Java Tutorial/J2ME/VideoControl — различия между версиями

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м (1 версия)
 
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Текущая версия на 05:00, 1 июня 2010

Use VideoControl

import java.io.InputStream;
import javax.microedition.lcdui.Alert;
import javax.microedition.lcdui.rumand;
import javax.microedition.lcdui.rumandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.Item;
import javax.microedition.media.Manager;
import javax.microedition.media.Player;
import javax.microedition.media.control.VideoControl;
import javax.microedition.midlet.MIDlet;
public class VideoMIDlet extends MIDlet implements CommandListener, Runnable {
  private Display mDisplay;
  private Form mMainScreen;
  private Item mVideoItem;
  private VideoControl mVidc;
  private Command mPlayCommand;
  private Player mPlayer = null;
  public void startApp() {
    mDisplay = Display.getDisplay(this);
    if (mMainScreen == null) {
      mMainScreen = new Form("Video MIDlet");
      mMainScreen.addCommand(new Command("Exit", Command.EXIT, 0));
      mPlayCommand = new Command("Play", Command.SCREEN, 0);
      mMainScreen.addCommand(mPlayCommand);
      mMainScreen.setCommandListener(this);
    }
    mDisplay.setCurrent(mMainScreen);
  }
  public void pauseApp() {
  }
  public void destroyApp(boolean unconditional) {
    if (mPlayer != null) {
      mPlayer.close();
    }
  }
  public void commandAction(Command c, Displayable s) {
    if (c.getCommandType() == Command.EXIT) {
      destroyApp(true);
      notifyDestroyed();
    } else {
      Form waitForm = new Form("Loading...");
      mDisplay.setCurrent(waitForm);
      Thread t = new Thread(this);
      t.start();
    }
  }
  public void run() {
    playFromResource();
  }
  private void playFromResource() {
    try {
      InputStream in = getClass().getResourceAsStream("/f.mpg");
      mPlayer = Manager.createPlayer(in, "video/mpeg");
      // player.start();
      mPlayer.realize();
      if ((mVidc = (VideoControl) mPlayer.getControl("VideoControl")) != null) {
        mVideoItem = (Item) mVidc.initDisplayMode(VideoControl.USE_GUI_PRIMITIVE, null);
        mMainScreen.append(mVideoItem);
      }
      mPlayer.start();
      mMainScreen.removeCommand(mPlayCommand);
      mDisplay.setCurrent(mMainScreen);
    } catch (Exception e) {
      showException(e);
      return;
    }
  }
  private void showException(Exception e) {
    Alert a = new Alert("Exception", e.toString(), null, null);
    a.setTimeout(Alert.FOREVER);
    mDisplay.setCurrent(a, mMainScreen);
  }
}