Ok so here is a dialog fragment I made that uses Facebook's 3.0 SDK for Android. It is encapsulated, meaning all of the Facebook functionality is contained in the fragment. This is a dialog fragment so it pops up over your running activity. This fragment lets you login, then enables certain views once you are logged in using the UiHelper class included with Facebook.
public class FFragment extends DialogFragment {
private static final String TAG = "FacebookFragment";
private UiLifecycleHelper uiHelper;
private String mFilePath;
private Button shareButton, cancelButton;
private EditText mMessageText;
private TextView mMessageTitle;
private ProgressBar pBar;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.facebook_login, container, false);
LoginButton authButton = (LoginButton) view
.findViewById(R.id.authButton);
authButton.setFragment(this);
authButton.setPublishPermissions(Arrays.asList("publish_stream"));
shareButton = (Button) view.findViewById(R.id.shareButton);
mMessageText = (EditText) view.findViewById(R.id.facebook_post_text);
mMessageTitle = (TextView) view.findViewById(R.id.facebook_post_title);
cancelButton = (Button) view.findViewById(R.id.cancelButton);
pBar = (ProgressBar) view.findViewById(R.id.facebook_pbar);
cancelButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
FFragment.this.dismiss();
}
});
shareButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
publishPhoto();
}
});
return view;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mFilePath = getArguments().getString("file_path");
uiHelper = new UiLifecycleHelper(getActivity(), callback);
uiHelper.onCreate(savedInstanceState);
}
/**
* After user selects to upload photo
*/
private void publishPhoto() {
pBar.setVisibility(View.VISIBLE);
GraphObject graphObject;
Bitmap bmap = BitmapFactory.decodeFile(mFilePath);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
byte[] byteArray = stream.toByteArray();
Bundle params = new Bundle();
params.putByteArray("picture", byteArray);
params.putString("message", mMessageText.getText() + " " +
getActivity().getResources().getString("String goes here"));
Request request = new Request(Session.getActiveSession(), "me/photos",params,
HttpMethod.POST);
request.setCallback(new Request.Callback() {
@Override
public void onCompleted(Response response) {
if (response.getError()==null) {
Toast.makeText(getActivity(), "Successfully posted photo", Toast.LENGTH_SHORT).show();
FlurryAgent.logEvent(Globals.EVENT_FACEBOOK);
} else {
Toast.makeText(getActivity(), response.getError().getErrorMessage(), Toast.LENGTH_SHORT).show();
}
pBar.setVisibility(View.GONE);
FFragment.this.dismiss();
}
});
request.executeAsync();
}
private void onSessionStateChange(Session session, SessionState state,
Exception exception) {
if (state.isOpened()) {
Log.i(TAG, "Logged in...");
// Check for reading user_photos permission
shareButton.setVisibility(View.VISIBLE);
mMessageText.setVisibility(View.VISIBLE);
mMessageTitle.setVisibility(View.VISIBLE);
} else if (state.isClosed()) {
Log.i(TAG, "Logged out...");
shareButton.setVisibility(View.GONE);
mMessageText.setVisibility(View.GONE);
mMessageTitle.setVisibility(View.GONE);
}
}
private Session.StatusCallback callback = new Session.StatusCallback() {
@Override
public void call(Session session, SessionState state,
Exception exception) {
onSessionStateChange(session, state, exception);
}
};
@Override
public void onResume() {
super.onResume();
uiHelper.onResume();
// For scenarios where the main activity is launched and user
// session is not null, the session state change notification
// may not be triggered. Trigger it if it's open/closed.
Session session = Session.getActiveSession();
if (session != null && (session.isOpened() || session.isClosed())) {
onSessionStateChange(session, session.getState(), null);
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
uiHelper.onActivityResult(requestCode, resultCode, data);
}
@Override
public void onPause() {
super.onPause();
uiHelper.onPause();
}
@Override
public void onDestroy() {
super.onDestroy();
uiHelper.onDestroy();
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
uiHelper.onSaveInstanceState(outState);
}
}
The following lines of code are what you would use in your activity to show the dialog.
FFragment mFacebookFragment = new FFragment();
Bundle args = new Bundle();
args.putString("file_path", mFilePath);
mFacebookFragment.setArguments(args);
mFacebookFragment.show(getSupportFragmentManager(), "tag");
Anyhow if you look on the onCreate we are settings the publish permissions. By default the read permissions are already set when the fragment starts up.
Also make you you have this in the manifest.
<meta-data android:name="com.facebook.sdk.ApplicationId" android:value="@string/app_id"/>
Where @string/app_id is the app id you made when created facbeook application on developers site.
Also be sure to download the new sdk facebook project and reference it as a library project.
XML File for dialog layout.
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="vertical" >
<com.facebook.widget.LoginButton
android:id="@+id/authButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:layout_gravity="center_horizontal|top" />
<TextView
android:id="@+id/facebook_post_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:text="Message to post with photo"
android:textColor="@android:color/white"
android:textSize="18dp"
android:textStyle="bold"
android:visibility="gone" />
<EditText
android:id="@+id/facebook_post_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minLines="3"
android:visibility="gone" />
<Button
android:id="@+id/shareButton"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="30dp"
android:gravity="center"
android:text="Post"
android:textStyle="bold"
android:visibility="gone" />
<Button
android:id="@+id/cancelButton"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Cancel"
android:textStyle="bold" />
</LinearLayout>
<ProgressBar
android:id="@+id/facebook_pbar"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_gravity="center"
android:visibility="gone"
/>
