How to change a hex color code depending on the time in IOS

Question

I would like to have the background of an app change colour depending on the time, for example if it is 12:34:56 the hex color code would be #123456 so the background would change color to #123456. Is this possible. Also is there any way to could use broader numbers and letters possibly because the format could exclude a lot colours.

Thanks

possible duplicate of [how to set hex color code for background](http://stackoverflow.com/questions/6207329/how-to-set-hex-color-code-for-background) — Mrunal, Dec 15 '14 at 06:18
@Mrunal This is different because it asking for changing the code based on a variable — Michael Byrne, Dec 15 '14 at 06:23
@MatthiasBauch Haha yeah, I'm just doing this for experience though. — Michael Byrne, Dec 15 '14 at 08:33

score 0 · Answer 1 · edited May 23 '17 at 12:05

to set hex color you can refer to: how to set hex color code for background to change it every second - just create specific parser, using `NSDateFormatter:

[dateFormatter setDateFormat:@"hhmmss"]; //hours minutes seconds

and then put it into function and call it every seconds using NSTimer

[NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(changeBackgroundColor) userInfo:nil repeats:YES]

score 0 · Answer 2 · edited May 23 '17 at 10:26

(Referring the answer from duplicate question suggested)

Try this code:

NSDate *mydate = [NSDate date];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"hhmmss"];
NSString *formattedDateString = [dateFormatter stringFromDate:mydate];

Then I would use

[self.view setBackgroundColor: [self colorWithHexString:formattedDateString ]];

Now colorWithHexString method is given in this question link: how to set hex color code for background

Hope this helps you to achieve your requirements.

How to change a hex color code depending on the time in IOS

2 Answers2