在tableview中设置添加到单元格的图像的大小

Question

我正在从plist添加图像到我的单元格视图。此外，我也有与使用网址保存到plist中的图像相同的问题。他们是不同的大小。我想调整它们到一定的大小，以便它们看起来都一样。我试图使用：

cell.imageView.contentMode = UIViewContentModeScaleAspectFill; 
cell.imageView.clipsToBounds = YES; 

它没有工作。我尝试了一堆其他的东西，但没有成功。我查了一堆东西，找不到有用的东西。这里是我的单元格行方法：

- (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]; 
    } 

    if (tableView == self.searchDisplayController.searchResultsTableView) { 
     cell.textLabel.text = [[searchResults objectAtIndex:indexPath.row] valueForKey:@"city"]; 
     cell.detailTextLabel.text = [[searchResults objectAtIndex:indexPath.row] valueForKey:@"state"]; 
     cell.imageView.image = [UIImage imageNamed:[[self.searchResults objectAtIndex:indexPath.row] valueForKey:@"cityImage"]]; 
     cell.imageView.contentMode = UIViewContentModeScaleAspectFill; 
     cell.imageView.clipsToBounds = YES; 
    } else { 
     cell.textLabel.text = [[content objectAtIndex:indexPath.row] valueForKey:@"city"]; 
     cell.detailTextLabel.text = [[content objectAtIndex:indexPath.row] valueForKey:@"state"]; 
     // Construct the expected URL for the image. 
     NSURL *imageFileURL = [[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask][0]; 
     imageFileURL = [imageFileURL URLByAppendingPathComponent:[[self.content objectAtIndex:indexPath.row] valueForKey:@"cityImage"] isDirectory:NO]; 
     // Attempt to load the image at the above URL. 
     cell.imageView.image = [[UIImage alloc] initWithContentsOfFile:[imageFileURL path]]; 
     if (!cell.imageView.image) 
      cell.imageView.image = [UIImage imageNamed:[[self.content objectAtIndex:indexPath.row] valueForKey:@"cityImage"]]; 
     cell.imageView.contentMode = UIViewContentModeScaleAspectFill; 
     cell.imageView.clipsToBounds = YES; 
    } 

    return cell; 
} 

对于我的生活，我无法弄清楚这一点。我知道这可能是一个简单的解决方法，但我想不出别的。

编辑：

至于建议，我创建了一个自定义单元格，宣布在那里layoutSubviews，然后子类细胞如下：

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { 
    static NSString *CellIdentifier = @"Cell"; 
    MyCostumCell *cell = (MyCostumCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier]; 
    if (cell == nil) { 
     cell = [[MyCostumCell alloc] initWithStyle: UITableViewCellStyleDefault reuseIdentifier: CellIdentifier]; 
    } 

    if (tableView == self.searchDisplayController.searchResultsTableView) { 
     cell.textLabel.text = [[searchResults objectAtIndex:indexPath.row] valueForKey:@"city"]; 
     cell.detailTextLabel.text = [[searchResults objectAtIndex:indexPath.row] valueForKey:@"state"]; 
     cell.imageView.image = [UIImage imageNamed:[[self.searchResults objectAtIndex:indexPath.row] valueForKey:@"cityImage"]]; 
     //cell.textLabel.textColor = [UIColor colorWithRed:153.0/255.0f green:0.0/255.0f blue:0.0/255.0f alpha:1]; 
    } else { 

     cell.textLabel.text = [[content objectAtIndex:indexPath.row] valueForKey:@"city"]; 
     cell.detailTextLabel.text = [[content objectAtIndex:indexPath.row] valueForKey:@"state"]; 
     // Construct the expected URL for the image. 
     NSURL *imageFileURL = [[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask][0]; 
     imageFileURL = [imageFileURL URLByAppendingPathComponent:[[self.content objectAtIndex:indexPath.row] valueForKey:@"cityImage"] isDirectory:NO]; 
     // Attempt to load the image at the above URL. 
     cell.imageView.image = [[UIImage alloc] initWithContentsOfFile:[imageFileURL path]]; 
     if (!cell.imageView.image) 
      cell.imageView.image = [UIImage imageNamed:[[self.content objectAtIndex:indexPath.row] valueForKey:@"cityImage"]]; 
    } 

    return cell; 
} 

再次，它没有工作。下面是截图：

Answer 1

你继承的UITableViewCell

更多信息。但你没有创建一个全新的视图层次结构所建议的但丁，但覆盖-layoutSubviews

@interface VideoItemCell : UITableViewCell 
@end 


@implementation VideoItemCell 
-(void)layoutSubviews 
{ 
    [super layoutSubviews]; 
    self.imageView.contentMode = UIViewContentModeScaleAspectFill; 
    self.imageView.frame = CGRectMake(self.imageView.frame.origin.x, self.imageView.frame.origin.y, 100, 100); 
} 

@end 

在的tableview控制器

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    static NSString *CellIdentifier = @"Cell"; 
    VideoItemCell *cell = (VideoItemCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier]; 
    if (cell == nil) { 
     cell = [[VideoItemCell alloc] initWithStyle: UITableViewCellStyleDefault reuseIdentifier: CellIdentifier]; 
    } 

    //… 
    return cell; 
} 

Answer 2

默认TableViewCell基于图像尺寸调整大小ImageView的。为了解决这个问题，你可以使用具有自定义图像查看自定义单元格..关于如何创建自定义单元格

How do you load custom UITableViewCells from Xib files?