*/
package com.owncloud.android.ui.preview;
+import java.io.BufferedInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FilterInputStream;
+import java.io.IOException;
+import java.io.InputStream;
import java.lang.ref.WeakReference;
import android.accounts.Account;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
+import android.graphics.BitmapFactory.Options;
+import android.graphics.Matrix;
+import android.graphics.Point;
+import android.media.ExifInterface;
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;
public void onDestroy() {
if (mBitmap != null) {
mBitmap.recycle();
+ System.gc();
}
super.onDestroy();
}
if (params.length != 1) return result;
String storagePath = params[0];
try {
- //Decode file into a bitmap in real size for being able to make zoom on the image
- result = BitmapFactory.decodeFile(storagePath);
+
+ 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
+ result = BitmapFactory.decodeStream(new FlushedInputStream
+ (new BufferedInputStream(new FileInputStream(picture))));
+ }
if (result == null) {
mErrorMessageId = R.string.preview_image_error_unknown_format;
}
} catch (OutOfMemoryError e) {
- mErrorMessageId = R.string.preview_image_error_unknown_format;
Log_OC.e(TAG, "Out of memory occured for file " + storagePath, e);
+
+ // If out of memory error when loading 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);
+ }
} catch (NoSuchFieldError e) {
mErrorMessageId = R.string.common_error_unknown;
Log_OC.e(TAG, "Unexpected error loading " + getFile().getStoragePath(), t);
}
+
+ result = rotateImage(result, storagePath);
+
+
return result;
}
+ /**
+ * Rotate bitmap according to EXIF orientation.
+ * Cf. http://www.daveperrett.com/articles/2012/07/28/exif-orientation-handling-is-a-ghetto/
+ * @param bitmap Bitmap to be rotated
+ * @param storagePath Path to source file of bitmap. Needed for EXIF information.
+ * @return correctly EXIF-rotated bitmap
+ */
+ private Bitmap rotateImage(Bitmap bitmap, String storagePath){
+ Bitmap resultBitmap = bitmap;
+
+ try
+ {
+ ExifInterface exifInterface = new ExifInterface(storagePath);
+ int orientation = exifInterface.getAttributeInt(ExifInterface.TAG_ORIENTATION, 1);
+
+ Matrix matrix = new Matrix();
+
+ // 1: nothing to do
+
+ // 2
+ if (orientation == ExifInterface.ORIENTATION_FLIP_HORIZONTAL)
+ {
+ matrix.postScale(-1.0f, 1.0f);
+ }
+ // 3
+ else if (orientation == ExifInterface.ORIENTATION_ROTATE_180)
+ {
+ matrix.postRotate(180);
+ }
+ // 4
+ else if (orientation == ExifInterface.ORIENTATION_FLIP_VERTICAL)
+ {
+ matrix.postScale(1.0f, -1.0f);
+ }
+ // 5
+ else if (orientation == ExifInterface.ORIENTATION_TRANSPOSE)
+ {
+ matrix.postRotate(-90);
+ matrix.postScale(1.0f, -1.0f);
+ }
+ // 6
+ else if (orientation == ExifInterface.ORIENTATION_ROTATE_90)
+ {
+ matrix.postRotate(90);
+ }
+ // 7
+ else if (orientation == ExifInterface.ORIENTATION_TRANSVERSE)
+ {
+ matrix.postRotate(90);
+ matrix.postScale(1.0f, -1.0f);
+ }
+ // 8
+ else if (orientation == ExifInterface.ORIENTATION_ROTATE_270)
+ {
+ matrix.postRotate(270);
+ }
+
+ // Rotate the bitmap
+ resultBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
+ }
+ catch (Exception exception)
+ {
+ Log_OC.e(TAG, "Could not rotate the image: " + storagePath);
+ }
+ return resultBitmap;
+ }
+
@Override
protected void onPostExecute(Bitmap result) {
hideProgressWheel();
public TouchImageViewCustom getImageView() {
return mImageView;
}
+
+ static class FlushedInputStream extends FilterInputStream {
+ public FlushedInputStream(InputStream inputStream) {
+ super(inputStream);
+ }
+
+ @Override
+ public long skip(long n) throws IOException {
+ long totalBytesSkipped = 0L;
+ while (totalBytesSkipped < n) {
+ long bytesSkipped = in.skip(n - totalBytesSkipped);
+ if (bytesSkipped == 0L) {
+ int byteValue = read();
+ if (byteValue < 0) {
+ break; // we reached EOF
+ } else {
+ bytesSkipped = 1; // we read one byte
+ }
+ }
+ totalBytesSkipped += bytesSkipped;
+ }
+ 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