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Ho allegato la seguente applicazione di esempio di javafx, in quanto esiste una classe di dialogo che viene utilizzata per la finestra di dialogo. Mentre il pulsante clic sul pulsante esiste nella finestra di dialogo, la memoria si alza troppo. Semplicemente quando la finestra di dialogo mostra - supporto in taskmanager ci vogliono 57kb e poi mentre clicchiamo sul pulsante e disponiamo la finestra di dialogo - taskmanager mostra che la sua memoria inizia ad aumentare - e infine si è bloccata, ottenendo l'eccezione di memoria dump.Memory raise on dialog button clic nell'applicazione javafx
Ci sono seguenti classi nel campione Dialog.java: mostra la finestra di dialogo con quanto ok - annullare pulsante MessageDialog.fxml: questo fxml creare la finestra di MessageDialogController è il file associato a MessageDialog.fxml JavaFXSample.java è la classe principale per eseguire questo esempio.
Dialog.java
package javafxsample;
import java.io.IOException;
import java.io.InputStream;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.fxml.JavaFXBuilderFactory;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.scene.layout.AnchorPane;
import javafx.stage.Modality;
import javafx.stage.Stage;
import javafx.stage.StageStyle;
/**
*
* @author Admin
*/
public class Dialog {
public static void ShowinfoDialog(String title, String Message, Stage parentStage, double w, double h) {
if (title == null || title.trim().isEmpty()) {
title = "Info";
}
showMessageDialog(title, Message, parentStage, "sidetheme.png", w, h);
}
public static void showMessageDialog(String title, String Message, Stage parentStage, String image, double w, double h) {
Stage stage = new Stage();
MessageDialogController messageDialogController = (MessageDialogController) replaceScene("/javafxsample/MessageDialog.fxml", stage);
messageDialogController.init(stage, Message, image);
if (parentStage != null) {
stage.initOwner(parentStage);
}
stage.initModality(Modality.APPLICATION_MODAL);
stage.initStyle(StageStyle.UTILITY);
stage.setResizable(false);
if (title != null && !title.trim().isEmpty()) {
stage.setTitle(title);
}
stage.setWidth(w);
stage.setHeight(h);
// Utility.setCentreLocation(stage, parentStage);
InputStream inputStream = null;
try {
inputStream = Dialog.class.getResourceAsStream(image);
stage.getIcons().add(new Image(inputStream));
} finally {
if (inputStream != null) {
try {
inputStream.close();
} catch (IOException ex) {
}
}
}
stage.showAndWait();
}
public static Initializable replaceScene(String fXml, Stage mystage) {
InputStream in = null;
try {
FXMLLoader loader = new FXMLLoader();
in = Dialog.class.getResourceAsStream(fXml);
loader.setLocation(Dialog.class.getResource(fXml));
loader.setBuilderFactory(new JavaFXBuilderFactory());
AnchorPane page;
try {
page = (AnchorPane) loader.load(in);
} finally {
in.close();
}
Scene scene = new Scene(page);
mystage.setScene(scene);
return loader.getController();
} catch (Exception ex) {
System.out.println("Exception in replaceScene. " + fXml + ".Error:" + ex.getMessage());
return null;
}
}
}
JavaFXSample.java
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package javafxsample;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
/**
*
* @author JavaUser1
*/
public class JavaFXSample extends Application {
@Override
public void start(final Stage primaryStage) {
Button btn = new Button();
btn.setText(" Click on ME ");
btn.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
Dialog.ShowinfoDialog("Sample", "Clicked on button", primaryStage, 400.0, 150.0);
}
});
StackPane root = new StackPane();
root.getChildren().add(btn);
Scene scene = new Scene(root, 300, 250);
primaryStage.setTitle("Hello World!");
primaryStage.setScene(scene);
primaryStage.show();
}
/**
* The main() method is ignored in correctly deployed JavaFX application.
* main() serves only as fallback in case the application can not be
* launched through deployment artifacts, e.g., in IDEs with limited FX
* support. NetBeans ignores main().
*
* @param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}
}
MessageDialog.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.geometry.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.text.*?>
<AnchorPane id="AnchorPane" prefHeight="138.0" prefWidth="306.0" xmlns:fx="http://javafx.com/fxml" fx:controller="javafxsample.MessageDialogController">
<children>
<TitledPane animated="false" collapsible="false" prefHeight="138.0" prefWidth="347.0" text="" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="-40.0">
<content>
<AnchorPane id="Content" minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0">
<children>
<GridPane prefHeight="112.0" prefWidth="282.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
<children>
<Label fx:id="lblicon" text="" GridPane.columnIndex="0" GridPane.halignment="CENTER" GridPane.rowIndex="0">
<GridPane.margin>
<Insets top="20.0" fx:id="x1" />
</GridPane.margin>
</Label>
<Label fx:id="lblMessage" text="" wrapText="true" GridPane.columnIndex="1" GridPane.rowIndex="0">
<font>
<Font size="14.0" />
</font>
<GridPane.margin>
<Insets left="2.0" top="20.0" />
</GridPane.margin>
</Label>
<Separator prefWidth="200.0" GridPane.columnIndex="0" GridPane.columnSpan="2" GridPane.rowIndex="1" />
<Separator prefWidth="200.0" GridPane.columnIndex="0" GridPane.columnSpan="2" GridPane.rowIndex="1">
<GridPane.margin>
<Insets top="4.0" />
</GridPane.margin>
</Separator>
<HBox id="HBox" fx:id="hBox" alignment="CENTER" spacing="5.0" GridPane.columnIndex="0" GridPane.columnSpan="2" GridPane.halignment="CENTER" GridPane.rowIndex="2" />
</children>
<columnConstraints>
<ColumnConstraints hgrow="SOMETIMES" maxWidth="82.0" minWidth="82.0" prefWidth="82.0" />
<ColumnConstraints hgrow="SOMETIMES" maxWidth="-1.0" minWidth="10.0" prefWidth="220.0" />
</columnConstraints>
<rowConstraints>
<RowConstraints maxHeight="-1.0" minHeight="10.0" prefHeight="68.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="15.0" minHeight="15.0" prefHeight="15.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="29.0" minHeight="29.0" prefHeight="29.0" vgrow="SOMETIMES" />
</rowConstraints>
</GridPane>
</children>
</AnchorPane>
</content>
</TitledPane>
</children>
</AnchorPane>
MessageDialogController.java
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package javafxsample;
import java.io.InputStream;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.layout.HBox;
import javafx.stage.Stage;
/**
* FXML Controller class
*
* @author Admin
*/
public class MessageDialogController implements Initializable {
@FXML
private Label lblMessage;
@FXML
private Label lblicon;
@FXML
private HBox hBox;
private Stage myStage;
private String clicked = "cancel";
/**
* Initializes the controller class.
*/
@Override
public void initialize(URL url, ResourceBundle rb) {
// TODO
}
public void btnOkEvent(ActionEvent event) {
clicked = "yes";
myStage.close();
}
public void btnCancelEvent(ActionEvent event) {
clicked = "no";
myStage.close();
}
public void init(Stage stage, String Message, String image) {
Button btnOk = new Button("OK");
btnOk.setPrefSize(70.0, 23.0);
btnOk.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent t) {
btnOkEvent(t);
}
});
hBox.getChildren().add(btnOk);
lblMessage.setText(Message);
if (image != null && !image.trim().isEmpty()) {
Image imageRunBackupPlan = new Image(getClass().getResourceAsStream(image));
lblicon.setGraphic(new ImageView(imageRunBackupPlan));
}
this.myStage = stage;
}
public void init(Stage stage, String Message, String btnOkText, String btnCancelText, String image) {
clicked = "cancel";
Button btnOk = new Button(btnOkText);
btnOk.setPrefHeight(23);
Button btnCancel = new Button(btnCancelText);
btnCancel.setPrefHeight(23);
hBox.getChildren().addAll(btnOk, btnCancel);
btnOk.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent t) {
btnOkEvent(t);
}
});
btnCancel.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent t) {
btnCancelEvent(t);
}
});
lblMessage.setText(Message);
if (image != null && !image.trim().isEmpty()) {
InputStream inputStream = null;
Image imageRunBackupPlan = new Image(getClass().getResourceAsStream(image));
lblicon.setGraphic(new ImageView(imageRunBackupPlan));
}
this.myStage = stage;
}
public String clickedOn() {
return clicked;
}
}
Si prega di elaborare su "Mentre, clicca sul pulsante presente sul dialogo -. È la memoria ottenere alzato troppo" – Puce
Ho aggiornato il mio post –
Forse un profiler potrebbe aiutarti a scoprire da dove proviene il problema. –