2

我已经阅读了很多问题并尝试了解决方案，但我仍然无法用tableview.

滚动后，tableview 行中的数据被互换，有时甚至丢失。

这是我的代码：

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

    BGMModifierCheckCell *cell = nil;
    cell = (BGMModifierCheckCell *)[tableView dequeueReusableCellWithIdentifier:modifierCheckCell];

    if (cell == nil) {

        NSArray* topLevelObjects = [[NSBundle mainBundle] loadNibNamed:modifierCheckCell owner:self options:nil];
        for (id currentObject in topLevelObjects) {
            if ([currentObject isKindOfClass:[UITableViewCell class]]) {
                cell = (BGMModifierCheckCell *)currentObject;
                break;
            }
        }


        cell.selectionStyle = UITableViewCellSelectionStyleNone;

        NSArray *optionIds = [[[arrayInsideDict objectAtIndex:indexPath.section] objectForKey:@"optnItem"] objectAtIndex:indexPath.row];

        BGMOptnCats *optnCat = [BGMOptnCats MR_findFirstByAttribute:@"iOptnCatId" withValue:[[arrayInsideDict objectAtIndex:indexPath.section] objectForKey:@"optnCatId"]];

        [optionIds enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {

            __block int optnTag = [obj intValue];

            BGMItemDayOptns *item = [BGMItemDayOptns MR_findFirstByAttribute:@"iItemDayOptnId" withValue:obj];

            [item.optns.optnLangs enumerateObjectsUsingBlock:^(id obj, BOOL *stop) {

                BGMOptnLangs *lang = (BGMOptnLangs *)obj;

                if ([lang.sLangCode isEqualToString:@"en"]) {

                    NSString *optn = [NSString stringWithFormat:@"%@", lang.sOptnName];

                    if ([optnCat.sOptnType isEqualToString:@"single"]) {

                        RadioButton *rb1                   = [[RadioButton alloc] initWithFrame:CGRectMake(0, 0, 200, 40)];
                        [rb1 setGroupID:indexPath.section AndID:optnTag AndTitle:optn];
                        rb1.delegate                    = self;

                        if (idx == 0) {

                            [cell.firstOption addSubview:rb1];

                        } else if (idx == 1) {

                            [cell.secondOption addSubview:rb1];

                        } else if (idx == 2) {

                            [cell.thirdOption addSubview:rb1];

                        }


                    } else if ([optnCat.sOptnType isEqualToString:@"multiple"]) {

                        SSCheckBoxView *checkBox = [[SSCheckBoxView alloc] initWithFrame:CGRectMake(0, 0, 200, 40) style:kSSCheckBoxViewStyleMono checked:NO];
                        checkBox.tag = optnTag;
                        [checkBox setStateChangedTarget:self selector:@selector(checkBoxViewChangedState:)];
                        [checkBox setText:@""];
                        [checkBox setText:optn];

                        if (idx == 0) {

                            [cell.firstOption addSubview:checkBox];

                        } else if (idx == 1) {

                            [cell.secondOption addSubview:checkBox];

                        } else if (idx == 2) {

                            [cell.thirdOption addSubview:checkBox];

                        }


                    }

                }

            }];

        }];

    }

    return cell;

}
4

2 回答 2

1

问题是您的细胞正在被重复使用。所以滚动时行会互换。

在 if (cell == nil) 之外设置单元格内容。

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    静态 NSString *modifierCheckCell = @"BGMModifierCheckCell";

    BGMModifierCheckCell *cell = nil;
    cell = (BGMModifierCheckCell *)[tableView dequeueReusableCellWithIdentifier:modifierCheckCell];

    如果（细胞 == 零）{

        NSArray* topLevelObjects = [[NSBundle mainBundle] loadNibNamed:modifierCheckCell owner:self options:nil];
        for (id currentObject in topLevelObjects) {
            if ([currentObject isKindOfClass:[UITableViewCell 类]]) {
                单元格 = (BGMModifierCheckCell *)currentObject;
                休息;
            }
        }
     }


        cell.selectionStyle = UITableViewCellSelectionStyleNone;

        NSArray *optionIds = [[[arrayInsideDict objectAtIndex:indexPath.section] objectForKey:@"optnItem"] objectAtIndex:indexPath.row];

        BGMOptnCats *optnCat = [BGMOptnCats MR_findFirstByAttribute:@"iOptnCatId" withValue:[[arrayInsideDict objectAtIndex:indexPath.section] objectForKey:@"optnCatId"]];

        [optionIds enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {

            __block int optnTag = [obj intValue];

            BGMItemDayOptns *item = [BGMItemDayOptns MR_findFirstByAttribute:@"iItemDayOptnId" withValue:obj];

            [item.optns.optnLangs enumerateObjectsUsingBlock:^(id obj, BOOL *stop) {

                BGMOptnLangs *lang = (BGMOptnLangs *)obj;

                if ([lang.sLangCode isEqualToString:@"en"]) {

                    NSString *optn = [NSString stringWithFormat:@"%@", lang.sOptnName];

                    if ([optnCat.sOptnType isEqualToString:@"single"]) {

                        RadioButton *rb1 = [[RadioButton alloc] initWithFrame:CGRectMake(0, 0, 200, 40)];
                        [rb1 setGroupID:indexPath.section AndID:optnTag AndTitle:optn];
                        rb1.delegate = 自我；

                        如果（idx == 0）{

                            [cell.firstOption addSubview:rb1];

                        } else if (idx == 1) {

                            [cell.secondOption addSubview:rb1];

                        } else if (idx == 2) {

                            [cell.thirdOption addSubview:rb1];

                        }


                    } else if ([optnCat.sOptnType isEqualToString:@"multiple"]) {

                        SSCheckBoxView *checkBox = [[SSCheckBoxView alloc] initWithFrame:CGRectMake(0, 0, 200, 40) 样式:kSSCheckBoxViewStyleMono 选中:NO];
                        checkBox.tag = optnTag;
                        [checkBox setStateChangedTarget:self 选择器:@selector(checkBoxViewChangedState:)];
                        [复选框 setText:@""];
                        [复选框 setText:optn];

                        如果（idx == 0）{

                            [cell.firstOption addSubview:checkBox];

                        } else if (idx == 1) {

                            [cell.secondOption addSubview:checkBox];

                        } else if (idx == 2) {

                            [cell.thirdOption addSubview:checkBox];

                        }


                    }

                }

            }];

        }];

    返回单元格；

}
于 2013-09-13T04:48:06.863 回答
0

您需要删除您的子视图，因为每次调用 CellForRowAtIndexpath 时它都会创建一个子视图，因此在添加新子视图之前删除前一个

for (UIView *view in cell.contentView.subviews) {
                    [view removeFromSuperview];
                }
于 2013-09-13T07:00:24.670 回答