VioletDroid

An Android Application to easily create and share UML Diagrams

Installation

This app compiles at API 24, but compatible all the way back to API 15.

Compatible with most phones and tablets

Android SDK

You'll need to set your global $ANDROID_HOME variable to install, or, add a local.properties file in the VioletDroidApplication folder with your sdk.dir variable set. That should look something like the following:

For macOS:

sdk.dir=/Users/yourname/Library/Android/sdk/

For Windows:

sdk.dir=C:\\Users\\username\\AppData\\Local\\Android\\Sdk

Building the app

To build and install the app, first plug your Android into your computer, or start an Android emulator. Then run the following command in the VioletDroidApplicaton folder: ./gradlew installDebug

vishaal ~/violet-droid % ./gradlew installDebug

Using VioletDroid

VioletDroid makes several features available to you.

Saving and Loading

You can save your diagram at any time by hitting FILE at the top and following the on-screen options to save and load your files. You can come back to VioletDroid and load your previously saved VioletDroid files.

Adding Classes and Notes

Tap CLASS or NOTE to add a Class item or a Note item to your diagram.

Adding Arrows

Add an arrow by tapping ARROW. A dialog will appear where you can make changes to the properties of the arrow. Then, tap the item from which the arrow should be drawn, then on the item the arrow should draw to. You can draw an arrow from an item to itself if desired.

Deleting an Item

Delete an Item by pressing and holding an item to select it (it will appear highlighted) then press the delete button.

Editing an Item

Edit an Item by pressing and holding an item to select it (it will appear highlighted) then press the type of item you have selected at the top. For example, to edit an arrow, tap and hold the arrow to select the arrow, then tap the ARROW button.