Ios 将NSString转换为NSDate时?
我尝试使用以下代码将Ios 将NSString转换为NSDate时?,ios,objective-c,nsstring,nsdate,Ios,Objective C,Nsstring,Nsdate,我尝试使用以下代码将NSString转换为NSDate: NSString *dateString=[[NSString alloc] init]; dateString = [[messageArray objectAtIndex:i] tim_dte]; NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateFormat:@"HH:mm,yyyy/MM/dd"]; NSDa
NSString
转换为NSDate
:
NSString *dateString=[[NSString alloc] init];
dateString = [[messageArray objectAtIndex:i] tim_dte];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"HH:mm,yyyy/MM/dd"];
NSDate *dateFromString = [[NSDate alloc] init];
dateFromString = [dateFormatter dateFromString:dateString];
msg.date = dateFromString;
但是msg.Date
是nil
,即使dateString
显示了正确的日期字符串。我缺少什么?更改此格式
[dateFormatter setDateFormat:@"HH:mm,yyyy/MM/dd"];
进入并尝试
[dateFormatter setDateFormat:@"yyyy/MM/dd HH:mm"];
更新
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"yyyy/MM/dd HH:mm"];
// use simple
msg.date = [dateFormatter dateFromString:@"2016/05/06 12:36"];
NSLog(@"final date == %@",dateFromString);
//NSDate *dateFromString = [dateFormatter dateFromString:@"2016/05/06 12:36"];
// NSLog(@"final date == %@",dateFromString);
使用此代码
NSString *dateString=[[NSString alloc] init];
dateString =[[messageArray objectAtIndex:i] tim_dte];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"yyyy/MM/dd HH:mm"];
NSDate *dateFromString = [[NSDate alloc] init];
dateFromString = [dateFormatter dateFromString:dateString];
msg.date=dateFromString;
希望对您有所帮助尝试使用此代码将NSString转换为NSDate
NSString *dateString = @"2016-05-06";
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ssZ"];
NSDate *date = [dateFormatter dateFromString:@"2013-02-01T06:25:47Z"];
NSTimeZone *pdt = [NSTimeZone timeZoneWithAbbreviation:@"PDT"];
[dateFormatter setTimeZone:pdt];
[dateFormatter setDateFormat:@"HH:mm:ss zzz"];
[dateFormatter setDateFormat:@"K:mm a, z"];
NSString * updated String = [dateFormatter stringFromDate:date];
你的
日期字符串是什么
你能证明在将nsstring转换为nsdate时,日期格式也很重要吗?@Bittoo--100%manodatry bro,如果它被修改,你总是会得到零为什么在这里分配日期