我想在facebook上以我的应用程序的方式分享文本/图像。我应该如何继续进行操作。经过大量的Google搜索后，我发现了大量的示例应用，但由于最新的FB SDK已被弃用，因此很难找到这些API使用新SDK的方式。请帮我解决这个问题。
private void publishFeedDialog() {
Bundle params = new Bundle();
params.putString("name", "Facebook SDK for Android");
params.putString("caption", "Build great social apps and get more installs.");
params.putString("description", "The Facebook SDK for Android makes it easier and faster to develop Facebook integrated Android apps.");
params.putString("link", "https://developers.facebook.com/android");
params.putString("picture", "https://raw.github.com/fbsamples/ios-3.x- howtos/master/Images/iossdk_logo.png");
WebDialog feedDialog = (
new WebDialog.FeedDialogBuilder(getApplicationContext(),
Session.getActiveSession(),
params))
.setOnCompleteListener(new OnCompleteListener() {
@Override
public void onComplete(Bundle values,
FacebookException error) {
if (error == null) {
// When the story is posted, echo the success
// and the post Id.
final String postId = values.getString("post_id");
if (postId != null) {
Toast.makeText(getApplicationContext(),
"Posted story, id: "+postId,
Toast.LENGTH_SHORT).show();
} else {
// User clicked the Cancel button
Toast.makeText(getApplicationContext(),
"Publish cancelled",
Toast.LENGTH_SHORT).show();
}
} else if (error instanceof FacebookOperationCanceledException) {
// User clicked the "x" button
Toast.makeText(getApplicationContext(),
"Publish cancelled",
Toast.LENGTH_SHORT).show();
} else {
// Generic, ex: network error
Toast.makeText(getApplicationContext(),
"Error posting story",
Toast.LENGTH_SHORT).show();
}
}
})
.build();
feedDialog.show();
}
这是我获得的fb API 3.5 doc＆amp; amp;我已经尝试过，但是通过说会话为空来崩溃应用程序。
答案 0 :(得分：0)
此处您的会话为空，因为您尚未启动它。 您必须在登录后开始会话。
您可以使用
来实现这一目标Session.openActiveSession(this, true, new Session.StatusCallback() {
// callback when session changes state
});
有关更多信息，请尝试浏览http://developers.facebook.com/docs/android/scrumptious/authenticate/中的教程。这些真的很有帮助。
以下是我实施的方法 -
这个类用来做facebook的初始内容
<强> LoginFacebookClass
/**
* for integrating facebook in your app..
* Firstly import FacebookSDK lib project and add in your project as lib project.
* then
* create an instance of this class
* and, then call the facebook login method by passing reference of your activity and true, if you want to fetch data and, false if you want to share data on faceboko
* Please do whatever you want in the interface callback methods
* implemented by this class
*
*
* Note: Please write a line exactly in your activity's on activity result as
* -- Session.getActiveSession().onActivityResult(this, requestCode, resultCode, data);
* here, 'Session' is Class of Facebook.
* 'this' is reference of your activity
*/
public class FacebookLoginClass implements FB_Callback
{
Context context;
FBImPlmentation fbImpl;
String mImageURLString = "", mPhotoTypeString = "";
// private FBBean userDataBean;
/**
* constructor for FacebookLoginClass
* @param con : context of activity
* @param string
* @param mImageURLString2
*/
public FacebookLoginClass(Context con)
{
this.context = con;
fbImpl = FBImPlmentation.getInstance(context, this);
}
public FacebookLoginClass(Context con, String imageURLString, String photoType)
{
this.context = con;
fbImpl = FBImPlmentation.getInstance(context, this);
mImageURLString = imageURLString;
mPhotoTypeString = photoType;
}
/**
* method for initiating facebook Login
* @param isDataFetch : true for fetching user data, false for sharing on wall
*/
public void facebookLogin(boolean isDataFetch)
{
fbImpl.CheckSession(isDataFetch);
}
/**
* method for facebookLogout
*/
public void facebookLogout()
{
fbImpl.fbLogout();
}
@Override
public void onLogin(Session s)
{
fbImpl.getDataFromFB(s);
}
@Override
public void onLoginForShareData()
{
Log.e("facebook.", "True in..........");
Bundle postParams = new Bundle();
postParams.putString("name", "");
postParams.putString("caption", "");
postParams.putString("description", " Android, share your pics and videos");
if (mPhotoTypeString.equalsIgnoreCase("photo"))
{
postParams.putString("picture", mImageURLString);
}
else
{
postParams.putString("link", "");
}
fbImpl.publishFeedDialog(postParams);
}
@Override
public void onAuthFailiure()
{
}
@Override
public void onUserData(FBBean fbUserDataBean)
{
try
{
if (BejoelUtility.isNetworkAvailable(context))
{
String imageURLString = "http://graph.facebook.com/" + fbUserDataBean.getUserID() + "/picture?type=large";
new FacebookTwitterLoginAsyncTask(context, fbUserDataBean.getFirstNAme(), fbUserDataBean.getLastName(),
fbUserDataBean.getMailId(), fbUserDataBean.getUserBday(), fbUserDataBean.getUserSex(), "", "", imageURLString,
fbUserDataBean.getAccessToken(), "facebook").execute();
}
else
{
BejoelUtility.showMsgDialog(context, context.getString(R.string.app_name), context.getString(R.string.no_internet));
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
@Override
public void onPost(boolean postStatus)
{
// TODO Auto-generated method stub
}
@Override
public void onFriendRequest(boolean shareAppStatus)
{
// TODO Auto-generated method stub
}
@Override
public void onLogout(boolean status)
{
// TODO Auto-generated method stub
}
}
此课程与Facebook互动
public class FBImPlmentation
{
public static List<String> READ_PERMISSIONS = Arrays.asList("email");
public List<String> WRITE_PERMISSIONS = Arrays.asList("publish_actions");
private static FBImPlmentation fbImpl;
private FB_Callback mInterface;
private static Activity activity;
boolean isDataFetch=false;
private String mAccessTokenString = "";
/**
* constructor for facebookImplementation
* @param con :context of activity via FacebookLogin Class
* @param mInterface : refrence of class implementing FB_Callback interface..as in our case,
* it is refrence of FacebookLogin Class
* @return : instance of FBImplementation
*/
public static FBImPlmentation getInstance(Context con, FB_Callback mInterface)
{
activity = (Activity) con;
if (fbImpl == null)
fbImpl = new FBImPlmentation();
fbImpl.mInterface = mInterface;
return fbImpl;
}
/**
* method to be called for facebook Logout
*/
public void fbLogout()
{
if (Session.getActiveSession() != null)
{
Session.getActiveSession().closeAndClearTokenInformation();
}
Session.setActiveSession(null);
mInterface.onLogout(true);
}
/**
* method for checking session.
* if session is not open, then open a new session.
* If session is already open then..just call the fbcallback onlogin method
* @param isDataFetch2
*/
public void CheckSession(boolean isDataFetch2)
{
fbImpl.isDataFetch= isDataFetch2;
Session s = Session.getActiveSession();
if (s != null && s.isOpened())
{
if(isDataFetch)
mInterface.onLogin(s);
else
mInterface.onLoginForShareData();
mAccessTokenString = s.getAccessToken();
}
else
{
Session.openActiveSession(activity, true, mFBCallback);
}
}
// Session.NewPermissionsRequest newPermissionsRequest = new Session.NewPermissionsRequest(activity, permissions);
Session.StatusCallback mFBCallback = new Session.StatusCallback()
{
// call method is always called on session state change
@Override
public void call(Session session, SessionState state, Exception exception)
{
if (session.isOpened())
{
List<String> permissions = session.getPermissions();
if (!isSubsetOf(READ_PERMISSIONS, permissions))
{
Session.NewPermissionsRequest newPermissionsRequest = new Session.NewPermissionsRequest(activity, READ_PERMISSIONS);
session.requestNewReadPermissions(newPermissionsRequest);
return;
}
else if(isDataFetch)
{
mInterface.onLogin(session);
}
else
{
mInterface.onLoginForShareData();
}
}
}
};
/**
* method for fetching the user data
* @param session : it takes the refrence of active session
*/
public void getDataFromFB(Session session)
{
Request.executeMeRequestAsync(session, new Request.GraphUserCallback()
{
// callback after Graph API response with user object
@Override
public void onCompleted(GraphUser user, Response response)
{
if (user != null)
{
// code to retrieve user's data and pass to signup fragment
FBBean fbUserDataBean = new FBBean();
if (mAccessTokenString != null)
fbUserDataBean.setAccessToken(mAccessTokenString);
else
{
fbUserDataBean.setAccessToken("");
}
if (user.getUsername() != null && !(user.getUsername().equals(null)))
fbUserDataBean.setUserName(user.getUsername());
else
{
fbUserDataBean.setUserName("");
}
if (user.getFirstName() != null && !(user.getFirstName().equals(null)))
fbUserDataBean.setFirstNAme(user.getFirstName());
else
{
fbUserDataBean.setFirstNAme("");
}
if (user.getLastName() != null && !(user.getLastName().equals(null)))
fbUserDataBean.setLastName(user.getLastName());
else
{
fbUserDataBean.setLastName("");
}
if (user.getBirthday() != null && !(user.getBirthday().equals(null)))
fbUserDataBean.setUserBday(user.getBirthday());
else
{
fbUserDataBean.setUserBday("");
}
if (user.asMap().get("gender") != null)
{
fbUserDataBean.setUserSex(user.asMap().get("gender").toString());
}
else
{
fbUserDataBean.setUserSex("");
}
if (user.getProperty("email") != null && !(user.getProperty("email").equals(null)))
fbUserDataBean.setMailId(user.getProperty("email").toString());
else
{
fbUserDataBean.setMailId("");
}
if (user.getId() != null && !(user.getId().equals(null)))
fbUserDataBean.setUserID(user.getId());
else
{
fbUserDataBean.setUserID("");
}
// String[] sportsArray = FacebookUtils.getSportsArray(user.getInnerJSONObject());
// if (sportsArray != null && !(sportsArray.equals(null)))
// fbUserDataBean.setSportsname(sportsArray);
mInterface.onUserData(fbUserDataBean);
}
}
});
}
private boolean isSubsetOf(Collection<String> subset, Collection<String> superset)
{
for (String string : subset)
{
if (!superset.contains(string))
{
return false;
}
}
return true;
}
/**
* method for publishing posts
*/
public void publishFeedDialog(Bundle postParams)
{
Session s = Session.getActiveSession();
List<String> permissions = s.getPermissions();
if (!isSubsetOf(WRITE_PERMISSIONS, permissions))
{
Session.NewPermissionsRequest newPermissionsRequest = new Session.NewPermissionsRequest(activity,
WRITE_PERMISSIONS);
s.requestNewPublishPermissions(newPermissionsRequest);
return;
}
// Bundle postParams = new Bundle();
// postParams.putString("name", "Facebook SDK for Android");
// postParams.putString("caption", "Build great social apps and get more installs.");
// postParams.putString("description", "Video by Lata manadjahgkfdjhaskjd akhgfkjashfkjash");
// postParams.putString("link", "");
// postParams.putString("picture", "");
WebDialog feedDialog = (new WebDialog.FeedDialogBuilder(activity, Session.getActiveSession(), postParams))
.setOnCompleteListener(new OnCompleteListener()
{
@Override
public void onComplete(Bundle values, FacebookException error)
{
if (error == null)
{
// When the story is posted, echo the success
// and the post Id.
final String postId = values.getString("post_id");
if (postId != null)
{
mInterface.onPost(true);
}
else
{
// User clicked the Cancel button
mInterface.onPost(false);
}
}
else
if (error instanceof FacebookOperationCanceledException)
{
// User clicked the "x" button
// Toast.makeText(MainActivity.this.getApplicationContext(), "Publish cancelled",
// Toast.LENGTH_SHORT).show();
mInterface.onPost(false);
}
else
{
// Generic, ex: network error
// Toast.makeText(MainActivity.this.getApplicationContext(), "Error posting story",
// Toast.LENGTH_SHORT).show();
mInterface.onAuthFailiure();
}
}
}).build();
feedDialog.show();
}
}