Android 用のソーシャル ネットワーク統合アプリを作成しています。すでに Facebook、Twitter、Linkedin に投稿できます。ここで、Flickr をアプリに統合する必要があります。ちらつきを Android アプリに統合する方法の適切な例を見つけることができませんでした。
私のソースコードは以下のとおりです。
これはFlickrViewerActivityクラスです:
public class FlickrViewerActivity extends Activity {
public static final String CALLBACK_SCHEME = "flickrj-android-sample-oauth"; //$NON-NLS-1$
public static final String PREFS_NAME = "flickrj-android-sample-pref"; //$NON-NLS-1$
public static final String KEY_OAUTH_TOKEN = "flickrj-android-oauthToken"; //$NON-NLS-1$
public static final String KEY_TOKEN_SECRET = "flickrj-android-tokenSecret"; //$NON-NLS-1$
public static final String KEY_USER_NAME = "flickrj-android-userName"; //$NON-NLS-1$
public static final String KEY_USER_ID = "flickrj-android-userId"; //$NON-NLS-1$
private static final Logger logger = LoggerFactory.getLogger(FlickrjAndroidSampleActivity.class);
private ListView listView;
private TextView textUserTitle;
private TextView textUserName;
private TextView textUserId;
private ImageView userIcon;
private ImageButton refreshButton;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.textUserTitle = (TextView) this.findViewById(R.id.profilePageTitle);
this.textUserName = (TextView) this.findViewById(R.id.userScreenName);
this.textUserId = (TextView) this.findViewById(R.id.userId);
this.userIcon = (ImageView) this.findViewById(R.id.userImage);
this.listView = (ListView) this.findViewById(R.id.imageList);
this.refreshButton = (ImageButton) this.findViewById(R.id.btnRefreshUserProfile);
this.refreshButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
load(getOAuthToken());
}
});
OAuth oauth = getOAuthToken();
if (oauth == null || oauth.getUser() == null) {
OAuthTask task = new OAuthTask(this);
task.execute();
} else {
load(oauth);
}
}
private void load(OAuth oauth) {
if (oauth != null) {
new LoadUserTask(this, userIcon).execute(oauth);
new LoadPhotostreamTask(this, listView).execute(oauth);
}
}
@Override
public void onDestroy() {
listView.setAdapter(null);
super.onDestroy();
}
/* (non-Javadoc)
* @see android.app.Activity#onNewIntent(android.content.Intent)
*/
@Override
protected void onNewIntent(Intent intent) {
//this is very important, otherwise you would get a null Scheme in the onResume later on.
setIntent(intent);
}
public void setUser(User user) {
textUserTitle.setText(user.getUsername());
textUserName.setText(user.getRealName());
textUserId.setText(user.getId());
}
public ImageView getUserIconImageView() {
return this.userIcon;
}
@Override
public void onResume() {
super.onResume();
Intent intent = getIntent();
String scheme = intent.getScheme();
OAuth savedToken = getOAuthToken();
if (CALLBACK_SCHEME.equals(scheme) && (savedToken == null || savedToken.getUser() == null)) {
Uri uri = intent.getData();
String query = uri.getQuery();
logger.debug("Returned Query: {}", query); //$NON-NLS-1$
String[] data = query.split("&"); //$NON-NLS-1$
if (data != null && data.length == 2) {
String oauthToken = data[0].substring(data[0].indexOf("=") + 1); //$NON-NLS-1$
String oauthVerifier = data[1]
.substring(data[1].indexOf("=") + 1); //$NON-NLS-1$
logger.debug("OAuth Token: {}; OAuth Verifier: {}", oauthToken, oauthVerifier); //$NON-NLS-1$
OAuth oauth = getOAuthToken();
if (oauth != null && oauth.getToken() != null && oauth.getToken().getOauthTokenSecret() != null) {
GetOAuthTokenTask task = new GetOAuthTokenTask(this);
task.execute(oauthToken, oauth.getToken().getOauthTokenSecret(), oauthVerifier);
}
}
}
}
public void onOAuthDone(OAuth result) {
if (result == null) {
Toast.makeText(this,
"Authorization failed", //$NON-NLS-1$
Toast.LENGTH_LONG).show();
} else {
User user = result.getUser();
OAuthToken token = result.getToken();
if (user == null || user.getId() == null || token == null
|| token.getOauthToken() == null
|| token.getOauthTokenSecret() == null) {
Toast.makeText(this,
"Authorization failed", //$NON-NLS-1$
Toast.LENGTH_LONG).show();
return;
}
String message = String.format(Locale.US, "Authorization Succeed: user=%s, userId=%s, oauthToken=%s, tokenSecret=%s", //$NON-NLS-1$
user.getUsername(), user.getId(), token.getOauthToken(), token.getOauthTokenSecret());
Toast.makeText(this,
message,
Toast.LENGTH_LONG).show();
saveOAuthToken(user.getUsername(), user.getId(), token.getOauthToken(), token.getOauthTokenSecret());
load(result);
}
}
public OAuth getOAuthToken() {
//Restore preferences
SharedPreferences settings = getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
String oauthTokenString = settings.getString(KEY_OAUTH_TOKEN, null);
String tokenSecret = settings.getString(KEY_TOKEN_SECRET, null);
if (oauthTokenString == null && tokenSecret == null) {
logger.warn("No oauth token retrieved"); //$NON-NLS-1$
return null;
}
OAuth oauth = new OAuth();
String userName = settings.getString(KEY_USER_NAME, null);
String userId = settings.getString(KEY_USER_ID, null);
if (userId != null) {
User user = new User();
user.setUsername(userName);
user.setId(userId);
oauth.setUser(user);
}
OAuthToken oauthToken = new OAuthToken();
oauth.setToken(oauthToken);
oauthToken.setOauthToken(oauthTokenString);
oauthToken.setOauthTokenSecret(tokenSecret);
logger.debug("Retrieved token from preference store: oauth token={}, and token secret={}", oauthTokenString, tokenSecret); //$NON-NLS-1$
return oauth;
}
public void saveOAuthToken(String userName, String userId, String token, String tokenSecret) {
logger.debug("Saving userName=%s, userId=%s, oauth token={}, and token secret={}", new String[]{userName, userId, token, tokenSecret}); //$NON-NLS-1$
SharedPreferences sp = getSharedPreferences(PREFS_NAME,
Context.MODE_PRIVATE);
Editor editor = sp.edit();
editor.putString(KEY_OAUTH_TOKEN, token);
editor.putString(KEY_TOKEN_SECRET, tokenSecret);
editor.putString(KEY_USER_NAME, userName);
editor.putString(KEY_USER_ID, userId);
editor.commit();
}
}
OAuthTaskクラス:
public class OAuthTask extends AsyncTask<Void, Integer, String> {
private static final Logger logger = LoggerFactory
.getLogger(OAuthTask.class);
private static final Uri OAUTH_CALLBACK_URI = Uri.parse(FlickrjAndroidSampleActivity.CALLBACK_SCHEME
+ "://oauth"); //$NON-NLS-1$
/**
* The context.
*/
private Context mContext;
/**
* The progress dialog before going to the browser.
*/
private ProgressDialog mProgressDialog;
/**
* Constructor.
*
* @param context
*/
public OAuthTask(Context context) {
super();
this.mContext = context;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
mProgressDialog = ProgressDialog.show(mContext,
"", "Generating the authorization request..."); //$NON-NLS-1$ //$NON-NLS-2$
mProgressDialog.setCanceledOnTouchOutside(true);
mProgressDialog.setCancelable(true);
mProgressDialog.setOnCancelListener(new OnCancelListener() {
@Override
public void onCancel(DialogInterface dlg) {
OAuthTask.this.cancel(true);
}
});
}
/*
* (non-Javadoc)
*
* @see android.os.AsyncTask#doInBackground(Params[])
*/
@Override
protected String doInBackground(Void... params) {
try {
Flickr f = FlickrHelper.getInstance().getFlickr();
OAuthToken oauthToken = f.getOAuthInterface().getRequestToken(
OAUTH_CALLBACK_URI.toString());
saveTokenSecrent(oauthToken.getOauthTokenSecret());
URL oauthUrl = f.getOAuthInterface().buildAuthenticationUrl(
Permission.READ, oauthToken);
return oauthUrl.toString();
} catch (Exception e) {
logger.error("Error to oauth", e); //$NON-NLS-1$
return "error:" + e.getMessage(); //$NON-NLS-1$
}
}
/**
* Saves the oauth token secrent.
*
* @param tokenSecret
*/
private void saveTokenSecrent(String tokenSecret) {
logger.debug("request token: " + tokenSecret); //$NON-NLS-1$
FlickrjAndroidSampleActivity act = (FlickrjAndroidSampleActivity) mContext;
act.saveOAuthToken(null, null, null, tokenSecret);
logger.debug("oauth token secret saved: {}", tokenSecret); //$NON-NLS-1$
}
@Override
protected void onPostExecute(String result) {
if (mProgressDialog != null) {
mProgressDialog.dismiss();
}
if (result != null && !result.startsWith("error") ) { //$NON-NLS-1$
mContext.startActivity(new Intent(Intent.ACTION_VIEW, Uri
.parse(result)));
} else {
Toast.makeText(mContext, result, Toast.LENGTH_LONG).show();
}
}
}
マニフェストファイル:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.flickr.test"
android:versionCode="1"
android:versionName="1.0"
android:installLocation="preferExternal">
<uses-sdk
android:minSdkVersion="9"
android:targetSdkVersion="15" />
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".FlickrViewerActivity"
android:label="@string/title_activity_flickr_viewer" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="flickrj-android-sample-oauth" />
</intent-filter>
</activity>
</application>
</manifest>
Main.xmlファイル:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:padding="@dimen/padding_medium"
android:text="@string/hello_world"
tools:context=".FlickrViewerActivity" />
</RelativeLayout>
私は次のチュートリアルに従っていました：
http://code.google.com/p/flickrj-android/wiki/HowToGuide4Android
コードが実行されていません。Flickr と統合された Android のソリューションまたはサンプル プロジェクト ソース コードを探しています。