Wavelet says Swift third season building UI component set for Swift UI-View Set (vii) Progress view View Learn notes

Source: Internet
Author: User

1 Import UIKit2 3 classviewcontroller:uiviewcontroller{4     5@IBOutlet weak var progress:uiprogressview!6     7Let Operationqueue =Nsoperationqueue ()8     9var completion progress: Int =0{Ten Didset (oldValue) { OneLet progress ratio = Float (Completion progress)/float ( -) ALet whether animation = (OldValue! =0) - Progress.setprogress (progress ratio, animated: whether animated) -         } the     } -     //simulate a progress "sleep operation" - func simulateprogress () { -          for_inch 0... - { + operationqueue.addoperationwithblock{ -             //delay the system time by a random second, simulating the operation of other functions of other programs +Sleep (Arc4random_uniform (Ten)) A              at nsoperationqueue.mainqueue (). addoperationwithblock{ -Self. Complete progress + + -                 return -             } -             } -         } in     } -     Overridefunc viewdidload () { to super.viewdidload () + simulateprogress () -          the     } *  $     Overridefunc didreceivememorywarning () {Panax Notoginseng super.didreceivememorywarning () -     } the}

Wavelet says Swift third season building UI component set for Swift UI-View Set (vii) Progress view View Learn notes

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.