iOS - Friendly NSDate format

Question

I need to display the date of posts in my app to the user, right now I do it in this format: \"Fri, 25 May\". How would I format an NSDate to read something like \"2 hours ago\"

Answer 1

+(NSString*)HourCalculation:(NSString*)PostDate

{
    NSLog(@"postdate=%@",PostDate);
    // PostDate=@"2014-04-02 01:31:04";
    NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
    [dateFormat setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
    NSTimeZone *gmt = [NSTimeZone timeZoneWithAbbreviation:@"GMT"];
    [dateFormat setTimeZone:gmt];
    NSDate *ExpDate = [dateFormat dateFromString:PostDate];
    NSLog(@"expdate=%@",ExpDate);
    NSLog(@"expdate=%@",[NSDate date ]);
    NSCalendar *calendar = [NSCalendar currentCalendar];

    NSDateComponents *components = [calendar components:(NSDayCalendarUnit|NSWeekCalendarUnit|NSMonthCalendarUnit|NSYearCalendarUnit|NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit) fromDate:ExpDate toDate:[NSDate date] options:0];

//    NSLog(@"year=%d",components.year);
//    
//    NSLog(@"month=%d",components.month);
//    
//    NSLog(@"week=%d",components.week);
//    
//    NSLog(@"day=%d",components.day);
//    
//    NSLog(@"hour=%d",components.hour);
//    
//    NSLog(@"min=%d",components.minute);
//    
//    NSLog(@"sce=%d",components.second);
//    

    NSString *time;

    if(components.year!=0)   
    {
        if(components.year==1) 
        {
            time=[NSString stringWithFormat:@"%ld year",(long)components.year];  
        }
        else{
            time=[NSString stringWithFormat:@"%ld years",(long)components.year]; 
        }    
    }
    else if(components.month!=0) 
    {
        if(components.month==1)   
        {
            time=[NSString stringWithFormat:@"%ld month",(long)components.month]; 
        }
        else{
            time=[NSString stringWithFormat:@"%ld months",(long)components.month]; 
        }
      //  NSLog(@"%@",time);
    }
    else if(components.week!=0)
    {
        if(components.week==1)
        {
            time=[NSString stringWithFormat:@"%ld week",(long)components.week];
        }
        else{
            time=[NSString stringWithFormat:@"%ld weeks",(long)components.week];
        }
       // NSLog(@"%@",time);
    }
    else if(components.day!=0)
    {
        if(components.day==1)   
        {
            time=[NSString stringWithFormat:@"%ld day",(long)components.day];
        }
        else{
            time=[NSString stringWithFormat:@"%ld days",(long)components.day]; 
        } 
    }
    else if(components.hour!=0) 
    {
        if(components.hour==1)  
        {
            time=[NSString stringWithFormat:@"%ld hour",(long)components.hour];  
        }
        else{
            time=[NSString stringWithFormat:@"%ld hours",(long)components.hour];
        }
    }
    else if(components.minute!=0)  
    {
        if(components.minute==1)  
        {
            time=[NSString stringWithFormat:@"%ld min",(long)components.minute];
        }

        else{
            time=[NSString stringWithFormat:@"%ld mins",(long)components.minute]; 
        }
      //  NSLog(@"time=%@",time);
    }
    else if(components.second>=0){

       // NSLog(@"postdate=%@",PostDate);

       // NSLog(@"expdate=%@",[NSDate date ]);

        if(components.second==0)   
        {
            time=[NSString stringWithFormat:@"1 sec"];
        }
        else{
            time=[NSString stringWithFormat:@"%ld secs",(long)components.second];
        }
    }
    return [NSString stringWithFormat:@"%@ ago",time];

}

This code will show you time in ------------sec like 2 sec ago ------------min like 2 mins ago ------------hours like 2 hours ago ------------days like 2 days ago ------------week like 2 weeks ago ------------month like 2 months ago Lastly.... years like 2 years ago :) try this