iOS设置UITableView中Cell被默认选中后怎么触发didselect事件

//默认选中某个cell

[self.searchResultTV selectRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:0] animated:YES scrollPosition:UITableViewScrollPositionNone];

//实现该cell的didSelectRowAtIndexPath方法

NSIndexPath *indexPath = [NSIndexPath indexPathForRow:0 inSection:0];

if ([self.searchResultTV.delegate respondsToSelector:@selector(tableView:willSelectRowAtIndexPath:)]) {

[self.searchResultTV.delegate tableView:self.searchResultTV willSelectRowAtIndexPath:indexPath];

}

[self.searchResultTV selectRowAtIndexPath:indexPath animated:YES scrollPosition: UITableViewScrollPositionNone];

if ([self.searchResultTV.delegate respondsToSelector:@selector(tableView:didSelectRowAtIndexPath:)]) {

[self.searchResultTV.delegate tableView:self.searchResultTV didSelectRowAtIndexPath:indexPath];

}