我有一个MediaView,我想播放一个全屏视频。我只是找不到我的MediaView的合适的父母。它给了我这个错误javafx.scene.media.MediaView cannot be cast to javafx.scene.Parent
那是我的fxml文件
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.media.*?>
<?import javafx.scene.layout.AnchorPane?>
<MediaView fx:id="astrolabe_intro" fitHeight="200.0" fitWidth="200.0" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/8" fx:controller="astrolabe.astrolabe_introController" />那是我的控制器
import java.io.File;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.fxml.Initializable;
import javafx.scene.media.Media;
import javafx.scene.media.MediaPlayer;
public class astrolabe_introController implements Initializable {
String workingDir = System.getProperty("user.dir");
File video = new File(workingDir, "src/astrolabe/img/astrolab_movie.mp4");
Media m = new Media(video.toURI().toString());
MediaPlayer astrolabe_intro = new MediaPlayer(m);
@Override
public void initialize(URL arg0, ResourceBundle arg1) {
// TODO Auto-generated method stub
astrolabe_intro.play();
}
}发布于 2014-10-02 16:27:41
不能使用MediaView作为根节点,因为它不是从Parent扩展而来的。尝试将您的MediaView封装在Pane中。例如:
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.media.*?>
<?import javafx.scene.layout.AnchorPane?>
<AnchorPane fx:id="anchorPane" fitHeight="200.0" fitWidth="200.0" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/8" fx:controller="astrolabe.astrolabe_introController" >
<MediaView fx:id="astrolabe_intro"/>
</AnchorPane>N.B.您可能还需要为您的MediaView和MediaPlayer__定义不同的引用名。在上面的示例中,您将fx:id of MediaView和ref for MediaPlayer定义为astrolabe_intro
MediaView/MediaPlayer在这里和FXML在这里的一个简单例子
https://stackoverflow.com/questions/26148071
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