ios - 滚动后tableview内的数据混淆了

我已经阅读了很多问题并尝试了解决方案，但我的 tableview 仍然无法解决问题。

滚动后，tableview 的行中的数据会互换，有时会丢失。

这是我的代码:

- (UITableViewCell *)tableViewUITableView *)tableView cellForRowAtIndexPathNSIndexPath *)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" withValuebj];

            [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 AndIDptnTag AndTitleptn];
                        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 selectorselector(checkBoxViewChangedState];
                        [checkBox setText""];
                        [checkBox setTextptn];

                        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;

}

---

Best Answer-推荐答案

问题是您的单元格正在被重复使用。所以滚动时行会互换。

在 if (cell == nil) 之外设置单元格内容。

- (UITableViewCell *)tableViewUITableView *)tableView cellForRowAtIndexPathNSIndexPath *)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"withValuebj];

            [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 AndIDptnTag AndTitleptn];
                        rb1.delegate =  self ；

                        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 setTextptn];

                        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；

}

关于ios - 滚动后tableview内的数据混淆了，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/18777530/