Implement the modal box pop-up effect in WeChat applet

To implement the modal box pop-up effect in WeChat mini-programs, specific code examples are required

In today’s mobile Internet era, WeChat mini-programs have become an indispensable part of people’s lives. A missing part. In the development process of WeChat applet, we often encounter the need to pop up a modal box. Modal boxes can be used to display some prompt information, confirmation dialog boxes, etc., to give users a better interactive experience.

In this article, I will introduce in detail how to implement the pop-up effect of the modal box in the WeChat applet, and give corresponding code examples.

First, define a modal box component in the wxml file of the applet. The following is a simple example:

<view class="modal" hidden="{{!modalVisible}}">
  <view class="modal-inner">
    <view class="modal-content">
      {{modalContent}}
    </view>
    <view class="modal-footer">
      <button class="btn btn-cancel" bindtap="cancelModal">取消</button>
      <button class="btn btn-confirm" bindtap="confirmModal">确认</button>
    </view>
  </view>
</view>

In the above code, we use a <view> component as the container of the modal box. hidden The attribute is used to control the display and hiding of the modal box, judged by a Boolean value. {{modalContent}} is a dynamically bound variable used to display the content of the modal box. <button> The component is two buttons, used to cancel and confirm the modal box respectively.

Next, in the corresponding js file, we need to define some properties and methods to control the display and hiding of the modal box. The following is an example:

Page({
  data: {
    modalVisible: false,
    modalContent: ""
  },
  showModal(content) {
    this.setData({
      modalVisible: true,
      modalContent: content
    });
  },
  hideModal() {
    this.setData({
      modalVisible: false
    });
  },
  cancelModal() {
    this.hideModal();
  },
  confirmModal() {
    // do something
    this.hideModal();
  }
});

In the above code, we define two variables modalVisible and modalContent through the data attribute, Used to control the display of the modal box and store the content of the modal box. showModal The method is used to display the modal box and pass in the content to be displayed. hideModal method is used to hide the modal box. The cancelModal and confirmModal methods are used to handle the events of canceling and confirming the modal box respectively. The specific logic can be implemented according to the requirements.

Finally, we need to bind the corresponding method to the event that triggers the modal box. Here is an example:

<button bindtap="showModal">点击展示模态框</button>

In the above code, we bind a showModal method to a button to display the modal box.

The above are the detailed steps and code examples to implement the modal box pop-up effect in the WeChat applet. Through the above method, we can easily implement various types of modal boxes in mini programs and interact with users.

Hope this article can be helpful to everyone!

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