How to set tabbar height in uniapp

With the rapid development of mobile Internet, more and more applications have been developed. And one of the most common elements of mobile applications is the TabBar. TabBar is a bottom navigation bar that can be used to switch between different pages or functions. Uniapp is a cross-platform application development framework that allows developers to write code once and run it on multiple platforms. This article will introduce how to set the height of TabBar in Uniapp.

First, we need to set the position and height of tabBar in App.vue. In the template, this can be achieved by setting the style of a div element:

<template>
  <div>
    <nav>
      <!-- 设置其他导航元素 -->
    </nav>
    <div class="uni-tabbar-wrapper">
      <tabbar>
        <!-- 设置 TabBar 元素 -->
      </tabbar>
    </div>
  </div>
</template>

<style>
.uni-tabbar-wrapper{
  position: fixed;
  bottom: 0;
  height: 100px; /* 这里设置 TabBar 的高度 */
  background-color: #fff;
  width: 100%;
  box-shadow: 0 -1px 8px rgba(0,0,0,.1);
}
</style>

In the above code, we include the TabBar in a div element and set the height of the TabBar by setting the style of the containing element. is 100px. Again, we set the element's position to fixed and its distance from the bottom to 0.

Next, we need to set the style of each page in pages so that the TabBar does not block the page content. In the page style sheet, we need to set the bottom margin value to the height of the tabBar so that the page content will be displayed above the TabBar.

<template>
  <!-- 页面内容 -->
</template>

<style>
/* 这里设置 TabBar 上方的边距 */
page {
  margin-bottom: 100px;
}
</style>

Finally, we can add icons or text to the TabBar. In the subcomponent of TabBar, we need to set an icon and a text property. The icon property is used to set the icon displayed in the TabBar, while the text property is used to set the text displayed below the icon. Here is an example:

<tabbar>
  <tabbar-item icon="home" text="主页"></tabbar-item>
  <tabbar-item icon="message" text="消息"></tabbar-item>
  <tabbar-item icon="me" text="我的"></tabbar-item>
</tabbar>

In the above code, we create three tabbar-item elements and set their icon and text attributes respectively.

Through the above steps, we can set the height of the TabBar in Uniapp and add content to it. It should be noted that the operating systems and screen resolutions of different platforms may affect the height and display effect of the TabBar, which requires debugging and adaptation.

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