ios - 将按钮添加到单元格

Question

我有一个 UITableCell 的子类，到目前为止，这是我的代码：

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
    if (self) {            

        voteCount = [[UILabel alloc] initWithFrame:CGRectMake(self.frame.size.width/2, 10, 10, self.frame.size.height)];
        voteCount.text = @"24";
        [self.contentView addSubview:voteCount];         

        upVote = [[UIButton alloc] initWithFrame:CGRectMake(self.frame.size.width/3, 0, 20 , self.frame.size.height)];
        upVote.titleLabel.text = @"vote";
        [self.contentView addSubview:upVote];

    }
    return self;
}

标签显示，但按钮不显示。我究竟做错了什么？

Answer 1

使用下面的代码..

    - (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
    {
        self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
        if (self) {   

         //For UILabel
            voteCount = [[UILabel alloc] initWithFrame:CGRectMake(self.frame.size.width/2, 10, 10, self.frame.size.height)];
            voteCount.text = @"24";
            [self.contentView addSubview:voteCount]; 

        //For UIButton

        upVote = [UIButton buttonWithType:UIButtonTypeRoundedRect];
        [upVote addTarget:self 
           action:@selector(aMethod:)
        forControlEvents:UIControlEventTouchUpInside];
        [upVote setTitle:@"Title" forState:UIControlStateNormal];
        upVote.frame = CGRectMake(20.0, 10.0, 60.0, 60.0);//set your coordinates
        [self.contentView addSubview:upVote];

        }
        return self;
    }

它会工作..

Answer 2

你需要使用[UIButton +buttonWithType:].

你还需要使用[UIButton -setTitle:forState:]，而不是仅仅设置它的文本titleLabel。