change tableview row height in ios 5

Question

Before ios 5 I would set the row height in a tableview like this:

self.tableView.rowHeight=71;

However, it doesn't work on iOS5.

Someone has an idea?

Thanks

Answer 1

Have you tried tableView:heightForRowAtIndexPath: from UITableViewDelegate?

You may set the row height to 71 by implementing tableView:heightForRowAtIndexPath: in your UITableView delegate (one who supports the UITableViewDelegate protocol).

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    return 71.0;
}

First you should set a delegate of your tableView. Delegate should conform to the UITableViewDelegate protocol. Let's say we have a TableDelegate class. To conform to a UITableViewDelegate protocol one should have it in square brackets in it's declaration like this:

...    
@interface TableDelegate : UIViewController <UITableViewDelegate>
...
or
@interface TableDelegate : UIViewController <some_other_protocol, UITableViewDelegate>

Then you set the delegate:

...
// create one first
TableDelegate* tableDelegate = [[TableDelegate alloc] init];
...
self.tableView.delegate = tableDelegate;

In the end you should implement the tableView:heightForRowAtIndexPath: method in the TableDelegate implementation:

@implementation TableDelegate
...
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    return 71.0;
}
...
@end

rowHeight

Just to clarify, using rowHeight should work just fine and perform better than constant returned from -tableView:heightForRowAtIndexPath: as Javier Soto points out in the comments. Also note, that if your UITableView has delegate returning height in -tableView:heightForRowAtIndexPath: and rowHeight property set, prior value is honoured.

Answer 2

Im coding for iOS 5 and it actually works. You just need to implement the line you said in the:

 - (void)viewDidLoad

method after the:

[super viewDidLoad];

The:

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath 

method does not work if the TableView is empty. But if you use the rowHeight property it will work even if the view is empty.