up vote 1 down vote favorite

In a single UiView controller class i've added 3 UITableView.

UITableView *ChaptersTableView;

UITableView *SubChaptersTableView;

UITableView *SubTopics1TableView;

Now in ViewDidLoad of class i've initialized these TableView's & calling the Delegate & Datasource methods on these Table View's.

ChaptersTableView = [[UITableView alloc]initWithFrame:CGRectMake(0, 0, 300, 300)];
ChaptersTableView.delegate=self;
ChaptersTableView.dataSource=self;

SubChaptersTableView = [[UITableView alloc]initWithFrame:CGRectMake(0, 0, 300, 300)];
SubChaptersTableView.delegate=self;
SubChaptersTableView.dataSource=self;



SubTopics1TableView = [[UITableView alloc]initWithFrame:CGRectMake(0, 0, 300, 300)];
SubTopics1TableView.delegate=self;
SubTopics1TableView.dataSource=self;

I wish to have different content & height for rows of different Table views. For eg. TableView1 will have cell height of 20, TableView2 will have cell height of 40 & TableView3 will have cell height of 60.

So how do i go about customizing these delegate & datasource methods depending on the tableView they are called for?

Thanks.

link|flag
80% accept rate

4 Answers

up vote 1 down vote

Have a look at this code.

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:   (NSIndexPath *)indexPath
{
static NSString *cellIden = nil;
UITableViewCell *cell = nil;
    if(  [mTableView1 isEqual:tableView ])
    {
        cellIden = @"Cell1";
        cell = [tableView dequeueReusableCellWithIdentifier:cellIden];
        if (cell == nil) 
        {
            cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:cellIden];
        }
        cell.textLabel.text = [mList objectAtIndex:indexPath.row];
    }

    if(  [mTableView2 isEqual:tableView ])
    {
        cellIden = @"Cell2";
        cell = [tableView dequeueReusableCellWithIdentifier:cellIden];
        if (cell == nil) 
        {
            cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:cellIden];
        }
        cell.textLabel.text = [mArray objectAtIndex:indexPath.row];
    }

return cell;
 }
link|flag
up vote 0 down vote

assign tag to each table ....

-(CGFloat )tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath*)indexPath
{
 if(tableView.tag==1)
     return 20;
 else if(tableView.tag==2)
     return 40;
 else if(tableView.tag==3)
     return 60;
}
link|flag
What do you expect from a test like this: tableView==ChaptersTableView? An instance cannot be equal to a class. – marzapower 2 hours ago
check out ChaptersTableView is instance... – iAmitWagh 2 hours ago
up vote 0 down vote

To modify a cell's height you have to implement the tableView:heightForRowAtIndexPath: in the delegate class, not the data source. You can attach the same delegate to all the three tables and implement that method this way:

-(CGFloat) tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath*)indexPath
{
    if ([tableView kindOfClass:[ChaptersTableView class]])
        return 20;
    else if ([tableView kindOfClass:[SubChaptersTableView class]])
        return 40;
    else if ([tableView kindOfClass:[SubTopics1TableView class]])
        return 60;
    else return 44;
}

This solution will work if you plan to use different tables with different, but unique, classes. If you plan to differentiate the cell's height for two different tables that implement the same class (eg class of tableView1 == class of tableView2 == Class1), you should set a different flag in that class' implementation and test for that flag's value.

Let me know if this can help

link|flag
up vote 0 down vote

The delegate methods return the tableview object. Hence while creating you can tag the tableviews like this. SubTopics1TableView.tag = 0, SubChaptersTableView.tag = 1 etc.

In your delegate methods check the tag and configure the tableviews. For eg 

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if(tableview.tag == 0)
// Customise this tableview
}

To change how the cell will look you can use the delegate method:

-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath

To change the height of the row you can use:

- (CGFloat) tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
link|flag
The tableView:didSelectRowAtIndexPath: method can't help you to change the cell's height! – marzapower 2 hours ago
Well yes, there are other methods where it can be done. Was just giving an idea. – Praveen S 1 hour ago
You should give a proper example then. Your answer is clearly misleading. – marzapower 1 hour ago
"So how do i go about customizing these delegate & datasource methods depending on the tableView they are called for?" -- Giving an idea with one delegate method should work in this case. – Praveen S 42 mins ago

Your Answer

 
or
required, but never shown

Not the answer you're looking for? Browse other questions tagged or ask your own question.