appathon.history.PickerActivity.java Source code

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Here is the source code for appathon.history.PickerActivity.java

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/**
 * 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 appathon.history;

import java.net.URI;
import java.net.URISyntaxException;
import java.util.HashMap;
import java.util.List;

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

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.widget.Toast;
import appathon.history.MainActivity;

import com.facebook.FacebookException;
import com.facebook.model.GraphUser;
import com.facebook.widget.FriendPickerFragment;
import com.facebook.widget.PickerFragment;

/**
 * The PickerActivity enhances the Friend or Place Picker by adding a title and
 * a Done button. The selection results are saved in the ScrumptiousApplication
 * instance.
 */
public class PickerActivity extends FragmentActivity {
    private FriendPickerFragment friendPickerFragment;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.pickers);

        Bundle args = getIntent().getExtras();
        FragmentManager manager = getSupportFragmentManager();
        Fragment fragmentToShow = null;

        if (savedInstanceState == null) {
            friendPickerFragment = new FriendPickerFragment(args);
            friendPickerFragment.setFriendPickerType(FriendPickerFragment.FriendPickerType.TAGGABLE_FRIENDS);
        } else {
            friendPickerFragment = (FriendPickerFragment) manager.findFragmentById(R.id.picker_fragment);
            ;
        }

        friendPickerFragment.setOnErrorListener(new PickerFragment.OnErrorListener() {
            @Override
            public void onError(PickerFragment<?> fragment, FacebookException error) {
                PickerActivity.this.onError(error);
            }
        });

        friendPickerFragment.setOnDoneButtonClickedListener(new PickerFragment.OnDoneButtonClickedListener() {
            @Override
            public void onDoneButtonClicked(PickerFragment<?> fragment) {
                finishActivity();
            }
        });

        fragmentToShow = friendPickerFragment;

        manager.beginTransaction().replace(R.id.picker_fragment, fragmentToShow).commit();
    }

    @Override
    protected void onStart() {
        super.onStart();

        try {
            friendPickerFragment.loadData(false);
        } catch (Exception ex) {
            onError(ex);
        }
    }

    @Override
    protected void onStop() {
        super.onStop();
    }

    private void onError(Exception error) {
        String text = "exception" + error.getMessage();
        Toast toast = Toast.makeText(this, text, Toast.LENGTH_SHORT);
        toast.show();
    }

    private void onError(String error, final boolean finishActivity) {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("error_dialog_title").setMessage(error).setPositiveButton("error_dialog_button_text",
                new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        if (finishActivity) {
                            finishActivity();
                        }
                    }
                });
        builder.show();
    }

    private void finishActivity() {
        HashMap<String, URI> facebook_friends_username_imageuri = new HashMap<String, URI>();

        List<GraphUser> selectedUsers = friendPickerFragment.getSelection();

        for (GraphUser graphUser : selectedUsers) {
            JSONObject jsonUser = graphUser.getInnerJSONObject();

            URI user_avatar_uri = null;

            try {
                user_avatar_uri = new URI(jsonUser.getJSONObject("picture").getJSONObject("data").getString("url"));
            } catch (URISyntaxException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (JSONException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            facebook_friends_username_imageuri.put(graphUser.getName(), user_avatar_uri);
        }

        Intent intent = new Intent(this, MainActivity.class);

        intent.putExtra("facebook_friends_username_imageuri", facebook_friends_username_imageuri);

        startActivity(intent);
        finish();
    }

    private void showAlert(String title, String message) {
        new AlertDialog.Builder(this).setTitle(title).setMessage(message).setPositiveButton("ok", null).show();
    }
}