33 ソーシャル
Javaでソーシャル開発の手段をまとめる
アプリの登録 https://dev.twitter.com/apps
Twitter4J http://twitter4j.org/ja/index.html
Twitterとアクセスする流れ
１．アプリ側がTwitterにCONSUME_KEYとCONSUME_SECRETを渡す
２．ユーザ側がTwitterにログインし、PINコードを取得
３．アプリ側がPINコードでTwitterから取得する情報を処理
サンプル
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.auth.AccessToken;
import twitter4j.auth.RequestToken;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.widget.Toast;
public class MainActivity extends ListActivity {
private static final String TAG = MainActivity.class.getSimpleName();
private static final int TWITTER_AUTH = 0;
private static final String CONSUME_KEY = "YourKey";
private static final String CONSUME_SECRET = "YourSecret";
private Twitter twitter = null;
private RequestToken requestToken = null;
private String authUrl = null;
private ProgressDialog dialog = null;
private Handler handler = new Handler();
// OKの場合
private Runnable normal = new Runnable() {
public void run() {
if(dialog != null){
dialog.dismiss();
}
// 認証処理を別Activityに任せ
Intent intent = new Intent(MainActivity.this, XXXActivity.class);
intent.putExtra("authurl", authUrl);
startActivityForResult(intent, TWITTER_AUTH);
}
};
// OKの場合
private Runnable update = new Runnable() {
public void run() {
// do something
if(dialog != null){
dialog.dismiss();
}
}
};
// NGの場合
private Runnable error = new Runnable() {
public void run() {
if(dialog != null){
dialog.dismiss();
}
Toast.makeText(MainActivity.this, R.string.auth_error, Toast.LENGTH_SHORT).show();
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.dialog = new ProgressDialog(this);
this.dialog.setMessage(getString(R.string.msg_wait));
this.dialog.setIndeterminate(true);
this.dialog.show();
new Thread() {
@Override
public void run() {
try {
// 認証を行う（一回目）
twitter = new TwitterFactory().getInstance();
twitter.setOAuthConsumer(CONSUME_KEY, CONSUME_SECRET);
requestToken = twitter.getOAuthRequestToken();
authUrl = requestToken.getAuthorizationURL();
handler.post(normal);
} catch (TwitterException e) {
Log.d(TAG, "Exception", e);
handler.post(error);
}
};
}.start();
};
@Override
protected void onStop() {
super.onStop();
if(this.twitter != null){
this.twitter.shutdown();
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
// 別Activityが結果を返す
if(requestCode == TWITTER_AUTH){
if(resultCode == 0){
final String pincode = data.getExtras().getString("pincode");
this.dialog = new ProgressDialog(this);
this.dialog.setMessage(getString(R.string.msg_wait));
this.dialog.setIndeterminate(true);
this.dialog.show();
new Thread() {
@Override
public void run() {
try {
AccessToken accessToken = twitter.getOAuthAccessToken(requestToken, pincode);
twitter.shutdown();
twitter = null;
// 認証を行う（二回目）
twitter = new TwitterFactory().getInstance();
twitter.setOAuthConsumer(CONSUME_KEY, CONSUME_SECRET);
twitter.setOAuthAccessToken(accessToken);
} catch (TwitterException e) {
Log.d(TAG, "Exception", e);
handler.post(error);
}
handler.post(update);
};
}.start();
}
}
}
}
アプリの登録 http://www.facebook.com/developers/
Facebook SDK https://github.com/facebook/facebook-android-sdk
Facebookとアクセスする流れ
１．アプリ側がFacebookにAPP_IDを渡す
２．ユーザ側がFacebookにログイン
３．アプリ側がFacebookから取得する情報を処理
サンプル
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.MalformedURLException;
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;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends ListActivity {
private static final String TAG = MainActivity.class.getSimpleName();
private static final String APP_ID = "YourID";
private Facebook facebook = null;
private ProgressDialog dialog = null;
private Handler handler = new Handler();
// OKの場合
private Runnable normal = new Runnable() {
public void run() {
// do something
if(dialog != null){
dialog.dismiss();
}
}
};
// NGの場合
private Runnable error = new Runnable() {
public void run() {
if(dialog != null){
dialog.dismiss();
}
Toast.makeText(MainActivity.this, R.string.auth_error, Toast.LENGTH_SHORT).show();
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
if(this.facebook == null){
this.facebook = new Facebook(APP_ID);
}
// 権限の設定
String[] permissions = {"read_stream"};
if(!facebook.isSessionValid()){
this.facebook.authorize(this, permissions, new DialogListener() {
public void onComplete(Bundle values) {
dialog = new ProgressDialog(MainActivity.this);
dialog.setIndeterminate(true);
dialog.setMessage(getString(R.string.msg_wait));
dialog.show();
new AsyncFacebookRunner(facebook).request("me/home", new RequestListener() {
public void onComplete(String response, Object state) {
// JSONデータを解析
XXX xxx = XXXFactory.create(response);
if(xxx != null){
handler.post(normal);
}else{
handler.post(error);
}
}
public void onMalformedURLException(...) { }
public void onIOException(...) { }
public void onFileNotFoundException(...) { }
public void onFacebookError(...) { }
});
}
public void onFacebookError(FacebookError e) { }
public void onError(DialogError e) { }
public void onCancel() { }
});
}
};
@Override
protected void onStop() {
super.onStop();
if(facebook != null){
try {
facebook.logout(this);
} catch (MalformedURLException e) {
Log.d(TAG, "Exception", e);
} catch (IOException e) {
Log.d(TAG, "Exception", e);
}
}
}
}