ios - 带有空数组的 UITableView reloadData

Question

我正在删除 UITableView 中的所有项目。因此，我从中加载 UITableView 的数组的计数 = 0。删除数组中的最后一项后，在重新加载表时，我在 numberofRowInSection 处收到错误。

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {

    return [arrProjects count];
}  


- (void)tableView:(UITableView *)aTableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSLog(@"");
    if (editingStyle == UITableViewCellEditingStyleDelete)
    {
        [tableProject beginUpdates];
    Project *project = [arrProjects objectAtIndex:indexPath.row];
    [[CommonModel shared]DeleteProjectDetails:project.ProjectId];
    [arrProjects removeObject:project];
    [self reloadTableProject:YES];
    [tableProject endUpdates];
    }

}  


-(void) reloadTableProject:(BOOL)isReloadRequired
{
    //[arrProjects removeAllObjects];
    arrProjects = [[CommonModel shared]GetAllProjects];

    if(isReloadRequired)
        [tableProject reloadData];
}

这是错误:

'Invalid update: invalid number of rows in section 0. The number of rows contained in an existing section after the update (1) must be equal to the number of rows contained in that section before the update (2), plus or minus the number of rows inserted or deleted from that section (0 inserted, 0 deleted) and plus or minus the number of rows moved into or out of that section (0 moved in, 0 moved out).'

我每次都会收到这个错误，不仅仅是当数组为空时。

Answer 1

设置:

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return [_datasourceArray count];
}

要清空您的 TableView，请执行:

[_datasourceArray removeAllObjects];
[_tableView reloadData];