Comprehensive Android Developer Bootcamp - Setting Up Journal - Part 3

The video tutorial covers setting up buttons and click listeners in an Android app, implementing switch statements for handling button actions, and integrating user data using a Journal API. It also explains setting up a Firebase authentication listener and creating intents to handle images from the device gallery. The tutorial demonstrates how to fetch images using implicit intents and addresses issues like continuous progress bars and image display problems.

Discuss the importance of removing the auth listener when the activity stops.

How does the application ensure that the data received from the intent is not null?

What happens if the user tries to log in with an account that has not been created yet?

What are the potential issues mentioned regarding the progress bar and image display?