@Override
public View getView(final int position, View convertView, ViewGroup parent) {
final ImageView view = new ImageView(context);
final String path = fileHandler.getFiles().get(position).getPath();
Bitmap bitmap = getBitmapFromMemCache(path);
if (null == bitmap) {
view.setVisibility(view.INVISIBLE);
service.submit(
new Runnable() {
@Override
public void run() {
Bitmap bitmap = resizeToSmall(BitmapFactory.decodeFile(path));
addBitmapToMemoryCache(path, bitmap);
setBitmap(view, bitmap);
}
});
} else {
view.setImageBitmap(bitmap);
}
int sizeWidth = SkylightApp.getScreen().getWidth();
sizeWidth = (sizeWidth - horizontalSpacing * 4) / 3;
view.setLayoutParams(new GridView.LayoutParams(sizeWidth, (int) (sizeWidth / 1.5)));
view.setScaleType(ImageView.ScaleType.CENTER_CROP);
return view;
}
public synchronized void cleanup(long size) {
locked = true;
while (SkylightApp.getPicturesDir().getUsableSpace() < size) {
if (!files.isEmpty()) {
PictureData victim = files.get(files.size() - 1);
delete(victim);
} else {
break;
}
}
locked = false;
}
private Bitmap scaleAndRotate(Bitmap bmp, File file) {
float w = bmp.getWidth();
float h = bmp.getHeight();
float s = Math.min(w, h);
float l = Math.max(w, h);
float sw = SkylightApp.getScreen().getSmallestWidth();
float lw = SkylightApp.getScreen().getLargestWidth();
float ratio = Math.min(1f, Math.max(sw / s, lw / l));
Bitmap scaled = Bitmap.createScaledBitmap(bmp, (int) (ratio * w), (int) (ratio * h), true);
Bitmap rotated = scaled;
try {
ExifInterface ei = new ExifInterface(file.getAbsolutePath());
int orientation =
ei.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL);
Matrix mtx = new Matrix();
int scaledW = scaled.getWidth();
int scaledH = scaled.getHeight();
switch (orientation) {
case ExifInterface.ORIENTATION_ROTATE_90:
// rotate CCW
mtx.preRotate(90);
rotated = Bitmap.createBitmap(scaled, 0, 0, scaledW, scaledH, mtx, true);
break;
case ExifInterface.ORIENTATION_ROTATE_180:
// rotate CCW
mtx.preRotate(180);
rotated = Bitmap.createBitmap(scaled, 0, 0, scaledW, scaledH, mtx, true);
break;
case ExifInterface.ORIENTATION_ROTATE_270:
// rotate CW
mtx.preRotate(-90);
rotated = Bitmap.createBitmap(scaled, 0, 0, scaledW, scaledH, mtx, true);
break;
}
} catch (IOException e) {
}
return rotated;
}
private synchronized PictureData addFile(File file, String from) {
cleanup(file.length());
try {
Bitmap bmp = decodeFile(file);
if (null == bmp) return null; // not an image
Bitmap scaled = scaleAndRotate(bmp, file);
String path =
new File(SkylightApp.getPicturesDir(), "pic" + System.currentTimeMillis() + ".jpg")
.getAbsolutePath();
OutputStream out = null;
try {
out = new BufferedOutputStream(new FileOutputStream(path));
scaled.compress(CompressFormat.JPEG, 85, out);
} catch (IOException e) {
Log.e(getClass().getName(), "Error writing scaled bitmap", e);
logger.logException(e);
} finally {
if (out != null) {
try {
out.flush();
} catch (Exception e) {
Log.e("Flushing OutputStream", e.getMessage(), e);
}
try {
out.close();
} catch (Exception e) {
Log.e("Closing OutputStream", e.getMessage(), e);
}
out = null;
}
}
locked = true;
PictureData picture = new PictureData(path, from);
picture = databaseHelper.addOrUpdate(picture);
file.delete();
scaled.recycle();
bmp.recycle();
locked = false;
return picture;
} catch (IllegalStateException e) {
Log.e("Adding file", e.getMessage(), e);
locked = false;
return null;
// PushLink.sendAsyncException(e);
}
}
public File addToCache(MimeBodyPart bodyPart) throws IOException, MessagingException {
File f = new File(SkylightApp.getTempDir(), bodyPart.getFileName());
cleanup(bodyPart.getSize() * MEMORY_COEFFICIENT);
bodyPart.saveFile(f);
return f;
}
public ImagesGalleryAdapter(Context context) {
this.context = context;
this.fileHandler = SkylightApp.getFileHandler();
this.horizontalSpacing = dpToPx(16);
this.service = Executors.newFixedThreadPool(20);
}
private int dpToPx(int dp) {
return Math.round(
dp
* ((float) SkylightApp.getScreen().getDensityDpi()
/ (float) DisplayMetrics.DENSITY_DEFAULT));
}