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我不明白爲什麼eclipse自從導入它後將無法識別EventHandler。這裏是我的代碼: 包應用程序;當我嘗試在Java中爲視頻媒體播放器創建播放按鈕時發生EventHandler錯誤
import java.awt.event.ActionEvent;
import com.sun.glass.ui.Accessible.EventHandler;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.Slider;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Priority;
import javafx.scene.media.MediaPlayer;
public class MediaBar extends HBox {
Slider time =new Slider();
Slider vol =new Slider();
Button playButton=new Button("||");
Label volume=new Label("Volume");
MediaPlayer player;
public MediaBar(MediaPlayer play){
player=play;
setAlignment(Pos.CENTER);
setPadding(new Insets(5,10,5,10));
vol.setPrefWidth(70);
vol.setMin(30);
vol.setValue(100);
HBox.setHgrow(time, Priority.ALWAYS);
playButton.setPrefWidth(30);
getChildren().add(playButton);
getChildren().add(time);
getChildren().add(volume);
getChildren().add(vol);
playButton.setOnAction(new EventHandler<ActionEvent>(){
public void handle(ActionEvent e){
Status status=player.getStatus();
if(status==Status.Playing){
if(player.getCurrentTime().greaterThanOrEqualTo(player.getTotalDuration())){
player.seek(player.getStartTime());
player.play();
}
else{
player.pause();
playerButton.setText(">");
}
}
if(status==Status.PAUSE ||status==Status.HALTED||status==Status.STOPPED){
player.play();
playButton.setText("||");
}
}
});
}
}
以下是錯誤消息:
The type Accessible.EventHandler is not generic; it cannot be parameterized with arguments <ActionEvent>
我在做什麼錯?