//

//  TimeHelper.h

//  ZiPeiYi

//

//  Created by 刘成利 on 16/6/14.

//  Copyright © 2016年 YouXianMing. All rights reserved.

//

#import <Foundation/Foundation.h>

@interface TimeHelper : NSObject

+ (NSString *)getCurrentTimeString;

+ (NSString *)secondsFromTimeString:(NSString *)timeString;

+ (NSString *)minuteFromTimeString:(NSString *)timeString;

@end

//

//  TimeHelper.m

//  ZiPeiYi

//

//  Created by 刘成利 on 16/6/14.

//  Copyright © 2016年 YouXianMing. All rights reserved.

//

#import "TimeHelper.h"

@implementation TimeHelper

+ (NSString *)getCurrentTimeString{

    NSDate* nowTime = [NSDate date];

    //转换时间格式

    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];//格式化

    [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];

    NSString* tempString1 = [dateFormatter stringFromDate:nowTime];

    NSDate* date = [dateFormatter dateFromString:tempString1];

    //转换时间格式

    NSDateFormatter*df = [[NSDateFormatter alloc]init]; //格式化

    [df setDateFormat:@"yyyyMMddHHmmss"];

    [df setLocale:[[NSLocale alloc]initWithLocaleIdentifier:@"zh_CN"]];

    return  [df stringFromDate:date];

}

+ (NSString *)secondsFromTimeString:(NSString *)timeString{

    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];

    [formatter setDateFormat:@"YYYY-MM-dd HH:mm:ss"];//设置你想要的格式,hh与HH的区别:分别表示12小时制,24小时制

    NSTimeZone* timeZone = [NSTimeZone timeZoneWithName:@"Asia/Beijing"];

    [formatter setTimeZone:timeZone];

    NSDate *datenow = [NSDate date];

    //设置一个字符串的时间

    NSMutableString *datestring = [NSMutableString stringWithFormat:@"%@",timeString];

    //注意 如果20141202052740必须是数字，如果是UNIX时间，不需要下面的插入字符串。

    [datestring insertString:@"-" atIndex:];

    [datestring insertString:@"-" atIndex:];

    [datestring insertString:@" " atIndex:];

    [datestring insertString:@":" atIndex:];

    [datestring insertString:@":" atIndex:];

    NSDateFormatter * dm = [[NSDateFormatter alloc]init];

    //指定输出的格式   这里格式必须是和上面定义字符串的格式相同，否则输出空

    [dm setDateFormat:@"YYYY-MM-dd HH:mm:ss"];

    NSDate * newdate = [dm dateFromString:datestring];

    long dd = (long)[datenow timeIntervalSince1970] - [newdate timeIntervalSince1970];

    return [NSString stringWithFormat:@"%ld", dd];

//    if (dd/3600<1 && dd/60>1)

//    {

//        timeStr = [NSString stringWithFormat:@"%ld", dd/60];

//        timeStr=[NSString stringWithFormat:@"%@分钟前", timeString];

//    }

//    if (dd/3600>1&&dd/86400<1)

//    {

//        timeStr = [NSString stringWithFormat:@"%ld", dd/3600];

//        timeStr=[NSString stringWithFormat:@"%@小时前", timeString];

//    }

//    if (dd/86400>1)

//    {

//        timeStr = [NSString stringWithFormat:@"%ld", dd/86400];

//        timeStr=[NSString stringWithFormat:@"%@天前", timeString];

//    }

}

+ (NSString *)minuteFromTimeString:(NSString *)timeString{

    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];

    [formatter setDateFormat:@"YYYY-MM-dd HH:mm:ss"];//设置你想要的格式,hh与HH的区别:分别表示12小时制,24小时制

    NSTimeZone* timeZone = [NSTimeZone timeZoneWithName:@"Asia/Beijing"];

    [formatter setTimeZone:timeZone];

    NSDate *datenow = [NSDate date];

    //设置一个字符串的时间

    NSMutableString *datestring = [NSMutableString stringWithFormat:@"%@",timeString];

    //注意 如果20141202052740必须是数字，如果是UNIX时间，不需要下面的插入字符串。

    [datestring insertString:@"-" atIndex:];

    [datestring insertString:@"-" atIndex:];

    [datestring insertString:@" " atIndex:];

    [datestring insertString:@":" atIndex:];

    [datestring insertString:@":" atIndex:];

    NSLog(@"datestring==%@",datestring);

    NSDateFormatter * dm = [[NSDateFormatter alloc]init];

    //指定输出的格式   这里格式必须是和上面定义字符串的格式相同，否则输出空

    [dm setDateFormat:@"YYYY-MM-dd HH:mm:ss"];

    NSDate * newdate = [dm dateFromString:datestring];

    long dd = (long)[datenow timeIntervalSince1970] - [newdate timeIntervalSince1970];

    return [NSString stringWithFormat:@"%ld", dd/];

}