ExamLock

Secure exams, live classroom workflows, and real-time proctor intervention.

DEMO

ExamLock is more than a lock screen for tests. It is a full classroom and assessment platform with:

• A Flutter mobile app for both students and teachers
• Role-based home layouts (RBAC) for student and teacher workflows
• A web dashboard used mainly for larger-screen convenience and expanded operations
• Shared real-time data and notifications through Firebase

What ExamLock Covers

• Classroom management (create/join/archive classes)
• Post workflows (announcements, files, and activities)
• Exam creation (timer, question sheet, security settings)
• Live proctor monitoring with lock/unlock controls
• Submission review, auto-checking, manual essay scoring, and grade exports

Mobile App Features (RBAC: Student + Teacher)

• Role-aware authentication (email/password + Google Sign-In)
• Role-based routing and home layouts (student and teacher)

Student Side (Mobile)

• Join classes using class code
• View class stream with announcements, files, and activities
• Take exams with countdown timer and continuous answer auto-save
• Exam pass (exampass) before start (if required)
• Lock passcode re-entry if exam is locked
• Anti-screenshot support
• Anti-copy/paste restrictions
• Immersive mode + background detection during active exam
• Real-time exam status sync (Good, Warning, Locked, Ended)
• View graded results and score details
• Notifications and unseen grade indicators
• Archive handling for joined classes

Teacher Side (Mobile)

• Dedicated teacher home layout with sections such as Classes, Activities, Notes, Students, Sheet, and Archive
• Create and manage classes
• Publish announcements, files, and activities
• Configure exam security (antiScreenshot, antiCopyPaste, examLock, randomize, passcode, exampass)
• Build or attach test sheets and answer keys
• Monitor students during active exams (test room flow)
• Review submissions and grading flows
• Manage students, class archive, and teacher notes

Web Dashboard (Teacher/Proctor) Features

• Web is primarily the teacher convenience layer for bigger screens and faster class operations
• Teacher-only web login and role validation
• Class management: create classes, share class code, manage enrollment, archive/unarchive/delete
• Post management: announcements, file/link posts, and activity posts
• Activity types: exam, quiz, test, assignment, homework, prelim, midterm, semi-finals, finals
• Activity security setup: countdown, anti-screenshot, anti-copy/paste, randomize, exam lock, passcode, exampass
• Saved sheet attachment and reusable test sheet management
• Real-time Test Room with status cards, lock/unlock, and lock all/unlock all
• Turn-in review with objective auto-check and manual essay scoring
• Class record controls: category percentage weights + Excel export
• Personal teacher notes and profile/password management

Tech Stack

Platform Architecture

ExamLock runs as a dual-client system:

• Mobile client (lib/): student and teacher experiences under RBAC
• Web client (web/): teacher-focused convenience interface for larger displays and extended workflows

Both clients read/write shared Firebase nodes for classes, posts, testroom status, submissions, and scores.

How to Use (Student Mobile)

1. Sign up/login and select Student role.
2. Join a class using the class code provided by your teacher.
3. Open the activity/exam from your class feed.
4. Enter exam pass if required, then start the exam.
5. Answer questions while timer and progress auto-save run in real time.
6. If locked, enter the required passcode to continue.
7. Submit before timeout and review grades/results when released.

How to Use (Teacher: Mobile or Web)

1. Login using a Teacher account (mobile app or web portal).
2. Create/open a class, then share class code with students.
3. Create posts:
4. Announcement for updates
5. File/link for materials
6. Activity for exams/quizzes/tests/assignments
7. For activities, set security/timer options and attach or create a test sheet.
8. Open Test Room during live exams to monitor students and lock/unlock as needed (mobile or web).
9. Review turn-ins, score essays, and publish/update grades.
10. Use web for heavier convenience tasks like class record percentage setup and Excel export.

Notes

• ExamLock is designed as a full classroom + assessment system, not only exam locking.
• Real-time behavior depends on Firebase Realtime Database synchronization.
• For production, enforce strict Firebase Security Rules and role-based access.