Set caret position in javafx.scene.control.TextArea and javafx.scene.control.TextField

Question

I need to set the caret position manually in my code. There is a getCaretPosition() under javafx.scene.control.TextInputControl but there is no setter method.

How can I set the caret position?

Eonian

Answer 1

TextArea ta = new TextArea();
ta.setText("1234567890");
ta.positionCaret(4);

Hydrogenate

positionCaret()... what a confusing name for that method. – Giddens

yep, smth like setCaretPosition would be convenient – Hydrogenate

There's pretty strange behaviour in TextArea, like the down arrow doesn't move down. – Tomfoolery

Answer 2

You can use the positionCaret function as mentioned before. But make sure to wrap it in Platform.runLater. Otherwise it might not work at all.

Platform.runLater( new Runnable() {
    @Override
    public void run() {
        textArea.positionCaret( 0 );
    }
});

Overside

Answer 3

There are two method in TextInputControl that allow manipulation of caret position. These are :-

1. selectPositionCaret(int pos) - Selects the text between the last caret position up to the current caret position that you entered.

2. positionCaret(int pos) - Sets the current caret position clearing the previous selection as well.

So i think in your case you want to use the positionCaret method to set the position without any selections.

Emma

Answer 4

if you want to add it at the end of your TextField you can do the next

TextFieldName.positionCaret(TextFieldName.getText().length());

this will add the Curser at The end .

Chunchung