Let's talk about how to open the browser and jump to the URL in UniApp

In the field of mobile application development, it is often necessary to open an external browser in the application and jump to the specified URL. Developers who use UniApp to develop often need to deal with similar needs. In this article, we will introduce to you how to open the browser and jump to the URL in UniApp.

1. Use the native plug-in to jump to the URL

In UniApp, we can use the native plug-in to realize the function of opening the browser and jumping to the URL. Many commonly used native plug-ins are built into the UniApp framework, such as making calls, sending text messages, obtaining geographical location, etc. Among these plug-ins, there are also plug-ins for opening browsers.

We can use the plug-in that opens the browser by calling the uni.navigateTo({ url: 'plugin://NativePlugin/webview?url=http://www.uniapp.com' }) method. Among them, the url parameter indicates the URL address that needs to be jumped. For example, if we want to jump to the homepage of the UniApp official website (http://www.uniapp.com), we can use the following code:

uni.navigateTo({ url: 'plugin://NativePlugin /webview?url=http://www.uniapp.com' })

After calling this method, you can open an external browser in the application and jump to the specified URL address.

2. Use H5 pages to open URLs

In addition to using native plug-ins, we can also use H5 pages to open URLs in UniApp. The method of using an H5 page to open a URL is similar to the native plug-in. You only need to call the uni.navigateTo({ url: '/pages/webview/webview?url=http://www.uniapp.com' }) method to achieve it. .

It should be noted that we need to create a new webview page in the pages directory of the project, and use tag to open the URL.

In the webview page, we need to obtain the URL address that needs to be opened by passing parameters. For example, define a url variable in data and obtain the URL address passed by the parameter through the onLoad function:

export default {
data () {

return {
  url: ''
}

},
onLoad (options) {

this.url = options.url

}
}

where options are Parameters obtained by passing parameters.

3. Use external links

In addition to the above two methods, we can also use external links to open URLs. This method is similar to using an H5 page to open a URL. You only need to use a tags in the application to link the URL addresses.

It should be noted that when the application opens a URL through the a tag when it is running, relevant configurations need to be added to the application's manifest.json file to prevent the application from being intercepted or disabled by the system.

The following is a code example added to the manifest.json file:

{
"app": {

"name": "UniApp",
"versionName": "1.0.0",
"versionCode": 1,
"description": "This is a demo application",
"minSdkVersion": "1050",
"custom": {
  "app-plus": {
    "launchWebviewPlus": {
      "url": {
        "patterns": [
          "http://www.uniapp.com",
          "https://www.uniapp.com"
        ],
        "schemes": [
          "http",
          "https"
        ]
      }
    }
  }
}

}
}

In the Manifest configuration item, we need to add the URL address that needs to be opened to the patterns array, add the URL protocol to the schemes array, and add the configuration item to the launchWebviewPlus attribute under app-plus in custom.

4. Summary

Through the above three methods, we can realize the function of opening the browser and jumping to the URL in the UniApp application. First, we can use native plug-ins to implement it, and secondly, we can implement it through H5 pages. Finally, we can also use external links to achieve this.

It should be noted that when using the above methods, you need to choose according to actual needs to achieve the best effect. At the same time, we also need to follow relevant specifications to prevent applications from being intercepted or disabled by the system to ensure that applications can run normally.

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