Android Programming

Streaming Video Lectures On-Demand

• Android is the result of international cooperation among dozens of high tech companies to create a platform (some say operating system) to run on hand held devices.
  


• Google owns Android
  
• Oracle owns Java
  


• 200,000 Android handsets activated each day.
  


• Easy to become an independent app developer.
  


• Set up your machine for creating Android Apps!
  Appendix 1 (Below)  - Go do that now.
  

• AVD Android Virtual Devices.
  


• Packages com.valenciaprogrammers.myprojectname
  
• Android Manifest.xml
  


• Activity Stack - the back-stack.
  


• MyApplication.apk - Android package
  


• Activity... View ... Intent
  

• Create Activities and Views - Over here .. Over there
  


• Create a simple intent to move from one Activity to another
  
  
• Start to play with User Interface building (Very introductory)
  


• Creating Resources - Colors and Strings
  


• Creating an event handler for hearing a Button click
  


• Gaining understanding / comfort with how apps are put together
  

• Design an app on paper - this is the thinking / planning stage
  


• Who wants it?  Why? Do you want it? Where will you use it?  How will it change something in your life?
  
  
• Be careful with "someone I know would want this"
  


• Look through the Android Market
  


• We design an application with a fairly simple GUI / database requirement
  

• Layout Managers, Widgets, Properties
  


• Outline and Properites Windows
  
  
• Trial and Error Learning
  


• Data Collection
  


• Continue thinking about your app
  

• Get the data from the GUI, validate it, and put it in the App
  


• Define a Custom Business Class - put the user data into an obejct
  
  
• Create a subClass of Application
  


• Share data among Activities, using the Application
  
  
• Keep a list of Bugs and Features that need to be fixed later.  Watch out for Rat Holes
  


• Continue thinking about your app
  

• Alert Dialogs - Pop-up information for the user
  


• Using pre-defined Dialogs - the DatePicker Dialog
  
  
• Debugging using the DDMS - Dalvik Debug Monitor Server
  


•  Staying out of rat holes
  


• Continue thinking about your app
  

• SQLite is a small but powerful databse built into the API
  
  
• Manipulation of Dates is tricky!
  


• Create a Dabase table for the App
  
• Add data records to the table - writing SQL statements and execute them
  


• Make sure that the ArrayList is consistent with the data in the database.
  

• Create a second activity to display the bowling scores
  


• Use an intent to switch to the new activity
  
  
• Use a pre-defined view ListView to display the data (for now)
  


• Retrieve the data from the database and put it into the ListView
  

• Some GUI improvements
  


• Hearing events generated in the list view
  
  
• Removing a record from the database
  


• Update the data in the ArrayList, and refresh the calculated data
  

• Orientation flipping
  
  
• Using a Style
  
  
• Testing on physical devices
  
  
• User Testing
  
  
• Devices:  physical screen sizes, pixel count, pixel density
  
  
• Application and dialog icons
  
  

• Installing and setting up the Eclipse IDE
  
  
• Installing the Android SDK
  
  
• Download and Install the ADT Android Developpers' Tools
  
  
• Add the Android Tools Path to the Environment path variable