.MoneyValue {
font-size: 30rpx;
text-align: center;
color: #999;
margin-top: 15rpx;
}.showMoney text {
margin-right: 30rpx;
}.twoSlider {
width: 100%;
height:100px;
display: flex;
flex-direction: row;
justify-content: center;
align-items: center;
position: relative;
}
.slider-left,.slider-right{position: absolute;left:0;right:0;}
.slider-bg{position: absolute;top:50%;margin-top:-1px;left:0;width:100%;height:2px;background: blue;z-index: 9;}
js
data: {
blockSize:20,step:10,Min: 0,//最小值
Max: 1000,//最大值
leftValue: 0,//左边滑块默认值
rightValue: 1000,//右边滑块默认值
leftShowValue: 0,//界面显示左边滑块默认值
rightShowValue: 1000,//界面显示右边滑块默认值
leftWidth: '50',//左边滑块可滑动长度:百分比
rightWidth: '50',//右边滑块可滑动长度:百分比
sliderWidth:0,// slider的宽度;
setSliderLeftX: 0,// 设置的sliderp的left
setSliderWidthX: 0// 设置的sliderp的width
},onLoad(options) {
var query = wx.createSelectorQuery(); // 如果是封装的组件的话,这边请注意写法不同哦;
query.select('.slider-left').boundingClientRect((rect) => {
this.setData({
sliderWidth: rect.width,setSliderLeftX: (rect.width / this.data.Max this.data.leftValue) + this.data.blockSize/2 + 'px',setSliderWidthX: rect.width / this.data.Max (this.data.rightValue - this.data.leftValue) - this.data.blockSize + 'px',})}).exec(); },// 左边滑块滑动的值
leftChange(e){
var that = this; that.setData({ leftValue: e.detail.value //设置左边当前值 }) this.setSliderBgColor(e,'left');
},// 右边滑块滑动的值
rightChange: function (e) {
var that = this;
that.setData({
rightValue: e.detail.value,})
this.setSliderBgColor(e,'right');
},setSliderBgColor(e,type){
if (type == 'left') { // 左边
if (this.data.leftValue < this.data.rightValue) {
console.log('拖左不超右边');
this.setData({
leftShowValue: e.detail.value,})
this.setData({
rightShowValue: this.data.rightValue,})
} else {
console.log('拖左超右边');
this.setData({
leftShowValue: this.data.rightValue,})
this.setData({
rightShowValue: e.detail.value,})
}
} else { // 右边
if (this.data.leftValue < this.data.rightValue) {
console.log('拖右不超右边');
this.setData({
rightShowValue: e.detail.value,})
this.setData({
leftShowValue: this.data.leftValue,})
} else {
console.log('拖右超右边')
this.setData({
leftShowValue: e.detail.value,})
this.setData({
rightShowValue: this.data.leftValue,})
}
}const v = this.data.sliderWidth / this.data.Max if (v * (this.data.rightShowValue - this.data.leftShowValue) - this.data.blockSize >= 0) { this.setData({ setSliderLeftX: (v * this.data.leftShowValue) + this.data.blockSize / 2 + 'px',setSliderWidthX: v * (this.data.rightShowValue - this.data.leftShowValue) - this.data.blockSize + 'px',}) // console.log(1) } else { this.setData({ setSliderLeftX: (v * this.data.leftShowValue) + this.data.blockSize / 2 + 'px',setSliderWidthX: 0 + 'px',}) }
}