ios - AppTest on iPhone 6 reveals unknown screen glitches (gray lines) -

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i own iphone 5 , have tested app on it, works on iphone 5 device, iphone 5 , 6 simulator, when borrowed iphone 6 weird gray lines started appearing , disappearing (when move iphone around move , disappear) around collection view cells, buttons (which in uiview containers)

i erased , still there, i've hidden buttons in cells, putted backrground , border color clear ; these lines sort of follow borders of cell.

func numberofsectionsincollectionview(collectionview: uicollectionview) -> int {         return 1 }  func collectionview(collectionview: uicollectionview, numberofitemsinsection section: int) -> int {     switch collectionview{     case collectionviewone!:         return collectionviewonerows     case collectionviewtwo!:         return collectionviewtworows     default: return 0     }  }  func collectionview(collectionview: uicollectionview, cellforitematindexpath indexpath: nsindexpath) -> uicollectionviewcell {     switch collectionview{         case collectionviewone!:      let cell = collectionview.dequeuereusablecellwithreuseidentifier("collectionviewcell", forindexpath: indexpath) as! collectionviewcell     cell.backgroundcolor = uicolor.whitecolor()     cell.textlabel.text = "hempel product"     println(int(indexpath.row))     cell.buttonview.tag = int(indexpath.row)     cell.buttonview.setbackgroundimage(uiimage(named: "hempel"), forstate: uicontrolstate.normal)     cell.buttonview.addtarget(self, action: selector("action:"), forcontrolevents: uicontrolevents.touchupinside)     cell.layer.cornerradius = 3     return cell          case collectionviewtwo!:      let cell = collectionview.dequeuereusablecellwithreuseidentifier("collectionviewcell1", forindexpath: indexpath) as! collectionviewcell     cell.backgroundcolor = uicolor.whitecolor()     cell.textlabel.text = "hempel product1"     println(int(indexpath.row))     cell.buttonview.tag = int(indexpath.row)     cell.buttonview.setbackgroundimage(uiimage(named: "hempel"), forstate: uicontrolstate.normal)     cell.buttonview.addtarget(self, action: selector("action1:"), forcontrolevents: uicontrolevents.touchupinside)     cell.layer.cornerradius = 3     return cell      default:         let cell = collectionview.dequeuereusablecellwithreuseidentifier("collectionviewcell", forindexpath: indexpath) as! collectionviewcell         return cell     }  }

did have experience this?

class collectionviewcell: uicollectionviewcell {      required init(coder adecoder: nscoder) {         super.init(coder: adecoder)     }      var textlabel: uilabel = uilabel()     var buttonview: uibutton!      override init(frame: cgrect) {         super.init(frame: frame)         // problem sa iphone 6 crtice         contentview.backgroundcolor = uicolor.clearcolor()         contentview.layer.bordercolor = uicolor.clearcolor().cgcolor          //         buttonview = uibutton.buttonwithtype(uibuttontype.system) as! uibutton         buttonview.frame = cgrect(x: frame.width / 2 - frame.width * 0.3, y: 0, width: frame.size.width * 0.6, height: frame.size.height * 0.8)          contentview.addsubview(buttonview)          let textframe = cgrect(x: 0, y: 90, width: frame.size.width, height: frame.size.height/3)         textlabel = uilabel(frame: textframe)         textlabel.font = uifont.systemfontofsize(uifont.smallsystemfontsize())         textlabel.textalignment = .center         contentview.addsubview(textlabel)        } }

iphone6screen


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