blocks|key|502145|text|Sergey是正确的，但是如果您需要在调用它的相同代码块中从您的本地对话框中获取响应以进行评估，则应该使用.showAndWait()，而不是.show()。下面是我在Swing的OptionPane中提供的几种对话框类型：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|502146|public+class+FXOptionPane+{

public+enum+Response+{+NO,+YES,+CANCEL+};

private+static+Response+buttonSelected+=+Response.CANCEL;

private+static+ImageView+icon+=+new+ImageView();

static+class+Dialog+extends+Stage+{
++++public+Dialog(+String+title,+Stage+owner,+Scene+scene,+String+iconFile+)+{
++++++++setTitle(+title+);
++++++++initStyle(+StageStyle.UTILITY+);
++++++++initModality(+Modality.APPLICATION_MODAL+);
++++++++initOwner(+owner+);
++++++++setResizable(+false+);
++++++++setScene(+scene+);
++++++++icon.setImage(+new+Image(+getClass().getResourceAsStream(+iconFile+)+)+);
++++}
++++public+void+showDialog()+{
++++++++sizeToScene();
++++++++centerOnScreen();
++++++++showAndWait();
++++}
}

static+class+Message+extends+Text+{
++++public+Message(+String+msg+)+{
++++++++super(+msg+);
++++++++setWrappingWidth(+250+);
++++}
}

public+static+Response+showConfirmDialog(+Stage+owner,+String+message,+String+title+)+{
++++VBox+vb+=+new+VBox();
++++Scene+scene+=+new+Scene(+vb+);
++++final+Dialog+dial+=+new+Dialog(+title,+owner,+scene,+"res/Confirm.png"+);
++++vb.setPadding(+new+Inset(10,10,10,10)+);
++++vb.setSpacing(+10+);
++++Button+yesButton+=+new+Button(+"Yes"+);
++++yesButton.setOnAction(+new+EventHandler<ActionEvent>()+{
++++++++@Override+public+void+handle(+ActionEvent+e+)+{
++++++++++++dial.close();
++++++++++++buttonSelected+=+Response.YES;
++++++++}
++++}+);
++++Button+noButton+=+new+Button(+"No"+);
++++noButton.setOnAction(+new+EventHandler<ActionEvent>()+{
++++++++@Override+public+void+handle(+ActionEvent+e+)+{
++++++++++++dial.close();
++++++++++++buttonSelected+=+Response.NO;
++++++++}
++++}+);
++++BorderPane+bp+=+new+BorderPane();
++++HBox+buttons+=+new+HBox();
++++buttons.setAlignment(+Pos.CENTER+);
++++buttons.setSpacing(+10+);
++++buttons.getChildren().addAll(+yesButton,+noButton+);
++++bp.setCenter(+buttons+);
++++HBox+msg+=+new+HBox();
++++msg.setSpacing(+5+);
++++msg.getChildren().addAll(+icon,+new+Message(+message+)+);
++++vb.getChildren().addAll(+msg,+bp+);
++++dial.showDialog();
++++return+buttonSelected;
}

public+static+void+showMessageDialog(+Stage+owner,+String+message,+String+title+)+{
++++showMessageDialog(+owner,+new+Message(+message+),+title+);
}
public+static+void+showMessageDialog(+Stage+owner,+Node+message,+String+title+)+{
++++VBox+vb+=+new+VBox();
++++Scene+scene+=+new+Scene(+vb+);
++++final+Dialog+dial+=+new+Dialog(+title,+owner,+scene,+"res/Info.png"+);
++++vb.setPadding(+new+Inset(10,10,10,10)+);
++++vb.setSpacing(+10+);
++++Button+okButton+=+new+Button(+"OK"+);
++++okButton.setAlignment(+Pos.CENTER+);
++++okButton.setOnAction(+new+EventHandler<ActionEvent>()+{
++++++++@Override+public+void+handle(+ActionEvent+e+)+{
++++++++++++dial.close();
++++++++}
++++}+);
++++BorderPane+bp+=+new+BorderPane();
++++bp.setCenter(+okButton+);
++++HBox+msg+=+new+HBox();
++++msg.setSpacing(+5+);
++++msg.getChildren().addAll(+icon,+message+);
++++vb.getChildren().addAll(+msg,+bp+);
++++dial.showDialog();
}|code-block|syntax|javascript|502147|}|502148|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Sergey is correct, but if you need to get a response from your home-spun dialog(s) for evaluation in the same block of code that invoked it, you should use .showAndWait(), not .show(). Here's my rendition of a couple of the dialog types that are provided in Swing's OptionPane:

<pre><code>public class FXOptionPane {

public enum Response { NO, YES, CANCEL };

private static Response buttonSelected = Response.CANCEL;

private static ImageView icon = new ImageView();

static class Dialog extends Stage {
 public Dialog( String title, Stage owner, Scene scene, String iconFile ) {
 setTitle( title );
 initStyle( StageStyle.UTILITY );
 initModality( Modality.APPLICATION_MODAL );
 initOwner( owner );
 setResizable( false );
 setScene( scene );
 icon.setImage( new Image( getClass().getResourceAsStream( iconFile ) ) );
 }
 public void showDialog() {
 sizeToScene();
 centerOnScreen();
 showAndWait();
 }
}

static class Message extends Text {
 public Message( String msg ) {
 super( msg );
 setWrappingWidth( 250 );
 }
}

public static Response showConfirmDialog( Stage owner, String message, String title ) {
 VBox vb = new VBox();
 Scene scene = new Scene( vb );
 final Dialog dial = new Dialog( title, owner, scene, "res/Confirm.png" );
 vb.setPadding( new Inset(10,10,10,10) );
 vb.setSpacing( 10 );
 Button yesButton = new Button( "Yes" );
 yesButton.setOnAction( new EventHandler&lt;ActionEvent&gt;() {
 @Override public void handle( ActionEvent e ) {
 dial.close();
 buttonSelected = Response.YES;
 }
 } );
 Button noButton = new Button( "No" );
 noButton.setOnAction( new EventHandler&lt;ActionEvent&gt;() {
 @Override public void handle( ActionEvent e ) {
 dial.close();
 buttonSelected = Response.NO;
 }
 } );
 BorderPane bp = new BorderPane();
 HBox buttons = new HBox();
 buttons.setAlignment( Pos.CENTER );
 buttons.setSpacing( 10 );
 buttons.getChildren().addAll( yesButton, noButton );
 bp.setCenter( buttons );
 HBox msg = new HBox();
 msg.setSpacing( 5 );
 msg.getChildren().addAll( icon, new Message( message ) );
 vb.getChildren().addAll( msg, bp );
 dial.showDialog();
 return buttonSelected;
}

public static void showMessageDialog( Stage owner, String message, String title ) {
 showMessageDialog( owner, new Message( message ), title );
}
public static void showMessageDialog( Stage owner, Node message, String title ) {
 VBox vb = new VBox();
 Scene scene = new Scene( vb );
 final Dialog dial = new Dialog( title, owner, scene, "res/Info.png" );
 vb.setPadding( new Inset(10,10,10,10) );
 vb.setSpacing( 10 );
 Button okButton = new Button( "OK" );
 okButton.setAlignment( Pos.CENTER );
 okButton.setOnAction( new EventHandler&lt;ActionEvent&gt;() {
 @Override public void handle( ActionEvent e ) {
 dial.close();
 }
 } );
 BorderPane bp = new BorderPane();
 bp.setCenter( okButton );
 HBox msg = new HBox();
 msg.setSpacing( 5 );
 msg.getChildren().addAll( icon, message );
 vb.getChildren().addAll( msg, bp );
 dial.showDialog();
}
</code></pre>

}

blocks|key|502212|text|你可以给出由JavaFX+UI+Controls+Project给出的对话框。我想这会对你有帮助的|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|502213|Dialogs.showErrorDialog(Stage+object,+errorMessage,++"Main+line",+"Name+of+Dialog+box");
Dialogs.showWarningDialog(Stage+object,+errorMessage,++"Main+line",+"Name+of+Dialog+box");|code-block|syntax|javascript|502214|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/marcojakob/javafx-ui-sandbox/tree/master/javafx-dialogs^0|6|Q|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

You can give dialog box which given by the <a href="https://github.com/marcojakob/javafx-ui-sandbox/tree/master/javafx-dialogs" rel="nofollow">JavaFX UI Controls Project</a>. I think it will help you

<pre><code>Dialogs.showErrorDialog(Stage object, errorMessage, "Main line", "Name of Dialog box");
Dialogs.showWarningDialog(Stage object, errorMessage, "Main line", "Name of Dialog box");
</code></pre>

blocks|key|718141|text|public+myClass{

private+Stage+dialogStage;



public+void+msgBox(String+title){
++++dialogStage+=+new+Stage();
++++GridPane+grd_pan+=+new+GridPane();
++++grd_pan.setAlignment(Pos.CENTER);
++++grd_pan.setHgap(10);
++++grd_pan.setVgap(10);//pading
++++Scene+scene+=new+Scene(grd_pan,300,150);
++++dialogStage.setScene(scene);
++++dialogStage.setTitle("alert");
++++dialogStage.initModality(Modality.WINDOW_MODAL);

++++Label+lab_alert=+new+Label(title);
++++grd_pan.add(lab_alert,+0,+1);

++++Button+btn_ok+=+new+Button("fermer");
++++btn_ok.setOnAction(new+EventHandler<ActionEvent>()+{

++++++++@Override
++++++++public+void+handle(ActionEvent+arg0)+{
++++++++++++//+TODO+Auto-generated+method+stub
++++++++++++dialogStage.hide();

++++++++}
++++});
++++grd_pan.add(btn_ok,+0,+2);

++++dialogStage.show();

}



}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|718142|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>public myClass{

private Stage dialogStage;



public void msgBox(String title){
 dialogStage = new Stage();
 GridPane grd_pan = new GridPane();
 grd_pan.setAlignment(Pos.CENTER);
 grd_pan.setHgap(10);
 grd_pan.setVgap(10);//pading
 Scene scene =new Scene(grd_pan,300,150);
 dialogStage.setScene(scene);
 dialogStage.setTitle("alert");
 dialogStage.initModality(Modality.WINDOW_MODAL);

 Label lab_alert= new Label(title);
 grd_pan.add(lab_alert, 0, 1);

 Button btn_ok = new Button("fermer");
 btn_ok.setOnAction(new EventHandler&lt;ActionEvent&gt;() {

 @Override
 public void handle(ActionEvent arg0) {
 // TODO Auto-generated method stub
 dialogStage.hide();

 }
 });
 grd_pan.add(btn_ok, 0, 2);

 dialogStage.show();

}



}
</code></pre>

blocks|key|718222|text|改编自这里的答案：https://stackoverflow.com/a/7505528/921224|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|718223|javafx.scene.control.Alert|718224|有关如何使用JavaFX对话框的深入描述，请参阅：JavaFX+Dialogs+(official)+by+code.makery。它们比Swing对话框更强大、更灵活，并且能够远远超出弹出消息的范围。|718225|import+javafx.scene.control.Alert
import+javafx.scene.control.Alert.AlertType;
import+javafx.application.Platform;

public+class+ClassNameHere
{

++++public+static+void+infoBox(String+infoMessage,+String+titleBar)
++++{
++++++++/*+By+specifying+a+null+headerMessage+String,+we+cause+the+dialog+to
+++++++++++not+have+a+header+*/
++++++++infoBox(infoMessage,+titleBar,+null);
++++}

++++public+static+void+infoBox(String+infoMessage,+String+titleBar,+String+headerMessage)
++++{
++++++++Alert+alert+=+new+Alert(AlertType.INFORMATION);
++++++++alert.setTitle(titleBar);
++++++++alert.setHeaderText(headerMessage);
++++++++alert.setContentText(infoMessage);
++++++++alert.showAndWait();
++++}
}|code-block|syntax|javascript|718226|要记住的一件事是，JavaFX是一个单线程图形用户界面工具包，这意味着应该直接从JavaFX应用程序线程调用此方法。如果你有另一个线程在工作，它需要一个对话框，那么可以看看下面这些：JavaFX2:+Can+I+pause+a+background+Task+/+Service?和Platform.Runlater+and+Task+Javafx。|718227|要使用此方法调用：|718228|ClassNameHere.infoBox("YOUR+INFORMATION+HERE",+"TITLE+BAR+MESSAGE");|718229|或|718230|ClassNameHere.infoBox("YOUR+INFORMATION+HERE",+"TITLE+BAR+MESSAGE",+"HEADER+MESSAGE");|718231|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/7505528/921224|1|http://code.makery.ch/blog/javafx-dialogs-official/|2|https://stackoverflow.com/questions/14941084/javafx2-can-i-pause-a-background-task-service|3|https://stackoverflow.com/questions/13784333/platform-runlater-and-task-javafx^0|9|16|0|0|0|P|P|1|0|0|2J|1D|2|3X|X|3|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1A|8|@]|9|@$A|1B|B|1C|1|1D]]|C|$]]|$1|D|3|E|5|6|7|1E|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|1F|8|@]|9|@$A|1G|B|1H|1|1I]]|C|$]]|$1|H|3|I|5|J|7|1J|8|@]|9|@]|C|$K|L]]|$1|M|3|N|5|6|7|1K|8|@]|9|@$A|1L|B|1M|1|1N]|$A|1O|B|1P|1|1Q]]|C|$]]|$1|O|3|P|5|6|7|1R|8|@]|9|@]|C|$]]|$1|Q|3|R|5|J|7|1S|8|@]|9|@]|C|$K|L]]|$1|S|3|T|5|6|7|1T|8|@]|9|@]|C|$]]|$1|U|3|V|5|J|7|1U|8|@]|9|@]|C|$K|L]]|$1|W|3|-4|5|6|7|1V|8|@]|9|@]|C|$]]]|X|$Y|$5|Z|10|11|C|$12|13]]|14|$5|Z|10|11|C|$12|15]]|16|$5|Z|10|11|C|$12|17]]|18|$5|Z|10|11|C|$12|19]]]]

Adapted from answer here: <a href="https://stackoverflow.com/a/7505528/921224">https://stackoverflow.com/a/7505528/921224</a>

<h2>javafx.scene.control.Alert</h2>

For a an in depth description of how to use JavaFX dialogs see: <a href="http://code.makery.ch/blog/javafx-dialogs-official/" rel="nofollow noreferrer">JavaFX Dialogs (official)</a> by code.makery. They are much more powerful and flexible than Swing dialogs and capable of far more than just popping up messages.

<pre><code>import javafx.scene.control.Alert
import javafx.scene.control.Alert.AlertType;
import javafx.application.Platform;

public class ClassNameHere
{

 public static void infoBox(String infoMessage, String titleBar)
 {
 /* By specifying a null headerMessage String, we cause the dialog to
 not have a header */
 infoBox(infoMessage, titleBar, null);
 }

 public static void infoBox(String infoMessage, String titleBar, String headerMessage)
 {
 Alert alert = new Alert(AlertType.INFORMATION);
 alert.setTitle(titleBar);
 alert.setHeaderText(headerMessage);
 alert.setContentText(infoMessage);
 alert.showAndWait();
 }
}
</code></pre>

One thing to keep in mind is that JavaFX is a single threaded GUI toolkit, which means this method should be called directly from the JavaFX application thread. If you have another thread doing work, which needs a dialog then see these SO Q&amp;As: <a href="https://stackoverflow.com/questions/14941084/javafx2-can-i-pause-a-background-task-service">JavaFX2: Can I pause a background Task / Service?</a> and <a href="https://stackoverflow.com/questions/13784333/platform-runlater-and-task-javafx">Platform.Runlater and Task Javafx</a>.

To use this method call:

<pre><code>ClassNameHere.infoBox("YOUR INFORMATION HERE", "TITLE BAR MESSAGE");
</code></pre>

or

<pre><code>ClassNameHere.infoBox("YOUR INFORMATION HERE", "TITLE BAR MESSAGE", "HEADER MESSAGE");
</code></pre>

blocks|key|718296|text|从java+8u40开始：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|718297|Alert+alert+=+new+Alert(AlertType.INFORMATION,+"Content+here",+ButtonType.OK);
alert.getDialogPane().setMinHeight(Region.USE_PREF_SIZE);
alert.show();|code-block|syntax|javascript|718298|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This works since java 8u40:

<pre><code>Alert alert = new Alert(AlertType.INFORMATION, "Content here", ButtonType.OK);
alert.getDialogPane().setMinHeight(Region.USE_PREF_SIZE);
alert.show();
</code></pre>

blocks|key|502434|text|要使Clairton+Luz工作，您需要在FXApplicationThread中运行，并将代码片段插入到Platform.runLater方法中：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|502435|++Platform.runLater(()+->+{
++++++++++++++++++++++++Alert+alert+=+new+Alert(Alert.AlertType.ERROR);
++++++++++++++++++++++++alert.setTitle("Error+Dialog");
++++++++++++++++++++++++alert.setHeaderText("No+information.");

++++++++++++++++++++++++alert.showAndWait();
++++++++++++++++++++}
++++++++++++);|code-block|syntax|javascript|502436|否则，您将得到：java.lang.IllegalStateException:+Not+on+FX+application+thread|502437|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/36938485/8370915^0|L|J|1H|H|2|C|0|0|0|8|1P|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]|$9|X|A|Y|B|C]]|D|@$9|Z|A|10|1|11]]|E|$]]|$1|F|3|G|5|H|7|12|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|13|8|@$9|14|A|15|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|16|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]]]

To make an example of <a href="https://stackoverflow.com/a/36938485/8370915">Clairton Luz</a> work, you need to run in the <code>FXApplicationThread</code> and insert into <code>Platform.runLater</code> method your code snippet:

<pre><code> Platform.runLater(() -&gt; {
 Alert alert = new Alert(Alert.AlertType.ERROR);
 alert.setTitle("Error Dialog");
 alert.setHeaderText("No information.");

 alert.showAndWait();
 }
 );
</code></pre>

Otherwise, you'll get: <code>java.lang.IllegalStateException: Not on FX application thread</code>

How do I create and show common dialogs (Error, Warning, Confirmation) in JavaFX 2.0? I can't find any "standard" classes like <code>Dialog</code>, <code>DialogBox</code>, <code>Message</code> or something.

How to create and show common dialog (Error, Warning, Confirmation) in JavaFX 2.0?

如何在JavaFX 2.0中创建和显示常见对话框(错误、警告、确认)？我找不到任何像Dialog、DialogBox、Message之类的“标准”类。

问如何在JavaFX 2.0中创建和显示通用对话框(错误、警告、确认)？
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何在JavaFX 2.0中创建和显示通用对话框(错误、警告、确认)？EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何在JavaFX 2.0中创建和显示通用对话框(错误、警告、确认)？
EN