android - 人像图片上传到服务器后旋转90度

Question

我的应用程序有功能设置照片配置文件，但是当从图库上传图像到服务器时，图像自动旋转 90 度，这个问题只出现在纵向图像上，在横向图像中运行良好，我已经添加了裁剪功能，但它没有'没用，这是我更新个人资料图片的代码:

 private void updateProfile(){
    // multipart
    MultipartBody.Part _file = null;
    if(proPicPath != null){
        // ini progress listener
        ProgressRequestBody.ProgressListener progressListener = new ProgressRequestBody.ProgressListener() {
            @Override
            public void transferred(final int num, long transferred, long totalSize) {
                Handler handler = new Handler(Looper.getMainLooper());
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        try {
                            dialogUpload.setMessage("Updating "+ num + "%");
                        }catch (NullPointerException ne){
                            ne.printStackTrace();
                        }
                    }
                });
            }
        };

        File file = new File(proPicPath);
        // init request body
        ProgressRequestBody requestFileBody = new ProgressRequestBody(file, "multipart/form-data", progressListener);
        _file = MultipartBody.Part.createFormData("caller_pic", file.getName(), requestFileBody);
    }

    // set request body
    RequestBody _caller_id = RequestBody.create(MediaType.parse("text/plain"), own.caller_id);
    RequestBody _name = null;
    if(!etUserName.getText().toString().isEmpty())
        _name = RequestBody.create(MediaType.parse("text/plain"), etUserName.getText().toString());
    RequestBody _email = null;
    if(!etUserEmail.getText().toString().isEmpty())
        _email = RequestBody.create(MediaType.parse("text/plain"), etUserEmail.getText().toString());

    Call<APIResponse<ContactItem>> call = ServicesFactory.getService().updateProfile(_caller_id, _name, _email, _file);
    call.enqueue(new Callback<APIResponse<ContactItem>>() {
        @Override
        public void onResponse(Call<APIResponse<ContactItem>> call, Response<APIResponse<ContactItem>> response) {
            dialogUpload.dismiss();
            dialogUpload = null;

            if(response.isSuccessful() && response.body().isSuccessful()){
                proPicPath = null;
                ContactItem updated = response.body().data;

                // save to session and update local variable
                own = SessionManager.saveProfile(ProfileActivity.this, updated);
                // update ui
                setUserInfo();
                checkProfileChanged();

                toast("Update profile success");
            }
            else{
                toast("Update profile failed");
            }
        }

        @Override
        public void onFailure(Call<APIResponse<ContactItem>> call, Throwable t) {
            dialogUpload.dismiss();
            dialogUpload = null;

            toast("Update profile failed");
        }
    });
}

Answer 1

我遇到了完全相同的问题，我用这个解决了:

int IMAGE_UPLOAD_MAX_COMPRESSION = 75;
Bitmap mSelectedImage;
                try {
                    mSelectedImage = MediaStore.Images.Media.getBitmap(this.getContentResolver(), Uri.parse("file:" + mCurrentPhotoPath));
                    mSelectedImage = PictureOrientation.bitmapFromUri(EditProfileActivity.this, Uri.parse("file:" + mCurrentPhotoPath));
                    OutputStream os = new FileOutputStream(mCurrentPhotoPath);
                    mSelectedImage.compress(Bitmap.CompressFormat.JPEG, IMAGE_UPLOAD_MAX_COMPRESSION, os);
                    os.flush();
                    os.close();

} catch (Exception ex) {
                    ex.printStackTrace();
                }

你感兴趣的部分在这里

PictureOrientation.bitmapFromUri(EditProfileActivity.this, Uri.parse("file:" + mCurrentPhotoPath));

这是 PictureOrientation 类:

public class PictureOrientation {

public static Bitmap bitmapFromUri(Context context, Uri photoUri)
        throws FileNotFoundException, 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 = 0;

    if (photoUri.toString().contains("content:/")) {
        orientation = getOrientation(context, photoUri);
    } else {
        int orientationFormExif = getOrientationFromExif(photoUri, context);
        orientation = decodeExifOrientation(orientationFormExif);
    }

    if (orientation == 90 || orientation == 270) {
        rotatedWidth = dbo.outHeight;
        rotatedHeight = dbo.outWidth;
    } else {
        rotatedWidth = dbo.outWidth;
        rotatedHeight = dbo.outHeight;
    }

    Bitmap srcBitmap = readScaledBitmapFromUri(photoUri, context,
            rotatedWidth, rotatedHeight);

    srcBitmap = setProperOrientation(orientation, srcBitmap);
    return srcBitmap;
}

private static int getOrientation(Context context, Uri photoUri) {
    /* it's on the external media. */
    Cursor cursor = context.getContentResolver().query(photoUri,
            new String[]{MediaStore.Images.ImageColumns.ORIENTATION},
            null, null, null);

    if (cursor.getCount() != 1) {
        return -1;
    }

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

private static int getOrientationFromExif(Uri imageUri, Context context) {
    int orientation = -1;
    File imageFile = new File(imageUri.getPath());
    try {
        ExifInterface exif;
        exif = new ExifInterface(imageFile.getAbsolutePath());
        orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION,
                ExifInterface.ORIENTATION_NORMAL);
    } catch (IOException e) {
        e.printStackTrace();
    }
    return orientation;
}


private static int decodeExifOrientation(int orientation) {
    switch (orientation) {
        case ExifInterface.ORIENTATION_NORMAL:
            orientation = 0;
            break;
        case ExifInterface.ORIENTATION_ROTATE_90:
            orientation = 90;
            break;
        case ExifInterface.ORIENTATION_ROTATE_180:
            orientation = 180;
            break;
        case ExifInterface.ORIENTATION_ROTATE_270:
            orientation = 270;
            break;
        default:
            break;
    }
    return orientation;
}

private static Bitmap readScaledBitmapFromUri(Uri photoUri, Context context, int width, int height)
        throws FileNotFoundException, IOException {
    InputStream is;
    Bitmap srcBitmap;
    is = context.getContentResolver().openInputStream(photoUri);
    if (width > EditProfileActivity.IMAGE_WIDTH || height > EditProfileActivity.IMAGE_HEIGHT) {
        float ratio = calculateScaleRatio(width, height);
        srcBitmap = readRoughScaledBitmap(is, ratio);
        ratio = calculateScaleRatio(srcBitmap.getWidth(),
                srcBitmap.getHeight());
        srcBitmap = scaleBitmap(srcBitmap, ratio);
    } else {
        srcBitmap = BitmapFactory.decodeStream(is);
    }
    is.close();
    return srcBitmap;
}

private static float calculateScaleRatio(int width, int height) {
    float widthRatio = ((float) width) / ((float) EditProfileActivity.IMAGE_WIDTH);
    float heightRatio = ((float) height) / ((float) EditProfileActivity.IMAGE_HEIGHT);
    float maxRatio = Math.max(widthRatio, heightRatio);
    return maxRatio;
}

private static Bitmap readRoughScaledBitmap(InputStream is, float maxRatio) {
    Bitmap result;
    // Create the bitmap from file
    BitmapFactory.Options options = new BitmapFactory.Options();
    options.inSampleSize = (int) maxRatio;
    result = BitmapFactory.decodeStream(is, null, options);
    return result;
}

private static Bitmap scaleBitmap(Bitmap bitmap, float ratio) {
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();

    Matrix matrix = new Matrix();
    matrix.postScale(1f / ratio, 1f / ratio);

    Bitmap result = Bitmap.createBitmap(bitmap, 0, 0, width, height,
            matrix, true);
    return result;
}

private static Bitmap setProperOrientation(int orientation, Bitmap srcBitmap) {
    if (orientation > 0) {
        Matrix matrix = new Matrix();
        matrix.postRotate(orientation);

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

这个类查看图片的exif方向并旋转它。