MessagesActivity.java
package org.example.fbapp;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.MalformedURLException;
import java.util.ArrayList;
import java.util.HashMap;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import com.facebook.android.AsyncFacebookRunner;
import com.facebook.android.Facebook;
import com.facebook.android.FacebookError;
import com.facebook.android.AsyncFacebookRunner.RequestListener;
import android.app.ListActivity;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.util.Log;
import android.widget.ArrayAdapter;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;
public class MessagesActivity extends ListActivity {
// Your Facebook APP ID
private static String APP_ID = "549603678442054";
ListAdapter adapter;
// JSON Node names
private static final String TAG_DATA = "data";
private static final String TAG_MESSAGE = "message";
// data JSONArray
JSONArray data = null;
// Instance of Facebook Class
@SuppressWarnings("deprecation")
private Facebook facebook = new Facebook(APP_ID);
@SuppressWarnings("deprecation")
private AsyncFacebookRunner mAsyncRunner;
String FILENAME = "AndroidSSO_data";
private SharedPreferences mPrefs;
// Hashmap for ListView
ArrayList<HashMap<String, String>> messages = new ArrayList<HashMap<String, String>>();
private ListView lv;
ListView mylistview;
ArrayList<String> array_months;
ArrayAdapter<String> listAdapter;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.contacts_view);
mAsyncRunner = new AsyncFacebookRunner(facebook);
ListAdapter adapter = createAdapter();
setListAdapter(adapter);
}
/**
* Creates and returns a list adapter for the current list activity
*
* @return
*/
@SuppressWarnings("deprecation")
protected ListAdapter createAdapter()
{
mAsyncRunner.request("203153109726651/feed", new RequestListener() {
@Override
public void onComplete(String response, Object state) {
Log.d("GET POSTS", response);
String json = response;
try {
// Facebook Profile JSON data
JSONObject obj = new JSONObject(json);
JSONArray finalObj = obj.getJSONArray("data");
array_months = new ArrayList<String>();
for (int i = 0; i < finalObj.length(); i++) {
final String message = finalObj.getJSONObject(i)
.getString("message");
array_months.add(message);
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(),
"Name: " + message, Toast.LENGTH_LONG)
.show();
}
});
}
// Create a simple array adapter (of type string) with the test values
//ListAdapter adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, adapter);
adapter = new ArrayAdapter<String>(MessagesActivity.this,
android.R.layout.simple_list_item_1, array_months);
} catch (JSONException e) {
e.printStackTrace();
}
}
@Override
public void onIOException(IOException e, Object state) {
}
@Override
public void onFileNotFoundException(FileNotFoundException e,
Object state) {
}
@Override
public void onMalformedURLException(MalformedURLException e,
Object state) {
}
@Override
public void onFacebookError(FacebookError e, Object state) {
}
});
//setListAdapter(listAdapter);
return adapter;
}
}
FBAppActivity.java
package org.example.fbapp;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.MalformedURLException;
import java.util.ArrayList;
import java.util.HashMap;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;
import com.facebook.android.AsyncFacebookRunner;
import com.facebook.android.AsyncFacebookRunner.RequestListener;
import com.facebook.android.DialogError;
import com.facebook.android.Facebook;
import com.facebook.android.Facebook.DialogListener;
import com.facebook.android.FacebookError;
@SuppressWarnings("deprecation")
public class FBAppActivity extends Activity {
// Your Facebook APP ID
private static String APP_ID = "549603678442054";
// JSON Node names
private static final String TAG_DATA = "data";
private static final String TAG_MESSAGE = "message";
// data JSONArray
JSONArray data = null;
// Instance of Facebook Class
private Facebook facebook = new Facebook(APP_ID);
private AsyncFacebookRunner mAsyncRunner;
String FILENAME = "AndroidSSO_data";
private SharedPreferences mPrefs;
// Hashmap for ListView
ArrayList<HashMap<String, String>> messages = new ArrayList<HashMap<String, String>>();
private ListView lv;
// Buttons
Button btnFbLogin;
Button btnFbGetProfile;
Button btnPostToWall;
Button btnShowAccessTokens;
Button btnFbLogout;
Button btnGetPost;
@SuppressWarnings("deprecation")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fbapp);
// facebook = new Facebook(APP_ID);
btnFbLogin = (Button) findViewById(R.id.btn_fblogin);
btnFbGetProfile = (Button) findViewById(R.id.btn_get_profile);
btnPostToWall = (Button) findViewById(R.id.btn_fb_post_to_wall);
btnShowAccessTokens = (Button) findViewById(R.id.btn_show_access_tokens);
btnFbLogout = (Button) findViewById(R.id.btn_logout);
btnGetPost = (Button) findViewById(R.id.btn_group_posts);
mAsyncRunner = new AsyncFacebookRunner(facebook);
/**
* Login button Click event
* */
btnFbLogin.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.d("Image Button", "button Clicked");
loginToFacebook();
}
});
/**
* Logout button Click event
* */
btnFbLogout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.d("Logout Button", "button Clicked");
logoutFromFacebook();
}
});
/**
* Getting facebook Profile info
* */
btnFbGetProfile.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
getProfileInformation();
}
});
/**
* Posting to Facebook Wall
* */
btnPostToWall.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
postToWall();
}
});
/**
* Get Posts from Group
* */
btnGetPost.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// getGroupPosts();
//getGPosts();
startActivity(new Intent(FBAppActivity.this, MessagesActivity.class));
}
});
/**
* Showing Access Tokens
* */
btnShowAccessTokens.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
showAccessTokens();
}
});
}
/**
* Function to login into facebook
* */
@SuppressWarnings("deprecation")
public void loginToFacebook() {
mPrefs = getPreferences(MODE_PRIVATE);
String access_token = mPrefs.getString("access_token", null);
long expires = mPrefs.getLong("access_expires", 0);
if (access_token != null) {
facebook.setAccessToken(access_token);
btnFbLogin.setVisibility(View.INVISIBLE);
// Making get profile button visible
btnFbGetProfile.setVisibility(View.VISIBLE);
// Making post to wall visible
btnPostToWall.setVisibility(View.VISIBLE);
// Making show access tokens button visible
btnShowAccessTokens.setVisibility(View.VISIBLE);
// Making logout button visible
btnFbLogout.setVisibility(View.VISIBLE);
// Making group posts button visible
btnGetPost.setVisibility(View.VISIBLE);
Log.d("FB Sessions", "" + facebook.isSessionValid());
}
if (expires != 0) {
facebook.setAccessExpires(expires);
}
if (!facebook.isSessionValid()) {
facebook.authorize(this, new String[] { "email", "publish_stream",
"user_groups" }, new DialogListener() {
@Override
public void onCancel() {
// Function to handle cancel event
}
@Override
public void onComplete(Bundle values) {
// Function to handle complete event
// Edit Preferences and update facebook acess_token
SharedPreferences.Editor editor = mPrefs.edit();
editor.putString("access_token", facebook.getAccessToken());
editor.putLong("access_expires",
facebook.getAccessExpires());
editor.commit();
// Making Login button invisible
btnFbLogin.setVisibility(View.INVISIBLE);
// Making logout Button visible
btnFbGetProfile.setVisibility(View.VISIBLE);
// Making post to wall visible
btnPostToWall.setVisibility(View.VISIBLE);
// Making show access tokens button visible
btnShowAccessTokens.setVisibility(View.VISIBLE);
// Making logout button visible
btnFbLogout.setVisibility(View.VISIBLE);
// Making group posts button visible
btnGetPost.setVisibility(View.VISIBLE);
}
@Override
public void onError(DialogError error) {
// Function to handle error
}
@Override
public void onFacebookError(FacebookError fberror) {
// Function to handle Facebook errors
}
});
}
}
@SuppressWarnings("deprecation")
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
facebook.authorizeCallback(requestCode, resultCode, data);
}
/**
* Get Profile information by making request to Facebook Graph API
* */
@SuppressWarnings("deprecation")
public void getProfileInformation() {
mAsyncRunner.request("me", new RequestListener() {
@Override
public void onComplete(String response, Object state) {
Log.d("Profile", response);
String json = response;
try {
// Facebook Profile JSON data
JSONObject profile = new JSONObject(json);
// getting name of the user
final String name = profile.getString("name");
// getting email of the user
final String email = profile.getString("email");
JSONObject birthday = profile.getJSONObject("location");
final String location = birthday.getString("name");
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(
getApplicationContext(),
"Name: " + name + "\nEmail: " + email
+ "\nLocation: " + location,
Toast.LENGTH_LONG).show();
}
});
} catch (JSONException e) {
e.printStackTrace();
}
}
@Override
public void onIOException(IOException e, Object state) {
}
@Override
public void onFileNotFoundException(FileNotFoundException e,
Object state) {
}
@Override
public void onMalformedURLException(MalformedURLException e,
Object state) {
}
@Override
public void onFacebookError(FacebookError e, Object state) {
}
});
}
/**
* Get Group Posts by making request to Facebook Graph API
* */
@SuppressWarnings("deprecation")
public void getGPosts() {
mAsyncRunner.request("203153109726651/feed", new RequestListener() {
@Override
public void onComplete(String response, Object state) {
Log.d("GET POSTS", response);
String json = response;
try {
// Facebook Profile JSON data
JSONObject obj = new JSONObject(json);
JSONArray finalObj = obj.getJSONArray("data");
for (int i = 0; i < finalObj.length(); i++) {
final String message = finalObj.getJSONObject(i)
.getString("message");
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_MESSAGE, message);
// adding HashList to ArrayList
messages.add(map);
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(),
"Name: " + message, Toast.LENGTH_LONG)
.show();
}
});
}
} catch (JSONException e) {
e.printStackTrace();
}
}
@Override
public void onIOException(IOException e, Object state) {
}
@Override
public void onFileNotFoundException(FileNotFoundException e,
Object state) {
}
@Override
public void onMalformedURLException(MalformedURLException e,
Object state) {
}
@Override
public void onFacebookError(FacebookError e, Object state) {
}
});
ListAdapter adapter = new SimpleAdapter(FBAppActivity.this, messages,
R.layout.list_item,
new String[] { TAG_MESSAGE }, new int[] {
R.id.name });
//FBAppActivity.this.setListAdapter(adapter);
}
/**
* Function to post to facebook wall
* */
@SuppressWarnings("deprecation")
public void postToWall() {
// post on user's wall.
facebook.dialog(this, "feed", new DialogListener() {
@Override
public void onFacebookError(FacebookError e) {
}
@Override
public void onError(DialogError e) {
}
@Override
public void onComplete(Bundle values) {
}
@Override
public void onCancel() {
}
});
}
/**
* Function to show Access Tokens
* */
@SuppressWarnings("deprecation")
public void showAccessTokens() {
String access_token = facebook.getAccessToken();
Toast.makeText(getApplicationContext(),
"Access Token: " + access_token, Toast.LENGTH_LONG).show();
}
/**
* Function to Logout user from Facebook
* */
@SuppressWarnings("deprecation")
public void logoutFromFacebook() {
mAsyncRunner.logout(this, new RequestListener() {
@Override
public void onComplete(String response, Object state) {
Log.d("Logout from Facebook", response);
if (Boolean.parseBoolean(response) == true) {
runOnUiThread(new Runnable() {
@Override
public void run() {
// make Login button visible
btnFbLogin.setVisibility(View.VISIBLE);
// making all remaining buttons invisible
btnFbGetProfile.setVisibility(View.INVISIBLE);
btnPostToWall.setVisibility(View.INVISIBLE);
btnShowAccessTokens.setVisibility(View.INVISIBLE);
btnFbLogout.setVisibility(View.INVISIBLE);
btnGetPost.setVisibility(View.INVISIBLE);
}
});
}
}
@Override
public void onIOException(IOException e, Object state) {
}
@Override
public void onFileNotFoundException(FileNotFoundException e,
Object state) {
}
@Override
public void onMalformedURLException(MalformedURLException e,
Object state) {
}
@Override
public void onFacebookError(FacebookError e, Object state) {
}
});
}
/*
* @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the
* menu; this adds items to the action bar if it is present.
* getMenuInflater().inflate(R.menu.fbapp, menu); return true; }
*/
}
ボタンをクリックすると、ListViewが開きますが、データがありませんEmpty set。
Contacts_View.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ListView
android:id="@android:id/list"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<TextView android:id="@android:id/empty"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Empty set"
/>
</LinearLayout>
ここで言いたいのは、両方の機能が同じだということです。getGPosts()は で呼び出され、FBAppActivityはcreateAdapter()で呼び出されMessagesActivityます。getGPosts()動作しますが、createAdapter()動作しません。なぜこれが起こっているのかを理解するのを手伝ってください。
基本的に、Facebook グループから投稿をインポートしようとしています。私Toast objectはgetGPosts()[FBAppActivityクラスにあります]関数から正常に動作しています。この関数getGPosts()は、ボタンのクリック時に呼び出されます。 を使用してデータを取得していることを確認しましたToast object。今、私はデータをに移入したいListView. 私にはできないことです。さまざまな方法を試しましたが、どれもうまくいきませんでした。