Added JavaFX Task

afsalashyana · afsalashyana · commit f13c8b884cdb · 2022-03-20T18:10:01.000+05:30
diff --git a/JavaFX Task/src/main/java/com/genuinecoder/javafxtask/CounterTask.java b/JavaFX Task/src/main/java/com/genuinecoder/javafxtask/CounterTask.java
@@ -0,0 +1,24 @@
+package com.genuinecoder.javafxtask;
+
+import javafx.concurrent.Task;
+
+public class CounterTask extends Task<Long> {
+
+  private final long limit;
+
+  public CounterTask(long limit) {
+    this.limit = limit;
+  }
+
+  @Override
+  protected Long call() throws Exception {
+    long sum = 0;
+    for (int i = 0; i < limit; i++) {
+      sum = sum + i;
+      updateValue(sum);
+      updateProgress(i, limit);
+      updateMessage("Done upto: " + i);
+    }
+    return sum;
+  }
+}
diff --git a/JavaFX Task/src/main/java/com/genuinecoder/javafxtask/HelloController.java b/JavaFX Task/src/main/java/com/genuinecoder/javafxtask/HelloController.java
@@ -25,10 +25,24 @@ public void initialize(URL location, ResourceBundle resources) {
 
   @FXML
   public void handleButtonStartAction(ActionEvent actionEvent) {
-    calculate();
+    invokeCounterTask();
   }
 
-  private void calculate() {
+  private void invokeCounterTask() {
+    String inputString = textFieldInput.getText();
+    inputString = inputString.replaceAll(",", "");
+    long input = Long.parseLong(inputString);
+
+    CounterTask counterTask = new CounterTask(input);
+    counterTask.valueProperty().addListener((observable, oldValue, newValue) -> labelDisplay.setText(String.valueOf(newValue)));
+    progressBar.progressProperty().bind(counterTask.progressProperty());
+
+    Thread th = new Thread(counterTask);
+    th.setDaemon(true);
+    th.start();
+  }
+
+  private void calculateInGuiThread() {
     String inputString = textFieldInput.getText();
     inputString = inputString.replaceAll(",", "");
     long input = Long.parseLong(inputString);
diff --git a/JavaFX Task/src/main/resources/com/genuinecoder/javafxtask/hello-view.fxml b/JavaFX Task/src/main/resources/com/genuinecoder/javafxtask/hello-view.fxml
@@ -5,7 +5,7 @@
 <?import javafx.scene.layout.*?>
 <?import javafx.scene.text.*?>
 
-<VBox alignment="TOP_CENTER" prefWidth="440.0" spacing="20.0" xmlns="http://javafx.com/javafx/16" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.genuinecoder.javafxtask.HelloController">
+<VBox alignment="TOP_CENTER" prefWidth="500.0" spacing="20.0" xmlns="http://javafx.com/javafx/16" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.genuinecoder.javafxtask.HelloController">
   <children>
     <VBox alignment="TOP_CENTER">
       <children>
@@ -32,5 +32,6 @@
         <Insets bottom="20.0" left="20.0" right="20.0" top="20.0" />
       </VBox.margin>
     </VBox>
+      <ProgressBar fx:id="progressBar" maxWidth="1.7976931348623157E308" minHeight="25.0" progress="0.0" />
   </children>
 </VBox>
