iOS UITableViewCell 的 imageView大小更改

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{

    static NSString *CellIdentifier = @"Cell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    if(cell == nil){
        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier];
        cell.textLabel.text = [self.arrStr objectAtIndex:indexPath.row];

        UIImage *img =  [UIImage imageNamed:[self.arrImg objectAtIndex:indexPath.row]];
        cell.imageView.image = img;

        //iOS UITableViewCell 的 imageView大小更改
        CGSize itemSize = CGSizeMake(img.size.width *2/3, img.size.height *2/3);
        UIGraphicsBeginImageContext(itemSize);
        CGRect imageRect = CGRectMake(0.0, 0.0, itemSize.width, itemSize.height);
        [cell.imageView.image drawInRect:imageRect];
        cell.imageView.image = UIGraphicsGetImageFromCurrentImageContext();
        UIGraphicsEndImageContext();
    }
    return cell;


}