如何控制JavaFX TextArea自动滚动？ [英] How to control the JavaFX TextArea auto scroll?

问题描述

在我的应用程序中，我每隔2分钟将文本附加到 TextArea 。当我将新行追加到 TextArea 时，自动滚动会自动停止。但我想保留滚动按钮，我保持滚动按钮。如何在JavaFX中执行此操作。

In my application I am appending the text to TextArea every 2 minutes. When ever I append new line to TextArea the auto scroll automatically going to down. But I want to stay the scroll where i am keep the scroll button. How to do it in JavaFX.

logTextArea.appendText("Here i am appending text to text area"+"\n");
logTextArea.setScrollTop(Double.MIN_VALUE);

我试过这个但是自动滚动下去，但我需要保持我的滚动选择位置我不要我想自动失败。

I tried this but scroll automatically going to down , but I need to keep my scroll chosen position I don't want to go automatically down.

我该怎么做？

推荐答案

最简单的方法是记住插入符号的位置，并在它被 appendText 或 setText 。

The most straightforward way is to remember the position of the caret and restore it after it gets moved by appendText or setText.

以下是如何做到这一点：

Here's how you can do it:

int caretPosition = area.caretPositionProperty().get();
area.appendText("Here i am appending text to text area"+"\n");
area.positionCaret(caretPosition);

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