tableview - Table View: right to left swipe to delete does not show up - swift 3 -

i've built simple todolist app swift 3. want able delete items tableview swiping right left. code i've found. nothing happens when swipe left.

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code:

func tableview(_ tableview: uitableview, numberofrowsinsection section: int) -> int{      return todolist.count }  func tableview(_ tableview: uitableview, caneditrowat indexpath: indexpath) -> bool {     return true }  func tableview(_ tableview: uitableview, cellforrowatindexpath indexpath: indexpath) -> uitableviewcell {      let cell = uitableviewcell(style: uitableviewcellstyle.default, reuseidentifier: "cell")      cell.textlabel?.text = todolist[indexpath.row]      return cell }    // func tableview(_ tableview: uitableview, commit editingstyle: uitableviewcelleditingstyle, forrowat indexpath: indexpath) {     if (editingstyle == .delete) {         todolist.remove(at: indexpath.row)          userdefaults.standard.set(todolist, forkey: "todolist")         tableview.reloaddata()     } }  func tableview(_ tableview: uitableview, editingstyleforrowat indexpath: indexpath) -> uitableviewcelleditingstyle {     return .delete } 

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this still not work. nothing happens when swipe left. list working. can add items table can't remove them.

thanks :)

did implement tableview:caneditrowatindexpath: method?

p.s: swift 3.

func tableview(_ tableview: uitableview, caneditrowat indexpath: indexpath) -> bool {     return true   } 

edit:

thanks @rmaddy mintioning default value of tableview:caneditrowatindexpath: true, implementing doesn't solve problem.

i'm not pretty sure of trying code snippet, make sure implementing following methods (uitableviewdelegate):

func tableview(_ tableview: uitableview, commit editingstyle: uitableviewcelleditingstyle, forrowat indexpath: indexpath) {     if (editingstyle == .delete) {         todolist.remove(at: indexpath.row)          userdefaults.standard.set(todolist, forkey: "todolist")         tableview.reloaddata()     } }  func tableview(_ tableview: uitableview, editingstyleforrowat indexpath: indexpath) -> uitableviewcelleditingstyle {     return .delete } 

you can keep implementation of tableview:caneditrowatindexpath: method:

asks data source verify given row editable.

so, -for example- if want let first row not editable, i.e user cannot swipe , delete first row, should somthing like:

func tableview(_ tableview: uitableview, caneditrowat indexpath: indexpath) -> bool {     if indexpath.row == 0 {         return false     }      return true } 

also, make sure uitableviewdatasource , uitableviewdelegate connected viewcontroller.

hope helped.