微信小程序自定义弹出模态框禁止底部滚动
图示：
wxml代码：
<view class='fix_bottom'>
<view>分享view>
<view>电话咨询view>
<view class='active' bindtap="showDialogBtn">立即报名view>
view>
<view class="modal-mask" bindtap="hideModal" catchtouchmove="preventTouchMove" wx:if="{{showModal}}">view>
<view class="modal-dialog" wx:if="{{showModal}}">
<view class="modal-title">选择班次view>
<view class="modal-content">
<view class="concent_list {{curindex==index? 'active':''}}" wx:for="{{concent_list}}" wx:for-index='index' data-index='{{index}}' bindtap='choose' data-name='{{item}}'>{{item}}view>
view>
<view class="modal-footer">
<view class="btn-cancel" bindtap="onCancel" data-status="cancel">取消view>
<view class="btn-confirm" bindtap="onConfirm" data-status="confirm">确定view>
view>
view>
wxss代码
.fix_bottom{
width: 100%;
height: 120rpx;
background: #fff;
position: fixed;
bottom: 0;
border-top: 1px solid #ccc;
display: flex;
}
.fix_bottom view{
width: 33.333%;
border-left: 1px solid #ccc;
line-height: 120rpx;
text-align: center;
font-size: 40rpx;
font-weight: bold;
}
.active{
color:#ffffff;
background: -moz-linear-gradient(left, #ff7b68, #ff5462);
/* Safari 4-5, Chrome 1-9 */
/* -webkit-gradient(, [, ]?, [, ]? [, ]*) */
background: -webkit-gradient(linear,left,from(#ff7b68),to(#ff5462));
/* Safari 5.1+, Chrome 10+ */
background: -webkit-linear-gradient(left, #ff7b68, #ff5462);
/* Opera 11.10+ */
background: -o-linear-gradient(left, #ff7b68, #ff5462);
}
/* 模态框 */
.modal-mask {
width: 100%;
height: 100%;
position: fixed;
top: 0;
left: 0;
background: #000;
opacity: 0.5;
overflow: hidden;
z-index: 9000;
color: #fff;
}
.modal-dialog {
width: 540rpx;
overflow: hidden;
position: fixed;
top: 40%;
left: 0;
z-index: 9999;
background: #f9f9f9;
margin: -180rpx 105rpx;
border-radius: 36rpx;
}
.modal-title {
height: 100rpx;
line-height: 100rpx;
font-size: 36rpx;
color: #fff;
text-align: center;
background: -moz-linear-gradient(left, #ff7b68, #ff5462);
/* Safari 4-5, Chrome 1-9 */
/* -webkit-gradient(, [, ]?, [, ]? [, ]*) */
background: -webkit-gradient(linear,left,from(#ff7b68),to(#ff5462));
/* Safari 5.1+, Chrome 10+ */
background: -webkit-linear-gradient(left, #ff7b68, #ff5462);
/* Opera 11.10+ */
background: -o-linear-gradient(left, #ff7b68, #ff5462);
border-bottom: 1px solid #ccc;
}
.modal-content {
}
.concent_list{
width: 100%;
height: 100rpx;
border-bottom: 1px solid #ccc;
line-height: 100rpx;
text-align: center;
}
.modal-footer {
display: flex;
flex-direction: row;
height: 86rpx;
font-size: 34rpx;
line-height: 86rpx;
}
.btn-cancel {
width: 50%;
color: #666;
text-align: center;
border-right: 1px solid #dedede;
}
.btn-confirm {
width: 50%;
color: #ec5300;
text-align: center;
}
js代码
var value='小学升初中'
Page({
/**
* 页面的初始数据
*/
data: {
showModal: false,
concent_list:['小学升初中','初一升初二','初二升初三','初中升高中'],
curindex:-1
},
/**
* 生命周期函数--监听页面加载
*/
onLoad: function (options) {
},
/**
* 生命周期函数--监听页面显示
*/
onShow: function () {
},
/**
* 弹窗
*/
showDialogBtn: function () {
this.setData({
showModal: true
})
},
/**
* 隐藏模态对话框
*/
hideModal: function () {
this.setData({
showModal: false
});
},
/**
* 对话框取消按钮点击事件
*/
onCancel: function () {
this.hideModal();
},
/**
* 对话框确认按钮点击事件
*/
onConfirm: function () {
this.hideModal();
})
},
choose:function(e){
var index=e.currentTarget.dataset.index
value = e.currentTarget.dataset.name
console.log(value)
this.setData({
curindex:index
})
}
})
模态框显示时禁止底部内容滚动可以在弹出时给底部包裹部分加上固定定位，模态框隐藏时取消固定定位
内容包裹的元素需要设置100%的宽度
<
view
class
=
'diceng_wrap'
style
=
'position: {{position}}'>
底部所有内容内容内容
view
>
data数据的变化：
初始化时：
position:
'auto',
模态框显示时：
position: 'fixed',
模态框隐藏时：
position: 'auto',
模态框显示时