JavaFX 控件 Label Text TextField PasswordField

Label Text TextField PasswordField

Label

Label label = new Label();
label.setText("Label");
label.setFont(Font.font(30));
//顏色
label.setTextFill(Paint.valueOf("#088"));

Text

//獲取安裝的字體
Font.getFamilies();
Text text = new Text();
//顏色
text.setFill(Paint.valueOf("#ccc"));
//描邊顏色
text.setStroke(Paint.valueOf("#0ac"));
//描邊寬度
text.setStrokeWidth(2);
//描邊類型
text.setStrokeType(StrokeType.OUTSIDE);
//下劃線
text.setUnderline(true);
//中劃線
text.setStrikethrough(true);
//平滑
text.setSmooth(true);
text.setFontSmoothingType(FontSmoothingType.LCD);

TextField

TextField textField = new TextField();
textField.setText("TextField");
textField.setFont(Font.font(30));
//懸停提示
Tooltip tooltip = new Tooltip("請輸入XXX");
textField.setTooltip(tooltip);
//佔位符
textField.setPromptText("請輸入XXX");

監聽輸入

textField.textProperty().addListener(new ChangeListener<String>() {
    @Override
    public void changed(ObservableValue<? extends String> observable, String oldValue, String newValue) {
        if (newValue.length() > 8) {
            textField.setText(oldValue);
        }
    }
});

監聽選擇

textField.selectedTextProperty().addListener(new ChangeListener<String>() {
    @Override
    public void changed(ObservableValue<? extends String> observable, String oldValue, String newValue) {
        System.out.println("observable = " + observable + ", oldValue = " + oldValue + ", newValue = " + newValue);
    }
});

PasswordField

PasswordField passwordField = new PasswordField();