How to disable page scrolling in uniapp

Uniapp is a very practical cross-platform development framework that allows developers to use one code to run on multiple platforms (such as Android, iOS, etc.). However, sometimes we need to disable page scrolling in Uniapp to ensure the consistency and smoothness of the user experience, so what should we do?

First of all, we need to understand that the scrolling of the page in Uniapp is controlled by two elements, namely the page itself and the page container.

The page container is an element similar to a div in HTML. It contains the content of the entire page and can be scrolled. The page itself refers to the actual page elements, such as text, pictures, etc.

To disable page scrolling, we need to control one or both of these two elements. The specific implementation method is as follows:

1. Control the page container

To prohibit the scrolling of the page container, you can use the overflow attribute of CSS and set it to hidden.

Sample code:

.container{
  overflow: hidden;
}

At the same time, we also need to get the container element in the mounted or onReady life cycle function, and then set its scrollTop attribute to 0 to ensure that the page is loaded when top.

Sample code:

mounted(){
  const container = document.querySelector('.container');
  container.scrollTop = 0;
}

The advantage of this method is that it is simple and easy to understand, and it does not have any impact on the page itself. But if the page is very long and contains a lot of elements, it may affect the page's loading speed.

2. Control the page itself

To prohibit scrolling of the page itself, you can use the position attribute of CSS, set it to fixed, and set its left, top, right, and bottom attributes Both are set to 0, allowing it to cover the entire page.

Sample code:

.page{
  position: fixed;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
}

Compared with the first method, this method has less impact on the loading speed of the page, but it should be noted that if the page contains fixed positioning Elements, such as pop-ups, tabs, etc., may cause these elements to fail.

In addition, we can also use some plug-ins to prohibit page scrolling, such as better-scroll, etc., but the underlying implementation principles of these plug-ins are similar to the above methods.

Summary

Disabling Uniapp page scrolling is a simple but important issue, especially in some situations where the page needs to be fixed, such as pop-up windows, pull-down refresh, etc. We can achieve this function by controlling the page container or the page itself, and we can also use some plug-ins to improve development efficiency. No matter which method is used, you need to pay attention to issues such as page loading speed and the processing of fixed positioning elements to ensure the consistency and smoothness of the user experience.

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