VioletDroid

Cay Horstmann

CS 151 Section 05

 

Anique Davla

Parvathy Menon

Vishaal Prasad

Charlene Young

VioletDroid

VioletDroid Capabilities

• Create UML Diagrams
  • Classes, Interfaces, etc.
  • Notes
  • Arrows
• Save/load diagrams as JSON files
• Export diagrams as PNG images

Design Patterns

• Use of Interfaces and Abstract Classes 
  • Minimize duplicate code 
  • Adding functionality was easier 

UmlDrawable Interface

draw(): draw items in Canvas 
contains(): check if points lie inside UmlDrawable
toJson(): returns JSON Object of UMLDrawable

• Implementing classes:
  • UmlNode
  • UmlBentArrow  

UmlNode Abstract Class

float x, y: coordinates
Rect getOutline(): returns rectangle that defines the shape
set(): sets top-left position
boolean contains(): checks if given location is contained in node

 

 

 

• Extending classes:
  • UmlNoteNode
  • UmlClassNode
• Any rectangular item in a UML diagram

UmlEditor

• UMLEditorActivity:
  • adding/editing arrow options
  • all file saving options
  • checking for unsaved changes
  • creating buttons in view
  • adding UML editor on top of pixel grid
  • creating pixel grid
• UMLEditorView:
  • Creating new editor view and canvas
  • Adding/editing items, nodes, UMLDrawable items
  • All touch events
  • Bitmap object with all of the items in the view

What We Learned - Android

• Creating Activities
• Saving and reading files on the device
• Efficient use of Interfaces
• Returning Bitmaps and JSON Objects
• OnClickListeners and Touch Events
• Using the XML Editor to create views
• Traversing through Activities
• Dealing with GUI Objects (UMLNode classes, UMLDrawable)

What We Learned - Git

 

• Git
  • Branching 
    • Working with individual develop branches
  • Merging 
    • Managing a master branch that is functional at all times with "finalized" code
    • Managing a project with multiple contributors
• GitHub vs. Bitbucket
  • While both clients use Git Version Control, we used Github due to issues we were having with adding multiple contributors on Bitbucket.

Working As A Team

 

• Git Management
  • Issue Tracker gave us an organized way to track the bugs and features that needed to be added or fixed to our project. 
  • Tracking our progress on issues gave us a clear idea of where we stood.
• Communication
  • Communicating and critiquing our ideas about design changes, features, etc. was crucial to completing a clean, robust application.