A look into SharePoint Mobile app from Android
You have SharePoint sites and you want to access it through your mobile phone, did you consider using Microsoft App that is available on Android and Apple too.
Let us download the app and run it from Android phone
When you open the app you will be asked to sign in using account or provide URL

Then enter password

First tab is New from sites you are following, you can access any one of the news to go to the new in the site.

You can share, save for later or look for details.

Second tab is Find where you can search documents, files and people


third tab is Me, where you see Recent files and saved one and you can access your settings



When you open the app you will be asked to sign in using account or provide URL