Java tutorial
/** * Copyright 2010-present Facebook. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.tmm.android.facebook; import android.app.AlertDialog; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.location.Location; import android.os.Bundle; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentManager; import android.text.TextUtils; import android.util.Log; import android.view.View; import android.view.ViewGroup; import android.widget.Button; import android.widget.TextView; import android.widget.Toast; import com.facebook.*; import com.facebook.model.GraphObject; import com.facebook.model.GraphPlace; import com.facebook.model.GraphUser; import com.facebook.widget.*; import com.tmm.android.twitter.R; import java.util.*; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; public class HelloFacebookSampleActivity extends FragmentActivity { private static final String PERMISSION = "publish_actions"; private static final Location SEATTLE_LOCATION = new Location("") { { setLatitude(47.6097); setLongitude(-122.3331); } }; private final String PENDING_ACTION_BUNDLE_KEY = "com.facebook.samples.hellofacebook:PendingAction"; private Button postStatusUpdateButton; private Button postPhotoButton; private Button pickFriendsButton; private Button pickPlaceButton; private Button getpostButton; private LoginButton loginButton; private ProfilePictureView profilePictureView; private TextView greeting; private PendingAction pendingAction = PendingAction.NONE; private ViewGroup controlsContainer; private GraphUser user; private GraphPlace place; private List<GraphUser> tags; private boolean canPresentShareDialog; private enum PendingAction { NONE, POST_PHOTO, POST_STATUS_UPDATE } private UiLifecycleHelper uiHelper; private Session.StatusCallback callback = new Session.StatusCallback() { @Override public void call(Session session, SessionState state, Exception exception) { onSessionStateChange(session, state, exception); } }; private FacebookDialog.Callback dialogCallback = new FacebookDialog.Callback() { @Override public void onError(FacebookDialog.PendingCall pendingCall, Exception error, Bundle data) { Log.d("HelloFacebook", String.format("Error: %s", error.toString())); } @Override public void onComplete(FacebookDialog.PendingCall pendingCall, Bundle data) { Log.d("HelloFacebook", "Success!"); } }; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); uiHelper = new UiLifecycleHelper(this, callback); uiHelper.onCreate(savedInstanceState); if (savedInstanceState != null) { String name = savedInstanceState.getString(PENDING_ACTION_BUNDLE_KEY); pendingAction = PendingAction.valueOf(name); } setContentView(R.layout.facebook); loginButton = (LoginButton) findViewById(R.id.login_button); loginButton.setUserInfoChangedCallback(new LoginButton.UserInfoChangedCallback() { @Override public void onUserInfoFetched(GraphUser user) { HelloFacebookSampleActivity.this.user = user; updateUI(); // It's possible that we were waiting for this.user to be populated in order to post a // status update. handlePendingAction(); } }); profilePictureView = (ProfilePictureView) findViewById(R.id.profilePicture); greeting = (TextView) findViewById(R.id.greeting); postStatusUpdateButton = (Button) findViewById(R.id.postStatusUpdateButton); postStatusUpdateButton.setOnClickListener(new View.OnClickListener() { public void onClick(View view) { onClickPostStatusUpdate(); } }); getpostButton = (Button) findViewById(R.id.getpostButton); getpostButton.setOnClickListener(new View.OnClickListener() { public void onClick(View view) { getpost(); } }); postPhotoButton = (Button) findViewById(R.id.postPhotoButton); postPhotoButton.setOnClickListener(new View.OnClickListener() { public void onClick(View view) { onClickPostPhoto(); } }); pickFriendsButton = (Button) findViewById(R.id.pickFriendsButton); pickFriendsButton.setOnClickListener(new View.OnClickListener() { public void onClick(View view) { onClickPickFriends(); } }); pickPlaceButton = (Button) findViewById(R.id.pickPlaceButton); pickPlaceButton.setOnClickListener(new View.OnClickListener() { public void onClick(View view) { onClickPickPlace(); } }); controlsContainer = (ViewGroup) findViewById(R.id.main_ui_container); final FragmentManager fm = getSupportFragmentManager(); Fragment fragment = fm.findFragmentById(R.id.fragment_container); if (fragment != null) { // If we're being re-created and have a fragment, we need to a) hide the main UI controls and // b) hook up its listeners again. controlsContainer.setVisibility(View.GONE); if (fragment instanceof FriendPickerFragment) { setFriendPickerListeners((FriendPickerFragment) fragment); } else if (fragment instanceof PlacePickerFragment) { setPlacePickerListeners((PlacePickerFragment) fragment); } } // Listen for changes in the back stack so we know if a fragment got popped off because the user // clicked the back button. fm.addOnBackStackChangedListener(new FragmentManager.OnBackStackChangedListener() { @Override public void onBackStackChanged() { if (fm.getBackStackEntryCount() == 0) { // We need to re-show our UI. controlsContainer.setVisibility(View.VISIBLE); } } }); canPresentShareDialog = FacebookDialog.canPresentShareDialog(this, FacebookDialog.ShareDialogFeature.SHARE_DIALOG); } @Override protected void onResume() { super.onResume(); uiHelper.onResume(); updateUI(); } @Override protected void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); uiHelper.onSaveInstanceState(outState); outState.putString(PENDING_ACTION_BUNDLE_KEY, pendingAction.name()); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); uiHelper.onActivityResult(requestCode, resultCode, data, dialogCallback); } @Override public void onPause() { super.onPause(); uiHelper.onPause(); } @Override public void onDestroy() { super.onDestroy(); uiHelper.onDestroy(); } private void onSessionStateChange(Session session, SessionState state, Exception exception) { if (pendingAction != PendingAction.NONE && (exception instanceof FacebookOperationCanceledException || exception instanceof FacebookAuthorizationException)) { new AlertDialog.Builder(HelloFacebookSampleActivity.this).setTitle(R.string.cancelled) .setMessage(R.string.permission_not_granted).setPositiveButton(R.string.ok, null).show(); pendingAction = PendingAction.NONE; } else if (state == SessionState.OPENED_TOKEN_UPDATED) { handlePendingAction(); } updateUI(); } private void updateUI() { Session session = Session.getActiveSession(); boolean enableButtons = (session != null && session.isOpened()); postStatusUpdateButton.setEnabled(enableButtons || canPresentShareDialog); // postPhotoButton.setEnabled(enableButtons); pickFriendsButton.setEnabled(enableButtons); //pickPlaceButton.setEnabled(enableButtons); if (enableButtons && user != null) { profilePictureView.setProfileId(user.getId()); greeting.setText(getString(R.string.hello_user, user.getFirstName())); } else { profilePictureView.setProfileId(null); greeting.setText(null); } } @SuppressWarnings("incomplete-switch") private void handlePendingAction() { PendingAction previouslyPendingAction = pendingAction; // These actions may re-set pendingAction if they are still pending, but we assume they // will succeed. pendingAction = PendingAction.NONE; switch (previouslyPendingAction) { case POST_PHOTO: postPhoto(); break; case POST_STATUS_UPDATE: postStatusUpdate(); break; } } private interface GraphObjectWithId extends GraphObject { String getId(); } private void showPublishResult(String message, GraphObject result, FacebookRequestError error) { String title = null; String alertMessage = null; if (error == null) { title = getString(R.string.success); String id = result.cast(GraphObjectWithId.class).getId(); alertMessage = getString(R.string.successfully_posted_post, message, id); } else { title = getString(R.string.error); alertMessage = error.getErrorMessage(); } new AlertDialog.Builder(this).setTitle(title).setMessage(alertMessage).setPositiveButton(R.string.ok, null) .show(); } private void onClickPostStatusUpdate() { performPublish(PendingAction.POST_STATUS_UPDATE, canPresentShareDialog); } private FacebookDialog.ShareDialogBuilder createShareDialogBuilder() { return new FacebookDialog.ShareDialogBuilder(this).setName("Hello Facebook") .setDescription("The 'Hello Facebook' sample application showcases simple Facebook integration") .setLink("http://developers.facebook.com/android"); } private void postStatusUpdate() { if (canPresentShareDialog) { FacebookDialog shareDialog = createShareDialogBuilder().build(); uiHelper.trackPendingDialogCall(shareDialog.present()); } else if (user != null && hasPublishPermission()) { final String message = getString(R.string.status_update, user.getFirstName(), (new Date().toString())); Request request = Request.newStatusUpdateRequest(Session.getActiveSession(), message, place, tags, new Request.Callback() { @Override public void onCompleted(Response response) { showPublishResult(message, response.getGraphObject(), response.getError()); } }); request.executeAsync(); } else { pendingAction = PendingAction.POST_STATUS_UPDATE; } } private void onClickPostPhoto() { performPublish(PendingAction.POST_PHOTO, false); } private void postPhoto() { if (hasPublishPermission()) { Bitmap image = BitmapFactory.decodeResource(this.getResources(), R.drawable.icon); Request request = Request.newUploadPhotoRequest(Session.getActiveSession(), image, new Request.Callback() { @Override public void onCompleted(Response response) { showPublishResult(getString(R.string.photo_post), response.getGraphObject(), response.getError()); } }); request.executeAsync(); } else { pendingAction = PendingAction.POST_PHOTO; } } private void showPickerFragment(PickerFragment<?> fragment) { fragment.setOnErrorListener(new PickerFragment.OnErrorListener() { @Override public void onError(PickerFragment<?> pickerFragment, FacebookException error) { String text = getString(R.string.exception, error.getMessage()); Toast toast = Toast.makeText(HelloFacebookSampleActivity.this, text, Toast.LENGTH_SHORT); toast.show(); } }); FragmentManager fm = getSupportFragmentManager(); fm.beginTransaction().replace(R.id.fragment_container, fragment).addToBackStack(null).commit(); controlsContainer.setVisibility(View.GONE); // We want the fragment fully created so we can use it immediately. fm.executePendingTransactions(); fragment.loadData(false); } private void onClickPickFriends() { final FriendPickerFragment fragment = new FriendPickerFragment(); setFriendPickerListeners(fragment); showPickerFragment(fragment); } private void setFriendPickerListeners(final FriendPickerFragment fragment) { fragment.setOnDoneButtonClickedListener(new FriendPickerFragment.OnDoneButtonClickedListener() { @Override public void onDoneButtonClicked(PickerFragment<?> pickerFragment) { onFriendPickerDone(fragment); } }); } private void onFriendPickerDone(FriendPickerFragment fragment) { FragmentManager fm = getSupportFragmentManager(); fm.popBackStack(); String results = ""; List<GraphUser> selection = fragment.getSelection(); tags = selection; if (selection != null && selection.size() > 0) { ArrayList<String> names = new ArrayList<String>(); for (GraphUser user : selection) { names.add(user.getName()); } results = TextUtils.join(", ", names); } else { results = getString(R.string.no_friends_selected); } showAlert(getString(R.string.you_picked), results); } private void onPlacePickerDone(PlacePickerFragment fragment) { FragmentManager fm = getSupportFragmentManager(); fm.popBackStack(); String result = ""; GraphPlace selection = fragment.getSelection(); if (selection != null) { result = selection.getName(); } else { result = getString(R.string.no_place_selected); } place = selection; showAlert(getString(R.string.you_picked), result); } private void onClickPickPlace() { final PlacePickerFragment fragment = new PlacePickerFragment(); fragment.setLocation(SEATTLE_LOCATION); fragment.setTitleText(getString(R.string.pick_seattle_place)); setPlacePickerListeners(fragment); showPickerFragment(fragment); } private void setPlacePickerListeners(final PlacePickerFragment fragment) { fragment.setOnDoneButtonClickedListener(new PlacePickerFragment.OnDoneButtonClickedListener() { @Override public void onDoneButtonClicked(PickerFragment<?> pickerFragment) { onPlacePickerDone(fragment); } }); fragment.setOnSelectionChangedListener(new PlacePickerFragment.OnSelectionChangedListener() { @Override public void onSelectionChanged(PickerFragment<?> pickerFragment) { if (fragment.getSelection() != null) { onPlacePickerDone(fragment); } } }); } private void showAlert(String title, String message) { new AlertDialog.Builder(this).setTitle(title).setMessage(message).setPositiveButton(R.string.ok, null) .show(); } private boolean hasPublishPermission() { Session session = Session.getActiveSession(); return session != null && session.getPermissions().contains("publish_actions"); } private void performPublish(PendingAction action, boolean allowNoSession) { Session session = Session.getActiveSession(); if (session != null) { pendingAction = action; if (hasPublishPermission()) { // We can do the action right away. handlePendingAction(); return; } else if (session.isOpened()) { // We need to get new permissions, then complete the action when we get called back. session.requestNewPublishPermissions(new Session.NewPermissionsRequest(this, PERMISSION)); return; } } if (allowNoSession) { pendingAction = action; handlePendingAction(); } } private void getpost() { try { /* Session.openActiveSessionWithAccessToken(this, token, new Session.StatusCallback() { @Override public void call(Session session, SessionState state, Exception exception) { // TODO Auto-generated method stub */ /*if (Session.isOpened()) {*/ Session session = Session.getActiveSession(); Log.d("Graph API", " 1 Graph API"); Request.newGraphPathRequest(session, "me/home", new Request.Callback() { @Override public void onCompleted(Response response) { // TODO Auto-generated // method stub Log.d("Graph API", "On complete"); JSONObject jsonObject = null; JSONArray jArray = null; try { jsonObject = new JSONObject(response.getGraphObject().getInnerJSONObject().toString()); jArray = jsonObject.getJSONArray("data"); for (int i = 0; i < jArray.length(); i++) { JSONObject element = null; element = jArray.getJSONObject(i); Log.d("Graph API", "Graph API element"); System.out.println(element.get("id") + "\n"); } } catch (JSONException e) { // TODO: handle // exception,, System.out.println("JSON EXCEPTION:" + e); } } }); /*} else { System.out .println("KONEKCIJA NIJE OTVORENA"); }*/ /* } });*/ } catch (Exception e) { // TODO: handle exception System.out.println("Greska PRILIKOM vracanja grafa:" + e.toString()); } } }