UITableView控件上的不同行为

Question

有这个控件，我真的很感激： github链接问题是，现在我有一种情况，当我需要打开一行而所有以前的那些应该关闭时，我当时只能有一个打开的行。

由于我对xcode不是很熟悉，我需要一些关于我应该从哪里开始的信息以及使代码按照我现在需要的方式工作的必要步骤。

我设法做了一些测试，但不是一个可行的解决方案，这就是我现在所拥有的：

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    [tableView deselectRowAtIndexPath:indexPath animated:YES];

    NSInteger row = indexPath.row;

    if (indexPath.section == 0) {

        NSLog(@"indexPath1 = %i", selectedRow);

        NSDictionary *d = [self.firstForTable objectAtIndex:indexPath.row];

        if([d valueForKey:@"Objects"]) {
            NSArray *ar = [d valueForKey:@"Objects"];

            NSUInteger count = indexPath.row +1;
            NSMutableArray *arCells = [NSMutableArray array];

            for(NSDictionary *dInner in ar ) {
                [arCells addObject:[NSIndexPath indexPathForRow:count inSection:0]];
                [self.firstForTable insertObject:dInner atIndex:count++];
            }

            [tableView insertRowsAtIndexPaths:arCells withRowAnimation:UITableViewRowAnimationLeft];
        }
        else {
            NSLog(@"Leave Element:::%@ %@|",[d valueForKey:@"name"],[d valueForKey:@"book"]);
        }

        if (selectedRow == row) {
            NSLog(@"selectedRow2 = %i",selectedRow);

            NSDictionary *d=[self.firstForTable objectAtIndex:selectedRow];

            if([d valueForKey:@"Objects"]) {
                NSArray *ar = [d valueForKey:@"Objects"];

                [self miniMizeFirstsRows:ar];
            }

            selectedRow = -1;
            return;
        }

        if (selectedRow >= 0) {
            NSLog(@"selectedRow3 = %i",selectedRow);

            NSDictionary *d=[self.firstForTable objectAtIndex:selectedRow];

            if([d valueForKey:@"Objects"]) {
                NSArray *ar = [d valueForKey:@"Objects"];

                [self miniMizeFirstsRows:ar];
            }

            selectedRow = row;
        }

        selectedRow = row;
        [tableView beginUpdates]; [tableView endUpdates];
    }


    if (indexPath.section == 1) {
        NSDictionary *d = [self.secondForTable objectAtIndex:indexPath.row];

        if([d valueForKey:@"Objects"]) {
            NSArray *ar = [d valueForKey:@"Objects"];
            BOOL isAlreadyInserted=NO;

            for (NSDictionary *dInner in ar) {
                NSInteger index = [self.secondForTable indexOfObjectIdenticalTo:dInner];

                isAlreadyInserted = (index > 0 && index != NSIntegerMax);
                if (isAlreadyInserted) break;
            }

            if (isAlreadyInserted) {
                [self miniMizeSecondsRows:ar];
            }
            else {
                NSUInteger count = indexPath.row+1;
                NSMutableArray *arCells = [NSMutableArray array];

                for (NSDictionary *dInner in ar ) {
                    [arCells addObject:[NSIndexPath indexPathForRow:count inSection:1]];
                    [self.secondForTable insertObject:dInner atIndex:count++];
                }

                [tableView insertRowsAtIndexPaths:arCells withRowAnimation:UITableViewRowAnimationLeft];
            }
        }
        else {
            NSLog(@"Leave Element:::%@ %@|",[d valueForKey:@"name"],[d valueForKey:@"book"]);
        }
    }
}

提前致谢。

Answer 1

更新 ： 可扩展行JSON是您的项目，自动崩溃适用于所有行。

同时检查Expandable Rows ，我分叉这个项目来帮助Novara并改进它。 现在适用于所有部分，嵌套行除外。

第一步

跟踪每个部分的打开行。 当然，这可以使用tabOpened的NSArray来完成多个部分。

@interface RootViewController : UITableViewController {
    NSInteger tabOpened_1;
    NSInteger tabOpened_2;
}

第二步

接下来初始化那些带有“-1”值的值，对于没有打开的选项卡。

- (void)viewDidLoad
{
    ........

    [self.firstForTable addObjectsFromArray:self.firstArray];
    tabOpened_1 = -1;
    [self.secondForTable addObjectsFromArray:self.secondArray];
    tabOpened_2 = -1;
}

第三步

更改didSelectRowAtIndexPath

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    [tableView deselectRowAtIndexPath:indexPath animated:YES];

        if (indexPath.section==0) {
            NSDictionary *d=[self.firstForTable objectAtIndex:indexPath.row];
            if([d valueForKey:@"produtos"]) {
                if (tabOpened_1 == -1) {
                    NSLog(@"No tab opened in first section");
                    tabOpened_1 = indexPath.row;
                } else if(tabOpened_1 != indexPath.row && tabOpened_1 > indexPath.row){
                    NSDictionary *d_ = [self.firstForTable objectAtIndex:tabOpened_1];
                    NSArray *ar_ = [d_ valueForKey:@"produtos"];
                    [self miniMizeFirstsRows:ar_];
                    tabOpened_1 = indexPath.row;
                }

                NSArray *ar=[d valueForKey:@"produtos"];
                BOOL isAlreadyInserted=NO;

                for(NSDictionary *dInner in ar ){
                    NSInteger index=[self.firstForTable indexOfObjectIdenticalTo:dInner];
                    isAlreadyInserted=(index>0 && index!=NSIntegerMax);
                    if(isAlreadyInserted) break;
                }

                if(isAlreadyInserted) {
                    [self miniMizeFirstsRows:ar];
                } else {
                    NSUInteger count=indexPath.row+1;
                    NSMutableArray *arCells=[NSMutableArray array];
                    for(NSDictionary *dInner in ar ) {
                        [arCells addObject:[NSIndexPath indexPathForRow:count inSection:0]];
                        [self.firstForTable insertObject:dInner atIndex:count++];
                    }
                    [tableView insertRowsAtIndexPaths:arCells withRowAnimation:UITableViewRowAnimationLeft];
                }

                if (tabOpened_1 == -1) {
                    NSLog(@"No tab opened in first section");
                    tabOpened_1 = indexPath.row;
                } else if(tabOpened_1 != indexPath.row && tabOpened_1 < indexPath.row){
                    NSDictionary *d_ = [self.firstForTable objectAtIndex:tabOpened_1];
                    NSArray *ar_ = [d_ valueForKey:@"produtos"];
                    [self miniMizeFirstsRows:ar_];
                    tabOpened_1 = indexPath.row - [ar_ count];
                    tabOpened_1 = (tabOpened_1 < 0) ? indexPath.row : tabOpened_1;
                }
            } else {
               NSLog(@"Leave Element:::%@ %@|",[d valueForKey:@"nome"],[d valueForKey:@"numeroConta"]);
            }
            for (int i=0; i < [[self.rowsPerSection objectAtIndex:indexPath.section] integerValue]; i++) {
                NSDictionary *d_ = [self.secondForTable objectAtIndex:i];
                NSArray *ar_ = [d_ valueForKey:@"produtos"];
                [self miniMizeSecondsRows:ar_];
            }
        }

        if (indexPath.section==1) {
            if (tabOpened_2 == -1) {
                NSLog(@"No tab opened in second section");
                tabOpened_2 = indexPath.row;
            } else if(tabOpened_2 != indexPath.row && tabOpened_2 > indexPath.row){
                NSDictionary *d_ = [self.secondForTable objectAtIndex:tabOpened_2];
                NSArray *ar_ = [d_ valueForKey:@"produtos"];
                [self miniMizeSecondsRows:ar_];
                tabOpened_2 = indexPath.row;
            }

            NSDictionary *d=[self.secondForTable objectAtIndex:indexPath.row];
            if([d valueForKey:@"produtos"]) {
                NSArray *ar=[d valueForKey:@"produtos"];

                BOOL isAlreadyInserted=NO;

                for(NSDictionary *dInner in ar ){
                    NSInteger index=[self.secondForTable indexOfObjectIdenticalTo:dInner];
                    isAlreadyInserted=(index>0 && index!=NSIntegerMax);
                    if(isAlreadyInserted) break;
                }

                if(isAlreadyInserted) {
                    [self miniMizeSecondsRows:ar];
                } else {

                    NSUInteger count=indexPath.row+1;
                    NSMutableArray *arCells=[NSMutableArray array];
                    for(NSDictionary *dInner in ar ) {
                        [arCells addObject:[NSIndexPath indexPathForRow:count inSection:1]];
                        [self.secondForTable insertObject:dInner atIndex:count++];
                    }
                    [tableView insertRowsAtIndexPaths:arCells withRowAnimation:UITableViewRowAnimationLeft];
                }

                if (tabOpened_2 == -1) {
                    NSLog(@"No tab opened in second section");
                    tabOpened_2 = indexPath.row;
                } else if(tabOpened_2 != indexPath.row && tabOpened_2 < indexPath.row){
                    NSDictionary *d_ = [self.secondForTable objectAtIndex:tabOpened_2];
                    NSArray *ar_ = [d_ valueForKey:@"produtos"];
                    [self miniMizeSecondsRows:ar_];
                    tabOpened_2 = indexPath.row - [ar_ count];
                    tabOpened_2 = (tabOpened_2 < 0) ? indexPath.row : tabOpened_2;
                }
            } else {
                //NSLog(@"Leave Element:::%@ %@|",[d valueForKey:@"nome"],[d valueForKey:@"book"]);
            }

            for (int i=0; i < [[self.rowsPerSection objectAtIndex:indexPath.section] integerValue]; i++) {
                NSDictionary *d_ = [self.firstForTable objectAtIndex:i];
                NSArray *ar_ = [d_ valueForKey:@"produtos"];
                [self miniMizeFirstsRows:ar_];
            }
        }
}

Answer 2

你真的有必要使用你提到的控制吗？ 如果没有，我可以建议你另一个控制。

它是开源的，可以在github上找到https://github.com/Augustyniak/RATreeView 。 RATreeView是由我编写的（从您编写的内容）它具有您需要的功能。 它的公共API基于UITableView，因此使用起来非常简单。 它具有相当广泛的文档，可以让您获得所有需要的信息。 链接的github的存储库包含示例项目，该项目准确显示如何在您自己的项目中开始使用它。

如果你开始使用它并有一些问题，请问。