StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POTime Stamp image taken from Default Camera
text
Body
copied!<p>I am trying to Time Stamp a image i am getting from the camera. This source is code provided from the developers website, and i am trying to make add on to it. With creating a time stamp bitmap and merging over the image taken by the camera via a intent. Please any insight, recommendations, or review would be extremely appreciated. I do have some code in the example i've created that i may or may not need. Android Developer Original Source Code <a href="http://developer.android.com/training/camera/photobasics.html" rel="nofollow">http://developer.android.com/training/camera/photobasics.html</a></p> <pre><code>public class PhotoIntentActivity extends Activity { private static final int ACTION_TAKE_PHOTO_B = 1; private static final String BITMAP_STORAGE_KEY = "viewbitmap"; private static final String IMAGEVIEW_VISIBILITY_STORAGE_KEY = "imageviewvisibility"; private ImageView mImageView; private Bitmap mImageBitmap; private String mCurrentPhotoPath; private static final String JPEG_FILE_PREFIX = "IMG_"; private static final String JPEG_FILE_SUFFIX = ".jpg"; private AlbumStorageDirFactory mAlbumStorageDirFactory = null; /* Photo album for this application */ private String getAlbumName() { return getString(R.string.album_name); } //change from private to public 5:32 7/13 public File getAlbumDir() { File storageDir = null; if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) { storageDir = mAlbumStorageDirFactory.getAlbumStorageDir(getAlbumName()); if (storageDir != null) { if (! storageDir.mkdirs()) { if (! storageDir.exists()){ Log.d("TimeStamped", "failed to create directory"); return null; } } } } else { Log.v(getString(R.string.app_name), "External storage is not mounted READ/WRITE."); } return storageDir; } //change from private to public 5:32 7/13 public File createImageFile() throws IOException { // Create an image file name String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date()); String imageFileName = JPEG_FILE_PREFIX + timeStamp + "_"; File albumF = getAlbumDir(); File imageF = File.createTempFile(imageFileName, JPEG_FILE_SUFFIX, albumF); return imageF; } //change from private to public 5:32 7/13 public File setUpPhotoFile() throws IOException { File f = createImageFile(); mCurrentPhotoPath = f.getAbsolutePath(); return f; } //change from private to public 5:32 7/13 public void setPic() { /* There isn't enough memory to open up more than a couple camera photos */ /* So pre-scale the target bitmap into which the file is decoded */ /* Get the size of the ImageView */ int targetW = mImageView.getWidth(); int targetH = mImageView.getHeight(); /* Get the size of the image */ BitmapFactory.Options bmOptions = new BitmapFactory.Options(); bmOptions.inJustDecodeBounds = true; BitmapFactory.decodeFile(mCurrentPhotoPath, bmOptions); int photoW = bmOptions.outWidth; int photoH = bmOptions.outHeight; /* Figure out which way needs to be reduced less */ int scaleFactor = 1; if ((targetW > 0) || (targetH > 0)) { scaleFactor = Math.min(photoW/targetW, photoH/targetH); } /* Set bitmap options to scale the image decode target */ bmOptions.inJustDecodeBounds = false; bmOptions.inSampleSize = scaleFactor; bmOptions.inPurgeable = true; /* Decode the JPEG file into a Bitmap */ // Bitmap bitmap = BitmapFactory.decodeFile(mCurrentPhotoPath, bmOptions); // // /* Associate the Bitmap to the ImageView */ // mImageView.setImageBitmap(bitmap); Bitmap bitmap = BitmapFactory.decodeFile(mCurrentPhotoPath, bmOptions); //Time Stamp the Bitmap Bitmap replacedBitmap = timestampItAndSave(bitmap); // replacing bitmap with a time stamped bitmap mImageView.setImageBitmap(replacedBitmap); mImageView.setVisibility(View.VISIBLE); } // new code //toEdit // new code 5:38 7/13 changed from private public Bitmap timestampItAndSave(Bitmap toEdit){ Bitmap dest = Bitmap.createBitmap(toEdit.getWidth(), toEdit.getHeight(), Bitmap.Config.ARGB_8888); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String dateTime = sdf.format(Calendar.getInstance().getTime()); // reading local time in the system Canvas cs = new Canvas(dest); Paint tPaint = new Paint(); tPaint.setTextSize(35); tPaint.setColor(Color.BLUE); tPaint.setStyle(Style.FILL); float height = tPaint.measureText("yY"); cs.drawBitmap(dest, 100 ,100, tPaint); cs.drawText(dateTime, 20f, height+15f, tPaint); try { dest.compress(Bitmap.CompressFormat.JPEG, 100, new FileOutputStream(new File(Environment.getExternalStorageDirectory() + "/timestamped"))); // dest.compress(Bitmap.CompressFormat.JPEG, 100, new FileOutputStream(new File(Environment.getExternalStorageDirectory() + "/timestamped"))); } catch (FileNotFoundException e) { e.printStackTrace(); return null; } return dest; } public Bitmap combineImages(Bitmap bitmap, Bitmap dest) { // can add a 3rd parameter 'String loc' if you want to save the new image - left some code to do that at the bottom Bitmap timestampedandmerged = null; int width, height = 0; if(bitmap.getWidth() > dest.getWidth()) { width = bitmap.getWidth(); height = bitmap.getHeight() + dest.getHeight(); } else { width = dest.getWidth(); height = bitmap.getHeight() + dest.getHeight(); } timestampedandmerged = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); Canvas comboImage = new Canvas(timestampedandmerged); comboImage.drawBitmap(bitmap, 0f, 0f, null); comboImage.drawBitmap(dest, 0f, bitmap.getHeight(), null); // this is an extra bit I added, just incase you want to save the new image somewhere and then return the location // new code 5:38 7/13 String tmpImg = String.valueOf(System.currentTimeMillis()) + ".png"; // new code 5:38 7/13 OutputStream os = null; try { os = new FileOutputStream(timestampedandmerged + tmpImg); timestampedandmerged.compress(CompressFormat.PNG, 100, os); } catch(IOException e) { Log.e("combineImages", "problem combining images", e); } // new code 5:38 7/13 return timestampedandmerged; } private void galleryAddPic() { Intent mediaScanIntent = new Intent("android.intent.action.MEDIA_SCANNER_SCAN_FILE"); File f = new File(mCurrentPhotoPath); Uri contentUri = Uri.fromFile(f); mediaScanIntent.setData(contentUri); this.sendBroadcast(mediaScanIntent); } private void dispatchTakePictureIntent(int actionCode) { Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); switch(actionCode) { case ACTION_TAKE_PHOTO_B: File f = null; try { f = setUpPhotoFile(); mCurrentPhotoPath = f.getAbsolutePath(); takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(f)); } catch (IOException e) { e.printStackTrace(); f = null; mCurrentPhotoPath = null; } break; default: break; } // switch startActivityForResult(takePictureIntent, actionCode); } private void handleBigCameraPhoto() { if (mCurrentPhotoPath != null) { setPic(); galleryAddPic(); mCurrentPhotoPath = null; } } Button.OnClickListener mTakePicOnClickListener = new Button.OnClickListener() { public void onClick(View v) { dispatchTakePictureIntent(ACTION_TAKE_PHOTO_B); } }; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mImageView = (ImageView) findViewById(R.id.imageView1); mImageBitmap = null; Button picBtn = (Button) findViewById(R.id.btnIntend); setBtnListenerOrDisable( picBtn, mTakePicOnClickListener, MediaStore.ACTION_IMAGE_CAPTURE ); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.FROYO) { mAlbumStorageDirFactory = new FroyoAlbumDirFactory(); } else { mAlbumStorageDirFactory = new BaseAlbumDirFactory(); } } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { switch (requestCode) { case ACTION_TAKE_PHOTO_B: { if (resultCode == RESULT_OK) { handleBigCameraPhoto(); } break; } // ACTION_TAKE_PHOTO_B } } // Some lifecycle callbacks so that the image can survive orientation change protected void onSaveInstanceState(Bundle outState) { outState.putParcelable(BITMAP_STORAGE_KEY, mImageBitmap); outState.putBoolean(IMAGEVIEW_VISIBILITY_STORAGE_KEY, (mImageBitmap != null) ); super.onSaveInstanceState(outState); } protected void onRestoreInstanceState(Bundle savedInstanceState) { super.onRestoreInstanceState(savedInstanceState); mImageBitmap = savedInstanceState.getParcelable(BITMAP_STORAGE_KEY); mImageView.setImageBitmap(mImageBitmap); mImageView.setVisibility( savedInstanceState.getBoolean(IMAGEVIEW_VISIBILITY_STORAGE_KEY) ? ImageView.VISIBLE : ImageView.INVISIBLE ); } /** * Indicates whether the specified action can be used as an intent. This * method queries the package manager for installed packages that can * respond to an intent with the specified action. If no suitable package is * found, this method returns false. * http://android-developers.blogspot.com/2009/01/can-i-use-this-intent.html * * @param context The application's environment. * @param action The Intent action to check for availability. * * @return True if an Intent with the specified action can be sent and * responded to, false otherwise. */ public static boolean isIntentAvailable(Context context, String action) { final PackageManager packageManager = context.getPackageManager(); final Intent intent = new Intent(action); List<ResolveInfo> list = packageManager.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY); return list.size() > 0; } private void setBtnListenerOrDisable( Button btn, Button.OnClickListener onClickListener, String intentName ) { if (isIntentAvailable(this, intentName)) { btn.setOnClickListener(onClickListener); } else { btn.setText( getText(R.string.cannot).toString() + " " + btn.getText()); btn.setClickable(false); } } } </code></pre>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload