1. The Challenge
In critical situations, every second counts. Fumbling to unlock a phone, finding the camera app, and manually starting a recording takes too much time and requires visual attention. Users need a reliable, tactile way to instantly capture evidence or document emergencies without having to look at their screens.
2. Our Solution
We developed an Android application that operates an ultra-low-power background monitoring service. By intercepting hardware volume key events and utilizing accelerometer data for shake detection, Cam Launcher instantly bypasses the lock screen to begin recording. Built natively with Kotlin and CameraX, the architecture guarantees zero-latency startup and stable media capture under any condition.
3. The Results
Users gain immediate peace of mind knowing that a simple physical gesture ensures their device is recording. The app operates completely offline, securely stores all media locally to protect user privacy, and provides crucial, life-saving functionality when it matters most.