Ios Like&Comment按钮，然后将其保存到parse

有人知道如何在tableview页脚下实现这些按钮，然后保存并检索以进行解析吗

- (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section
{
    NSString *cellidentifier=@"footer";
    UITableViewCell *footer = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    UIView* FView = [[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, 320.0, 100.0)];
    UIButton *like = (UIButton *)[footer viewWithTag:1];
    [button addTarget:self action:@selector(buttonwastapped:) forControlEvents:UIControlEventTouchUpInside];
    [FView addSubview:self.like];
    return [FView autorelease];
}

- (void)buttonwastapped:(UIButton*)sender
   {

    PFUser *user = [PFUser currentUser];
    PFRelation *relation = [user relationForKey:@"likes"];
    [relation addObject:post];
    [user saveInBackground];

} //i try to use that but nothing happened 

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如果要将按钮添加到节的页脚视图，请在视图中为页脚创建类似按钮或注释的按钮，然后添加目标。你的按钮似乎在别的地方。无法检索uitableview单元格。以下是示例代码：

- (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section
{

    UIView* FView = [[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, 320.0, 100.0)];
    UIButton *likeBtn = [UIButton buttonWithType:UIButtonTypeCustom];
    likeBtn.frame = CGRectMake(0, 0, 30, 40); // set your btn frame
    [likeBtn addTarget:self action:@selector(buttonwastapped:) forControlEvents:UIControlEventTouchUpInside];
    [FView addSubView:likeBtn];

    return [FView autorelease];
}

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按钮在页脚吗？如果是这样的话，按钮是否已被设置：当按钮被选择时被调用？是的，它正在被调用