CIS399AndroidDemos

Demos of Android apps for CIS 399 at the University of Oregon. Apps were written in Java using Android Studio.

Note: All these apps are in one repository, so you will need to download or clone the whole repository even if you only want code for one app.

Directory

• RockPaperScissors-SingleActivity

  • A game with one activity and:
    • a ConstraintLayout
    • putting logic code in a separate class
    • setting an onClick handler using an XML widget attribute

• RockPaperScissors-SingleActivity-Menu+Settings

  • A game with one activity and:
    • a menu in the app bar
    • a settings activity and xml layout with a CheckBoxPreference

• RockPaperScissors-SingleActivity-MultiLayout

  • A game with a single activity and:
    • layouts for both screen orientations:
      • portrait
      • landscape
    • Activity state is saved in a Bundle using the onSaveInstanceState callback method.

• Multi-ActivityDemo

• A very simple app that demonstrates starting a second activity

• RockPaperScissors-MultiActivity

  • An RPS game with two activities
    • Uses radio buttons for player's hand choice
    • The second activity has an app bar with an up button
    • The player's hand choice is sent to the second activity in an intent

• SimpleFragmentDemo

  • A simple app that has two activities and two fragments.
    • In portrait orientation each fragment is loaded into a separate activity.
    • In landscape orientation both fragments are loaded in one activity.
  • The state of the first activity is saved during rotation, the second activity has configuration change disabled.
  • When a button on the first fragment is clicked, a message is sent to the second fragment.

• RockPaperScssors-Fragments

  • A game with two activities and two fragments which are loaded differently depending on screen size and orientation. Activities have a Toolbar and the second activity has an up button on the Toolbar.

• AsyncDemo

• A simple demo of running a task on a non-UI thread using AsyncTask.

• DatePickerDemo

• A simple app with just a DatePicker widget and a TextView that shows the date selected. The Calendar class is used to get the current date and the SimpleDateFormat class is used to format the date obtained from the picker.

• SimpleListViewDemo

  • One Activity with a ListView in its UI
  • An ArrayIndex of HashMap objects with contact info
  • A SimpleAdapter
  • An item click handler

• SimpleRecyclerViewDemo

  • One Activity with a RecyclerView in its UI
  • An ArrayIndex of HashMap objects with contact info
  • A RecyclerView Adapter
  • A View click handler

• WeatherForecast-SAX+ListView

  • Parses an XML file of weather data using SAX
  • Displays weather icons in the ListView along with the weather data.
  • The data is from Open Weather Map.

• WeatherForecast-SAX+SQLite+ListView

  • Uses a database to store multiple weather forecasts in an SQLite database.
  • Uses a SimpleCursorAdapter with the ListView.
  • Data is in the form of XML files downloaded from CDYNE Weather

• WeatherForecast-SAX+SQLite+REST+ListView

  This app is no longer working. Weather Underground no longer provides a Web API

  • Pulls forecast data from the Weather Underground REST service

• Parse the XML forecast data using SAX

  • Stores the forecasts in a SQLite database
  • Uses a CursorAdapter to display a forecast in a ListView.

• WeatherForecast-kSOAP+SQLite+ListView

• Similar to WeatherForecast-SAX+SQLite+ListView, but it gets it's weather forecast data from a SOAP web service instead of from XML files. It uses kSOAP as the web service client. 7/12/16: Unfortunately, the cdyne weather web service used by this app is defunct!

• kSoapWaterTempDemo

  • A very simple app that demonstrates using the kSoap2-Android library to read from a web service. It reads the ocean temperature from a NOAA SOAP web service.

• GeoDistanceCalcuator

  • Uses the Fused Location Provider (Google Play Services) to get the current latitude and longitude.
  • Use an Android Geocoder object to convert latitude and longitude to an address and vice-versa.
  • Uses Android Location objects to calculate the distance between the two locations.

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I wrote these apps for CIS 399, Android Mobile Application Development, a course I teach at the University of Oregon.

Read about Android programming on my blog: https://birdsbits.wordpress.com/tag/android/