UIExpandableTableView

UIExpandableTableView is a UITableView subclass that gives you easy access to expandable and collapsable sections by just implementing a few more delegate and dataSource protocols.

How to use UIExpandableTableView

• Load the UIExpandableTableView in a UITableViewController

- (void)loadView {
    self.tableView = [[UIExpandableTableView alloc] initWithFrame:CGRectZero style:UITableViewStylePlain];
}

• Implement the UIExpandableTableViewDatasource protocol

- (BOOL)tableView:(UIExpandableTableView *)tableView canExpandSection:(NSInteger)section {
    // return YES, if the section should be expandable
}

- (BOOL)tableView:(UIExpandableTableView *)tableView needsToDownloadDataForExpandableSection:(NSInteger)section {
    // return YES, if you need to download data to expand this section. tableView will call tableView:downloadDataForExpandableSection: for this section
}

- (UITableViewCell<UIExpandingTableViewCell> *)tableView:(UIExpandableTableView *)tableView expandingCellForSection:(NSInteger)section {
    // this cell will be displayed at IndexPath with section: section and row 0
}

• Implement the UIExpandableTableViewDelegate protocol

- (void)tableView:(UIExpandableTableView *)tableView downloadDataForExpandableSection:(NSInteger)section {
    // download your data here
    // call [tableView expandSection:section animated:YES]; if download was successful
    // call [tableView cancelDownloadInSection:section]; if your download was NOT successful
}

- (void)tableView:(UIExpandableTableView *)tableView didExpandSection:(NSUInteger)section
{
  //...
}

- (void)tableView:(UIExpandableTableView *)tableView didCollapseSection:(NSUInteger)section
{
  //...
}

Sample Screenshots