Rename image name to datetime stamp

Rename image name to datetime stamp

How do i change the codes so that the image's name will be save as date
time stamp?
Button buttonTakePicture;
final int RESULT_SAVEIMAGE = 0;
/** Called when the activity is first created. */ @Override public void
onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);
setContentView(R.layout.camera_layout);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
getWindow().setFormat(PixelFormat.UNKNOWN); surfaceView =
(SurfaceView) findViewById(R.id.camerapreview); surfaceHolder =
surfaceView.getHolder(); surfaceHolder.addCallback(this);
surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
controlInflater = LayoutInflater.from(getBaseContext()); View
viewControl = controlInflater.inflate(R.layout.camera_control, null);
LayoutParams layoutParamsControl = new LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
this.addContentView(viewControl, layoutParamsControl);
buttonTakePicture = (Button) findViewById(R.id.takepicture);
buttonTakePicture.setOnClickListener(new Button.OnClickListener() {
public void onClick(View arg0) {
// TODO Auto-generated method stub
camera.takePicture(myShutterCallback, myPictureCallback_RAW,
myPictureCallback_JPG); } });
LinearLayout layoutBackground = (LinearLayout)
findViewById(R.id.background); layoutBackground.setOnClickListener(new
LinearLayout.OnClickListener() { public void onClick(View arg0) { // TODO
Auto-generated method stub buttonTakePicture.setEnabled(false);
camera.autoFocus(myAutoFocusCallback); } }); }
AutoFocusCallback myAutoFocusCallback = new AutoFocusCallback() { public
void onAutoFocus(boolean arg0, Camera arg1) { // TODO Auto-generated
method stub buttonTakePicture.setEnabled(true); } };
ShutterCallback myShutterCallback = new ShutterCallback() { public void
onShutter() { // TODO Auto-generated method stub
} };
PictureCallback myPictureCallback_RAW = new PictureCallback() { public
void onPictureTaken(byte[] arg0, Camera arg1) { // TODO Auto-generated
method stub
} };
PictureCallback myPictureCallback_JPG = new PictureCallback() { public
void onPictureTaken(byte[] arg0, Camera arg1) { // TODO Auto-generated
method stub /* * Bitmap bitmapPicture =
BitmapFactory.decodeByteArray(arg0, 0, * arg0.length); */
Uri uriTarget = getContentResolver().insert(
Media.EXTERNAL_CONTENT_URI, new ContentValues());
OutputStream imageFileOS; try {
imageFileOS = getContentResolver().openOutputStream(uriTarget);
imageFileOS.write(arg0);
imageFileOS.flush();
imageFileOS.close();
Toast.makeText(CameraActivity.this,"Image saved: " +
uriTarget.toString(),Toast.LENGTH_LONG).show();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace(); } catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace(); }
camera.startPreview(); } };
public void surfaceChanged(SurfaceHolder holder, int format, int width,int
height) { // TODO Auto-generated method stub if (previewing) {
camera.stopPreview(); previewing = false; }
if (camera != null) { try {
camera.setPreviewDisplay(surfaceHolder);
camera.startPreview();
previewing = true; } catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace(); } } }
public void surfaceCreated(SurfaceHolder holder) { // TODO Auto-generated
method stub camera = Camera.open(); }
public void surfaceDestroyed(SurfaceHolder holder) { // TODO
Auto-generated method stub camera.stopPreview(); camera.release(); camera
= null; previewing = false; } }