私はブラックベリーが初めてです。私は今アプリケーションを作成しています。私の要件は、カメラが自動的に呼び出されたときに画像がキャプチャされることです。ブラックベリーで可能ですか。私はこのコードを使用していますが、すべてが機能しますが、画像を自動的にキャプチャすることはできません。コードで何を変更するかを提案してください。アプリケーションで機能します。
public class Test extends MainScreen implements FileSystemJournalListener {
long _lastUSN;
ButtonField btnTakePhoto;
String capturedImgPath = "";
VideoControl videoControl;
Timer objTimer;
Player player;
public Test()
{
super();
btnTakePhoto = new ButtonField("Take Picture",ButtonField.VCENTER|ButtonField.BOTTOM);
btnTakePhoto.setChangeListener(TakePictureListener);
HorizontalFieldManager hfm=new HorizontalFieldManager();
hfm.add(btnTakePhoto);
add(hfm);
System.out.println("Inside Construct");
UiApplication.getUiApplication().addFileSystemJournalListener(this);
_lastUSN = FileSystemJournal.getNextUSN();
this.setTitle("Camera Class");
}
FieldChangeListener TakePictureListener = new FieldChangeListener(){
public void fieldChanged(Field field, int context) {
System.out.println("Inside fieldChanged");
doTakePicture();
}
};
public void doTakePicture(){
try
{
System.out.println("Inside doTakePicture");
Invoke.invokeApplication(Invoke.APP_TYPE_CAMERA,new CameraArguments());
player = javax.microedition.media.Manager.createPlayer("capture://video");
player.realize();
videoControl = (VideoControl) player.getControl("VideoControl");
player.start();
if(videoControl!=null)
{
Field videoField = (Field) videoControl.initDisplayMode (VideoControl.USE_GUI_PRIMITIVE, "net.rim.device.api.ui.Field");
videoControl.setDisplayFullScreen(true);
videoControl.setVisible(true);
add(videoField);
// System.out.println("videoControl=="+videoControl);
// String imagetype = "encoding=jpeg&width=1024&height=768&quality=fine";
//
// byte[] snapshot = videoControl.getSnapshot(imagetype);
// Bitmap image = Bitmap.createBitmapFromBytes(snapshot, 0, snapshot.length, 5);
// System.out.println("snapshot=="+snapshot);
// System.out.println("image=="+image);
// BitmapField bitmapField = new BitmapField();
// bitmapField.setBitmap(image);
// this.add(bitmapField);
// if(videoField != null)
// {
// add(videoField);
//
// }
}
}
catch(Exception ex)
{
System.out.println(ex);
}
}
public boolean invokeAction(int action)
{
System.out.println("Action=="+action);
boolean handled = super.invokeAction(action);
//handled=true;
System.out.println("handled=="+handled);
System.out.println("Inside Invoke Camera");
if(!handled)
{
System.out.println("Inside First If Blog");
if(action == ACTION_INVOKE)
{
System.out.println("Inside Second If Blog");
try
{
System.out.println("If Blog of invoke Action");
System.out.println("videoControl11=="+videoControl);
String imagetype = "encoding=jpeg&width=1024&height=768&quality=fine";
byte[] snapshot = videoControl.getSnapshot(imagetype);
Bitmap image = Bitmap.createBitmapFromBytes(snapshot, 0, snapshot.length, 5);
System.out.println("snapshot=="+snapshot);
System.out.println("image=="+image);
BitmapField bitmapField = new BitmapField();
bitmapField.setBitmap(image);
this.add(bitmapField);
}
catch(Exception e)
{
Dialog.alert(e.toString());
}
}
}
return handled;
}
public void fileJournalChanged()
{
System.out.println("Inside fileJournalChanged");
long nextUSN = FileSystemJournal.getNextUSN();
String msg = null;
String path = null;
for (long lookUSN = nextUSN - 1; lookUSN >= _lastUSN && msg == null; --lookUSN)
{
FileSystemJournalEntry entry = FileSystemJournal.getEntry(lookUSN);
if (entry == null)
{
break;
}
path = entry.getPath();
System.out.println("Path=="+path);
if (path != null)
{
if (path.endsWith("png") || path.endsWith("jpg") || path.endsWith("bmp") || path.endsWith("gif") ){
switch (entry.getEvent())
{
case FileSystemJournalEntry.FILE_ADDED:
System.out.println("Inside FILE_ADDED");
msg = "File was added.";
break;
case FileSystemJournalEntry.FILE_DELETED:
System.out.println("Inside FILE_DELETED");
msg = "File was deleted.";
break;
}
}
}
}
_lastUSN = nextUSN;
if ( msg != null )
{
Dialog.alert(msg);
capturedImgPath = path;
closeCamera();
}
}
private void closeCamera()
{
int menuOrder =6;
System.out.println("Inside Close Camera");
EventInjector.invokeEvent(new EventInjector.KeyCodeEvent(EventInjector.KeyCodeEvent.KEY_DOWN, (char)Keypad.KEY_MENU, KeypadListener.STATUS_NOT_FROM_KEYPAD, 0));
EventInjector.invokeEvent(new EventInjector.TrackwheelEvent(EventInjector.TrackwheelEvent.THUMB_ROLL_DOWN, menuOrder, KeypadListener.STATUS_NOT_FROM_KEYPAD));
EventInjector.invokeEvent(new EventInjector.TrackwheelEvent(EventInjector.TrackwheelEvent.THUMB_CLICK, 1, KeypadListener.STATUS_NOT_FROM_KEYPAD));
Dialog.alert("The captured Image path is "+capturedImgPath);
}
}