我正在为 Android 创建一个社交网络集成应用程序。我已经可以在 Facebook、Twitter 和 Linkedin 上发帖了。现在我必须将 Flickr 集成到应用程序中。我找不到如何在 Android 应用程序中集成闪烁的适当示例。
我的源代码如下：
这是FlickrViewerActivity类：
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类：
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();
}
}
}
清单文件：
<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文件：
<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>
我正在关注以下教程：
http://code.google.com/p/flickrj-android/wiki/HowToGuide4Android
代码未执行，我正在寻找具有 Flickr 集成的 Android 解决方案或示例项目源代码。