android - 预定义文本直接张贴在 Facebook 墙上

Question

我正在使用为 facebook 提供的 facebook android sdk 我正在使用他们提供的简单示例并且它的工作非常好，现在在 fb 中登录时显示来自 fb 的表单以在单击按钮时张贴在墙上。但我想直接从代码设置文本，然后单击按钮直接将我设置的文本发布到 fb 上，而无需调用墙贴表单来输入文本和共享。

这是我的项目图像，包含我正在使用的所有 fb 相关文件，下面是该项目的 mu step wise o/p

1.登录

点击后显示分享表单

但是在墙贴后我想直接在 fb 上上传我的帖子我该怎么做以及要更改什么我不知道我试过但无法设置我的预定义文本，如何在不调用表单的情况下直接在墙上张贴分享我已经从这个链接下载了 sdk fron gitstore https://github.com/facebook/facebook-android-sdk/请帮我提前谢谢

这是我的 example.java 代码

      mUploadButton.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                Bundle params = new Bundle();
                params.putString("method", "photos.upload");

                URL uploadFileUrl = null;
                try {
                    uploadFileUrl = new URL(
                        "http://www.facebook.com/images/devsite/iphone_connect_btn.jpg");
                } catch (MalformedURLException e) {
                    e.printStackTrace();
                }
                try {
                    HttpURLConnection conn= (HttpURLConnection)uploadFileUrl.openConnection();
                    conn.setDoInput(true);
                    conn.connect();
                    int length = conn.getContentLength();

                    byte[] imgData =new byte[length];
                    InputStream is = conn.getInputStream();
                    is.read(imgData);
                    params.putByteArray("picture", imgData);

                } catch  (IOException e) {
                    e.printStackTrace();
                }

                mAsyncRunner.request(null, params, "POST",
                        new SampleUploadListener(), null);
            }
        });
        mUploadButton.setVisibility(mFacebook.isSessionValid() ?
                View.VISIBLE :
                View.INVISIBLE);

        mPostButton.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                mFacebook.dialog(Example.this, "feed",
                        new SampleDialogListener());
            }
        });
        mPostButton.setVisibility(mFacebook.isSessionValid() ?
                View.VISIBLE :
                View.INVISIBLE);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode,
                                    Intent data) {
        mFacebook.authorizeCallback(requestCode, resultCode, data);
    }

    public class SampleAuthListener implements AuthListener {

        public void onAuthSucceed() {
            mText.setText("You have logged in! ");
            mRequestButton.setVisibility(View.VISIBLE);
            mUploadButton.setVisibility(View.VISIBLE);
            mPostButton.setVisibility(View.VISIBLE);
        }

        public void onAuthFail(String error) {
            mText.setText("Login Failed: " + error);
        }
    }

    public class SampleLogoutListener implements LogoutListener {
        public void onLogoutBegin() {
            mText.setText("Logging out...");
        }

        public void onLogoutFinish() {
            mText.setText("You have logged out! ");
            mRequestButton.setVisibility(View.INVISIBLE);
            mUploadButton.setVisibility(View.INVISIBLE);
            mPostButton.setVisibility(View.INVISIBLE);
        }
    }

    public class SampleRequestListener extends BaseRequestListener {

        public void onComplete(final String response, final Object state) {
            try {
                // process the response here: executed in background thread
                Log.d("Facebook-Example", "Response: " + response.toString());
                JSONObject json = Util.parseJson(response);
                final String name = json.getString("name");

                // then post the processed result back to the UI thread
                // if we do not do this, an runtime exception will be generated
                // e.g. "CalledFromWrongThreadException: Only the original
                // thread that created a view hierarchy can touch its views."
                Example.this.runOnUiThread(new Runnable() {
                    public void run() {
                        mText.setText("Hello there, " + name + "!");
                    }
                });
            } catch (JSONException e) {
                Log.w("Facebook-Example", "JSON Error in response");
            } catch (FacebookError e) {
                Log.w("Facebook-Example", "Facebook Error: " + e.getMessage());
            }
        }
    }

    public class SampleUploadListener extends BaseRequestListener {

        public void onComplete(final String response, final Object state) {
            try {
                // process the response here: (executed in background thread)
                Log.d("Facebook-Example", "Response: " + response.toString());
                JSONObject json = Util.parseJson(response);
                final String src = json.getString("src");

                // then post the processed result back to the UI thread
                // if we do not do this, an runtime exception will be generated
                // e.g. "CalledFromWrongThreadException: Only the original
                // thread that created a view hierarchy can touch its views."
                Example.this.runOnUiThread(new Runnable() {
                    public void run() {
                        mText.setText("Hello there, photo has been uploaded at \n" + src);
                    }
                });
            } catch (JSONException e) {
                Log.w("Facebook-Example", "JSON Error in response");
            } catch (FacebookError e) {
                Log.w("Facebook-Example", "Facebook Error: " + e.getMessage());
            }
        }
    }
    public class WallPostRequestListener extends BaseRequestListener {

        public void onComplete(final String response, final Object state) {
            Log.d("Facebook-Example", "Got response: " + response);
            String message = "<empty>";
            try {

                JSONObject json = Util.parseJson(response);
                message = json.getString("lithe Technologies");
            } catch (JSONException e) {
                Log.w("Facebook-Example", "JSON Error in response");
            } catch (FacebookError e) {
                Log.w("Facebook-Example", "Facebook Error: " + e.getMessage());
            }
            final String text = "Your Wall Post: " + message + "helloooo lithe";
            Example.this.runOnUiThread(new Runnable() {
                public void run() {
                    mText.setText(text);
                }
            });
        }
    }

    public class WallPostDeleteListener extends BaseRequestListener {

        public void onComplete(final String response, final Object state) {
            if (response.equals("true")) {
                Log.d("Facebook-Example", "Successfully deleted wall post");
                Example.this.runOnUiThread(new Runnable() {
                    public void run() {
                        mDeleteButton.setVisibility(View.INVISIBLE);
                        mText.setText("Deleted Wall Post");
                    }
                });
            } else {
                Log.d("Facebook-Example", "Could not delete wall post");
            }
        }
    }


    public class SampleDialogListener extends BaseDialogListener {

        public void onComplete(Bundle values) {
            final String postId = values.getString("post_id");
            if (postId != null) {
                Log.d("Facebook-Example", "Dialog Success! post_id=" + postId);
                mAsyncRunner.request(postId, new WallPostRequestListener());
                mDeleteButton.setOnClickListener(new OnClickListener() {
                    public void onClick(View v) {
                        mAsyncRunner.request(postId, new Bundle(), "DELETE",
                                new WallPostDeleteListener(), null);
                    }
                });
                mDeleteButton.setVisibility(View.VISIBLE);
            } else {
                Log.d("Facebook-Example", "No wall post made");
            }
        }
    }

}

Answer 1

将以下两个函数写入您的 Activity。

public void postToWall() {
    String message="Good Morning to All";
    Bundle parameters = new Bundle();
    parameters.putString("message", message);
    parameters.putString("description", "topic share");
    try {
        facebook.request("me");
        String response = facebook.request("me/feed", parameters, "POST");
        Log.d("Tests", "got response: " + response);
        if (response == null || response.equals("") || response.equals("false")) {
            showToast("Blank response.");
        } else {
            showToast("Message posted to your facebook wall!");
        }
    } catch (Exception e) {
        showToast("Failed to post to wall!");
        e.printStackTrace();
    }
}

2)

public boolean restoreCredentials(Facebook facebook) {
    SharedPreferences sharedPreferences = getApplicationContext().getSharedPreferences(KEY, Context.MODE_PRIVATE);
    facebook.setAccessToken(sharedPreferences.getString(TOKEN, null));
    facebook.setAccessExpires(sharedPreferences.getLong(EXPIRES, 0));
    return facebook.isSessionValid();
}

3)

public void loginAndPostToWall() {
    facebook.authorize(this, PERMISSIONS, Facebook.FORCE_DIALOG_AUTH, new LoginDialogListener());
}

将下面的代码写入您的墙贴按钮点击事件

facebook = new Facebook(APP_ID);
restoreCredentials(facebook);
if (!facebook.isSessionValid()) {
    loginAndPostToWall();
} else {
    postToWall();
}