Android发布图片到Facebook墙上

我正试图在Facebook上张贴一张图片到我的墙上。 我已经login并发布了文本到墙上。 但是，当我尝试张贴图片时，没有任何反应。

我正在使用Android Facebook SDK 。

这是我到目前为止：

Bundle params = new Bundle(); params.putString("method", "photos.upload"); Toast.makeText(FacebookPoster.this, "" + getIntent().getExtras().getByteArray("data").length, Toast.LENGTH_SHORT).show(); params.putByteArray("picture", getIntent().getExtras().getByteArray("data")); AsyncFacebookRunner mAsyncRunner = new AsyncFacebookRunner(facebook); mAsyncRunner.request(null, params, "POST", new SampleUploadListener(), null); 

吐司显示8733，这意味着字节数组不是空的

NB。 Logcat输出一些警告（不是错误）：

 03-02 14:19:29.554: WARN/Bundle(1891): Attempt to cast generated internal exception: 03-02 14:19:29.554: WARN/Bundle(1891): java.lang.ClassCastException: java.lang.String 03-02 14:19:29.554: WARN/Bundle(1891): at android.os.Bundle.getByteArray(Bundle.java:1305) 03-02 14:19:29.554: WARN/Bundle(1891): at com.facebook.android.Util.openUrl(Util.java:155) 03-02 14:19:29.554: WARN/Bundle(1891): at com.facebook.android.Facebook.request(Facebook.java:559) 03-02 14:19:29.554: WARN/Bundle(1891): at com.facebook.android.AsyncFacebookRunner$2.run(AsyncFacebookRunner.java:253) 03-02 14:19:29.584: WARN/Bundle(1891): Key method expected byte[] but value was a java.lang.String. The default value <null> was returned. 

（在对方下面显示几次）

我究竟做错了什么？

---

解决了。 这是我做的工作：

 facebook.authorize(this, new String[] { "publish_stream" }, new DialogListener() { @Override public void onFacebookError(FacebookError e) { // TODO Auto-generated method stub } @Override public void onError(DialogError dialogError) { // TODO Auto-generated method stub } @Override public void onComplete(Bundle values) { postToWall(values.getString(Facebook.TOKEN)); } @Override public void onCancel() { // TODO Auto-generated method stub } }); 

而辅助方法：

 private void postToWall(String accessToken) { Bundle params = new Bundle(); params.putString(Facebook.TOKEN, accessToken); // The byte array is the data of a picture. params.putByteArray("picture", getIntent().getExtras().getByteArray("data")); try { facebook.request("me/photos", params, "POST"); } catch (FileNotFoundException fileNotFoundException) { makeToast(fileNotFoundException.getMessage()); } catch (MalformedURLException malformedURLException) { makeToast(malformedURLException.getMessage()); } catch (IOException ioException) { makeToast(ioException.getMessage()); } } 

Answer 1

首先，你是不是使用graphicsAPI上传图片…你使用旧的restAPI …尝试使用graphicsAPI，其简单…

使用以下代码：

 Bundle param = new Bundle(); param.putString("message", "picture caption"); param.putByteArray("picture", ImageBytes); mAsyncRunner.request("me/photos", param, "POST", new SampleUploadListener()); 

根据错误消息，它看起来像从意图的包中获取字节时给出的错误…

Answer 2

 btnLogin.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub facebook.authorize(FbdemoActivity.this, new String[]{ "user_photos,publish_checkins,publish_actions,publish_stream"},new DialogListener() { @Override public void onComplete(Bundle values) { } @Override public void onFacebookError(FacebookError error) { } @Override public void onError(DialogError e) { } @Override public void onCancel() { } }); } }); public void postImageonWall() { byte[] data = null; Bitmap bi = BitmapFactory.decodeFile("/sdcard/viewitems.png"); ByteArrayOutputStream baos = new ByteArrayOutputStream(); bi.compress(Bitmap.CompressFormat.JPEG, 100, baos); data = baos.toByteArray(); Bundle params = new Bundle(); params.putString(Facebook.TOKEN, facebook.getAccessToken()); params.putString("method", "photos.upload"); params.putByteArray("picture", data); AsyncFacebookRunner mAsyncRunner = new AsyncFacebookRunner(facebook); mAsyncRunner.request(null, params, "POST", new SampleUploadListener(), null); } 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 // eg "CalledFromWrongThreadException: Only the original // thread that created a view hierarchy can touch its views." } catch (JSONException e) { Log.w("Facebook-Example", "JSON Error in response"); } catch (FacebookError e) { Log.w("Facebook-Example", "Facebook Error: " + e.getMessage()); } } @Override public void onFacebookError(FacebookError e, Object state) { } } 

试试这个代码，它将工作我已经使用相同的代码，并在Facebook上传图像。

Answer 3

这是工作代码示例。 传递图像path和消息。

 public static void postImageonWall(String FilePath,String msg ) { try { Bitmap bi = BitmapFactory.decodeFile(FilePath); AsyncFacebookRunner mAsyncRunner = new AsyncFacebookRunner(facebook); ByteArrayOutputStream stream = new ByteArrayOutputStream(); bi.compress(Bitmap.CompressFormat.PNG, 100, stream); // where bm is bitmap from Sdcard byte[] byteArray = stream.toByteArray(); Bundle param = new Bundle(); param = new Bundle(); param.putString("message", msg); param.putString("filename", "Dessert Dash"); param.putByteArray("image", byteArray); param.putString("caption", "Dessert Dash in Android Market Now"); mAsyncRunner.request("me/photos", param, "POST", fbrq, null); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } 

Answer 4

 private String postwall(String uid) { String response = ""; try { String DIRECTORY_PATH = "/sdcard/159.jpg"; Bundle params = new Bundle(); Bitmap bitmap = BitmapFactory.decodeFile(DIRECTORY_PATH); byte[] data = null; ByteArrayOutputStream baos = new ByteArrayOutputStream(); bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos); data = baos.toByteArray(); params.putString("app_id", uid); params.putString("message", "picture caption"); params.putByteArray("picture", data); mFacebook.authorize(this, PERMISSIONS, new LoginDialogListener()); mAsyncRunner.request("me/photos", params, "POST", new WallPostRequestListener()); mAsyncRunner.request(response, new WallPostRequestListener()); Log.e("post result", response); } catch (Exception e) { e.printStackTrace(); } return response; } public class WallPostRequestListener extends BaseRequestListener { public void onComplete(final String response) { Log.d("Facebook-Example", "Got response: " + response); String message = "<empty>"; try { JSONObject json = Util.parseJson(response); message = json.getString("message"); } 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; } } 

Answer 5

我相信Facebook最终会解决这个问题，但是目前这些例子（由其他用户发布）是非常具有误导性的，因为它们实际上并没有贴到用户的墙上（通常意义上）。 相反，他们被添加到用户的照片库，然后碰巧最终在墙上，但不是在正常职位工作的相同方式…没有标题，没有标题，如果你添加另一张照片它结束了与第一个（而不是单独的条目）并排。 所以，当你使用api命令我/喂它只是在一个壮观的方式，它实际上添加一个post的墙壁，但它是一个空的post从应用程序（它甚至不理会标题和标题）失败。

希望Facebook能够在短期内解决这个问题。

Answer 6

将代码中的图片和文字发布到Facebook墙上，然后使用Facebook凭据login。

注意：这仅适用于使用Facebook凭据login到您的应用程序

 sharePhotoToFacebook(); //function called from any UI event private void sharePhotoToFacebook(){ Bitmap bitmap=null; String path = Environment.getExternalStorageDirectory().getAbsolutePath()+"/Download/"; try { File file = new File(path, "image9.jpg"); bitmap = BitmapFactory.decodeFile(file.getAbsolutePath()); } catch (Exception e){ Log.e("Error" , " Error in loading file"); } SharePhoto photo = new SharePhoto.Builder() .setBitmap(bitmap) .setCaption("A post from Android code") .build(); SharePhotoContent content = new SharePhotoContent.Builder() .addPhoto(photo) .build(); ShareApi.share(content, null); Toast.makeText(LoginSuccessActivity.this, "Image posted successfully", Toast.LENGTH_LONG).show(); }