How to create a simple login interface for Android?

To create a basic Android login interface, you can follow these steps:

1. Create a new Android project.
2. Add a LinearLayout as the root layout in the activity_main.xml file.
3. Add two EditText controls in a LinearLayout, one for entering the username and the other for entering the password.
4. Add a Button control as the login button.
5. Find the Button widget in MainActivity.java and set a click event listener for it.
6. In the onClick event listener, retrieve the username and password from the EditText and validate them.
7. If the verification is successful, you can redirect to a new Activity or display a Toast message in the click event listener.

This is a simple implementation that you can customize and extend according to your needs. It is important to note that this implementation is just a basic example, so if you plan to use it in a real project, be sure to add more input validation and security measures.