ios - How do I control the background color of selected cells in a UITableView -

i using uitableview preference screen, rows represent user selections.
maintaining selection using nsuserdefaults. issue trying create special cell, building special color , using in following code:

- (uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath {     uitableviewcell *cell = [tableview dequeuereusablecellwithidentifier:@"uitableviewcell"];      if (!cell) {         cell = [[uitableviewcell alloc] initwithstyle:uitableviewcellstyledefault reuseidentifier:@"uitableviewcell"];     }     cell.textlabel.text = [myarray objectatindex:[indexpath row]];     uiview *selectioncolor = [[uiview alloc] init];     selectioncolor.backgroundcolor = [uicolor colorwithred:(200/255.0) green:(200/255.0) blue:(200/255.0) alpha:0.6];     cell.selectedbackgroundview = selectioncolor;     cell.textlabel.textcolor = [uicolor graycolor];     return cell;     } 

based on this, when user click occurs, displays grayish color building in event, want. when user deselects it, greyish background color gone.

now need add nsuserdefaults, check whether cell saved. events becomes now:

- (uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath {     uitableviewcell *cell = [tableview dequeuereusablecellwithidentifier:@"uitableviewcell"];      if (!cell) {         cell = [[uitableviewcell alloc] initwithstyle:uitableviewcellstyledefault reuseidentifier:@"uitableviewcell"];     }     cell.textlabel.text = [myarray objectatindex:[indexpath row]];     uiview *selectioncolor = [[uiview alloc] init];     selectioncolor.backgroundcolor = [uicolor colorwithred:(200/255.0) green:(200/255.0) blue:(200/255.0) alpha:0.6];     cell.selectedbackgroundview = selectioncolor;     cell.textlabel.textcolor = [uicolor graycolor];     if([[nsuserdefaults standarduserdefaults] valueforkey:selectedoption]) {         //here, how can make cell grayish in background?          //if cell.selected = true// cell shows black background color       }     return cell;     } 

if call cell.selected = true cell has black background , not looking for. @ loss should perform customization.

update : following rdelmar's answer updated cellforrowatindexpath , added customisation code

 if (myarray[indexpath.row][selectionstate] == yes){ uiview *selectioncolor = [[uiview alloc] init]; selectioncolor.backgroundcolor = [uicolor colorwithred:(200/255.0) green:(200/255.0) blue:(200/255.0) alpha:0.6]; cell.selectedbackgroundview = selectioncolor; cell.textlabel.textcolor = [uicolor graycolor];  }else{ cell.selectedbackgroundview = nil; cell.textlabel.textcolor = [uicolor blackcolor]; 

}

still didn;'r resolve issue, meaning pass verification l(selectionstate == yes, , hit code change color of background view, when displaying still unchanged.

i found method willdisplaycell, , moved code customaisation there, still didn';t work !!

- (uitableviewcell *)tableview:(uitableview *)tableview willdisplaycell:(uitableviewcell *)cell forrowatindexpath:(nsindexpath *)indexpath {  if (myarray[indexpath.row][selectionstate] == yes){     uiview *selectioncolor = [[uiview alloc] init];     selectioncolor.backgroundcolor = [uicolor colorwithred:(200/255.0) green:(200/255.0) blue:(200/255.0) alpha:0.6];     cell.selectedbackgroundview = selectioncolor; } else{     cell.selectedbackgroundview = nil;     cell.textlabel.textcolor = [uicolor blackcolor]; } return cell; } 

am supposed intercept event or method?

i'm not sure want in user defaults -- if do, you'll have somehow keep track of index in array (that supplies data cells) selected cell corresponds to.

i change structure of myarray array of dictionaries 2 keys, 1 data, , 1 selection state of cell. update value of cell state in didselectrowatindexpath , diddeselectrowatindexpath. then, in cellforrowatindexpath, check value of cell state key (lets call selectionstate):

if (myarray[indexpath.row][selectionstate] == yes){     uiview *selectioncolor = [[uiview alloc] init];     selectioncolor.backgroundcolor = [uicolor colorwithred:(200/255.0) green:(200/255.0) blue:(200/255.0) alpha:0.6];     cell.selectedbackgroundview = selectioncolor;     cell.textlabel.textcolor = [uicolor graycolor]; }else{     cell.selectedbackgroundview = nil;     cell.textlabel.textcolor = [uicolor blackcolor]; } 

of course, you'll have save array disk make cell state value persistent.