Зачем нужен контекст для getRelativeTimeSpanString?

Question

Мне было интересно, почему getRelativeTimeSpanString нужен контекст? (Оставляя в стороне каламбуры)

public static CharSequence getRelativeTimeSpanString (Context c, long millis, boolean withPreposition) 

Answer 1

Посмотрите через исходный код:

public static CharSequence getRelativeTimeSpanString(Context c, long millis, 
     boolean withPreposition) { 

    long now = System.currentTimeMillis(); 
    long span = now - millis; 

    if (sNowTime == null) { 
     sNowTime = new Time(); 
     sThenTime = new Time(); 
    } 

    sNowTime.set(now); 
    sThenTime.set(millis); 

    String result; 
    int prepositionId; 
    if (span < DAY_IN_MILLIS && sNowTime.weekDay == sThenTime.weekDay) { 
     // Same day 
     int flags = FORMAT_SHOW_TIME; 
     result = formatDateRange(c, millis, millis, flags); 
     prepositionId = R.string.preposition_for_time; 
    } else if (sNowTime.year != sThenTime.year) { 
     // Different years 
     int flags = FORMAT_SHOW_DATE | FORMAT_SHOW_YEAR | FORMAT_NUMERIC_DATE; 
     result = formatDateRange(c, millis, millis, flags); 

     // This is a date (like "10/31/2008" so use the date preposition) 
     prepositionId = R.string.preposition_for_date; 
    } else { 
     // Default 
     int flags = FORMAT_SHOW_DATE | FORMAT_ABBREV_MONTH; 
     result = formatDateRange(c, millis, millis, flags); 
     prepositionId = R.string.preposition_for_date; 
    } 
    if (withPreposition) { 
     Resources res = c.getResources(); 
     result = res.getString(prepositionId, result); 
    } 
    return result; 
}