Question

我想现在如何在单击特定单元格时在单元格背景上添加图像我的表分组我有三个部分和5行我尝试这个代码，但它不适合我我在两个方法中都写了这个代码

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
 static NSString *CellIdentifier = @"Cell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
   if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
    }

UIImage *rowBackground;   
    UIImage *selectionBackground;   
    rowBackground = [UIImage imageNamed:@"topAndBottomRow.png"]; 
    selectionBackground = [UIImage imageNamed:@"topRowSelected.png"];        
    cell.backgroundView =   [[[UIImageView alloc] init] autorelease];  
    cell.selectedBackgroundView =   [[[UIImageView alloc] init] autorelease];     
    ((UIImageView *)cell.backgroundView).image = rowBackground;  
    ((UIImageView *)cell.selectedBackgroundView).image = selectionBackground;


    return cell;

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

UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];

    UIImage *rowBackground;   
    UIImage *selectionBackground;   
    rowBackground = [UIImage imageNamed:@"topAndBottomRow.png"]; 
    selectionBackground = [UIImage imageNamed:@"topRowSelected.png"];        
    cell.backgroundView =   [[[UIImageView alloc] init] autorelease];  
    cell.selectedBackgroundView =   [[[UIImageView alloc] init] autorelease];     
    ((UIImageView *)cell.backgroundView).image = rowBackground;  
    ((UIImageView *)cell.selectedBackgroundView).image = selectionBackground;

}

Answer 1

试一试： -

- (void)tableView: (UITableView*)tableView willDisplayCell: (UITableViewCell*)cell1 forRowAtIndexPath: (NSIndexPath*)indexPath
{
 cell1.backgroundColor = indexPath.row % 2 ? [UIColor colorWithPatternImage:[UIImage imageNamed:(@"back2.png")]]: [UIColor colorWithPatternImage:[UIImage imageNamed:(@"back1.png")]];
UIView *myBackView = [[UIView alloc] initWithFrame:cell1.frame];
myBackView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:(@"back3.png")]];
cell1.selectedBackgroundView = myBackView;
}

它可能会对你有所帮助:)）

Answer 2

这样做

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
 static NSString *CellIdentifier = @"Cell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
   if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
    }

    UIImage *rowBackground;   
    UIImage *selectionBackground;   
    rowBackground = [UIImage imageNamed:@"topAndBottomRow.png"]; 
    selectionBackground = [UIImage imageNamed:@"topRowSelected.png"];        
    backgroundImageView =   [[[UIImageView alloc] init] autorelease]; 
     backgroundImageView.image = rowBackground ; 
    selectedBackgroundImageView =   [[[UIImageView alloc] init] autorelease]; 
    selectedBackgroundImageView.image =selectionBackground ;    
    cell.backgroundView =   backgroundImageView;
    cell.selectedBackgroundView =  selectedBackgroundImageView;
    return cell;

}

不需要在didSelect I Guess中写相同的内容。

iphone objective-c

如何更改iphone中组表视图中所选的单元格背景图像

2 个答案: