j2me プロジェクトに MMAPI(JSR135) を使用して写真を撮る機能を持たせたかったので、次のコードで HTC Diamond をチェックします。
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.midlet.MIDlet;
public class jsrtest extends MIDlet implements Runnable,CommandListener{
Form form;
Thread thread;
Command c=new Command("Exit",Command.EXIT,0);
public jsrtest()
{
Display.getDisplay(this).setCurrent(form=new Form("JSR Test"));
form.addCommand(c);
form.setCommandListener(this);
(thread=new Thread(this)).start();
}
protected void destroyApp(boolean u){
super.notifyDestroyed();
}
protected void pauseApp() {
}
protected void startApp(){
}
public void run() {
checkJSR("MIDP2.0","javax.microedition.lcdui.game.GameCanvas");
checkJSR("CLDC1.1","java.lang.Float");
checkJSR("MMAPI","javax.microedition.media.Player");
checkJSR("WMAPI","javax.wireless.messaging.Message");
checkJSR("JSR75","javax.microedition.io.file.FileConnection");
checkJSR("JSR082","javax.bluetooth.UUID");
checkJSR("JSR135","javax.microedition.media.Control");
checkJSR("JSR135_videocontrol","javax.microedition.media.control.VideoControl");
checkJSR("JSR179","javax.microedition.location.Location");
checkJSR("JSR180","javax.microedition.sip.SipConnection");
checkJSR("JSR184","javax.microedition.m3g.Mesh");
checkJSR("JSR211","javax.microedition.content.Registry");
checkJSR("JSR226","javax.microedition.m2g.SVGImage");
checkJSR("JSR229","javax.microedition.payment.TransactionRecord");
checkJSR("JSR234","javax.microedition.amms.Module");
checkJSR("JSR238","javax.microedition.global.Formatter");
checkJSR("JSR239","javax.microedition.khronos.egl.EGL");
}
private void checkJSR(String jsr,String className)
{
try {
Class.forName(className);
form.append(jsr+" Supproted\n");
} catch (ClassNotFoundException e) {
form.append(jsr+" Not Supproted\n");
}
}
public void commandAction(Command cmd, Displayable disp) {
this.destroyApp(false);
}
}
これは、MMAPI が HTC Diamond でサポートされていることを示しています。
そこで、HTC Diamond で次のコードをテストして、カメラが機能するが失敗するかどうかを確認します。
private void test(){
Player p;
VideoControl vc;
try{
p = Manager.createPlayer("capture://video");
p.realize();
vc = (VideoControl) p.getControl("VideoControl");
form.append(new StringItem("mmmmmmmm",""));
if (vc != null) {
form.append((Item)vc.initDisplayMode(VideoControl.USE_GUI_PRIMITIVE, null));
}
p.start();
}catch(Exception e){
e.printStackTrace();
}
}
上記のコードは、JAVA ME Platform SDK 3 で正常に動作します。携帯電話で MMAPI が動作しない理由を誰か教えてもらえますか?