Question

目前有来自用户的文本输入，并将其添加到当前时间并在屏幕上显示为HH：mm格式的文本输入。

Current Code:-
NSString *strCurrentDate;
NSString *strNewDate;
NSDate *date = [NSDate date];
NSDateFormatter *df =[[NSDateFormatter alloc]init];
[df setDateFormat:@"hh:mm"];
strCurrentDate = [df stringFromDate:date];
NSLog(@"Current Time: %@",strCurrentDate);
int minutesToAdd = workingTime.text;
NSCalendar *calendar = [[NSCalendar 
alloc]initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *components = [[NSDateComponents alloc] init];
[components setMinute:minutesToAdd];
NSDate *newDate= [calendar dateByAddingComponents:components toDate:date options:0];
[df setDateFormat:@"hh:mm"];
strNewDate = [df stringFromDate:newDate];
NSLog(@"workingtime is :%@",workingTime.text);
NSLog(@"New Date and Time: %@",strNewDate);
crewOutTime.text = strNewDate;

然而，当我将其更改为int minutesToAdd = 40时，添加不正确的时间量;一个固定的值，它是正确的，并按照需要工作。

Answer 1

尝试

int minutesToAdd = workingTime.text.intValue;

而不是 int minutesToAdd = workingTime.text;

使用您的代码，您将minutesToAdd设置为指针。

从文本输入错误（iOS）添加分钟到当前时间

1 个答案: