import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
+import android.graphics.BitmapFactory.Options;
+import android.graphics.Point;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.FragmentStatePagerAdapter;
+import android.view.Display;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import com.owncloud.android.ui.dialog.ConfirmationDialogFragment;
import com.owncloud.android.ui.dialog.RemoveFileDialogFragment;
import com.owncloud.android.ui.fragment.FileFragment;
+import com.owncloud.android.utils.BitmapUtils;
import com.owncloud.android.utils.TouchImageViewCustom;
private static final String TAG = PreviewImageFragment.class.getSimpleName();
private boolean mIgnoreFirstSavedState;
+
+ private LoadBitmapTask mLoadBitmapTask = null;
/**
public void onStart() {
super.onStart();
if (getFile() != null) {
- BitmapLoader bl = new BitmapLoader(mImageView, mMessageView, mProgressWheel);
- bl.execute(new String[]{getFile().getStoragePath()});
+ mLoadBitmapTask = new LoadBitmapTask(mImageView, mMessageView, mProgressWheel);
+ mLoadBitmapTask.execute(new String[]{getFile().getStoragePath()});
}
}
+ @Override
+ public void onStop() {
+ super.onStop();
+ if (mLoadBitmapTask != null) {
+ mLoadBitmapTask.cancel(true);
+ mLoadBitmapTask = null;
+ }
+
+ }
+
/**
* {@inheritDoc}
*/
}
- private class BitmapLoader extends AsyncTask<String, Void, Bitmap> {
+ private class LoadBitmapTask extends AsyncTask<String, Void, Bitmap> {
/**
* Weak reference to the target {@link ImageView} where the bitmap will be loaded into.
*
* @param imageView Target {@link ImageView} where the bitmap will be loaded into.
*/
- public BitmapLoader(ImageViewCustom imageView, TextView messageView, ProgressBar progressWheel) {
+ public LoadBitmapTask(ImageViewCustom imageView, TextView messageView, ProgressBar progressWheel) {
mImageViewRef = new WeakReference<ImageViewCustom>(imageView);
mMessageViewRef = new WeakReference<TextView>(messageView);
mProgressWheelRef = new WeakReference<ProgressBar>(progressWheel);
String storagePath = params[0];
try {
-
+ if (isCancelled()) return result;
+
File picture = new File(storagePath);
if (picture != null) {
- //Decode file into a bitmap in real size for being able to make zoom on the image
+ // Decode file into a bitmap in real size for being able to make zoom on
+ // the image
result = BitmapFactory.decodeStream(new FlushedInputStream
(new BufferedInputStream(new FileInputStream(picture))));
}
+ if (isCancelled()) return result;
+
if (result == null) {
mErrorMessageId = R.string.preview_image_error_unknown_format;
Log_OC.e(TAG, "File could not be loaded as a bitmap: " + storagePath);
+ } else {
+ // Rotate image, obeying exif tag.
+ result = BitmapUtils.rotateImage(result, storagePath);
}
} catch (OutOfMemoryError e) {
- mErrorMessageId = R.string.preview_image_error_unknown_format;
Log_OC.e(TAG, "Out of memory occured for file " + storagePath, e);
+
+ if (isCancelled()) return result;
+
+ // If out of memory error when loading or rotating image, try to load it scaled
+ result = loadScaledImage(storagePath);
+
+ if (result == null) {
+ mErrorMessageId = R.string.preview_image_error_unknown_format;
+ Log_OC.e(TAG, "File could not be loaded as a bitmap: " + storagePath);
+ } else {
+ // Rotate scaled image, obeying exif tag
+ result = BitmapUtils.rotateImage(result, storagePath);
+ }
} catch (NoSuchFieldError e) {
mErrorMessageId = R.string.common_error_unknown;
- Log_OC.e(TAG, "Error from access to unexisting field despite protection; file " + storagePath, e);
+ Log_OC.e(TAG, "Error from access to unexisting field despite protection; file "
+ + storagePath, e);
} catch (Throwable t) {
mErrorMessageId = R.string.common_error_unknown;
Log_OC.e(TAG, "Unexpected error loading " + getFile().getStoragePath(), t);
}
+
return result;
}
@Override
+ protected void onCancelled(Bitmap result) {
+ if (result != null) {
+ result.recycle();
+ }
+ }
+
+ @Override
protected void onPostExecute(Bitmap result) {
hideProgressWheel();
if (result != null) {
showErrorMessage();
}
}
-
+
@SuppressLint("InlinedApi")
private void showLoadedImage(Bitmap result) {
if (mImageViewRef != null) {
return totalBytesSkipped;
}
}
+
+ /**
+ * Load image scaled
+ * @param storagePath: path of the image
+ * @return Bitmap
+ */
+ @SuppressWarnings("deprecation")
+ private Bitmap loadScaledImage(String storagePath) {
+
+ Log_OC.d(TAG, "Loading image scaled");
+
+ // set desired options that will affect the size of the bitmap
+ BitmapFactory.Options options = new Options();
+ options.inScaled = true;
+ options.inPurgeable = true;
+ if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.GINGERBREAD_MR1) {
+ options.inPreferQualityOverSpeed = false;
+ }
+ if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB) {
+ options.inMutable = false;
+ }
+ // make a false load of the bitmap - just to be able to read outWidth, outHeight and outMimeType
+ options.inJustDecodeBounds = true;
+ BitmapFactory.decodeFile(storagePath, options);
+
+ int width = options.outWidth;
+ int height = options.outHeight;
+ int scale = 1;
+
+ Display display = getActivity().getWindowManager().getDefaultDisplay();
+ Point size = new Point();
+ int screenWidth;
+ int screenHeight;
+ if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB_MR2) {
+ display.getSize(size);
+ screenWidth = size.x;
+ screenHeight = size.y;
+ } else {
+ screenWidth = display.getWidth();
+ screenHeight = display.getHeight();
+ }
+
+ if (width > screenWidth) {
+ // second try to scale down the image , this time depending upon the screen size
+ scale = (int) Math.floor((float)width / screenWidth);
+ }
+ if (height > screenHeight) {
+ scale = Math.max(scale, (int) Math.floor((float)height / screenHeight));
+ }
+ options.inSampleSize = scale;
+
+ // really load the bitmap
+ options.inJustDecodeBounds = false; // the next decodeFile call will be real
+ return BitmapFactory.decodeFile(storagePath, options);
+
+ }
}
projects / pub / Android / ownCloud.git / blobdiff