Storing Authentication Tokens on Device

Now that we have our Navigation bar, we should consider our user experience. Currently, each time users launch the app, they have to log in. This is not a good user experience. We should store the token on the device so that users don't have to log in each time they launch the app.

Installing Package

First, we need a secure way to store the information. While we could use a simple filesystem, there is a package that makes it easier for us. We'll use the flutter_secure_storage package.

flutter pub add flutter_secure_storage

Once the package is installed, we can store the token...