（自定义）UITableViewCell在滚动后混音 [英] (custom) UITableViewCell's mixing up after scrolling

问题描述

我已经解决了这个问题几周了。

Ive been on this problem for a few weeks now.

基本上当我在TableView中向上/向下滚动时，thar使用IB中设计的自定义单元格所有内容混乱和错位

Basically when i scroll up/down within a TableView thar uses a Custom Cell designed in IB all the content gets mixed up and misplaced

我尝试了多种解决方案，但无济于事，你将不得不原谅我的代码。

Ive tried multiple solutions but to no avail, your gonna have to excuse my code a little bit.

人们一直建议为表格单元格制作一个子视图，但我不知道如何做到这一点= /仍然是iOS开发的新手，所以如果你有一个可能的答案，你能尽可能详细说明吗。

People keep suggesting to make a subView for the table cell but i have no idea how to do that =/ still quite new to iOS development so if you have a possible answer, can you detail it as much as possible please.

再一次，抱歉我的代码= /

Once again, sorry for my code =/

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *MyIdentifier = @"MyIdentifier";
    UITableViewCell *cell = [self.tableView dequeueReusableCellWithIdentifier:MyIdentifier];

    NSInteger intCellTag;

    NSDictionary *dictionary = [[[self.tableDataSource objectAtIndex: indexPath.section] objectForKey: @"Rows"] objectAtIndex: indexPath.row];


    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:MyIdentifier] autorelease];


        [[[NSBundle mainBundle] loadNibNamed:@"EventsCustomTVCell" owner:self options:nil] lastObject];
        cell = tvCell;
        self.tvCell = nil;


        cell.textLabel.backgroundColor = [UIColor clearColor];
        cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;

        cell.tag = intCellTag;


        intCellTag++;

        UIImage *customCellBG = [UIImage imageNamed:@"EventsCustomTableCellBG.png"];
        UIImageView *customCellBGImageView = [[UIImageView alloc] initWithImage: customCellBG];
        customCellBGImageView.contentMode = UIViewContentModeScaleToFill;
        cell.backgroundView = customCellBGImageView;
        [customCellBGImageView release];




        [cell.contentView addSubview:imgThumbnail];
        [cell.contentView addSubview:lblName];
        [cell.contentView addSubview:lblDescription];
        [cell.contentView addSubview:lblDate];

    }



    imgThumbnail.image = [UIImage imageNamed:[dictionary objectForKey: @"Thumbnail"]];
    lblName.text = [dictionary objectForKey:@"Title"];
    lblDescription.text = [dictionary objectForKey:@"Description"];
    lblDate.text = [dictionary objectForKey:@"Date"];


    return cell;


}

推荐答案

看起来你正试图在定义每个UITableViewCell时混合隐喻 - 从.xib加载，并手动创建子视图。这当然没有错，但是您可以将图像和标签直接放入tableviewCell，如下所示：

It looks like you're trying to mix metaphors in defining each UITableViewCell -- loading from .xib, and creating subviews manually. Nothing wrong with this of course, but you could put the image and labels into the tableviewCell directly, like this:

这里是显示每一行的代码（当然在IB中你已经指定了非每个UIKit对象的-zero唯一标记，您希望按行自定义）

and here's the code to display each row (naturally in IB you've assigned non-zero unique tags to each UIKit object you want to customize on a per-row basis)

#define kImageTag 1
#define kLabel1Tag 2
#define kLabel2Tag 3
#define kLabel3Tag 4

// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *CellIdentifier = @"MyTvCell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) 
    {
        self.tvCell = nil;
        [[NSBundle mainBundle] loadNibNamed:@"TvCell" owner:self options:nil];
        cell = self.tvCell;
    }

    UIImageView *iv =  (UIImageView *) [cell viewWithTag:kImageTag];
    UILabel *lbl1 = (UILabel *) [cell viewWithTag:kLabel1Tag];
    UILabel *lbl2 = (UILabel *) [cell viewWithTag:kLabel2Tag];
    UILabel *lbl3 = (UILabel *) [cell viewWithTag:kLabel3Tag];

    iv.image = [UIImage imageNamed:@"myimage.png"];
    lbl1.text = @"howdy";
    lbl2.text = @"there";
    lbl3.text = @"foo";

    return cell;
}

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