java - How to properly set up a media player javafx -

i have created media player method javafx called upon startup (below media player). problem pauses whenever interact scroll pane dragging or zooming player pauses , not start again. why case , how may fix this(included full application if try it).

method(live code)

    private static void musicplayer() {     if(musiclist.peek() == null)     {         return;     }     mediaplayer mediaplayer = new mediaplayer(new media(new file(musiclist.poll()).touri().tostring()));     mediaplayer.setonready(() -> {         mediaplayer.play();         mediaplayer.setonendofmedia(() -> {             mediaplayer.dispose();             musicplayer();         });     }); } 

minimal

package minimalist;  import java.io.file; import java.io.ioexception; import java.nio.file.files; import java.nio.file.paths; import java.util.linkedlist; import java.util.list; import java.util.queue; import java.util.stream.collectors;  import javafx.application.application; import javafx.scene.scene; import javafx.scene.control.scrollpane; import javafx.scene.image.image; import javafx.scene.image.imageview; import javafx.scene.layout.stackpane; import javafx.scene.media.media; import javafx.scene.media.mediaplayer; import javafx.stage.stage;  public class minimal extends application{      private static queue<string> musiclist = new linkedlist<string>();      public static void main(string[] args) throws ioexception {         list<string> result = files.find(paths.get(".\\music"), 100,                 (p, a) -> p.tostring().tolowercase().endswith(".mp3"))                 .map(path -> path.tostring())                 .collect(collectors.tolist());         for(int = 0; < result.size(); a++)         {             musiclist.add(result.get(a));         }         musicplayer();         launch(args);     }      @override     public void start(stage primarystage) throws exception {         scrollpane scrollpane = new scrollpane();         image image = new image("https://upload.wikimedia.org/wikipedia/commons/7/70/kusatma_zonaro.jpg");         imageview imageview = new imageview(image);         scrollpane.setcontent(imageview);         scrollpane.setpannable(true);         scene scene = new scene(new stackpane(scrollpane));         primarystage.setscene(scene);         primarystage.setfullscreen(true);         primarystage.show();     }      private static void musicplayer() {         if(musiclist.peek() == null)         {             return;         }         mediaplayer mediaplayer = new mediaplayer(new media(new file(musiclist.poll()).touri().tostring()));         mediaplayer.setonready(() -> {             mediaplayer.play();             mediaplayer.setonendofmedia(() -> {                 mediaplayer.dispose();                 musicplayer();             });         });     } } 

this seems behave in of fragile manner.

i not recommend launching media player main method. documentation bit lacking on threading policy mediaplayer, since launching regular javafx application seem sensible follow usual rules , call methods on javafx application thread. on system, unable music playing way had set up.

i had sporadic issues getting start playing after changing that; guessed maybe leaving system resources tied after exiting, modified code ensure player disposed when application ended. after both changes, behaved expected. @ no point though did have issues associated user input; guess these caused launching media player main thread instead of fx application thread, , system-dependent.

here's code worked fine me. cleaned of redundancy in code (iterating through paths convert them strings convert files can convert string representation of url seems circuitous; create unnecessary list in process, etc) , renamed things abides proper naming conventations):

import java.io.ioexception; import java.nio.file.files; import java.nio.file.path; import java.nio.file.paths; import java.util.linkedlist; import java.util.queue;  import javafx.application.application; import javafx.scene.scene; import javafx.scene.control.scrollpane; import javafx.scene.image.image; import javafx.scene.image.imageview; import javafx.scene.layout.stackpane; import javafx.scene.media.media; import javafx.scene.media.mediaplayer; import javafx.stage.stage;  public class minimal extends application{      private queue<path> musiclist = new linkedlist<>();      private mediaplayer mediaplayer ;      public static void main(string[] args) {         launch(args);     }      @override     public void start(stage primarystage) throws exception {          // should have album. edit path if musical taste poor.         files.find(paths.get(system.getproperty("user.home"),"music/itunes/itunes media/music/thievery corporation/saudade/"), 100,                 (p, a) -> p.tostring().tolowercase().endswith(".m4a"))                 .foreach(musiclist::add);          playmusic();          scrollpane scrollpane = new scrollpane();         image image = new image("https://upload.wikimedia.org/wikipedia/commons/7/70/kusatma_zonaro.jpg");         imageview imageview = new imageview(image);         scrollpane.setcontent(imageview);         scrollpane.setpannable(true);         scene scene = new scene(new stackpane(scrollpane));         primarystage.setscene(scene);         primarystage.setfullscreen(true);         primarystage.show();      }      @override     public void stop() {         if (mediaplayer != null) {             mediaplayer.stop();             mediaplayer.dispose();         }     }      private void playmusic() {         if(musiclist.peek() == null)         {             return;         }         mediaplayer = new mediaplayer(new media(musiclist.poll().touri().tostring()));         mediaplayer.setonready(() -> {             mediaplayer.play();             mediaplayer.setonendofmedia(() -> {                 mediaplayer.dispose();                 playmusic();             });         });      } }