How to find time is today or yesterday in android

I am developing an application for sending SMS. I am storing the current time and showing in the sent history page by retrieving the time from the database. In the sent history page I want to display the time of the message was sent. Here I want to check that the message has been sent today or yesterday or the the day before yesterday like that. If the message was sent yesterday means then I need to display "Yesterday 20:00" like that and even the message was sent yesterday before means "Monday 20:00". I don't know how it has to be done. Please help me if anybody knows.

To check if date is today, use Android utils library

DateUtils.isToday(long timeInMilliseconds)

This utils class also offers human readable strings for relative times. For example,

DateUtils.getRelativeTimeSpanString(long timeInMilliseconds) -> "42 minutes ago"

The are several parameters you can play with to define how precise the time span should be

See DateUtils

As mentioned, DateUtils.isToday(d.getTime()) will work for determining if Date d is today. But some responses here don't actually answer how to determine if a date was yesterday. You can also do that easily with DateUtils:

public static boolean isYesterday(Date d) {
    return DateUtils.isToday(d.getTime() + DateUtils.DAY_IN_MILLIS);
}

Following that, you could also determine if a date was tomorrow:

public static boolean isTomorrow(Date d) {
    return DateUtils.isToday(d.getTime() - DateUtils.DAY_IN_MILLIS);
}

You can do that easily using android.text.format.DateFormat class. Try something like this.

public String getFormattedDate(Context context, long smsTimeInMilis) {
    Calendar smsTime = Calendar.getInstance();
    smsTime.setTimeInMillis(smsTimeInMilis);

    Calendar now = Calendar.getInstance();

    final String timeFormatString = "h:mm aa";
    final String dateTimeFormatString = "EEEE, MMMM d, h:mm aa";
    final long HOURS = 60 * 60 * 60;
    if (now.get(Calendar.DATE) == smsTime.get(Calendar.DATE) ) {
        return "Today " + DateFormat.format(timeFormatString, smsTime);
    } else if (now.get(Calendar.DATE) - smsTime.get(Calendar.DATE) == 1  ){
        return "Yesterday " + DateFormat.format(timeFormatString, smsTime);
    } else if (now.get(Calendar.YEAR) == smsTime.get(Calendar.YEAR)) {
        return DateFormat.format(dateTimeFormatString, smsTime).toString();
    } else {
        return DateFormat.format("MMMM dd yyyy, h:mm aa", smsTime).toString();
    }
}

Check http://developer.android.com/reference/java/text/DateFormat.html for further understanding.

For today you can use DateUtils.isToday from android API.

For yesterday you can use that code:

public static boolean isYesterday(long date) {
    Calendar now = Calendar.getInstance();
    Calendar cdate = Calendar.getInstance();
    cdate.setTimeInMillis(date);

    now.add(Calendar.DATE,-1);

    return now.get(Calendar.YEAR) == cdate.get(Calendar.YEAR)
        && now.get(Calendar.MONTH) == cdate.get(Calendar.MONTH)
        && now.get(Calendar.DATE) == cdate.get(Calendar.DATE);
}