如何检查时间是否是白天/夜晚目标C [复制](How to check if time is day/night Objective C [duplicate])

如何检查时间是否是白天/夜晚目标C [复制](How to check if time is day/night Objective C [duplicate])

这个问题在这里已经有了答案：

ios-检查当前时间是否在两次或三次之间

我想要创建一个相当简单的功能的一些意见/帮助，这里是要求：

我需要确定当前时间是白天还是晚上（白天是早上6点到晚上6点）。 例如这里是一些伪代码：

if(currentTime < 6pm && currentTime > 6am){ return timeIsDay } else{ return timeIsNight }

这是Objective C中的IOS应用程序，必须与IOS 8.0兼容。

This question already has an answer here:

ios- Check whether current time is between two times or not 4 answers

I would like some opinions/help with creating a fairly simple function, here are the requirements:

I need to determine if the current time is day or night (Day is between 6am and 6pm). For example here is some pseudo code:

if(currentTime < 6pm && currentTime > 6am){ return timeIsDay } else{ return timeIsNight }

This is for an IOS application in Objective C and MUST be IOS 8.0 compatible.

最满意答案

尝试这个

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateFormat:@"HH.mm"]; NSString *strCurrentTime = [dateFormatter stringFromDate:[NSDate date]]; NSLog(@"Check float value: %.2f",[strCurrentTime floatValue]); if ([strCurrentTime floatValue] >= 18.00 || [strCurrentTime floatValue] <= 6.00){ NSLog(@"It's night time"); }else{ NSLog(@"It's day time"); }

Try this

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateFormat:@"HH.mm"]; NSString *strCurrentTime = [dateFormatter stringFromDate:[NSDate date]]; NSLog(@"Check float value: %.2f",[strCurrentTime floatValue]); if ([strCurrentTime floatValue] >= 18.00 || [strCurrentTime floatValue] <= 6.00){ NSLog(@"It's night time"); }else{ NSLog(@"It's day time"); }