Question

构建了一个自定义视图来制作聊天消息

如果应用程序直接在设备上编译，它工作正常。但是在创建ipa文件并通过iTunes安装时，在iOS 4.2中，聊天气泡的高度超出了所需的大小并导致聊天重叠气泡。但它在iOS 5中工作正常。这是什么原因？提前感谢。

编辑：

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {

    NSDictionary *dict = (NSDictionary *)[messages objectAtIndex:indexPath.row];
    NSString *msg = [[dict objectForKey:@"message"] stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

    CGSize  textSize = { 260.0, 10000.0 };
    CGSize size = [msg sizeWithFont:[UIFont boldSystemFontOfSize:13]
                  constrainedToSize:textSize
                      lineBreakMode:UILineBreakModeWordWrap];

    size.height += padding*3;

    CGFloat height = size.height < 65 ? 65 : size.height;
    return height;

}

编辑2：

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

    SMMessageViewTableCell *cell = (SMMessageViewTableCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    if (cell == nil) {
        cell = [[[SMMessageViewTableCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
    }


    if ([messages count]>0) {
        NSLog(@"index path is %d",indexPath.row);

    NSDictionary *s = (NSDictionary *) [messages objectAtIndex:indexPath.row];


    NSString *sender =allTrim([s objectForKey:@"sender"]);
    NSString *senderId = [s objectForKey:@"friendId"];
    NSString *message = [s objectForKey:@"message"];
        if ([message length]<8)
        {
            message=[message stringByAppendingString:@"  "];
        }
    message=[message stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

    NSString *time = [s objectForKey:@"time"];
    NSString *locatn = [s objectForKey:@"friendLocation"];

    CGSize  textSize = { 260.0, 10000.0 };
    CGSize size = [message sizeWithFont:[UIFont boldSystemFontOfSize:13]
                      constrainedToSize:textSize
                          lineBreakMode:UILineBreakModeWordWrap];

    size.width += (padding/2);

    cell.messageContentView.text = [message stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
    cell.accessoryType = UITableViewCellAccessoryNone;
    cell.userInteractionEnabled = YES;
        cell.selectionStyle=UITableViewCellSelectionStyleNone;    
    UIImage *bgImage = nil;

    if ([senderId isEqualToString:UIAppDelegate.userId]) { 

        sender=@"Me";

        bgImage = [[UIImage imageNamed:@"ChatBubbleGray.png"] stretchableImageWithLeftCapWidth:24  topCapHeight:15];

        [cell.messageContentView setFrame:CGRectMake(padding, padding*2, size.width, size.height)];

        [cell.bgImageView setFrame:CGRectMake( cell.messageContentView.frame.origin.x - padding/2,
                                              cell.messageContentView.frame.origin.y - padding/2,
                                              size.width+padding,
                                              size.height+padding)];
        cell.senderAndTimeLabel.textAlignment=UITextAlignmentLeft;

    } else {


        bgImage = [[UIImage imageNamed:@"ChatBubbleGreen.png"] stretchableImageWithLeftCapWidth:24  topCapHeight:15];

        [cell.messageContentView setFrame:CGRectMake(320 - size.width - padding,
                                                     padding*2,
                                                     size.width,
                                                     size.height)];

        [cell.bgImageView setFrame:CGRectMake(cell.messageContentView.frame.origin.x - padding/2,
                                              cell.messageContentView.frame.origin.y - padding/2,
                                              size.width+padding,
                                              size.height+padding)];
        cell.senderAndTimeLabel.textAlignment=UITextAlignmentRight;


    }
    cell.bgImageView.image = bgImage;
    if ([locatn length]>0)
    {
        cell.senderAndTimeLabel.text = [NSString stringWithFormat:@"%@, %@   %@", sender, locatn, time];

    }
    cell.senderAndTimeLabel.text = [NSString stringWithFormat:@"%@,   %@", sender, time];
    }
    return cell;
}

Answer 1

您是否尝试过直接构建版本？通常，直接编译是在未应用优化的情况下完成的。我从来没有听说过这种情况，但有些优化可能会让你的观点变得糟透。

Answer 2

我根据教程
构建了[...]

你的第一个编程错误。 ;）

除了开玩笑之外，运行非调试可执行文件会导致应用程序具有未初始化的非归零堆，其中包含实例变量值。如果不初始化所有实例变量，可能会导致不可预测的行为。这可能是一个问题，但我们无法看到所涉及的所有代码，因此我们只能赌注可能出错的问题。你所附的代码似乎不是问题所在。这是破裂的气泡图。

在iOS 4.2中查看渲染

2 个答案: