uni.stats.ShareFacebook.java Source code

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Here is the source code for uni.stats.ShareFacebook.java

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/*
 * Copyright 2010 Facebook, Inc.
 *
 * 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 uni.stats;

import org.json.JSONException;
import org.json.JSONObject;

import uni.stats.SessionEvents.AuthListener;
import uni.stats.SessionEvents.LogoutListener;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

import com.facebook.android.AsyncFacebookRunner;
import com.facebook.android.Facebook;
import com.facebook.android.FacebookError;
import com.facebook.android.Util;

public class ShareFacebook extends Activity {

    // Facebook Application ID
    public static final String APP_ID = "205340276201357";

    private LoginButton mLoginButton;
    private TextView mText;

    private Button mPostButton;
    private Button mPostButton2;
    private Facebook mFacebook;
    private AsyncFacebookRunner mAsyncRunner;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.facebook);
        mLoginButton = (LoginButton) findViewById(R.id.login);
        mText = (TextView) ShareFacebook.this.findViewById(R.id.txt);
        mPostButton = (Button) findViewById(R.id.postButton);
        mPostButton2 = (Button) findViewById(R.id.postButton2);
        mFacebook = new Facebook(APP_ID);
        mAsyncRunner = new AsyncFacebookRunner(mFacebook);

        SessionStore.restore(mFacebook, this);
        SessionEvents.addAuthListener(new SampleAuthListener());
        SessionEvents.addLogoutListener(new SampleLogoutListener());
        mLoginButton.init(this, mFacebook);

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

        mPostButton2.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                mFacebook.dialog(ShareFacebook.this, "feed", new SampleDialogListener());
            }
        });
        mPostButton2.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! ");
            mPostButton.setVisibility(View.VISIBLE);
            mPostButton2.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...");
            mPostButton.setVisibility(View.INVISIBLE);
            mPostButton2.setVisibility(View.INVISIBLE);

        }

        public void onLogoutFinish() {
            mText.setText("You have logged out! ");
            mPostButton.setVisibility(View.INVISIBLE);
            mPostButton2.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."
                ShareFacebook.this.runOnUiThread(new Runnable() {
                    public void run() {
                        mText.setText("Hello there, " + name + "!");
                    }
                });
            } catch (JSONException e) {
                e.printStackTrace();
            } catch (FacebookError e) {
                e.printStackTrace();
            }
        }
    }

    public class WallPostRequestListener extends BaseRequestListener {

        public void onComplete(final String response, final Object state) {

            String message = "";
            try {
                JSONObject json = Util.parseJson(response);
                message = json.getString("message");
            } catch (JSONException e) {
                e.printStackTrace();
            } catch (FacebookError e) {
                e.printStackTrace();
            }
            final String text = "Your message has been posted!";

            ShareFacebook.this.runOnUiThread(new Runnable() {
                public void run() {
                    mText.setText(text);
                }
            });
        }
    }

    public class SampleDialogListener extends BaseDialogListener {
        public void onComplete(Bundle values) {
            final String postId = values.getString("post_id");
            if (postId != null) {
                mAsyncRunner.request(postId, new WallPostRequestListener());
            }
        }
    }

}