How to jump to tab page in uniapp

With the rapid development of mobile Internet, more and more developers are beginning to pay attention to the development of cross-platform applications. As one of the most popular cross-platform development frameworks, UNIApp has received more and more attention. In the process of developing applications using UNIApp, we will encounter many problems, such as how to jump to the tab page. This article will introduce how to use UNIApp to jump to tab pages.

1. Basic concepts of tab pages

In UNIApp, we can display tab pages through tabBar. tabBar is a bottom fixed bar, usually used to display the main functions of the application. tabBar usually consists of several tabs, each tab can correspond to different pages. Users can switch to the corresponding page by clicking on different tabs. Therefore, when jumping to the tab page, we need to operate the tabBar to achieve it.

2. Use tabBar to jump to the tab page

In UNIApp, it is very simple to use tabBar to jump to the tab page. We only need to set the tabBar in the pages.json file. The following is a sample code:

"tabBar": {
    "list": [
        {
            "pagePath": "pages/home/home",
            "text": "首页",
            "iconPath": "static/img/tabbar/tab_home_nor.png",
            "selectedIconPath": "static/img/tabbar/tab_home_act.png"
        },
        {
            "pagePath": "pages/category/category",
            "text": "分类",
            "iconPath": "static/img/tabbar/tab_category_nor.png",
            "selectedIconPath": "static/img/tabbar/tab_category_act.png"
        },
        {
            "pagePath": "pages/cart/cart",
            "text": "购物车",
            "iconPath": "static/img/tabbar/tab_cart_nor.png",
            "selectedIconPath": "static/img/tabbar/tab_cart_act.png"
        },
        {
            "pagePath": "pages/personal/personal",
            "text": "个人中心",
            "iconPath": "static/img/tabbar/tab_personal_nor.png",
            "selectedIconPath": "static/img/tabbar/tab_personal_act.png"
        }
    ]
}

In the above code, we define four tabs, and the corresponding pages are home, category, cart and personal. Each item in the list array represents a tab, including page path pagePath, display text text, default display icon iconPath and selected display icon selectedIconPath. When the user clicks a tab, the system will jump to the corresponding page based on the path specified by pagePath.

3. Jumping to tab pages through API

In addition to setting tabBar in the pages.json file, we can also jump to tab pages through API. The following is a sample code:

uni.switchTab({
    url: '/pages/home/home'
});

In the above code, we use the uni.switchTab method to jump to the tab page. This method accepts a url parameter, indicating the path of the page to be redirected. When the user clicks on the tab, the system will jump to the corresponding page based on the path specified by the url parameter.

In addition to the uni.switchTab method, UNIApp also provides some other APIs to implement tab page jumps, such as uni.reLaunch, uni.redirectTo, etc. For specific usage, please refer to the official documentation.

Summary

The above is the method of using UNIApp to realize tab page jump. When developing applications, we can choose the appropriate method to jump according to our own needs. Whether you set the tabBar attribute in the pages.json file or implement the jump through the API, you can achieve the desired effect. During the development process, we should learn more, constantly explore new technologies and methods, and improve our development level.

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