Does anybody has a clue? no one had implemented a camera on
surfaceview and take a picture?
On Aug 25, 2010, at 10:35 PM, Pedro Teixeira wrote:
I have my code all set and done.. no errors at all..everything looks
fine.. how/where/why doesnt takes a picture? Can anyone help me with
this? this is a internet tutorial custumized for needs..
public class thenNnowMode extends Activity implements
SurfaceHolder.Callback{
SurfaceView tnnSurfaceView;
SurfaceHolder mSurfaceHolder;
Camera tnnCamera;
boolean mPreviewRunning = false;
private Context mContext = this;
ImageView transparencyPreview;
Bitmap TNNPicture;
String TNNPicturePath;
TextView blinktext;
Animation animation;
static final int FOTO_MODE = 0;
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.thennnowmode);
tnnSurfaceView = (SurfaceView)
findViewById(R.id.surface_camera);
mSurfaceHolder = tnnSurfaceView.getHolder();
mSurfaceHolder.addCallback(this);
mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
protected void onRestoreInstanceState(Bundle savedInstanceState){
super.onRestoreInstanceState(savedInstanceState);
}
protected void onResume(){
super.onResume();
}
protected void onSaveInstanceState(Bundle outState){
super.onSaveInstanceState(outState);
}
protected void onStop(){
super.onStart();
}
@Override
// Create the Surface and Open the Camera
public void surfaceCreated(SurfaceHolder holder) {
tnnCamera = Camera.open();
}
@Override
// Reacts for camera changes
public void surfaceChanged(SurfaceHolder holder, int format, int
w,int h) {
if (mPreviewRunning) {
tnnCamera.stopPreview();
}
Camera.Parameters p = tnnCamera.getParameters();
p.setPreviewSize(w, h);
tnnCamera.setParameters(p);
try {
tnnCamera.setPreviewDisplay(holder);
} catch (IOException e) {
e.printStackTrace();
}
tnnCamera.startPreview();
mPreviewRunning = true;
}
@Override
// When the camera is closed
public void surfaceDestroyed(SurfaceHolder holder) {
tnnCamera.stopPreview();
mPreviewRunning = false;
tnnCamera.release();
}
// Metodo on click of the screen takes a picture
public void onClick(View arg0) {
tnnCamera.takePicture(null, mPictureCallback, mPictureCallback);
}
// When the picure is taken. This method gives the byte[] of the
picture
Camera.PictureCallback mPictureCallback = new
Camera.PictureCallback() {
public void onPictureTaken(byte[] imageData, Camera c) {
if (imageData != null) {
Intent mIntent = new Intent();
// salva a foto
previewAndStoreInfo(mContext, imageData, 50,
"fotoTirada");
tnnCamera.startPreview();
setResult(FOTO_MODE, mIntent);
finish();
}
}
};
public static boolean previewAndStoreInfo(Context mContext, byte[]
imageData,int quality, String expName) {
File sdImageMainDirectory = new File("/sdcard");
FileOutputStream fileOutputStream = null;
String nameFile;
try {
BitmapFactory.Options options=new
BitmapFactory.Options();
options.inSampleSize = 5;
Bitmap myImage =
BitmapFactory.decodeByteArray(imageData, 0,
imageData.length,options);
fileOutputStream = new
FileOutputStream(sdImageMainDirectory.toString() +"/" + expName +
".jpg");
BufferedOutputStream bos = new
BufferedOutputStream(fileOutputStream);
myImage.compress(CompressFormat.JPEG, quality, bos);
bos.flush();
bos.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return true;
}
}
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Pedro Teixeira
www.pedroteixeira.org
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