Synchronizing the calendar and contacts with NextCloud on Android is fairly straight-forward. It will require both the Android NextCloud client and an app called DavX5.
Once set up, the synchronization of the calendar (and optionally contacts) will be automatic and will not require any further calibration by the user. Any changes made from the client or the server will be synchronized automatically.
Instructions
Installing the Required Apps
Install and sign into the NextCloud Client
Navigate to the Google Play Store and search for the Nextcloud Android client. Once installed, the app will prompt the user for access to their NextCloud account. Sign-in with your NextCloud credentials and grant access to the Android app.
Once installed, run the application and enter the server address:
https://cloud.grey.fail
.
The user will then be directed to the default browser where login credentials can be entered and the Client can be granted access to the user's account:
Congrats! We've connected our Android client to our NextCloud account. Now that the account is connected to the NextCloud server, we're ready to install DavX5.