Get the time difference between a beginning time and an end time - Android java.util

Android examples for java.util:Date Algorithm

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Description

Get the time difference between a beginning time and an end time

Demo Code


import android.text.format.Time;

public class Main{
    private static final Time time = new Time();
    /**//from   w  w  w .j  a va2  s.  co m
     * Get the time difference between a beginning time and an end time
     * 
     * @param begin - Start time in seconds
     * @param end   - Ending time in seconds
     * @return String - formatted duration
     */
    public static String getFormattedDuration(long begin, long end) {
        long dT = end - begin;
        return HamDroidUtil.formatSecondsToHHMM(dT);
    }
    /**
     * Get get time difference between now and a beginning time
     * 
     * @param begin - Start time in seconds
     * @return String - formatted duration 
     */
    public static String getFormattedDuration(long begin) {
        long now = HamDroidUtil.getCurrentTime();
        return HamDroidUtil.getFormattedDuration(begin, now);
    }
    /**
     * Converts seconds into hours and minutes. 
     * 
     * @param seconds - time in seconds 
     * @return String - in the form of <hours>h <minutes>min
     */
    public static String formatSecondsToHHMM(long seconds) {
        long m = (seconds / 60) % 60;
        long h = (seconds / 60) / 60;
        String hhmm = "";

        if (h > 0) {
            hhmm += h + "h";
        }
        if (m > 0) {
            hhmm += " ";
            hhmm += m + "min";
        }
        if (hhmm.length() < 1) {
            hhmm += "1min";
        }
        return hhmm;
    }
    /**
     * Get the current time in seconds since January 1, 1970
     * 
     * @return long - see description...
     */
    public static long getCurrentTime() {
        time.setToNow();

        long now = time.toMillis(false) / 1000;

        return now;
    }
}

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