iPhone：普通表问题。没有出现单元背景图像

Question

我有一些代码可以改变在分组表格视图中完美工作的单元的背景图像。但是，并不是一张普通的表格。有谁知道为什么这些行为有所不同？我想要做的就是给表格单元格添加一个背景图像（普通）

这对分组表格视图完美。我是否需要自定义单元格才能使用普通视图？

感谢西蒙

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

UniversalAppAppDelegate *appDelegate = (UniversalAppAppDelegate *)[[UIApplication sharedApplication] delegate]; 

NSArray *rowData; 

// Check see if section Data is populated 
if (self.sectionData == nil) { 
    rowData = [(NSDictionary *)[tableData objectAtIndex:indexPath.section] objectForKey:@"SectionItems"]; 
} else { 
    rowData = [(NSDictionary *)[sectionData objectAtIndex:indexPath.section] objectForKey:@"SectionItems"]; //[self.sectionData objectAtIndex:indexPath.section]; 
} 

NSDictionary *cellDetails = [rowData objectAtIndex:indexPath.row]; 

// Clear any previous imageview 
UIView *view = [cell.backgroundView viewWithTag:99]; 
if (view != nil) 
    [view removeFromSuperview]; 

// Add a new imageview 
NSString *filename = [cellDetails objectForKey:@"TableItemFullImage"]; 
if (filename.length > 0) { 

    UIImageView *cellImageView = [[UIImageView alloc] initWithImage:[appDelegate imageForImageID:[cellDetails objectForKey:@"TableItemFullImage"] imageExtension:[cellDetails objectForKey:@"TableItemFullImageType"]]]; 
    cellImageView.tag = 99; 
    CGRect newFrame = cell.backgroundView.bounds; 
    cellImageView.frame = newFrame; 

    [cell.backgroundView addSubview:cellImageView]; 
    [cellImageView release]; 
} 

}

Answer 1

你太过于复杂了。

UIImage * image = [appDelegate ...]; 
cell.backgroundView = [[[UIImageView alloc] initWithImage:image] autorelease]; 

Answer 2

我怀疑，在平原表视图，该indexPath.section将不会返回正确的数据。所以这几行代码可以给你一个nil rowData。仔细检查是否

// Check see if section Data is populated 
if (self.sectionData == nil) { 
    rowData = [(NSDictionary *)[tableData objectAtIndex:indexPath.section] objectForKey:@"SectionItems"]; 
} else { 
    rowData = [(NSDictionary *)[sectionData objectAtIndex:indexPath.section] objectForKey:@"SectionItems"]; //[self.sectionData objectAtIndex:indexPath.section]; 
}