微信小程序弹框之cover-view
1: 最近商户端小程序有个需求涉及到textarea,在textarea上方会有个弹框的交互效果,因为textarea是原生组件,层级比较高,一般的设置view的z-index是没有效果的,会造成如下的情况 (会导致点击textarea的时候,依旧可以点击):
2: 如果想在页面上,设置更高层级的视图且保证不被textarea覆盖,那么就需要使用cover-view了。由于项目需求是点击提价预约按钮,显示弹窗提示,预期效果如下:
3: cover-view简述
cover-view 在小程序中是比较特殊的组件,与 view 的最大区别在于,它能覆盖在原生组件 map、video、canvas、camera、textarea 之上,且只能嵌套 cover-view 和 cover-image, 如果项目有这张需求,cover-view是一种行之有效的解决方法.
4: 针对上面的描述, 具体的代码如下
(1) wxml代码如下
<textarea name="{{item.name}}" class="textarea_02" bindblur="onRemarkInput" bindinput="textAreaChange" value="{{user_note}}" placeholder-class="fs28 lh20" style="margin-top: {{systemPlatform =='iOS' ? '-12rpx':'0'}}" placeholder="输入您想说的话">
<template is="paybulletCoverView" data="{{orders: orders, isShow:isShow}}"></template>
</textarea>
<template name="paybulletCoverView">
<cover-view class="pop-up-textarea-bg" wx:if="{{isShow}}">
<cover-view class="pop-up-textarea-container">
<cover-view class="top-view">
<cover-view class="title">支付</cover-view>
<cover-image bindtap="onCancelOrderPay" class="cancel" src="https://yunshang.365jia.cn/assets/images/weixin_product_ico/ico_grep_delete.png"></cover-image>
</cover-view>
<cover-view class="top-line-view"></cover-view>
<cover-view class="pay-money-title">储值卡支付金额</cover-view>
<cover-view class="pay-money-view">
<cover-view class="symbol">¥</cover-view>
<cover-view class="price">{{orders.total_price}}</cover-view>
</cover-view>
<cover-view class="line-view"></cover-view>
<cover-view class="pet-card-view">
<cover-image class="icon" src="{{orders.logo}}"></cover-image>
<cover-view class="title">储值卡</cover-view>
</cover-view>
<cover-view class="line-view"></cover-view>
<cover-view bindtap="onSubmitOrder" class="bottom-make-sure-button"> 确认支付</cover-view>
</cover-view>
</cover-view>
</template>
(2) wxss代码如下:
.pop-up-textarea-bg {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: rgba(0, 0, 0, 0.5);
z-index: 9999;
align-items: center;
justify-content: center;
}
.pop-up-textarea-container {
position: fixed;
top: 300rpx;
left: 85rpx;
width: 580rpx;
height: 560rpx;
background-color: #fff;
border-radius: 8rpx;
color: #666;
font-size: 28rpx;
}
.top-view {
height: 98rpx;
width: 100%;
display: flex;
position: relative;
align-items: center;
justify-content: center;
background-color: #fff;
}
.top-view .title {
height: 98rpx;
line-height: 98rpx;
width: 100%;
font-size: 36rpx;
text-align: center;
}
.top-view .cancel {
position: absolute;
width: 60rpx;
height: 60rpx;
right: 20rpx;
top:50%;
transform: translateY(-50%);
}
.line-view, .top-line-view {
width: 100%;
height: 2rpx;
background-color: #eeeeee
}
.top-line-view {
background-color: #39cc6a
}
.pay-money-title {
width: 100%;
height: 98rpx;
line-height: 98rpx;
color: #333333;
font-size: 32;
text-align: center;
}
.pay-money-view {
height: 60rpx;
margin: 36rpx 30rpx 20rpx;
justify-content: center;
display: flex;
}
.pay-money-view .symbol {
width: 33%;
height: 40rpx;
line-height: 40rpx;
margin-top: 20rpx;
font-size: 30rpx;
text-align: right;
}
.pay-money-view .price {
width: 67%;
height: 60rpx;
line-height: 60rpx;
margin-left: 10rpx;
color: #000;
font-size: 60rpx;
text-align: left;
}
.pet-card-view {
height: 86rpx;
margin-left: 30rpx;
margin-right: 30rpx;
align-items: center;
display: flex;
}
.pet-card-view .icon{
width:46rpx;
height:46rpx;
border-radius:23rpx
}
.pet-card-view .title{
width: 200rpx;
height: 46rpx;
line-height: 46rpx;
margin: 20rpx;
color: #6E726E;
text-align: left;
}
.bottom-make-sure-button {
height: 92rpx;
line-height: 92rpx;
margin: 40rpx 30rpx 20rpx;
background-color: #06C160;
border-radius: 8rpx;
color: #fff;
justify-content: center;
align-items: center;
text-align: center;
}