我在 libgdx 中使用滚动窗格时遇到问题。它将用于聊天窗口类。当您按 Enter 时,消息将被添加到窗口中,您将滚动到最新发布的消息。但是它没有。它错过了一条消息并滚动到最新消息之前的一条。下面我发布了聊天窗口类和向它添加输入的方法。textAreaholder 是一个包含所有内容的表格。聊天字段是您输入要发布到聊天的内容的地方。聊天区域是随后添加到表中的文本字段。但如前所述..它不能正确滚动,错误正确地位于 keyTyped 方法的某个地方。
public ChatWindow(final Pipe<String> chatPipe) {
this.chatPipe = chatPipe;
messageFieldCounter = 0;
white = new BitmapFont(Gdx.files.internal("fonts/ChatWindowText.fnt"), false);
fontSize = white.getLineHeight();
white.scale(TEXT_SCALE);
final TextFilter filter = new TextFilter();
/* Making a textfield style */
textFieldStyle = new TextFieldStyle();
textFieldStyle.fontColor = Color.WHITE;
textFieldStyle.font = white;
textFieldStyle.focusedFontColor = Color.CYAN;
/*Area where all chat appears*/
textAreaHolder = new Table();
textAreaHolder.debug();
/*Applies the scrollpane to the chat area*/
scrollPane = new ScrollPane(textAreaHolder);
scrollPane.setForceScroll(false, true);
scrollPane.setFlickScroll(true);
scrollPane.setOverscroll(false, false);
/*Input chat*/
chatField = new TextField("", textFieldStyle);
chatField.setTextFieldFilter(filter);
/*Tries to make the textField react on enter?*/
chatField.setTextFieldListener(new TextFieldListener() {
@Override
public void keyTyped(final TextField textField, final char key) {
if (key == '\n' || key == '\r') {
if (messageFieldCounter <= 50) {
textAreaHolder.row();
StringBuilder message = new StringBuilder(); //Creates the message
message.append(chatField.getText()); //Appends the chatfield entry
TextArea chatArea = new TextArea(message.toString(), textFieldStyle); //Creates a chatArea with the message
chatArea.setHeight(fontSize + 1);
chatArea.setDisabled(true);
chatArea.setTextFieldFilter(filter);
textAreaHolder.add(chatArea).height(CHAT_INPUT_HEIGHT).width(CHAT_WIDTH);
scrollPane.scrollToCenter(0, 0, 0, 0);
//Scrolls to latest input
chatField.setText("");
//InputDecider.inputDecision(message.toString(), chatPipe); //TODO: Change the filter
//chatPipe.put(message.toString()); //TODO: testing
}
}
}
});