[WeChat applet] Example of custom modal box

Original link: https://mp.weixin.qq.com/s/23wPVFUGY-lsTiQBtUdhXA

1

Overview

Since the display modal pop-up window provided by the official API can only simply display the text content, and cannot customize the content of the dialog box, it lacks flexibility, so I implemented a custom modal from the perspective of the principle of the modal pop-up window. dialog. Today we share such a small tutorial. I hope to be helpful.

Not much to say, the second master is going to upload the picture!

Go get a small bench and wait for moremultiple updates

Note: If necessary, please contact WeChat geekxz

2

wxml

<button class="show-btn" bindtap="showDialogBtn">弹窗</button>
<!--弹窗-->
<view class="modal-mask" bindtap="hideModal" catchtouchmove="preventTouchMove" wx:if="{{showModal}}"></view>
<view class="modal-dialog" wx:if="{{showModal}}">
  <view class="modal-title">添加数量</view>
  <view class="modal-content">
    <view class="modal-input">
      <input placeholder-class="input-holder" type="number" maxlength="10" bindinput="inputChange" class="input" placeholder="请输入数量"></input>
    </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>

3

  js

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();
    }
})

4    css

.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;
}

The effect of the above code

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