Question

我有一个包含多个单元格的表格，每个单元格都有一个UIButton。当我单击该按钮时，按钮单元格背景颜色应该更改。这是我的部分代码供您理解。

当我点击此按钮时，我的所有tableview单元格背景颜色都会发生变化。如何只为选定的单元格做？

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    static NSString *simpleTableIdentifier = @"SimpleTableCell";

    cell = (MenuCell *)[menuTableview dequeueReusableCellWithIdentifier:simpleTableIdentifier];

    if (cell == nil) {
        NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"MenuViewCell" owner:self options:nil];
        cell = [nib objectAtIndex:0];

        [cell initState];

        // Listens for method calls on cell
        cell.delegate = self;
    }

    if ((self.TempArray.count != 0)) {
        for (int i=0; i<TempArray.count; i++) {
            if ([self.TableviewArray objectAtIndex:indexPath.row] == TempArray[i]) {
                if (cell.backgroundColor != [UIColor lightGrayColor]) {
                    cell.backgroundColor = [UIColor lightGrayColor];
                }

                UIButton *button=[UIButton buttonWithType:UIButtonTypeRoundedRect];
                button.tag=indexPath.row;
                [button addTarget:self action:@selector(aMethod:) forControlEvents:UIControlEventTouchDown];
                [button setTitle:@"UnHide" forState:UIControlStateNormal];
                button.frame = CGRectMake(200.0, 20.0, 160.0, 40.0);
                [cell.contentView addSubview:button];
            }
        }
    }

    // Set index for this cell (it could be wrong if cell is re-used)
    cell.downloadIndex = (int)indexPath.row;

    Download *download = [TableviewArray objectAtIndex:indexPath.row];

    cell.downloading = download.downloading;
    cell.completed = download.completed;
    cell.MenuLang.text = download.name;
    cell.downLoadPrgView.progress = download.percentageDownloaded;

    // Check for completed status
    cell.completed = download.completed;
    cell.CompletedMenuLang.text = download.name;

    return cell;
}

-(void)aMethod:(UIButton*)sender {
    NSLog(@"I Clicked a button %d",sender.tag);
    int row = sender.tag;
}

Answer 1

tableView.rowHeight = UITableViewAutomaticDimension

使用此单元格的索引路径进行更改

Answer 2

这是我的回答..

-(void)aMethod:(UIButton*)sender
{
    NSLog(@"I Clicked a button %d",sender.tag);



    int row = sender.tag;

    NSIndexPath *path = [NSIndexPath indexPathForRow:row inSection:0];


    UITableViewCell *cell = [menuTableview cellForRowAtIndexPath:path];
    cell.contentView.backgroundColor = [UIColor whiteColor];
}

Answer 3

只需实现下面的代码，您就可以更改特定单元格的背景颜色以及隐藏所选按钮。

-(void)aMethod:(UIButton*)sender {
    NSIndexPath *indexPath = [NSIndexPath indexPathForRow:sender.tag inSection:0];
    Friends1TableViewCell *cell = (Friends1TableViewCell *)[self.tblVW cellForRowAtIndexPath:indexPath];
    cell.backgroundColor = [UIColor redColor];
    sender.hidden = YES;
}

Answer 4

试试这个

@property (nonatomic, assign) NSInteger selectedRow;

self.selectedRow = -1;          // init with -1


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

    // ...

    if(self.selectedRow == indexPath.row) {
        cell.backgroundColor = SELECTED_COLOR;
    }
    else {
        cell.backgroundColor = NORMAL_COLOR;
    }

    return cell;
}

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

    // ...

    self.selectedRow = row;
    [self.myTableView reloadData];
}

更改iOS中特定索引单元格的背景颜色

4 个答案: