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POAndroid post picture to Facebook wall
 

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  1. POAndroid post picture to Facebook wall
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    <p>I am trying to post a picture to my wall on Facebook. I have managed logging in and posting text to the wall. However, when I try posting the picture, nothing happens.</p> <p>I am using the <a href="https://github.com/facebook/facebook-android-sdk" rel="noreferrer">Android Facebook SDK</a>.</p> <p>Here is what I have so far:</p> <pre><code> 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); </code></pre> <p>The Toast shows 8733, which means the byte array isn't empty</p> <p>NB. Logcat output some warnings (not errors):</p> <pre><code>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 &lt;null&gt; was returned. </code></pre> <p>(Shows several times underneath each other.)</p> <p><strong>What am I doing wrong?</strong></p> <hr> <p><strong>SOLVED.</strong> This is what I did to make it work:</p> <pre><code>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 } }); </code></pre> <p>And the helper method:</p> <pre><code>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()); } } </code></pre>
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    1. USJean-François Corbett
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    1. CO@Whirlwin... I am still getting that exception... I am also able to see this in javadoc 'Note that binary data parameters (e.g. pictures) are not yet supported by this helper' for function.facebook.request
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    2. COLast time I tested it (about 40 days ago), it worked for Android 2.1. But I changed the order of some lines in the helper method `postToWall(...)`. So now, it is: `Bundle bundle = new Bundle(); bundle.putByteArray("facebookPictureData", pictureData); bundle.putString(Facebook.TOKEN, accessToken); ` pluss the rest of the code that in that method which is unchanged. BTW: `pictureData` is just the byte array. Hope it works for you too. :)
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    3. CO@Whirlwin...+1 (for the question, answer and the comment) Thank you very much. You really helped me in a TIGHTTTTT situation. :) :) :)...
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