multiLevelUITableView

a multilevel table view example showing the tree with its branches

SCREENSHOT

#pragma mark - Table View Delegate -(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{

NSDictionary *dic = _objects[indexPath.row];

NSInteger indentLevel = [_objects[indexPath.row][keyIndent] integerValue]; //indentLevel of the selected cell
NSArray *indentArray = [_objects valueForKey:keyIndent]; //array of indents which are currently show on table

BOOL indentChek = [indentArray containsObject:[NSNumber numberWithInteger:indentLevel]]; // check if  selected
BOOL isChildrenAlreadyInserted = [_objects containsObject:dic[keyChildren]]; //checking contains children


for(NSDictionary *dicChildren in dic[keyChildren]){
    
    NSInteger index=[_objects indexOfObjectIdenticalTo:dicChildren];
    
    isChildrenAlreadyInserted=(index>0 && index!=NSIntegerMax); //checking contains children
    
    if(isChildrenAlreadyInserted) break;
    
}


if ( indentChek &&  isChildrenAlreadyInserted) {
    
    //all children from this category will be deleted
    [self miniMizeThisRows:_objects[indexPath.row][keyChildren] forTable:tableView withIndexpath:indexPath];
    
}
else if ([dic[keyChildren] count]) { //insert the children if contains
    
    NSMutableArray *ipsArray = [NSMutableArray new];
    NSArray *childArray = dic[keyChildren];
    
    NSInteger count = indexPath.row + 1;
    
    for (int i = 0; i < [dic[keyChildren] count]; i++,count++) {
        
        NSIndexPath *ip = [NSIndexPath indexPathForRow:count inSection:indexPath.section];
        [ipsArray addObject:ip];
        [_objects insertObject:childArray[i] atIndex:count];
        
    }
    
    [self.tableView beginUpdates];
    [self.tableView insertRowsAtIndexPaths:ipsArray withRowAnimation:UITableViewRowAnimationLeft];
    [self.tableView endUpdates];
    
    
}else{ //the junior most children will navigate
    
    [self performSegueWithIdentifier:@"showDetail" sender:indexPath];
}


}

/this method will check the category with its children, sub children and so on till the last indent occurs/ //method to minimize all the child rows of that particular category -(void)miniMizeThisRows:(NSArray*)ar forTable:(UITableView *)tableView withIndexpath:(NSIndexPath *)indexPath{

for(NSDictionary *dicChildren in ar ) {
    
    NSUInteger indexToRemove=[_objects indexOfObjectIdenticalTo:dicChildren];
    
    NSArray *arrayChildren=[dicChildren valueForKey:keyChildren];
    
    if(arrayChildren && [arrayChildren count]>0){
        [self miniMizeThisRows:arrayChildren forTable:tableView withIndexpath:indexPath];//calling self method to remove  the childrens
    }
    
    if([_objects indexOfObjectIdenticalTo:dicChildren]!=NSNotFound) {
        
        //updating array
        [_objects removeObjectIdenticalTo:dicChildren];
        
        //deleting the row
        [tableView deleteRowsAtIndexPaths:@[[NSIndexPath indexPathForRow:indexToRemove inSection:indexPath.section]] withRowAnimation:UITableViewRowAnimationRight];
    }
}
}