date - How to convert iPhone time into seconds? -

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i have problem. before explain, let me few things out of way. have progress bar has 604,800 states become full. how many seconds in week, , every second passes, want progress bar change one. me?

okay, here problem. since homemade progress bar in seconds, need convert iphone time seconds , display progress bar accordingly. reset @ midnight sunday (changeable day user depending on day last day of week, no difference). example, if 5 o'clock in morning on monday (18,000 seconds after midnight sunday) progress bar on it's 18,000th state.

how can accomplish this? believe need first convert [nsdate date]; seconds , add each second passes int resets every week.

this confusing, think explained well. can me out?

thank you!

use - (nstimeinterval)timeintervalsincedate:(nsdate *)anotherdate. in case, like:

nsdate *previoussunday = [self previoussunday]; // still need define method. nsdate *now = [nsdate date]; nstimeinterval secondsfromsunday = [now timeintervalsincedate: previoussunday];

for how implement method previoussunday, check out: dynamically create date previous sunday @ 12:00 am.


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