自定义单元格未出现在表格视图中 [英] custom cell not appear in tableview

问题描述

我使用故事板.我为我的 Cell 创建了新类，在故事板中我用重用标识符userFullCell"编写.我的 Cell 类 .h

I use storyboards. I create new class for my Cell, in storyboard I write in Reuse Identifier "userFullCell". My Cell class .h

#import <UIKit/UIKit.h>

@interface UsefullLinksCell : UITableViewCell

@property (weak, nonatomic) IBOutlet UIImageView *image;
@property (weak, nonatomic) IBOutlet UILabel *shortTitle;

@end

.m 默认

#import "UsefullLinksCell.h"

@implementation UsefullLinksCell

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
  self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
  if (self) {
    // Initialization code
}
return self;
}

- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
  [super setSelected:selected animated:animated];

// Configure the view for the selected state
}

property image 和 shortTitle 在情节提要中与 UILabel 和 UIImageView 连接在 Cell 中

property image and shortTitle connected in storyboard with UILabel and UIImageView in Cell

然后在我的 UITableView 类中我导入UseFullLinksCell.h"并在 viewDidLoad 中写道:

Then in my class with UITableView I import "UseFullLinksCell.h" and in viewDidLoad wrote:

[self.tableView registerClass:[UsefullLinksCell class] forCellReuseIdentifier:@"userFullCell"];

tableView 是我的出口:

tableView is my outlet:

@property (weak, nonatomic) IBOutlet UITableView *tableView;

然后我尝试创建单元格:

and then I try to create cells:

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:  (NSIndexPath *)indexPath
{
  static NSString *CellIdentifier = @"userFullCell";
  UsefullLinksCell *cell = (UsefullLinksCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
  NSDictionary *info = resourceArray[indexPath.row];
  if(info){
    cell.image.image = info[@"logo"];
    cell.shortTitle.text = info[@"title"];
  }
  return cell;
}

因此，单元格初始化，但未分配图像和文本，并且在方法结束后为单元格返回 0x0000000.如果我用这种方法为标准单元格代码创建，我的意思是 UITableViewCell *cell，一切都很好.我哪里会出错?PS 抱歉我不能提供故事板的截图，因为我不是用我的电脑写的，如果你想要，我稍后提供图片

So, cell initialize, but image and text not assigned, and after going end of method return 0x0000000 for cell. If I create for standart cell code in this method, I mean UITableViewCell *cell, there is all good. Where I could make mistake? PS Sorry I can not give screenshots from storyboard, because I write from not my computer, if you want, I provide images later

推荐答案

您应该注册您制作自定义单元格的 xib 文件(使用 registerNib:forCellReuseIdentifier:)，而不是类.另外，我不知道这是否会有所作为，但请替换:

You should register the xib file (with registerNib:forCellReuseIdentifier:) where you made your custom cell, not the class. Also, I don't know if this will make a difference or not, but replace this:

UsefullLinksCell *cell = (UsefullLinksCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];

有了这个(注意方法末尾的 forIndexPath:):

With this (notice the forIndexPath: at the end of the method):

UsefullLinksCell *cell = (UsefullLinksCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];

编辑后:

如果在情节提要中的表格视图中添加了一个自定义单元格，并为其指定了标识符userFullCell"，那么您不需要注册任何东西——事实上，注册您的类使其不起作用.所以，只需注释掉那个 register 语句，看看它是否有效.

If added a custom cell to your table view in the storyboard, and gave it the identifier "userFullCell", then you don't need to register anything -- in fact, registering your class makes it not work. So, just comment out that register statement, and see if that works.

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