android - Facebook 和 Android SDK

Question

我想在 Facebook 上分享手机 SD 卡上的一张图片。

我的问题是在运行应用程序后我可以看到以下消息

Myapplication would like to access your public profile and friend list.

但是当我按 OK 并转到我的 Facebook 页面时，我在那里看不到任何图像。

我正在按照 this link 上的说明进行操作我的代码在下面

public class PhotoActivity extends BaseFragmentActivity {
    private static final String MIME_TYPE = "image/jpeg";

    private Uri uri;
    private ImageView mPhotoView;

    private Session.StatusCallback mStatusCallback = new SessionStatusCallback();
    private boolean mPostToWall = false;

    private ImageButton retakeBtn;

    private class SessionStatusCallback implements Session.StatusCallback {
        @Override
        public void call(Session session, SessionState state,
                Exception exception) {

            if (session.isOpened() && mPostToWall) {
                share();

            }
        }
    }

    @Override
    public void onStart() {
        super.onStart();
        Session.getActiveSession().addCallback(mStatusCallback);
    }

    @Override
    public void onStop() {
        super.onStop();
        Session.getActiveSession().removeCallback(mStatusCallback);
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        Session.getActiveSession().onActivityResult(this, requestCode,
                resultCode, data);
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        Session session = Session.getActiveSession();
        Session.saveSession(session, outState);
    }

    private void share() {


        Bundle bundle = new Bundle();
        mPhotoView.setDrawingCacheEnabled(true);
        mPhotoView.buildDrawingCache();
        Bitmap bmap = mPhotoView.getDrawingCache();
        ByteArrayOutputStream stream = new ByteArrayOutputStream();
        bmap.compress(Bitmap.CompressFormat.JPEG, 80, stream);
        byte[] byteArray = stream.toByteArray();

        bundle.putByteArray("picture", byteArray);


            WebDialog feedDialog = (
                new WebDialog.FeedDialogBuilder(getApplicationContext(),
                    Session.getActiveSession(),
                    bundle))
                .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(getApplicationContext(),
                                    "Posted story, id: "+postId,
                                    Toast.LENGTH_SHORT).show();
                            } else {
                                // User clicked the Cancel button
                                Toast.makeText(getApplicationContext(), 
                                    "Publish cancelled", 
                                    Toast.LENGTH_SHORT).show();
                            }
                        } else if (error instanceof FacebookOperationCanceledException) {
                            // User clicked the "x" button
                            Toast.makeText(getApplicationContext(), 
                                "Publish cancelled", 
                                Toast.LENGTH_SHORT).show();
                        } else {
                            // Generic, ex: network error
                            Toast.makeText(getApplicationContext(), 
                                "Error posting story", 
                                Toast.LENGTH_SHORT).show();
                        }
                    }

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

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setTheme(R.style.AppTheme);

        uri = getIntent().getData();

        setContentView(R.layout.activity_photo);

        retakeBtn = (ImageButton) findViewById(R.id.retake_btn);

        String lang = getString(R.string.lang);
        if (lang.endsWith("FR")) {
            retakeBtn.setImageResource(R.drawable.retake_xhdpi);
        } else {
            retakeBtn.setImageResource(R.drawable.retake_en_xhdpi);

        }

        // Facebook
        Settings.addLoggingBehavior(LoggingBehavior.INCLUDE_ACCESS_TOKENS);

        Session session = Session.getActiveSession();
        if (session == null) {
            if (savedInstanceState != null) {
                session = Session.restoreSession(this, null, mStatusCallback,
                        savedInstanceState);
            }
            if (session == null) {
                session = new Session(this);
            }
            Session.setActiveSession(session);
            if (session.getState().equals(SessionState.CREATED_TOKEN_LOADED)) {

                session.openForPublish(new Session.OpenRequest(PhotoActivity.this)
                        .setCallback(mStatusCallback).setPermissions(Arrays.asList("photo_upload","publish_stream","publish_actions")));


            }
        }

        mPhotoView = (ImageView) findViewById(R.id.photo);
        mPhotoView.setImageURI(uri);

        retakeBtn.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {

                Intent intent = new Intent(PhotoActivity.this,
                        CameraActivity.class);
                startActivity(intent);

                finish();
            }
        });


    }

    @Override
    public boolean onCreateOptionsMenu(com.actionbarsherlock.view.Menu menu) {
        com.actionbarsherlock.view.MenuInflater inflater = getSupportMenuInflater();
        inflater.inflate(R.menu.item_photo_activity, menu);
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(
            com.actionbarsherlock.view.MenuItem item) {
        switch (item.getItemId()) {
        case android.R.id.home:
            Intent intent = new Intent(PhotoActivity.this, CameraActivity.class);
            intent.putExtra("from_activity", 300);
            startActivity(intent);
            finish();
            break;

        case R.id.share_button:
            Session session = Session.getActiveSession();

            if (!session.isOpened() && !session.isClosed()) {
                session.openForPublish(new Session.OpenRequest(PhotoActivity.this)
                        .setCallback(mStatusCallback).setPermissions(Arrays.asList("photo_upload","publish_stream","publish_actions")));


            } else {
                Session.openActiveSession(PhotoActivity.this, true,
                        mStatusCallback);
            }
            break;
        }
        return true;
    }

Answer 1

您正在尝试将照片添加到不采用二进制数据的提要对话框。查看feed dialog documentation here ，“图片”参数只接受一个 URL。

如果要上传照片，需要获得“publish_actions”权限，调用Request.newUploadPhotoRequest方法。查看 SDK 附带的 Hello Facebook 示例应用程序，它演示了如何上传照片。