ArrayList<String> list = new ArrayList();
list.add("http://example.url:8000/uploads/images1.jpg");
list.add("http://example.url:8000/uploads/images2.jpg");
list.add("http://example.url:8000/uploads/images3.jpg");
int index = 0;
RequestBatch reqBatch = new RequestBatch();
do {
    Bundle postParams = new Bundle();
    postParams.putString("picture", list.get(index).toString());
    postParams.putString("message", "message");
    Request request = new Request(Session.getActiveSession(),"group_id/feed", postParams, HttpMethod.POST);
    request.setCallback( new Request.Callback() {
        @Override
        public void onCompleted(Response response) {
            Log.d(TAG, ""+response);
        }
    });
    reqBatch.add(request);
    index++;
}while(list.size()>index);
reqBatch.executeAsync();

Bundle params = new Bundle();
params.putString("name", "name");
params.putString("caption", "caption");
params.putString("description", "TEST");
params.putString("link", "http://image.url/image.jpg");
params.putString("to", "group_id");  // how to change to group wall???? and how to set 2+ photos???

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

        @Override
        public void onComplete(Bundle values, FacebookException error) {
            // TODO Auto-generated method stub
            Log.d(TAG, values.toString());
        }

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

protected void share(String nameApp, String imagePath, String text) {
// TODO Auto-generated method stub

try {
    List<Intent> targetedShareIntents = new ArrayList<Intent>();
    Intent share = new Intent(android.content.Intent.ACTION_SEND_MULTIPLE);
    share.setType("image/jpeg");
    List<ResolveInfo> resInfo = getActivity().getPackageManager()
            .queryIntentActivities(share, 0);
    if (!resInfo.isEmpty()) {
        for (ResolveInfo info : resInfo) {
            Intent targetedShare = new Intent(
                    android.content.Intent.ACTION_SEND_MULTIPLE);
            targetedShare.setType("image/png"); // put here your mime
            // type
            if (info.activityInfo.packageName.toLowerCase().contains(
                    nameApp)
                    || info.activityInfo.name.toLowerCase().contains(
                            nameApp)) {
                targetedShare.putExtra(Intent.EXTRA_SUBJECT, text);
                targetedShare.putExtra(Intent.EXTRA_TEXT, text);
                ArrayList<Uri> files = new ArrayList<Uri>();
                for(int j= 0;j<caminhos.size();j++){
                    if(!caminhos.get(j).isEmpty()){
                        File file = new File(caminhos.get(j));
                        Uri uri = Uri.fromFile(file);
                        files.add(uri);
                    }
                }

                targetedShare.putParcelableArrayListExtra(Intent.EXTRA_STREAM,
                        files);
                targetedShare.setPackage(info.activityInfo.packageName);
                targetedShareIntents.add(targetedShare);
            }
        }
        Intent chooserIntent = Intent.createChooser(
                targetedShareIntents.remove(0), "Select app to share");
        chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS,
                targetedShareIntents.toArray(new Parcelable[] {}));
        startActivity(chooserIntent);
    }
} catch (Exception e) {
}
}