用相机意图拍照在纵向模式下旋转图片android

Question

用相机成功拍摄照片,但在三星Galaxy s3上以纵向模式拍摄照片时,照片会旋转.我该如何解决这个问题.相机意图如下:

Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
        intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(xdestination));
        startActivityForResult(intent, CAMERA_PIC_REQUEST);

在活动中获得结果

 if (requestCode==CAMERA_PIC_REQUEST){

            //  Bitmap bm = (Bitmap) data.getExtras().get("data"); 

                Uri photo_uri = Uri.fromFile(xdestination);

                Editer.PHOTO_FROM=11;

                Bitmap decodeSampledBitmapFromFile=null;
                try {
                    decodeSampledBitmapFromFile = decodeUri(photo_uri);
                } catch (FileNotFoundException e1) {
                    // TODO Auto-generated catch block
                    e1.printStackTrace();
                }

                ByteArrayOutputStream bytes = new ByteArrayOutputStream();
                decodeSampledBitmapFromFile.compress(Bitmap.CompressFormat.JPEG,100, bytes);

                File f  = new File(Environment.getExternalStorageDirectory(), "user_image.jpg");

                try {

                    if(f.exists())
                        f.delete();

                    f.createNewFile();

                    FileOutputStream fo = new FileOutputStream(f);
                    fo.write(bytes.toByteArray());
                    fo.close();

                } catch (IOException e) {

                    e.printStackTrace( );
                    Log.d("ERROR", e.toString());
                }

            }

Answer 1

将您拍摄的照片和该照片的SDCard路径传递给以下方法,该方法将返回正确的方向图片...

private Bitmap imageOreintationValidator(Bitmap bitmap, String path) {

    ExifInterface ei;
    try {
        ei = new ExifInterface(path);
        int orientation = ei.getAttributeInt(ExifInterface.TAG_ORIENTATION,
                ExifInterface.ORIENTATION_NORMAL);
        switch (orientation) {
        case ExifInterface.ORIENTATION_ROTATE_90:
            bitmap = rotateImage(bitmap, 90);
            break;
        case ExifInterface.ORIENTATION_ROTATE_180:
            bitmap = rotateImage(bitmap, 180);
            break;
        case ExifInterface.ORIENTATION_ROTATE_270:
            bitmap = rotateImage(bitmap, 270);
            break;
        }
    } catch (IOException e) {
        e.printStackTrace();
    }

    return bitmap;
}

private Bitmap rotateImage(Bitmap source, float angle) {

    Bitmap bitmap = null;
    Matrix matrix = new Matrix();
    matrix.postRotate(angle);
    try {
        bitmap = Bitmap.createBitmap(source, 0, 0, source.getWidth(), source.getHeight(),
                matrix, true);
    } catch (OutOfMemoryError err) {
        err.printStackTrace();
    }
    return bitmap;
}