uitableview delete button image in iOS

I want to change swipe button image of uitableview cell. I have searched for it but I am not get desired result. I have used this code:

- (void)willTransitionToState:(UITableViewCellStateMask)state{
    [super willTransitionToState:state];
    if ((state & UITableViewCellStateShowingDeleteConfirmationMask) == UITableViewCellStateShowingDeleteConfirmationMask) {
        for (UIView *subview in self.subviews) {
            if ([NSStringFromClass([subview class]) isEqualToString:@"UITableViewCellDeleteConfirmationControl"]) {
                UIImageView *deleteBtn = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 64, 33)];
                [deleteBtn setImage:[UIImage imageNamed:@"delete.png"]];
                [[subview.subviews objectAtIndex:0] addSubview:deleteBtn];

            }
        }
    }
}

But this is not working in iOS 9. Please suggest me how to achieve this in iOS 9.

If I used this code then its working but image is not set properly:

[[UIButton
      appearanceWhenContainedIn:[TableViewCell class], nil]
     setImage:[UIImage imageNamed:@"Delete-notification.png"] forState:UIControlStateNormal];


-(NSArray *)tableView:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath {
 UITableViewRowAction *button = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"Button 1" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath)
    {
        NSLog(@"Action to perform with Button 1");
    }];


    return @[button];
}

]1

Thanks in advance!