ios - Countdown from current time, schedule

Question

I want to have a countdown from the current time to a specific schedule like this: 8:48, 9:29, 11:56, 12:36, 13:18, and ect. and display that value in a label.

For example. Now we have 11:00 o'clock. And UILabel tell us 56 minutes remaining. And after 11:56 it tell us 40 minutes remaining (from current 11:56 to 12:36).

I don't ask you code directly, just help to find right way to search. Thanks.

Answer 1

通过搜索谷歌的一些链接 在 Objective-c 中实现倒数计时器？ http://looksok.wordpress.com/2012/12/29/ios-timer-countdown-implementation-tutorial-include-source-code/

和实施 https://github.com/jonhernandez/iOS-Timer-Countdown

我没有看过代码质量，但它应该让你开始