java - Javafx resize components when fullscreen

Question

Original size screenshot

Fullscreen screenshot

When i resize how can i nicely arrange the components. im using FXML for the GUI

FXML CODE

    <AnchorPane id="AnchorPane" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="style.LoginController">
   <children>
      <Button fx:id="login" layoutX="250.0" layoutY="242.0" mnemonicParsing="false" onAction="#login" prefHeight="32.0" prefWidth="101.0" text="Login" />
      <ImageView fx:id="img2" fitHeight="32.0" fitWidth="32.0" layoutX="109.0" layoutY="184.0" pickOnBounds="true" preserveRatio="true">
         <image>
            <Image url="@../../../../../Downloads/Drawing%20(23).png" />
         </image>
      </ImageView>
      <Label fx:id="title" alignment="CENTER" focusTraversable="false" layoutX="166.0" layoutY="48.0" opacity="0.83" prefHeight="42.0" prefWidth="269.0" styleClass="title" text="Label" textAlignment="CENTER" textOverrun="CENTER_ELLIPSIS">
         <font>
            <Font name="Arial Narrow" size="36.0" />
         </font>
      </Label>
      <TextField fx:id="txtusername" layoutX="159.0" layoutY="126.0" prefHeight="32.0" prefWidth="283.0" promptText="Username" styleClass="fields" />
      <PasswordField fx:id="txtpassword" layoutX="159.0" layoutY="183.0" prefHeight="32.0" prefWidth="283.0" promptText="Password" styleClass="fields" />
      <ImageView fx:id="img1" fitHeight="32.0" fitWidth="32.0" layoutX="109.0" layoutY="126.0" pickOnBounds="true" preserveRatio="true">
         <image>
            <Image url="@../../../../../Downloads/Drawing%20(22).png" />
         </image>
      </ImageView>
      <ProgressIndicator fx:id="progress" layoutX="197.0" layoutY="120.0" minHeight="0.0" minWidth="0.0" prefHeight="128.0" prefWidth="188.0" progress="0.0" styleClass="progressind" />
   </children>
</AnchorPane>

Answer 1

The problem is because you are using AnchorPane as your root pane. Though, you can use AnchorPane for scenarios like this, I personally do not prefer it because you need to do a lot of things to get it right. There are easier ways to do and that is what I am gonna show you.

From the Javadocs :

AnchorPane allows the edges of child nodes to be anchored to an offset from the anchor pane's edges.

Solution

Use a different layout. May be a GridPane or VBox. These layouts have child alignment instead of anchors, which allow the children to be aligned to a particular position.

For re-sizing your children, you can set the HGrow / VGrow property on them.

Example

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.geometry.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>


<VBox alignment="CENTER" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" spacing="20.0" style="-fx-background-color: DARKCYAN;" xmlns="http://javafx.com/javafx/8.0.40" xmlns:fx="http://javafx.com/fxml/1">
   <children>
      <Label text="Easy Doctor" />
      <TextField promptText="Username" />
      <TextField promptText="Password" />
   </children>
   <padding>
      <Insets bottom="50.0" left="50.0" right="50.0" top="50.0" />
   </padding>
</VBox>

Here is a small gif on how it looks :