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更改tableView所选单元格图像显示多个选定的单元格图像

[英]Changing tableView Cell Image on selection shows multple selected cell images

我有带单元格图像的tableView我想在选择任何单元格时添加选择图像,它可以正常工作,但问题是首先选择一行,然后选择第一行,然后选择了row2,然后选择了row2和row1,应该只能是row2不能同时选择。

   - (void)tableView:(UITableView *)aTableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {


 cell = [self.tableView cellForRowAtIndexPath:indexPath];

     if (indexPath.row==0) {


     cell.imageView.image=[UIImage imageNamed:@"Activity2.png"]; 
     }

     else if(indexPath.row==1){
    cell.imageView.image=[UIImage imageNamed:@"Catalog2.png"]; 


     }
   else{
    cell.imageView.image=[UIImage imageNamed:@"Library2.png"]; 

     }

    NSUInteger row = indexPath.row;
    [self.appDelegate.splitViewController viewWillDisappear:YES];

  NSMutableArray *viewControllerArray=[[NSMutableArray alloc] initWithArray: [[self.appDelegate.splitViewController.viewControllers objectAtIndex:1] viewControllers]];
  [viewControllerArray removeLastObject];
      if (row == 0) {
  self.firstDetailViewController=[[[FirstDetailViewController alloc] init]autorelease];
  [viewControllerArray addObject:self.firstDetailViewController];
  self.appDelegate.splitViewController.delegate = self.firstDetailViewController;
  }

     if (row == 1) {
self.secondDetailViewController=[[[SecondDetailViewController alloc]init]autorelease];
[viewControllerArray addObject:self.secondDetailViewController];
self.appDelegate.splitViewController.delegate = self.secondDetailViewController;

    }

   if (row == 2) {

    self.myLearningViewController=[[[MyLearningViewController alloc]init]autorelease];
[viewControllerArray addObject:self.myLearningViewController];
self.appDelegate.splitViewController.delegate = self.myLearningViewController;
    }
     }

如果您使用的是iOS 5.0或更高版本,那么如果设置得当,您可以呼吁allowMultipleSelection 将此设置为NO 否则,请使用–deselectRowAtIndexPath:animated:说来清除第一个选择。 -tableView:didSelectRowAtIndexPath:实现中调用这些方法之一。

我认为,您可以像这样在cellForRowAtIndexPath设置单元格的背景视图

cell.selectionStyle = UITableViewCellSelectionStyleNone;
cell.backgroundColor = [UIColor clearColor];
UIImageView *bgView= [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 320, 44)];
bgView.backgroundColor = [UIColor clearColor];
bgView.image = [UIImage imageNamed:@"cellBgImage.png"];
cell.backgroundView = bgView;

并且,在didSelectRowAtIndexPath ,使用它

[tableView deselectRowAtIndexPath:indexPath animated:YES];

请检查是否有帮助。

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