swift - Today Widget - Conflict Autolayout Constraint When Locking the device -


i implementing today widget. first time getting hands onto today widget.

i created today widget programmatically without using storyboard. learned post, did: 1. change info plist 2. enable "embedded content contains swift code" 3. add @objc(hgtodayviewcontroller) after import hgtodayviewcontroller inital view controller

in loadview in hgtodayviewcontroller 

var mainview:hgtodayview!  override func loadview() {   self.mainview = hgtodayview(frame: cgrectzero)   self.view = self.mainview }

in hgtodayview: 

override init(frame: cgrect) {   super.init(frame: frame)    // self   self.translatesautoresizingmaskintoconstraints = false    // subview   self.tableview = uitableview()   self.tableview.translatesautoresizingmaskintoconstraints = false   self.addsubview(self.tableview)    // constraint   self.setconstraint()    // debug   self.tableview.backgroundcolor = uicolor.redcolor() }

in hgtodayview setconstraint method: 

  func setconstraint() {     // self.height     let selfheight = nslayoutconstraint(       item: self,       attribute: .height,       relatedby: .equal,       toitem: nil,       attribute: .notanattribute,       multiplier: 1, constant: 200)     // avoid constraint conflict "uiview-encapsulated-layout-height"     // https://stackoverflow.com/a/25795758/2581637     selfheight.priority = 999     self.addconstraint(selfheight)      let viewdict = dictionary(dictionaryliteral: ("tableview", self.tableview))      let tableviewhorizontallylayout = nslayoutconstraint.constraintswithvisualformat(       "|[tableview]|",       options: nslayoutformatoptions.directionleadingtotrailing,       metrics: nil, views: viewdict)     self.addconstraints(tableviewhorizontallylayout)      let tableviewverticallylayout = nslayoutconstraint.constraintswithvisualformat(       "v:|[tableview]|",       options: nslayoutformatoptions.directionleadingtotrailing,       metrics: nil, views: viewdict)     self.addconstraints(tableviewverticallylayout)   }

because haven't setup table view delegate it, suspect not generate cells @ moment , displays red table view supposed do. however, if go ahead press lock button lock device, pops out conflict in constraint msg in console.

here conflict in constraint message: 

2016-06-01 17:47:48.311 hgtoday[4549:462502] unable simultaneously satisfy constraints.   @ least 1 of constraints in following list 1 don't want.    try this:        (1) @ each constraint , try figure out don't expect;        (2) find code added unwanted constraint or constraints , fix it.  (     "<nslayoutconstraint:0x14fd50eb0 v:|-(4)-[uiinputsetcontainerview:0x14fd5f570]   (names: '|':uitexteffectswindowhosted:0x14fe6f670 )>",     "<nslayoutconstraint:0x14fd6c7c0 'uiinputwindowcontroller-top' v:|-(0)-[uiinputsetcontainerview:0x14fd5f570]   (names: '|':uitexteffectswindowhosted:0x14fe6f670 )>" ) attempt recover breaking constraint      <nslayoutconstraint:0x14fd50eb0 v:|-(4)-[uiinputsetcontainerview:0x14fd5f570]   (names: '|':uitexteffectswindowhosted:0x14fe6f670 )>  make symbolic breakpoint @ uiviewalertforunsatisfiableconstraints catch in debugger. methods in uiconstraintbasedlayoutdebugging category on uiview listed in <uikit/uiview.h> may helpful.  2016-06-01 17:47:48.335 hgtoday[4549:462502] unable simultaneously satisfy constraints.     @ least 1 of constraints in following list 1 don't want.      try this:          (1) @ each constraint , try figure out don't expect;          (2) find code added unwanted constraint or constraints , fix it.  (     "<nslayoutconstraint:0x14fd63780 v:|-(4)-[uiinputsetcontainerview:0x14fe70820]   (names: '|':uiremotekeyboardwindowhosted:0x14fe70490 )>",     "<nslayoutconstraint:0x14fd65530 'uiinputwindowcontroller-top' v:|-(0)-[uiinputsetcontainerview:0x14fe70820]   (names: '|':uiremotekeyboardwindowhosted:0x14fe70490 )>" )  attempt recover breaking constraint  <nslayoutconstraint:0x14fd63780 v:|-(4)-[uiinputsetcontainerview:0x14fe70820]   (names: '|':uiremotekeyboardwindowhosted:0x14fe70490 )>  make symbolic breakpoint @ uiviewalertforunsatisfiableconstraints catch in debugger. methods in uiconstraintbasedlayoutdebugging category on uiview listed in <uikit/uiview.h> may helpful.

this conflict in constraint seems occur when lock phone. how can solve conflict? appreciated. thank time.


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