我在动态设置锚窗格的背景图像时遇到问题。 为了开发目的,我将外部资源放在项目的dist文件夹中,因此可以使用这些文件。
AnchorPane的代码:
AnchorPane root = new AnchorPane();
// this works fine, styles inside the css are used in components on the root pane
root.getStylesheets().add("file:/D:/ProjectFolder/global.css");
我无法弄清楚如何设置背景图片的路径。 通过CSS和JavaFX引用读取应该相对于css文件给出路径。我还试图破坏URL和URI以及绝对路径。
// path of compiled jar
"D:/ProjectFolder/project.jar"
// path of css file
"D:/ProjectFolder/global.css"
// path of background file
"D:/ProjectFolder/Resources/Wallpapers/worldmap.jpg"
所有这些都不起作用:
root.setStyle("-fx-background-image: url('Resources/Wallpapers/worldmap.jpg'); -fx-background-repeat: stretch; -fx-background-size: stretch; -fx-background-position: center center;");
root.setStyle("-fx-background-image: url('/Resources/Wallpapers/worldmap.jpg'); -fx-background-repeat: stretch; -fx-background-size: stretch; -fx-background-position: center center;");
root.setStyle("-fx-background-image: url('./Resources/Wallpapers/worldmap.jpg'); -fx-background-repeat: stretch; -fx-background-size: stretch; -fx-background-position: center center;");
root.setStyle("-fx-background-image: url('@Resources/Wallpapers/worldmap.jpg'); -fx-background-repeat: stretch; -fx-background-size: stretch; -fx-background-position: center center;");
root.setStyle("-fx-background-image: url('@/Resources/Wallpapers/worldmap.jpg'); -fx-background-repeat: stretch; -fx-background-size: stretch; -fx-background-position: center center;");
root.setStyle("-fx-background-image: url('@./Resources/Wallpapers/worldmap.jpg'); -fx-background-repeat: stretch; -fx-background-size: stretch; -fx-background-position: center center;");
root.setStyle("-fx-background-image: url('D:/ProjectFolder/Resources/Wallpapers/worldmap.jpg'); -fx-background-repeat: stretch; -fx-background-size: stretch; -fx-background-position: center center;");
root.setStyle("-fx-background-image: url('file:/D:/ProjectFolder/Resources/Wallpapers/worldmap.jpg'); -fx-background-repeat: stretch; -fx-background-size: stretch; -fx-background-position: center center;");
(旁边的文件存在,我检查了文件夹和文件的名称,这也是正确的)
出于测试目的:
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.AnchorPane;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
public class BackGroundTest extends Application {
private int backgroundtest = 0;
private AnchorPane root;
@Override
public void start(Stage primaryStage) {
Button btn = new Button();
btn.setText("Test Background");
btn.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
switch (backgroundtest) {
case 0: {
root.setStyle("-fx-background-image: url('Resources/Wallpapers/worldmap.jpg'); -fx-background-repeat: stretch; -fx-background-size: stretch; -fx-background-position: center center;");
break;
}
case 1: {
root.setStyle("-fx-background-image: url('/Resources/Wallpapers/worldmap.jpg'); -fx-background-repeat: stretch; -fx-background-size: stretch; -fx-background-position: center center;");
break;
}
case 2: {
root.setStyle("-fx-background-image: url('./Resources/Wallpapers/worldmap.jpg'); -fx-background-repeat: stretch; -fx-background-size: stretch; -fx-background-position: center center;");
break;
}
case 3: {
root.setStyle("-fx-background-image: url('@Resources/Wallpapers/worldmap.jpg'); -fx-background-repeat: stretch; -fx-background-size: stretch; -fx-background-position: center center;");
break;
}
case 4: {
root.setStyle("-fx-background-image: url('@/Resources/Wallpapers/worldmap.jpg'); -fx-background-repeat: stretch; -fx-background-size: stretch; -fx-background-position: center center;");
break;
}
case 5: {
root.setStyle("-fx-background-image: url('@./Resources/Wallpapers/worldmap.jpg'); -fx-background-repeat: stretch; -fx-background-size: stretch; -fx-background-position: center center;");
break;
}
case 6: {
root.setStyle("-fx-background-image: url('D:/ProjectFolder/Resources/Wallpapers/worldmap.jpg'); -fx-background-repeat: stretch; -fx-background-size: stretch; -fx-background-position: center center;");
break;
}
case 7: {
root.setStyle("-fx-background-image: url('file:/D:/ProjectFolder/Resources/Wallpapers/worldmap.jpg'); -fx-background-repeat: stretch; -fx-background-size: stretch; -fx-background-position: center center;");
break;
}
}
backgroundtest++;
if (backgroundtest == 8) {backgroundtest = 0;}
}
});
root = new AnchorPane();
root.getStylesheets().add("file:/D:/ProjectFolder/global.css");
StackPane stack = new StackPane();
root.getChildren().add(stack);
AnchorPane.setBottomAnchor(stack, 0d);
AnchorPane.setLeftAnchor(stack, 0d);
AnchorPane.setRightAnchor(stack, 0d);
AnchorPane.setTopAnchor(stack, 0d);
stack.getChildren().add(btn);
Scene scene = new Scene(root, 800, 600);
primaryStage.setTitle("Test Background");
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);
}
}
css文件:
.button {
-fx-background-color:
rgb(0, 50, 0, 0.08),
rgb(0, 0, 0, 0.8),
#090a0c,
linear-gradient(#4a5661 0%, #1f2429 20%, #1f242a 80%),
linear-gradient(#242a2e, #23282e),
radial-gradient(center 50% 0%, radius 100%, rgba(135,142,148,0.9), rgba(255,255,255,0));
-fx-background-radius: 7, 6, 5, 4, 3, 5;
-fx-background-insets: -3 -3 -4 -3, -3, 0, 1, 2, 0;
-fx-font-family: "Arial";
-fx-font-size: 14;
-fx-text-fill: white;
-fx-padding: 5 10 5 10;
-fx-effect: dropshadow( one-pass-box , rgb(0, 255, 0, 0.6), 10, 0.5 , 0 , 1 );
}
如果我将css和图像包含在jar文件中,这一切都很好,但我想使用外部文件。像所有引用一样设置相对于css文件的路径似乎不起作用,那么正确的路径是什么?
答案 0 :(得分:1)
如果我使用它将它放在URL中,这似乎现在有效。
String filename = "worldmap.jpg";
HostServices services = this.getHostServices();
String url = services.resolveURI(services.getCodeBase(), "Resources/Wallpapers/" + filename);
结果字符串与我的情况7相同,我不知道为什么它之前没有用,现在也没有。
我第一次在SceneController的构造函数中设置背景,现在我将它设置为一个额外的方法,在场景添加到舞台后调用,也许这有一些事情要做,但我无法弄清楚错误真的在哪里。
对于遇到类似问题的人的答案,最好使用HostServices来解析上述示例中的路径。
答案 1 :(得分:0)
不知道你是否正常工作,但这是正确答案:
root.setStyle("-fx-background-image: url('file://D:/ProjectFolder/Resources/Wallpapers/worldmap.jpg');");
文件实现应该是'file:// PATH'