Objective c 单行选择-UITableView

下午好

我试图在UITableView中选择一行来部署我的应用程序，但当我选择另一行时，前一行不清楚。我用图像来表示线条的选择。我试图让每个用户的选择表行保留取消选择的图像，但没有成功

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

    static NSString *EditCellIdentifier = @"EditCell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:EditCellIdentifier];

    if (cell == nil) {

        cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:EditCellIdentifier] autorelease];

        UILabel *label = [[UILabel alloc] initWithFrame:kLabelRect];
        label.tag = kCellLabelTag;
        [cell.contentView addSubview:label];
        [label release];

        UIImageView *imageView = [[UIImageView alloc] initWithImage:unselectedImage];
        imageView.frame = CGRectMake(5.0, 10.0, 23.0, 23.0);
        [cell.contentView addSubview:imageView];
        imageView.hidden = !inPseudoEditMode;
        imageView.tag = kCellImageViewTag;
        [imageView release];
    }

    [UIView beginAnimations:@"cell shift" context:nil];

    UIImageView *imageView = (UIImageView *)[cell.contentView viewWithTag:kCellImageViewTag];
    NSNumber *selected = [selectedArray objectAtIndex:[indexPath row]];
    imageView.image = ([selected boolValue]) ? selectedImage : unselectedImage;
    imageView.hidden = !inPseudoEditMode;
    [UIView commitAnimations];

    UILabel *label = (UILabel *)[cell.contentView viewWithTag:kCellLabelTag];
    label.text =[listOfItems objectAtIndex:[indexPath row]];
    label.frame = (inPseudoEditMode) ? kLabelIndentedRect : kLabelRect;
    label.opaque = NO;

    return cell;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

[tv deselectRowAtIndexPath:indexPath animated:YES];

    if (inPseudoEditMode) {

        BOOL selected = [[selectedArray objectAtIndex:[indexPath row]] boolValue];
        [selectedArray replaceObjectAtIndex:[indexPath row] withObject:[NSNumber numberWithBool:!selected]];
        [tv reloadData];
    }
}

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我猜您希望一次只允许选择一行

以下是我在

表视图：didselectrowatinexpath:

中的建议：

将所有行标记为未选中：

for (int i = 0; i < [selectedArray count]; i++) {
    [selectedArray replaceObjectAtIndex:i withObject:[NSNumber numberWithBool:NO]];
}

[selectedArray replaceObjectAtIndex:[indexPath row] withObject:[NSNumber numberWithBool:YES]];

或者，在相同的for循环中执行所有操作：

for (int i = 0; i < [selectedArray count]; i++) {
    NSNumber rowSelected = [NSNumber numberWithBool:(indexPath.row == i)];
    [selectedArray replaceObjectAtIndex:i withObject:rowSelected];
}

for（int i=0；i<[selectedArray count]；i++）{
NSNumber rowSelected=[NSNumber numberWithBool:（indexPath.row==i）]；
[selectedArray replaceObjectAtIndex:i with Object:rowSelected]；
}

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希望这就是你想要的

我使用的最短路径

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for（int i=0；i<[selectedArray count]；i++）{
[selectedArray replaceObjectAtIndex:i with Object:[NSNumber numberWithBool:i==indexath.row？是：否]]；
}

---

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这里是晚上，晚上好。感谢您的及时合作，这正是我们需要的。如果这对您有帮助，请向上投票/打分作为答案。我们都在努力通过帮助建立声誉。标记答案也有助于遇到相同问题的其他人，以便他们确切地知道什么对你有用。

for (int i = 0; i < [selectedArray count]; i++) {
    [selectedArray replaceObjectAtIndex:i withObject:[NSNumber numberWithBool:i==indexpath.row?YES:NO]];
}