Home Web Front-end uni-app uniapp implements pull-up and release to switch pages

uniapp implements pull-up and release to switch pages

May 26, 2023 am 10:40 AM

1. Foreword

With the popularity of mobile devices, people’s demand for mobile applications is also getting higher and higher. A good mobile application needs to be able to meet the needs of users and have a good user experience. Among them, page switching is the most common and important interaction method in mobile applications. In this article, we will introduce how to use uniapp to achieve the effect of pulling up and releasing to switch pages to improve the user experience during use.

2. To achieve the effect

The effect we want to achieve is: when the user pulls up and releases the screen on the current page, the page can switch upward to the previous page.

3. Prerequisite knowledge

Before reading this article, you need to know some basic knowledge of uniapp. If you have not used uniapp to develop small programs or H5 pages before, it is recommended that you learn the basic knowledge of uniapp first, and I will not go into details here.

4. Implementation steps

  1. Create uniapp project

We first create a uniapp project and name it "pull-page". After creation, create two pages under the pages folder, named "page1" and "page2" respectively.

  1. Add page content

In the "page1" and "page2" pages, we can add any content to demonstrate the effect of pulling up and releasing to switch pages.

  1. Add events to the page

We need to add a "pull-down to refresh" event to the page, and handle the effect of triggering the pull-up release to switch pages in the event.

The following is the code to add the pull-down refresh event in the "page1" page:

<template>
  <view>
    <view class="content">
      <text>这是Page1页面</text>
    </view>
  </view>
</template>

<script>
  export default {
    onPullDownRefresh() {
      uni.navigateTo({
        url: "/pages/page2/page2",
      });
    },
  };
</script>

<style>
  .content {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
  }
</style>
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In the above code, we use uni.navigateT

## in the "onPullDownRefresh" function #o method to achieve page jump. Here we jump to the "page2" page. In the "page2" page, you also need to add a pull-down refresh event to return to the "page1" page. The code is as follows:

<template>
  <view>
    <view class="content">
      <text>这是Page2页面</text>
    </view>
  </view>
</template>

<script>
  export default {
    onPullDownRefresh() {
      uni.navigateBack({
        delta: 1,
      });
    },
  };
</script>

<style>
  .content {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
  }
</style>
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In the "onPullDownRefresh" function, we use the uni.navigateBack method to return the page .

    Set the page style
Finally, we need to set the page style so that the page is displayed in the center.

<style>
  .content {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
  }
</style>
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In this way, a simple pull-up and release effect of switching pages is completed. Through the above steps, we can easily achieve this interactive effect in uniapp and improve the user experience.

5. Summary

In this article, we demonstrate through code how to use uniapp to achieve the effect of pulling up and releasing to switch pages. This interaction can be easily achieved in just a few steps. Effect. Of course, the functions of uniapp are far more than this. If you want to know more, please refer to the official uniapp documentation.

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