微信小程序自定义支持图片的弹窗

<!--index.wxml-->

<button class="show-btn" bindtap="showDialogBtn">弹窗</button>

<!--弹窗-->

<cover-view class="modal-mask" bindtap="hideModal" wx:if="{{modal.isShow}}"></cover-view>
<cover-view class="modal-dialog" wx:if="{{modal.isShow}}" >
 <cover-view class="modal-title">{{modal.title}}</cover-view>
 <cover-view class="modal-content">
 <cover-image src="{{modal.src}}" class="img-full" style="height:auto;" mode="widthFix"></cover-image>
 </cover-view>
 <cover-view class="modal-footer" wx-if="{{modal.isFooter}}">
 <cover-view class="btn-cancel" bindtap="onCancel" data-status="cancel">{{modal.cancel}}</cover-view>
 <cover-viewew class="btn-confirm" bindtap="onConfirm" data-status="confirm">{{modal.ok}}</cover-viewew>
 </cover-view>
</cover-view>

.show-btn {
 margin-top: 100rpx;
 color: #22cc22;
}
.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: 50%;
 left: 0;
 z-index: 9999;
 background: #f9f9f9;
 margin: -180rpx 105rpx;
 border-radius: 36rpx;
}
.modal-title {
 padding-top: 50rpx;
 font-size: 36rpx;
 color: #030303;
 text-align: center;
}
.modal-content {
 padding: 50rpx 32rpx;
}
.modal-input {
 display: flex;
 background: #fff;
 border: 2rpx solid #ddd;
 border-radius: 4rpx;
 font-size: 28rpx;
}
.input {
 width: 100%;
 height: 82rpx;
 font-size: 28rpx;
 line-height: 28rpx;
 padding: 0 20rpx;
 box-sizing: border-box;
 color: #333;
}
input-holder {
 color: #666;
 font-size: 28rpx;
}
.modal-footer {
 display: flex;
 flex-direction: row;
 height: 86rpx;
 border-top: 1px solid #dedede;
 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;
}

//index.js
//获取应用实例
var app = getApp()
Page({
 data: {
 showModal: false,
 },
 onLoad: function () {
 },
 /**
 * 弹窗
 */

 showDialogBtn: function () {
 this.setData({
 showModal: true

 })

 },

 /**
 * 弹出框蒙层截断touchmove事件
 */

 preventTouchMove: function () {
 },

 /**
 * 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();

 }

})

preventTouchMove: function () { }

catchtouchmove="preventTouchMove"。