Android obtenir une image de la galerie est mis en rotation

2 solutions D'une ligne utilisant Picasso et la bibliothèque glide

après avoir passé beaucoup de temps avec beaucoup de solutions pour le problème de rotation d'image j'ai finalement trouvé deux solutions simples. Nous n'avons pas besoin de faire des travaux supplémentaires.

utilisation de la bibliothèque Picassohttps://github.com/square/picasso

Picasso.with(context).load("http url or sdcard url").into(imageView);

Utilisation de la glisse de la bibliothèque https://github.com/bumptech/glide

Glide.with(this).load("http url or sdcard url").into(imgageView);

Picasso et Glide sont une bibliothèque très puissante pour manipuler des images dans votre application inclut. Il lira les données image EXIF et fera tourner les images.

j'utilise ces méthodes statiques. La première détermine l'orientation et la seconde fait tourner l'image en la rétrécissant au besoin.

public static int getOrientation(Context context, Uri photoUri) {

    Cursor cursor = context.getContentResolver().query(photoUri,
            new String[] { MediaStore.Images.ImageColumns.ORIENTATION }, null, null, null);

    if (cursor == null || cursor.getCount() != 1) {
        return 90;  //Assuming it was taken portrait
    }

    cursor.moveToFirst();
    return cursor.getInt(0);
}

/**
* Rotates and shrinks as needed
*/
public static Bitmap getCorrectlyOrientedImage(Context context, Uri photoUri, int maxWidth)
                throws IOException {

            InputStream is = context.getContentResolver().openInputStream(photoUri);
            BitmapFactory.Options dbo = new BitmapFactory.Options();
            dbo.inJustDecodeBounds = true;
            BitmapFactory.decodeStream(is, null, dbo);
            is.close();


            int rotatedWidth, rotatedHeight;
            int orientation = getOrientation(context, photoUri);

            if (orientation == 90 || orientation == 270) {
                Log.d("ImageUtil", "Will be rotated");
                rotatedWidth = dbo.outHeight;
                rotatedHeight = dbo.outWidth;
            } else {
                rotatedWidth = dbo.outWidth;
                rotatedHeight = dbo.outHeight;
            }

            Bitmap srcBitmap;
            is = context.getContentResolver().openInputStream(photoUri);
            Log.d("ImageUtil", String.format("rotatedWidth=%s, rotatedHeight=%s, maxWidth=%s",
                    rotatedWidth, rotatedHeight, maxWidth));
            if (rotatedWidth > maxWidth || rotatedHeight > maxWidth) {
                float widthRatio = ((float) rotatedWidth) / ((float) maxWidth);
                float heightRatio = ((float) rotatedHeight) / ((float) maxWidth);
                float maxRatio = Math.max(widthRatio, heightRatio);
                Log.d("ImageUtil", String.format("Shrinking. maxRatio=%s",
                        maxRatio));

                // Create the bitmap from file
                BitmapFactory.Options options = new BitmapFactory.Options();
                options.inSampleSize = (int) maxRatio;
                srcBitmap = BitmapFactory.decodeStream(is, null, options);
            } else {
                Log.d("ImageUtil", String.format("No need for Shrinking. maxRatio=%s",
                        1));

                srcBitmap = BitmapFactory.decodeStream(is);
                Log.d("ImageUtil", String.format("Decoded bitmap successful"));
            }
            is.close();

        /*
         * if the orientation is not 0 (or -1, which means we don't know), we
         * have to do a rotation.
         */
            if (orientation > 0) {
                Matrix matrix = new Matrix();
                matrix.postRotate(orientation);

                srcBitmap = Bitmap.createBitmap(srcBitmap, 0, 0, srcBitmap.getWidth(),
                        srcBitmap.getHeight(), matrix, true);
            }

            return srcBitmap;
        }

je le fais de cette façon:

public void browseClick(View view) {
    view.startAnimation(AnimationUtils.loadAnimation(getApplicationContext(), R.anim.button_animation));
    Intent i = new Intent(
            Intent.ACTION_PICK,
            android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);

    startActivityForResult(i, RESULT_LOAD_IMAGE);
}

et le résultat où l'orientation est vérifiée vous intéressera le plus:

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data) {
        Uri selectedImage = data.getData();
        String[] filePathColumn = { MediaStore.Images.Media.DATA };

        Cursor cursor = getContentResolver().query(selectedImage,
                filePathColumn, null, null, null);
        cursor.moveToFirst();

        int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
        String picturePath = cursor.getString(columnIndex);
        cursor.close();

        Bitmap loadedBitmap = BitmapFactory.decodeFile(picturePath);

        Matrix matrix = new Matrix();
        Bitmap scaledBitmap;
        if (loadedBitmap.getWidth() >= loadedBitmap.getHeight()){
            matrix.setRectToRect(new RectF(0, 0, loadedBitmap.getWidth(), loadedBitmap.getHeight()), new RectF(0, 0, 400, 300), Matrix.ScaleToFit.CENTER);
            scaledBitmap = Bitmap.createBitmap(loadedBitmap, 0, 0, loadedBitmap.getWidth(), loadedBitmap.getHeight(), matrix, true);
        } else{
            matrix.setRectToRect(new RectF(0, 0, loadedBitmap.getWidth(), loadedBitmap.getHeight()), new RectF(0, 0, 300, 400), Matrix.ScaleToFit.CENTER);
            scaledBitmap = Bitmap.createBitmap(loadedBitmap, 0, 0, loadedBitmap.getWidth(), loadedBitmap.getHeight(), matrix, true);
        }

        File file = new File(getExternalCacheDir(), "image.jpg");
        try {
            FileOutputStream out = new FileOutputStream(file);
            scaledBitmap.compress(Bitmap.CompressFormat.JPEG, 100, out);
            out.flush();
            out.close();
        } catch (Exception e) {
            Log.e("Image", "Convert");
        }

        imageView.setImageBitmap(scaledBitmap);
    }
}

Voici l'approche ExifInterface écrite dans Kotlin:

fun modifyOrientation(bitmap: Bitmap, image_absolute_path: String): Bitmap {
    val ei = ExifInterface(image_absolute_path)
    val orientation = ei.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL)
    return when (orientation) {
        ExifInterface.ORIENTATION_ROTATE_90 -> rotateImage(bitmap, 90.toFloat())
        ExifInterface.ORIENTATION_ROTATE_180 -> rotateImage(bitmap, 180.toFloat())
        ExifInterface.ORIENTATION_ROTATE_270 -> rotateImage(bitmap, 270.toFloat())
        ExifInterface.ORIENTATION_FLIP_HORIZONTAL -> flipImage(bitmap, true, false)
        ExifInterface.ORIENTATION_FLIP_VERTICAL -> flipImage(bitmap, false, true)
        else -> bitmap
    }
}

private fun rotateImage(bitmap: Bitmap, degrees: Float): Bitmap {
    val matrix = Matrix()
    matrix.postRotate(degrees)
    return Bitmap.createBitmap(bitmap, 0, 0, bitmap.width, bitmap.height, matrix, true)
}

private fun flipImage(bitmap: Bitmap, horizontal: Boolean, vertical: Boolean): Bitmap {
    val matrix = Matrix()
    matrix.preScale((if (horizontal) -1 else 1).toFloat(), (if (vertical) -1 else 1).toFloat())
    return Bitmap.createBitmap(bitmap, 0, 0, bitmap.width, bitmap.height, matrix, true)
}