How to download other apps in the uniapp project

With the rapid development of mobile Internet, more and more APPs are emerging, and users need to download and install these APPs to obtain better services and experience. In response to this demand, some APPs may provide the function of downloading other APPs within their own applications. This article will introduce how to download other APPs in the uniapp project.

1. Ideas

The process of downloading other APPs in the uniapp project can be divided into the following steps:

1. Obtain QQ browser, 360 browser, etc. The download link of the app store;
2. Call the system browser according to the download link to open the app store page;
3. The user manually downloads and installs.

2. Obtain the download link

To obtain the download link, you can use the API of major application stores or the download address in the web search results.

1. App Store API

Many app stores provide APIs to obtain application information, including application download links. Taking Huawei App Market as an example, you can obtain the download link of a specified application through the following API:

https://api.vmall.com/rest.php
?r=api/storeapi
&ac=bd_appinfo_query
&packageName=com.tencent.mtt
&reqClientType=3&ch=0000000&locale=zh_CN&version=2.0

The parameters that need to be passed in to this API include packageName (application package name), reqClientType (client type) and so on. Among them, the client type 3 represents the Android mobile client. The application download link obtained through this API is:

https://appdlc-drcn.hispace.hicloud.com/dl/appdl/application/appdl/application/202008/01/1500000010964947_com.tencent.mtt_10.9.5_ad06d0c5-0163-4a7d-af02-77e39e837ccf.apk?sign=portal%2Fportal

2. Web search results

In addition to the API, you can also search for the application name plus the word download and other related keys in the browser Word, get the download link from the search results. Taking QQ browser as an example, after entering "qq browser download" in the search engine, we can get the following download link from the search results:

https://msite.qq.com/browser/download.shtml

3. Open the app store page

After obtaining the download link, we need to pass the link to the system browser to open the download page of the app store. uniapp provides an API for calling the system browser. The code example is as follows:

uni.navigateTo({
  url: '/pages/browser/browser?url=' + encodeURIComponent(downloadUrl)
})

In this code snippet, navigateTo is the page jump API of uniapp, and the following url encodeURIComponent(downloadUrl)The download link is passed as a parameter to the target page to jump to. In the target page, we can open the browser and access the link through the following code:

<template>
  <view></view>
</template>

<script>
export default {
  onReady() {
    const downloadUrl = decodeURIComponent(this.$route.query.url)
    window.location.href = downloadUrl
  }
}
</script>

In the onReady life cycle function of the target page, we obtain the download link passed in before And pass it to the browser as the new window address to open the app store page.

4. Users manually download and install

Through the previous steps, we have completed the process of bringing users to the app store page. The next step for the user is to find and download the required application in the app store.

It should be noted that in uniapp we cannot control whether the user successfully downloads the target application, so we need to add judgment on whether the application has been downloaded in subsequent development so that we can do targeted Provide corresponding prompts or guide operations to further improve user experience.

5. Summary

The above is how to download other APPs in uniapp. By obtaining the download link, calling the system browser to open the app store page, and the user manually downloading and installing, we can easily implement this function in the uniapp project.

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