Part one Part TWO Part Three Part FOUR

Part one 绪论

Part TWO 概要

Part Three 需求

Part FOUR 设计

Part FIVE 程序

界面模块分析 1：//需要把多媒体文件放置到运行的目录下 private static final String myurl ="D: \张艺兴. mp 4"; public void start(Stage primary. Stage) throws Exception{ File file=new File(myurl); Group root = new Group(); //设置界面 Scene scene = new Scene(root, 1280, 720); // Media media = new Media(MEDIA_URL); Media media = new Media(file. to. URI(). to. String()); //创建播放器对象，控制媒体播放行为 Media. Player media. Player=new Media. Player(media); media. Player. set. Auto. Play(true); //设置自动播放 5. media. Player. set. Cycle. Count(Media. Player. INDEFINITE); //设置循环播放（设置播放次数） Controller media. Control=new Controller(media. Player); scene. set. Root(media. Control); //Parent root = FXMLLoader. load(get. Class(). get. Resource("sample. fxml")); primary. Stage. set. Title("media. Player"); primary. Stage. set. Scene(scene); primary. Stage. show(); }

界面模块分析 private Media. Player mp; private Media. View media. View; //父类窗口 private final boolean repeat = false; //记录视频是否重 复播放 private boolean stop. Requested = false; //记录视频是否停 止 private boolean at. End. Of. Media = false; private Duration duration; //记录视频持续时间 private Slider time. Slider; private Label play. Time; private Slider volume. Slider; private HBox media. Bar; public Controller(final Media. Player mp) { this. mp = mp; set. Style("-fx-background-color: #bfc 2 c 7; "); media. View = new Media. View(mp); Pane mv. Pane = new Pane() {}; mv. Pane. get. Children(). add(media. View); mv. Pane. set. Style("-fxbackground-color: black; "); set. Center(mv. Pane); media. Bar = new HBox(); media. Bar. set. Alignment(Pos. CENTER); media. Bar. set. Padding(new jav afx. geometry. Insets(5, 10, 5, 10)); media. Bar. set. Padding(new Ins ets(5, 10, 5, 10)); Border. Pane. set. Alignment(me dia. Bar, Pos. CENTER); final Button play. Button = new Button(">");

音量模块分析 Label volume. Label = new Label("Vol: "); media. Bar. get. Children(). add(volume. Label); // Add Volume slider volume. Slider = new Slider(); volume. Slider. set. Pref. Width(70); volume. Slider. set. Max. Width( Region. USE_PREF_SIZE); volume. Slider. set. Min. Width(30); volume. Slider. value. Property(). add. Listener(new Invalidatio n. Listener() { public void invalidated(Observable ov) { if (volume. Slider. is. Value. Changing()) { mp. set. Volume(volume. Slider. get. Valu e() / 100. 0); } } }); media. Bar. get. Children(). add(volume. Slider); set. Bottom(media. Bar);

暂停模块分析 //设置播放按钮动作 public void handle(Action. Event e) { Media. Player. Status status = mp. get. Status(); if (status == Media. Player. Status. UNKNOWN || status == Media. Player. Status. HALTED) { // don't do anything in t hese states return; } //当资源处于暂停或停止状态时 if (status == Media. Player. Status. PAUSED || status == Media. Player. Status. READY || status == Media. Player. Status. STOPPED) { // rewind the movie if we're sitting at the end if (at. End. Of. Media) { mp. seek(mp. get. Start. Time()); at. End. Of. Media = false; } mp. play(); } else { mp. pause(); } }

进度条模块分析 // Add spacer. Label spacer = new Label(" "); media. Bar. get. Children(). add(spacer); // Add Time label. Label time. Label = new Label("Time: "); media. Bar. get. Children(). add(time. Label); // Add time slidertime. Slider = new Slider(); HBox. set. Hgrow(time. Slider, Priority. ALWAYS); time. Slider. set. Min. Width(50); time. Slider. set. M ax. Width(Double. MAX_VALUE); time. Slider. value. Property(). add. Lis tener(new Invalidation. Listener() {public void invalidated(Observable ov) {if (time. Slider. is. Value. Changing()) {// multiply duration by percentage calculated by slider positionmp. seek(duration. multiply(time. Slider. get. Value() / 100. 0)); }}}); media. Bar. get. Children(). add(time. Slider);

Part SIX 运行

Part SIX 结论

Thank you