First, open the option of creating a new mobile APP in hbuilder, select an empty template, then select the file to be packaged, then click on the published native installation package, select Android, and use Google developer certificate to package.
In fact, if you want to package a web page into an apk, there is an easier way to package it into an Android APP in one minute with only one URL.
Encapsulation will not change the content in your web page, what your web page looks like and what it looks like after encapsulation.
Mobile phone search micro-diversion, click "package"
Click on the package and enter the name and website of the APP.
There are dozens of free plugins to choose from. If you don't need them, just click Next.
Submit the order and the package will be completed.
The packaged APP can directly download the installation package.