android - 无法将图片从 drawable 发布到 facebook

Question

我正在尝试将图像从 drawables 文件夹传递到 feed 对话框。但我无法在 facebook 提要对话中查看图像。其余参数可用。我正在使用 Facebook SDK 3.5。这是显示提要对话框的函数。

 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();
    }

Answer 1

发布 Feed 仅适用于图像的 url。

查看 feed 文档下的 picture 属性:https://developers.facebook.com/docs/reference/dialogs/feed/

如果你想从你的内存中发布图像(比如可绘制文件夹)，那么你需要使用:Request.newUploadPhotoRequest()

除此之外，您还可以使用这个支持 SDK 3.5 的简单开源库以非常简单的方式执行发布照片、提要等操作:https://github.com/sromku/android-simple-facebook

更新

选项 1
您可以使用 Request.newUploadPhotoRequest()，但此方法不允许您添加除图像本身之外的任何其他属性。

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...           
    }
});

选项 2
如果您想向图像添加其他属性(如描述)，则执行几乎相同的操作，但使用原始图形 api 调用。 Request.newUploadPhotoRequest() 的 facebook 实现完全相同，但没有设置额外的属性。

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();