Setting background image of custom table view cells

Question

I've tried numerous ways of setting the background image of an unselected table cell, but without success:

1- In IB setting the image field
2- cell.contentView.backgroundColor = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"list.png"]];
3- cell.imageView.image = [UIImage imageNamed:@"list_selected.png"];

All seem to fail. The image setting for selected cell works, but not for an unselected cell. Anyone having any idea what might be wrong here?

Thanks

Answer 1

Try setting the backgroundView to an imageView of the image.

Code example from Jason Moore (with TomH's correction):

cell.backgroundView = [[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"foo.png"]] autorelease];

Answer 2

cell.backgroundImage no longer exists. Instead use:

cell.backgroundView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"foo.png"]];

http://developer.apple.com/library/ios/#documentation/uikit/reference/UITableViewCell_Class/Reference/Reference.html

Answer 3

I've been doing this using the following UITableViewDelegate method, and setting the cell.backgroundColor property. It gets called last, right before the cell is actually drawn on the screen:

- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath {
if (indexPath.row%2)
    cell.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"TableCell-BG-Dark.png"]];
else 
    cell.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"TableCell-BG-Light.png"]];

}

And yes, I'm using a custom subclass of UITableViewCell.

Answer 4

try doing this :

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:DateCellIdentifier];
        if (cell == nil) {
            cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:DateCellIdentifier] autorelease]
            UIImageView* img = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"gradient.png"]];
            [cell setBackgroundView:img];
            [img release];
        } 
        cell.textLabel.text = @"Text";
}

Answer 5

I've also had problems with trying to change the background colour of cells, i ended up subclassing the cell for different reasons, this is my cell background alternation code:

if (indexPath.row % 2 == 0) {
    cell.contentView.backgroundColor = [UIColor colorWithWhite:230.0/255 alpha:1];
} else {
    cell.contentView.backgroundColor = [UIColor colorWithWhite:242.0/255 alpha:1];
}