get Day Of Week via Calendar - Android java.util

Android examples for java.util:Week

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Description

get Day Of Week via Calendar

Demo Code

import android.text.format.Time;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;

public class Main{


    private static String getDayOfWeek(String format, int calendarField) {
        String strDate = null;/*from  ww w .java 2  s .c o  m*/
        try {
            Calendar c = new GregorianCalendar();
            SimpleDateFormat mSimpleDateFormat = new SimpleDateFormat(
                    format);
            int week = c.get(Calendar.DAY_OF_WEEK);
            if (week == calendarField) {
                strDate = mSimpleDateFormat.format(c.getTime());
            } else {
                int offectDay = calendarField - week;
                if (calendarField == Calendar.SUNDAY) {
                    offectDay = 7 - Math.abs(offectDay);
                }
                c.add(Calendar.DATE, offectDay);
                strDate = mSimpleDateFormat.format(c.getTime());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return strDate;
    }

    public static int getDayofweek(String date) {
        Calendar cal = Calendar.getInstance();
        if (date.equals("")) {
            cal.setTime(new Date(System.currentTimeMillis()));
        } else {
            cal.setTime(new Date(getDateByStr2(date).getTime()));
        }
        return cal.get(Calendar.DAY_OF_WEEK);
    }

}

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