- Requesting to store a player's move, SetValue
● Use the player name as the key
● Use the choice name as the value - Requesting a list of opponents, GetValue
● Use the key “GET_OPPONENTS”
● Query returns a string value of opponent names joined by “&”
● E.g. Request “GET_OPPONENTS” returns “Rick&Piper”, i.e. Rick and Piper are possible opponents
● Usefull blocks for handling data transfer is – “split”, splits a string at a specific delimiter - Requesting a player move, GetValue
● Use the player name as the key
● E.g. Request “Rick” returns the value of Rick's move
- Define variables
- Assign values to variables
- Create the initial screen
- Register button click
- Database communication when getting a value
- Notification
- Button choice behaviour
- Storing move in data base
- Methods after picking
- Calculating the result
Improvements of Rock, Papers or Scissors
- Disallow duplicate names
- Improve security e.g. Database injection
- Handle invalid values
- Return player to start when a move is stored
- Remove moves which has been in a game
AppInventor Links
- http://appinventor.googlelabs.com/learn/tutorials/index.html
- http://appinventor.googlelabs.com/learn/reference/index.html
- https://sites.google.com/site/theairepository/
- https://sites.google.com/site/appinventorresources/home/tutorial-topics
Sample Apps
● General user base: https://sites.google.com/site/theairepository/source-code
● University of San Francisco: http://sites.google.com/site/usfandroidmarket/
●Debugging in AppEngine use
● “do it”
● “watch”
●AppEngine API not completly updated
●Do not use “,” when returning values with TinyWebDB
●Developing on a local server the address is “http://10.0.2.2”