DaniruKun / RigaNav

An Android application built in Java to help tourists in Riga quickly bring up relevant bus and other transport information.

RigaNav Android App

An Android application built in Java to help tourists arriving at the Riga International Airport (RIX) quickly get relevant bus and other transport information.

What it can do

The app displays the following information:

• Arrival times of the 22nd bus at the airport (up to 3 soonest).
• Departure times of the corresponding buses.
• Fare for taking the bus
• Fare of different taxi providers from the airport

What it cannot do

• Fetch data from saraksts.rigassatiksme.lv
• Manually refresh screen
• Adjust screen XML data using a UI

How it works

Display

To display data on the main screen, a TableLayout object is used, which then displays other objects such as TextViews.

TableLayout myTable = (TableLayout)findViewById(R.id.TableLayout1);
        myTable.setStretchAllColumns(true);

By using child elements such as Rows and Columns, new elements such as TextViews can be added if needed without interfering with the existing layout properties.

TableRow busRow = new TableRow(this);
        myTable.addView(busRow);
        busRow.setTextAlignment(View.TEXT_ALIGNMENT_CENTER);

        TextView busText = new TextView(this);
        busText.setText("Bus No 22");
        busText.setTextSize(24);
        busRow.addView(busText);

        TextView leavesInText = new TextView(this);
        leavesInText.setText("Leaves in");
        leavesInText.setTextSize(24);
        busRow.addView(leavesInText);

A child element of TableLayout - TableRow is used and added to the screen using the addView() method.

Time

To find out the local time, the app uses the Calendar object and the get() method to write the object's properties to corresponding variables of type Int.

Calendar c = GregorianCalendar.getInstance();

To account for weekends, as well as Latvian holidays, a local file /main/assets/atviaHolidays.txt directory is read with holiday dates written in the following format: "DD MM YYYY" as strings, with each entry on its own separate line.

1 1 2017

A BufferedReader object is used to read files only once and parse the data into ArrayList structures.

List<Integer> days = new ArrayList<>();
            List<Integer> months = new ArrayList<>();
            List<Integer> years = new ArrayList<>();
            BufferedReader holidayRead = new BufferedReader(new InputStreamReader(getAssets().open("latviaHolidays.txt")));
            

Test Cases