//獲取當(dāng)前系統(tǒng)時間的時間戳

#pragma mark - 獲取當(dāng)前時間的 時間戳

+(NSInteger)getNowTimestamp{

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

 [formatter setDateStyle:NSDateFormatterMediumStyle];

 [formatter setTimeStyle:NSDateFormatterShortStyle];

 [formatter setDateFormat:@"YYYY-MM-dd HH:mm:ss"]; // ----------設(shè)置你想要的格式,hh與HH的區(qū)別:分別表示12小時制,24小時制

 //設(shè)置時區(qū),這個對于時間的處理有時很重要

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

 [formatter setTimeZone:timeZone];

 NSDate *datenow = [NSDate date];//現(xiàn)在時間

 

 NSLog(@"設(shè)備當(dāng)前的時間:%@",[formatter stringFromDate:datenow]);

 //時間轉(zhuǎn)時間戳的方法:

 

 NSInteger timeSp = [[NSNumber numberWithDouble:[datenow timeIntervalSince1970]] integerValue];

 

 NSLog(@"設(shè)備當(dāng)前的時間戳:%ld",(long)timeSp); //時間戳的值

 

 return timeSp;

}

 

//將某個時間轉(zhuǎn)化成 時間戳

#pragma mark - 將某個時間轉(zhuǎn)化成 時間戳

+(NSInteger)timeSwitchTimestamp:(NSString *)formatTime andFormatter:(NSString *)format{

 

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

 [formatter setDateStyle:NSDateFormatterMediumStyle];

 [formatter setTimeStyle:NSDateFormatterShortStyle];

 [formatter setDateFormat:format]; //(@"YYYY-MM-dd hh:mm:ss") ----------設(shè)置你想要的格式,hh與HH的區(qū)別:分別表示12小時制,24小時制

 

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

 [formatter setTimeZone:timeZone];

 

 NSDate* date = [formatter dateFromString:formatTime]; //------------將字符串按formatter轉(zhuǎn)成nsdate

 //時間轉(zhuǎn)時間戳的方法:

 NSInteger timeSp = [[NSNumber numberWithDouble:[date timeIntervalSince1970]] integerValue];

 

 NSLog(@"將某個時間轉(zhuǎn)化成 時間戳&&&&&&&timeSp:%ld",(long)timeSp); //時間戳的值

 

 return timeSp;

}

 

//將某個時間戳轉(zhuǎn)化成 時間

#pragma mark - 將某個時間戳轉(zhuǎn)化成 時間

+(NSString *)timestampSwitchTime:(NSInteger)timestamp andFormatter:(NSString *)format{

 

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

 [formatter setDateStyle:NSDateFormatterMediumStyle];

 [formatter setTimeStyle:NSDateFormatterShortStyle];

 [formatter setDateFormat:format]; // （@"YYYY-MM-dd hh:mm:ss"）----------設(shè)置你想要的格式,hh與HH的區(qū)別:分別表示12小時制,24小時制

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

 [formatter setTimeZone:timeZone];

 NSDate *confromTimesp = [NSDate dateWithTimeIntervalSince1970:timestamp];

 NSLog(@"1296035591 = %@",confromTimesp);

 

 NSString *confromTimespStr = [formatter stringFromDate:confromTimesp];

 

 //NSLog(@"&&&&&&&confromTimespStr = : %@",confromTimespStr);

 

 return confromTimespStr;

}