Overview

Drawing application that allows users to take a photo, select colors, draw. Additional features include saving, undoing and reset.

Setup

To start application, open in Android Studio and run.

Drawing

• Drawing is done by creating a path and calculating a route between paths. Drawing circles directly to canvas based on movements could led to "gaps" if movement was quick. ie. If user goes from x:0 -> x:100 very quickly with a brush width of 100 need to ensure that there is 100 unique circles drawn

Saving

• Photos are only accessible via app in external dir, can be accessed externally on emulator or via rooted device
• Each layer is saved as a PNG with background

Tests

• Only basicpPresenter tests were created, testing additional functionality would require significant mocking/ui/screenshot tests
• Test can be run with ./gradlew check

Implementation Notes

• File operations completed on main thread, future enhancement offload and provide appropriate loaders
• Does not handle lifecycle events such as rotations. Would require persistance, reload mechanisms. Bundle not appropriate for images. Future enhancement