/**
* 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.facebook.android;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.os.Handler;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.*;
import android.widget.AdapterView.OnItemClickListener;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
public class FriendsList extends Activity implements OnItemClickListener {
private Handler mHandler;
protected ListView friendsList;
protected static JSONArray jsonArray;
protected String graph_or_fql;
/*
* Layout the friends' list
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mHandler = new Handler();
setContentView(R.layout.friends_list);
Bundle extras = getIntent().getExtras();
String apiResponse = extras.getString("API_RESPONSE");
graph_or_fql = extras.getString("METHOD");
try {
if (graph_or_fql.equals("graph")) {
jsonArray = new JSONObject(apiResponse).getJSONArray("data");
} else {
jsonArray = new JSONArray(apiResponse);
}
} catch (JSONException e) {
showToast("Error: " + e.getMessage());
return;
}
friendsList = (ListView) findViewById(R.id.friends_list);
friendsList.setOnItemClickListener(this);
friendsList.setAdapter(new FriendListAdapter(this));
showToast(getString(R.string.can_post_on_wall));
}
/*
* Clicking on a friend should popup a dialog for user to post on friend's
* wall.
*/
@Override
@SuppressWarnings("deprecation")
public void onItemClick(AdapterView<?> arg0, View v, int position, long arg3) {
try {
final long friendId;
if (graph_or_fql.equals("graph")) {
friendId = jsonArray.getJSONObject(position).getLong("id");
} else {
friendId = jsonArray.getJSONObject(position).getLong("uid");
}
String name = jsonArray.getJSONObject(position).getString("name");
new AlertDialog.Builder(this).setTitle(R.string.post_on_wall_title)
.setMessage(String.format(getString(R.string.post_on_wall), name))
.setPositiveButton(R.string.yes, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Bundle params = new Bundle();
/*
* Source Tag: friend_wall_tag To write on a friend's wall,
* provide friend's UID in the 'to' parameter.
* More info on feed dialog:
* https://developers.facebook.com/docs/reference/dialogs/feed/
*/
params.putString("to", String.valueOf(friendId));
params.putString("caption", getString(R.string.app_name));
params.putString("description", getString(R.string.app_desc));
params.putString("picture", Utility.HACK_ICON_URL);
params.putString("name", getString(R.string.app_action));
Utility.mFacebook.dialog(FriendsList.this, "feed", params,
new PostDialogListener());
}
}).setNegativeButton(R.string.no, null).show();
} catch (JSONException e) {
showToast("Error: " + e.getMessage());
}
}
/*
* Callback after the message has been posted on friend's wall.
*/
public class PostDialogListener extends BaseDialogListener {
@Override
public void onComplete(Bundle values) {
final String postId = values.getString("post_id");
if (postId != null) {
showToast("Message posted on the wall.");
} else {
showToast("No message posted on the wall.");
}
}
}
public void showToast(final String msg) {
mHandler.post(new Runnable() {
@Override
public void run() {
Toast toast = Toast.makeText(FriendsList.this, msg, Toast.LENGTH_LONG);
toast.show();
}
});
}
/**
* Definition of the list adapter
*/
public class FriendListAdapter extends BaseAdapter {
private LayoutInflater mInflater;
FriendsList friendsList;
public FriendListAdapter(FriendsList friendsList) {
this.friendsList = friendsList;
if (Utility.model == null) {
Utility.model = new FriendsGetProfilePics();
}
Utility.model.setListener(this);
mInflater = LayoutInflater.from(friendsList.getBaseContext());
}
@Override
public int getCount() {
return jsonArray.length();
}
@Override
public Object getItem(int position) {
return null;
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
JSONObject jsonObject = null;
try {
jsonObject = jsonArray.getJSONObject(position);
} catch (JSONException e1) {
e1.printStackTrace();
}
View hView = convertView;
if (convertView == null) {
hView = mInflater.inflate(R.layout.friend_item, null);
ViewHolder holder = new ViewHolder();
holder.profile_pic = (ImageView) hView.findViewById(R.id.profile_pic);
holder.name = (TextView) hView.findViewById(R.id.name);
holder.info = (TextView) hView.findViewById(R.id.info);
hView.setTag(holder);
}
ViewHolder holder = (ViewHolder) hView.getTag();
try {
if (graph_or_fql.equals("graph")) {
holder.profile_pic.setImageBitmap(Utility.model.getImage(
jsonObject.getString("id"), jsonObject.getString("picture")));
} else {
holder.profile_pic.setImageBitmap(Utility.model.getImage(
jsonObject.getString("uid"), jsonObject.getString("pic_square")));
}
} catch (JSONException e) {
holder.name.setText("");
}
try {
holder.name.setText(jsonObject.getString("name"));
} catch (JSONException e) {
holder.name.setText("");
}
try {
if (graph_or_fql.equals("graph")) {
holder.info.setText(jsonObject.getJSONObject("location").getString("name"));
} else {
JSONObject location = jsonObject.getJSONObject("current_location");
holder.info.setText(location.getString("city") + ", "
+ location.getString("state"));
}
} catch (JSONException e) {
holder.info.setText("");
}
return hView;
}
}
class ViewHolder {
ImageView profile_pic;
TextView name;
TextView info;
}
}