查詢手機支持的多媒體類型和協議

2019-11-18 16:07:37

字體：大中小

來源：轉載

供稿：網友

import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
import javax.microedition.media.*;

public class MediaInformationMIDlet extends MIDlet implements CommandListener {
  PRivate Form mInformationForm;
  public void startApp() {
    if (mInformationForm == null) {
      mInformationForm =
          new Form("Content types and protocols");
      String[] contentTypes =
          Manager.getSupportedContentTypes(null);
      for (int i = 0; i < contentTypes.length; i++) {
        String[] protocols =
            Manager.getSupportedProtocols(contentTypes[i]);
        for (int j = 0; j < protocols.length; j++) {
          StringItem si = new StringItem(contentTypes[i] + ": ",
              protocols[j]);
          //si.setLayout(Item.LAYOUT_NEWLINE_AFTER);
          mInformationForm.append(si);
        }
      }
      Command exitCommand = new Command("Exit", Command.EXIT, 0);
      mInformationForm.addCommand(exitCommand);
      mInformationForm.setCommandListener(this);
    }
    Display.getDisplay(this).setCurrent(mInformationForm);
  }
  public void pauseApp() {}

  public void destroyApp(boolean unconditional) {}
  public void commandAction(Command c, Displayable s) {
    notifyDestroyed();
  }
}

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