apologies horrible title, couldn't think of better way put it. code below:
@ibaction func btnsavetapped(sender: uibutton) { println("save button pressed") self.startai() self.btnsave.enabled = false self.animatebutton(sender) var boocontinuewithsend:bool = true (continues) when run above code, there no change controls on screen. have stepped through code , each line, there no change. btnsave.enabled, there no change. have confirmed through poing console debugger button not enabled, , yet still displays if is. , yes, have set visibly change depending on state (code below):
self.btnsave.settitlecolor(conbuttontextcolour, forstate: uicontrolstate.normal) self.btnsave.settitlecolor(conbuttontextcolourdisabled, forstate: uicontrolstate.disabled) where conbuttontextcolour uicolor.blackcolor , conbuttontextcolourdisabled gray.
it happens activity indicator, have tested manually successfully. when run above code (btnsavetapped), nothing happens (it doesn't display should). create ai programmatically here:
func createai() { let conaiviewheightwidth:cgfloat = 100 let conheightwidth:cgfloat = 50 self.aiview.settranslatesautoresizingmaskintoconstraints(false) self.view.addsubview(self.aiview) self.aiview.backgroundcolor = uicolor(red: 0, green: 0, blue: 0, alpha: 0.3) self.aiview.layer.cornerradius = 10 var constraintviewheight:nslayoutconstraint = nslayoutconstraint(item: self.aiview, attribute: nslayoutattribute.height, relatedby: nslayoutrelation.equal, toitem: nil, attribute: nslayoutattribute.notanattribute, multiplier: 1, constant: conaiviewheightwidth) var constraintviewwidth:nslayoutconstraint = nslayoutconstraint(item: self.aiview, attribute: nslayoutattribute.width, relatedby: nslayoutrelation.equal, toitem: nil, attribute: nslayoutattribute.notanattribute, multiplier: 1, constant: conaiviewheightwidth) self.aiview.addconstraints([constraintviewheight, constraintviewwidth]) var constraintviewx:nslayoutconstraint = nslayoutconstraint(item: self.aiview, attribute: nslayoutattribute.centerx, relatedby: nslayoutrelation.equal, toitem: self.view, attribute: nslayoutattribute.centerx, multiplier: 1, constant: 0) var constraintviewy:nslayoutconstraint = nslayoutconstraint(item: self.aiview, attribute: nslayoutattribute.centery, relatedby: nslayoutrelation.equal, toitem: self.view, attribute: nslayoutattribute.centery, multiplier: 1, constant: 0) self.view.addconstraints([constraintviewx, constraintviewy]) self.aiactivityindicator.settranslatesautoresizingmaskintoconstraints(false) self.aiview.addsubview(self.aiactivityindicator) self.aiactivityindicator.activityindicatorviewstyle = uiactivityindicatorviewstyle.whitelarge var constraintx:nslayoutconstraint = nslayoutconstraint(item: self.aiactivityindicator, attribute: nslayoutattribute.centerx, relatedby: nslayoutrelation.equal, toitem: self.aiview, attribute: nslayoutattribute.centerx, multiplier: 1, constant: 0) var constrainty:nslayoutconstraint = nslayoutconstraint(item: self.aiactivityindicator, attribute: nslayoutattribute.centery, relatedby: nslayoutrelation.equal, toitem: self.aiview, attribute: nslayoutattribute.centery, multiplier: 1, constant: 0) self.view.addconstraints([constraintx, constrainty]) self.aiactivityindicator.hideswhenstopped = true self.aiactivityindicator.startanimating() stopai() } here 2 routines start , stop ai respectively. because ai subview of aiview hide or unhide that. however, these problems, decided super safe , make sure unhiding , enabling ai.
func startai() { self.aiview.hidden = false self.aiactivityindicator.hidden = false self.aiactivityindicator.startanimating() println("started ai") } func stopai() { self.aiview.hidden = true println("stopped ai") } what doing wrong? in advance.
try code:
view.layoutifneeded() implement when changes made
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