我正在尝试创建一个简单的聊天应用程序来练习。我使用 UITableView 来设置我的聊天室,并从情节提要中配置了我的单元格。我将一个简单的 UITextView 作为我的消息容器,但是由于某些奇怪的原因,我得到的尺寸很奇怪而且毫无意义。这是单元格的代码:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
ChatroomTableViewCell *cell = (ChatroomTableViewCell *)[self.tableView dequeueReusableCellWithIdentifier:@"MessageCell" forIndexPath:indexPath];
Message *cellMessage = [self.messages objectAtIndex:indexPath.row];
cell.userNameLabel.text = cellMessage.userName;
cell.messageLabel.text = cellMessage.messageText;
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"HH:mm a"];
[cell.messageLabel.layer setCornerRadius:2.0f];
if (cellMessage.messageType == SENT_MESSAGE) {
NSString *dateLabelString = [NSString stringWithFormat:@"Sent: %@", [formatter stringFromDate:cellMessage.relevantDate]];
cell.relevantDateLabel.text = dateLabelString;
cell.userNameLabel.textAlignment = NSTextAlignmentRight;
cell.relevantDateLabel.textAlignment = NSTextAlignmentRight;
[cell.messageLabel setBackgroundColor:self.currentTheme.sentMessageColor];
[cell.messageLabel.layer setBorderColor:self.currentTheme.sentMessageColor.CGColor];
[cell.messageLabel setTextAlignment:NSTextAlignmentRight];
[cell.messageLabel sizeToFit];
[cell.messageLabel setFrame:CGRectMake(self.view.frame.size.width - 20 - cell.messageLabel.frame.size.width - 10, cell.messageLabel.frame.origin.y, cell.messageLabel.frame.size.width + 10, cell.messageLabel.frame.size.height + 5)];
} else {
NSString *dateLabelString = [NSString stringWithFormat:@"Received: %@", [formatter stringFromDate:cellMessage.relevantDate]];
cell.relevantDateLabel.text = dateLabelString;
cell.userNameLabel.textAlignment = NSTextAlignmentLeft;
cell.relevantDateLabel.textAlignment = NSTextAlignmentLeft;
if (cellMessage.messageType == EVENT_MESSAGE) {
[cell.messageLabel setBackgroundColor:self.currentTheme.eventMessageColor];
} else {
[cell.messageLabel setBackgroundColor:self.currentTheme.receivedMessageColor];
}
[cell.messageLabel sizeToFit];
}
return cell;
}
这是我得到的结果:
有人熟悉这个问题吗?有谁知道原因?
编辑:我尝试使用 UILabel 并且一切正常,但 UILabel 没有我需要的功能。