How to parse ics file using iCal4j in android

Question

parse.ics A calendar file using Ical4J in android.i saw http://ical4j.sourceforge.net/introduction.html . How to use this ical4j-1.0-rc3.jar file in my project. I need help related to this plz?

Answer 1

Hey, just set up a list of jar files in your project, as shown below:

• ical4j-1.0.3.jar
• General Logging 1.1.1.jar
• Common Lang 2.6.jar
• Total-u-2.1.jar
• Common Codec-1.5.jar
• port-util-parallel-3.1.jar

Hope you help ..!

Here is a sample code for you:

package com.example.caltest; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.net.SocketException; import java.net.URI; import java.util.GregorianCalendar; import net.fortuna.ical4j.data.CalendarBuilder; import net.fortuna.ical4j.data.CalendarOutputter; import net.fortuna.ical4j.data.ParserException; import net.fortuna.ical4j.model.Calendar; import net.fortuna.ical4j.model.Component; import net.fortuna.ical4j.model.Date; import net.fortuna.ical4j.model.ParameterList; import net.fortuna.ical4j.model.Property; import net.fortuna.ical4j.model.PropertyList; import net.fortuna.ical4j.model.TimeZone; import net.fortuna.ical4j.model.TimeZoneRegistry; import net.fortuna.ical4j.model.TimeZoneRegistryFactory; import net.fortuna.ical4j.model.ValidationException; import net.fortuna.ical4j.model.component.VEvent; import net.fortuna.ical4j.model.component.VTimeZone; import net.fortuna.ical4j.model.parameter.Cn; import net.fortuna.ical4j.model.parameter.Encoding; import net.fortuna.ical4j.model.parameter.Role; import net.fortuna.ical4j.model.parameter.Value; import net.fortuna.ical4j.model.property.Attach; import net.fortuna.ical4j.model.property.Attendee; import net.fortuna.ical4j.model.property.CalScale; import net.fortuna.ical4j.model.property.ProdId; import net.fortuna.ical4j.model.property.Version; import net.fortuna.ical4j.util.UidGenerator; import org.apache.commons.io.output.ByteArrayOutputStream; import android.app.Activity; import android.os.Bundle; import android.os.Environment; public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); File file = new File(Environment.getExternalStorageDirectory()+"/1.ics"); FileInputStream fin = null; try { fin = new FileInputStream(file); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } CalendarBuilder builder = new CalendarBuilder(); Calendar calendar = null; try { calendar = builder.build(fin); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (ParserException e) { // TODO Auto-generated catch block e.printStackTrace(); } if (calendar != null) { System.out.println("value :"+calendar); PropertyList plist = calendar.getProperties(); for (Object object : plist.toArray()) { System.out.println("oj :"+object); } } // Generate Event of Christmas Day Calendar mycalendar = new Calendar(); mycalendar.getProperties().add(new ProdId("-//James Bond//iCal4j 1.0//EN")); mycalendar.getProperties().add(Version.VERSION_2_0); mycalendar.getProperties().add(CalScale.GREGORIAN); TimeZoneRegistry registry = TimeZoneRegistryFactory.getInstance().createRegistry(); TimeZone timezone = registry.getTimeZone("Asia/Calcutta"); VTimeZone tz = timezone.getVTimeZone(); java.util.Calendar startEvent = new GregorianCalendar(); startEvent.setTimeZone(timezone); startEvent.set(java.util.Calendar.MONTH, java.util.Calendar.JULY); startEvent.set(java.util.Calendar.DAY_OF_MONTH, 21); startEvent.set(java.util.Calendar.YEAR, 2012); startEvent.set(java.util.Calendar.HOUR, 9); startEvent.set(java.util.Calendar.MINUTE, 15); startEvent.set(java.util.Calendar.SECOND, 12); java.util.Calendar entEvent = new GregorianCalendar(); entEvent.setTimeZone(timezone); entEvent.set(java.util.Calendar.YEAR, 2012); entEvent.set(java.util.Calendar.MONTH, java.util.Calendar.JULY); entEvent.set(java.util.Calendar.DAY_OF_MONTH, 21); entEvent.set(java.util.Calendar.HOUR, 16); entEvent.set(java.util.Calendar.MINUTE, 10); entEvent.set(java.util.Calendar.SECOND, 10); // initialise as an all-day event.. VEvent christmas = new VEvent(new Date(startEvent.getTime()),new Date(entEvent.getTime()), "Shravan Mahino"); christmas.getProperties().add(tz.getTimeZoneId()); // Generate a UID for the event.. UidGenerator ug = null; try { ug = new UidGenerator("2"); } catch (SocketException e) { // TODO Auto-generated catch block e.printStackTrace(); } christmas.getProperties().add(ug.generateUid()); mycalendar.getComponents().add(christmas); Attendee dev1 = new Attendee(URI.create("mailto: [e-mail] ")); dev1.getParameters().add(Role.REQ_PARTICIPANT); dev1.getParameters().add(new Cn("For Ashok")); christmas.getProperties().add(dev1); Attendee dev2 = new Attendee(URI.create("mailto: [e-mail] ")); dev2.getParameters().add(Role.OPT_PARTICIPANT); dev2.getParameters().add(new Cn("For Jigar P")); christmas.getProperties().add(dev2); FileInputStream fileattach = null; try { fileattach = new FileInputStream(Environment.getExternalStorageDirectory()+"ic_launcher_home.png"); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } ByteArrayOutputStream bout = new ByteArrayOutputStream(); try { for (int i = fileattach.read(); i >= 0;) { bout.write(i); i = fileattach.read(); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } ParameterList params = new ParameterList(); params.add(Value.BINARY); params.add(Encoding.BASE64); Attach attach = new Attach(params, bout.toByteArray()); VEvent eout = (VEvent) calendar.getComponent(Component.VEVENT); Attach aout = (Attach) eout.getProperty(Property.ATTACH); System.out.println("Result : "+GenerateICAL("Ashok.ics", mycalendar)); } public Boolean GenerateICAL(String fileNameWithExtenion,Calendar calendar){ FileOutputStream fout = null; try { fout = new FileOutputStream(Environment.getExternalStorageDirectory()+"/"+fileNameWithExtenion); } catch (FileNotFoundException e1) { e1.printStackTrace(); } CalendarOutputter outputter; try { outputter = new CalendarOutputter(); outputter.output(calendar, fout); return true; } catch (IOException e) { e.printStackTrace(); return false; } catch (ValidationException e) { e.printStackTrace(); return false; } } }