java - 相机 Intent 在保存到SD卡之前先旋转图像

我搜索了很长时间，以获取有关在保存到SD卡之前使用相机意图旋转图像的解决方案。我尝试捕获人像照片并进入sd卡文件路径，以横向查看它。有人知道如何解决这个问题吗？我的代码到目前为止：

 Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
    startActivityForResult(cameraIntent, CAMERA_PIC_REQUEST);

    @Override

    public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode == Activity.RESULT_OK) {
        if (requestCode == REQUEST_CAMERA) {


    Cursor cursor = getContentResolver().query(Media.EXTERNAL_CONTENT_URI, new String[]{Media.DATA, Media.DATE_ADDED, MediaStore.Images.ImageColumns.ORIENTATION}, Media.DATE_ADDED, null, "date_added ASC");
                if(cursor != null && cursor.moveToFirst())
                {
                    do {
                        uri = Uri.parse(cursor.getString(cursor.getColumnIndex(Media.DATA)));

                    photoPath = uri.toString();

Matrix matrix = new Matrix();

        ExifInterface exifReader = null;
        try {
            exifReader = new ExifInterface(photoPath);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }// Location of your image

        int orientation = exifReader.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL);

        if (orientation ==ExifInterface.ORIENTATION_NORMAL) {

        // Do nothing. The original image is fine.
        } else if (orientation == ExifInterface.ORIENTATION_ROTATE_90) {

               matrix.postRotate(90);

        } else if (orientation == ExifInterface.ORIENTATION_ROTATE_180) {

               matrix.postRotate(180);

        } else if (orientation == ExifInterface.ORIENTATION_ROTATE_270) {

               matrix.postRotate(270);

        }
                }while(cursor.moveToNext());
                cursor.close();
            }
}

最佳答案

使用下面的代码旋转图像：

Uri imageUri = intent.getData();
            String[] orientationColumn = {MediaStore.Images.Media.ORIENTATION};
            Cursor cur = managedQuery(imageUri, orientationColumn, null, null, null);
            int orientation = -1;
            if (cur != null && cur.moveToFirst()) {
                orientation = cur.getInt(cur.getColumnIndex(orientationColumn[0]));
            }
            Matrix matrix = new Matrix();
            matrix.postRotate(orientation);