The problem of UITableView dividing line short in iOS8

In IOS8, you will find that the split line is not all displayed by default, and the code that is applicable in iOS7

if ([Self.mycardtableview respondstoselector: @selector (separatorinset)]) {        = uiedgeinsetszero;    }

It doesn't work anymore. And to add the code in the Viewdidload

if ([Self.mycardtableview respondstoselector: @selector (setlayoutmargins:)]) {                [Self.mycardtableview Setlayoutmargins:uiedgeinsetszero];            }

and join the UITableView proxy method

-(void) TableView: (UITableView *) TableView Willdisplaycell: (UITableViewCell *) cell Forrowatindexpath: ( Nsindexpath *) indexpath{        if  ([Cell Respondstoselector: @selector (setseparatorinset:)]) {                [Cell Setseparatorinset:uiedgeinsetszero];            }         if ([Cell Respondstoselector: @selector (setlayoutmargins:)]) {                [cell Setlayoutmargins:uiedgeinsetszero];            }    }

The problem of UITableView dividing line short in iOS8