android - 如何从 SD 卡上传图片到 Facebook？

Question

我在这里放置了我的代码，谁能告诉我哪里出了问题？

代码

private void onFbLogin() {
            LoginManager.getInstance().logInWithReadPermissions(this, Arrays.asList("user_friends"));
            LoginManager.getInstance().registerCallback(callbackManager,
                    new FacebookCallback<LoginResult>() {
                        @Override
                        public void onSuccess(LoginResult loginResult) {
                            System.out.println("Success");
                            if (ShareDialog.canShow(ShareLinkContent.class)) {                          
                                 File sdCard = Environment.getExternalStorageDirectory();
                               File file = new File(sdCard, "final_card.jpg");



                            ShareLinkContent content = new ShareLinkContent.Builder()//
                                    .setContentUrl(Uri.parse("file:///sdcard/sharing_event.jpg"))
                                    .setContentDescription("some desc")
                                    .setContentTitle("Chennai")
                                    .build();
                            shareDialog.show(content);
                        }
                    }

                    @Override
                    public void onCancel() {
                        showAlert();
                    }

                    @Override
                    public void onError(FacebookException error) {
                        showAlert();
                    }

                    private void showAlert() {
                        new AlertDialog.Builder(FinalCardView.this)
                                .setTitle(getString(R.string.cancelled))
                                .setMessage(getString(R.string.permission_not_granted))
                                .setPositiveButton(getString(R.string.ok), null)
                                .show();
                    }
                });
    }

Answer 1

是否要分享图片-需要使用SharePhoto photo

SharePhoto photo = new SharePhoto.Builder()
        .setBitmap(bitmap)
        .build();
SharePhotoContent content = new SharePhotoContent.Builder()
        .addPhoto(photo)
        .build();

这样就可以得到一个位图文件

Bitmap bitmap = BitmapFactory.decodeFile(file.getAbsolutePath()