get Yesterday Start In Milliseconds - Android java.util

Android examples for java.util:Millisecond

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Description

get Yesterday Start In Milliseconds

Demo Code


//package com.java2s;

import java.util.Calendar;

public class Main {
    private static final long dayInMilli = 86400000;

    public static long getYesterdayStartInMilli() {
        return getStartOfTodayInMilli() - dayInMilli;
    }//from ww  w.j  av a  2  s. c o m

    public static long getStartOfTodayInMilli() {
        Calendar cal = initClearDayCal();
        return cal.getTimeInMillis();
    }

    private static Calendar initClearDayCal() {
        Calendar cal = Calendar.getInstance();
        cal.set(Calendar.HOUR_OF_DAY, 0); // ! clear would not reset the hour of day !
        cal.clear(Calendar.MINUTE);
        cal.clear(Calendar.SECOND);
        cal.clear(Calendar.MILLISECOND);

        return cal;
    }
}

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