uitableview - iOS Swift How to change or update UILabel attribute in custom UITableViewCell -

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i want update/change uilabel attribute (background color,background shape,etc...) dynamically when data web service.

i want dispaly label in difference type different lable text, update uilabel attribute according testdata got web server. : if testdata=[1,1,1,1] uilabel background color red , testdata=[2,2,2,2] uilabel background color blue.etc

i doing following:

in main.stroyboard:

i add tableview , tableviewcell (choice custom) associated uitableviewcell named tvcell , add uilabel component.

in tvcell

import uikit class tvcell: uitableviewcell {      @iboutlet weak var testlabel: uilabel!      var testdata:testdatainfo?{         didset{             updateui()         }     }      private func updateui(){         if let mfildata=testdata{             setstauteslabel()         }     }      private func setstauteslabel(){         self.testlabel=uilabel(frame: cgrect(x: 50, y: 50, width: 100, height: 35))         self.testlabel.text = "thistestlabel"          self.testlabel.transform = cgaffinetransformmakerotation(0.2)         self.superview?.addsubview(self.testlabel)     } }

methode 1: in tableviewcontroller

func tableview(tableview: uitableview, cellforrowatindexpath indexpath: nsindexpath) -> uitableviewcell {     let data = testdatainfo![indexpath.row]     let cell = self.tv.dequeuereusablecellwithidentifier(storyboard.projectappliedcellindentifier,forindexpath: indexpath)     if let filesdatacell = cell as? tvcell{         filesdatacell.testdata=data     }     return cell }

result 1

just 1 cell testlabel has been change , rest cell no display testlabel

methode 2: in tableviewcontroller

func tableview(tableview: uitableview, cellforrowatindexpath indexpath: nsindexpath) -> uitableviewcell {     let data = testdatainfo![indexpath.row]     let cell = self.tv.dequeuereusablecellwithidentifier(storyboard.projectappliedcellindentifier,forindexpath: indexpath)     if let filesdatacell = cell as? tvcell{         filesdatacell.testdata=data         // update testlable in there         let testlable:uilabel=uilabel(frame: cgrect(x: 50, y: 50, width: 100, height: 35))         testlable.text = "thislabel"         testlable.transform = cgaffinetransformmakerotation(0.2)         cell.contentview.addsubview(testlable)     }     return cell }

result 2

can display testuilabel in cell. not update testlabel original add new uilabel

but why ? want update uilable in tvcell. can me?

don't create new instance of testlabel in tableviewcontroller. can directly access in tableviewcontroller filesdatacell.testlabel; since cells reused, adding new label keep on adding new labels without discarding previous labels.


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