Unable to post an image from drawable to facebook

问题

I am trying to pass an image from the drawables folder to the feed dialogue. But I am unable to view the image in facebook feed dialogue. Rest of the parameters are available. I am using facebook SDK 3.5. Here is the function for showing feed dialog.

 private void publishFeedDialog() {


        Bitmap bitmap = BitmapFactory.decodeResource(this.getResources(),R.drawable.ic_launcher);
        ByteArrayOutputStream stream = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
        byte[] bitMapData = stream.toByteArray();

        Bundle params = new Bundle();
        params.putByteArray("picture", bitMapData);
        params.putString("name", "Facebook SDK for Android");
        params.putString("caption", "Build great social apps and get more installs.");
        params.putString("description", "The Facebook SDK for Android makes it easier and faster to develop Facebook integrated Android apps.");
        params.putString("link", "https://developers.facebook.com/android");
        //params.putString("picture", "https://raw.github.com/fbsamples/ios-3.x-howtos/master/Images/iossdk_logo.png");


        WebDialog feedDialog = (
            new WebDialog.FeedDialogBuilder(getActivity(),
                Session.getActiveSession(),
                params))
            .setOnCompleteListener(new OnCompleteListener() {

                @Override
                public void onComplete(Bundle values,
                    FacebookException error) {
                    if (error == null) {
                        // When the story is posted, echo the success
                        // and the post Id.
                        final String postId = values.getString("post_id");
                        if (postId != null) {
                            Toast.makeText(getActivity(),
                                "Posted story, id: "+postId,
                                Toast.LENGTH_SHORT).show();
                        } else {
                            // User clicked the Cancel button
                            Toast.makeText(getActivity().getApplicationContext(), 
                                "Publish cancelled", 
                                Toast.LENGTH_SHORT).show();
                        }
                    } else if (error instanceof FacebookOperationCanceledException) {
                        // User clicked the "x" button
                        Toast.makeText(getActivity().getApplicationContext(), 
                            "Publish cancelled", 
                            Toast.LENGTH_SHORT).show();
                    } else {
                        // Generic, ex: network error
                        Toast.makeText(getActivity().getApplicationContext(), 
                            "Error posting story", 
                            Toast.LENGTH_SHORT).show();
                    }
                }

            })
            .build();
        feedDialog.show();
    }

回答1:

Publish feed will work only with url to image.

See picture property under feed documentation: https://developers.facebook.com/docs/reference/dialogs/feed/

If you want to publish image from your memory (like drawable folder) then you need to use: Request.newUploadPhotoRequest()

Beside this, you can use this simple open source library that supports SDK 3.5 for doing actions like publish photo, feed and so on in a very simple way: https://github.com/sromku/android-simple-facebook

UPDATE

Option 1
You can use Request.newUploadPhotoRequest(), but this method doesn't allow you to add any additional property except the image itself.

Bitmap bitmap = BitmapFactory.decodeResource(this.getResources(),R.drawable.ic_launcher);
Request.newUploadPhotoRequest(Session.getActiveSession(), bitmap , new Request.Callback()
{
    @Override
    public void onCompleted(Response response)
    {
        // ... handle the response...           
    }
});

Option 2
If you want to add additional properties to the image like description, then do almost the same but with raw graph api call. The facebook implementation of Request.newUploadPhotoRequest() does exactly the same but without setting additional properties.

Bitmap bitmap = BitmapFactory.decodeResource(this.getResources(),R.drawable.ic_launcher);

Bundle params = new Bundle();
params.putParcelable("picture", bitmap);
params.putString("message", "This is the description of the image");
params.putString("place", "1235456498726"); // place id of the image

Request request = new Request(session, "me/photos", bundle, HttpMethod.POST, new Request.Callback()
{
    @Override    
    public void onCompleted(Response response)
    {
        // ... handle the response...
    }
});

RequestAsyncTask task = new RequestAsyncTask(request);
task.execute();

来源：https://stackoverflow.com/questions/19145375/unable-to-post-an-image-from-drawable-to-facebook