ios - How to animate to back UI element into original position in Swift? - 


import uikit  class aboutview: uiview {      @iboutlet var aboutview: uiview!     @iboutlet weak var studiotxt: uilabel!     @iboutlet weak var closebtn: uibutton!      var studiotxtoriginy: cgfloat = 0.0      override init(frame: cgrect) {         super.init(frame: frame)         initializeviews()     }      required init?(coder adecoder: nscoder) {         super.init(coder: adecoder)         initializeviews()     }      private func initializeviews() {         bundle.main.loadnibnamed("aboutview", owner: self)         addsubview(aboutview)          studiotxtoriginy = self.studiotxt.frame.origin.y          self.studiotxt.frame.origin.y = studiotxtoriginy + 27     }      @ibaction func onclose(_ sender: any) {         close()     }      func close() {         uiview.animate(withduration: 0.5, delay: 0, usingspringwithdamping: 0.7, initialspringvelocity: 0.0, options: .curveeaseinout, animations: {             self.studiotxt.frame.origin.y = self.studiotxtoriginy             }, completion: { _ in             //         })     } }

when touch btn, label 100 pixels higher original position, used autoresizing equals height , weight constraint label

this happens because on initialization layout not performed yet. better if find different approach want, "dirty" solution can use layoutsubviews method:

override func layoutsubviews() {     super.layoutsubviews()     if studiotxtoriginy == 0 { // avoid setting value more 1 time         studiotxtoriginy = self.studiotxt.frame.origin.y     } }

Comments

Post a Comment

Popular posts from this blog

ubuntu - PHP script to find files of certain extensions in a directory, returns populated array when run in browser, but empty array when run from terminal -

i running os ububtu 16.04. ultimate goal able run php script cron job every minute. here php script located @ /var/www/html/tests/test/index.php : <?php $directorypath = $_server['document_root']."/tests/test/data/"; echo "directorypath: $directorypath<br><br>";//check $imagefilepathsarray = glob($directorypath . "*.{png,gif}", glob_brace); echo "<br><br>imagefilepathsarray: "; print_r($imagefilepathsarray);//check ?> when open php script in browser visiting url my-ip-address/tests/test/index.php , get: directorypath: /var/www/html/tests/test/data/ imagefilepathsarray:array( [0] => /var/www/html/tests/test/data/pic.png [1] => /var/www/html/tests/test/data/pic.gif ) before writing cron job in crontab file, need check if can run anywhere using terminal . opened ubuntu terminal @ /home/ location, , executed in terminal: sudo php /var/www/html/tests/test/index.php i got following out...
Read more

php - How can i create a user dashboard -

today have questions you, want create user dashboard site, include (obviously), users data, example -email -username -and others stuff how can information, , print them in html page? if can, how can these information via php sessions? shuld use session? example, if user login, , start new session ( session_start() ), how can data print in dashboard? should use php "project"? in advice, have day , thank time!
Read more

javascript - How to detect toggling of the fullscreen-toolbar in jQuery Mobile? -

i have jquery mobile page fixed full-screen toolbar, data-tap-toggle enabled. straight under toolbar have positioned banner should slide upwards when toolbar hiding , slide downward when toolbar showing. jquery mobile toggles toolbar applying , removing ui-fixed-hidden class - sadly, can't find in documentation of toolbar widget toggle , hide or show event that. how can detect when toolbar toggled, reposition banner? .banner { position: fixed; background-color: darkseagreen; top: 46px; min-height: 48px; width: 100%; text-align: center; line-height: 48px; } <!doctype html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no"> <link rel="stylesheet" href="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.css"> <script src="https://code.jquery.com/jquery-1....
Read more