如何获得通过Facebook登录成功后的用户信息
我尝试这样做：当isSessionValid getDetails直接别的facebook.authorize然后在onActivityResult getDetails
I tried this: when isSessionValid getDetails directly else facebook.authorize and then getDetails in onActivityResult
public class MainActivity extends Activity {
Facebook facebook = new Facebook("xxxxxxxxxxxxxxxx");
AsyncFacebookRunner mAsyncRunner = new AsyncFacebookRunner(facebook);
private SharedPreferences mPrefs;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
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);
}
if (expires != 0) {
facebook.setAccessExpires(expires);
}
if (!facebook.isSessionValid()) {
facebook.authorize(this, new String[] {}, new DialogListener() {
@Override
public void onComplete(Bundle values) {
SharedPreferences.Editor editor = mPrefs.edit();
editor.putString("access_token", facebook.getAccessToken());
editor.putLong("access_expires",
facebook.getAccessExpires());
editor.commit();
}
@Override
public void onFacebookError(FacebookError error) {
}
@Override
public void onError(DialogError e) {
}
@Override
public void onCancel() {
}
});
}else{
try {
JSONObject json = Util.parseJson(facebook.request("me"));
String facebookID = json.getString("id");
String firstName = json.getString("first_name");
String lastName = json.getString("last_name");
String email = json.getString("email");
String gender = json.getString("gender");
} catch (Exception e) {
}
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
facebook.authorizeCallback(requestCode, resultCode, data);
try {
JSONObject json = Util.parseJson(facebook.request("me"));
String facebookID = json.getString("id");
String firstName = json.getString("first_name");
String lastName = json.getString("last_name");
String email = json.getString("email");
String gender = json.getString("gender");
} catch (Exception e) {
}
}
public void onResume() {
super.onResume();
facebook.extendAccessTokenIfNeeded(this, null);
}
}
这正常工作时，我的Facebook应用程序安装在我的系统。但是，如果没有安装，我收到了Web视图进入Facebook的凭据，并在logcat中显示的login-成功，但没有getDetails块的调用。
This works fine when I have facebook app installed on my system. But If not installed i get a Web View to enter facebook credentials and in logcat shows login-success, but none of the getDetails block is called.
下面的 initFacebook（） 功能，通过您可以登录并执行您功能，我在这里获取用户的好友信息。
Here in initFacebook() function through you can login and perform you functionality, here i am fetching user's friends information.
private void initFacebook()
{
try
{
if (APP_ID == null)
{
Util.showAlert(this,"Warning","Facebook Applicaton ID must be "+ "specified before running this example: see Example.java");
}
mFacebook = new Facebook();
mAsyncRunner = new AsyncFacebookRunner(mFacebook);
mFacebook.authorize(FacebookList.this, APP_ID, new String[] {"email", "read_stream", "user_hometown", "user_location","friends_about_me", "friends_hometown", "friends_location","user_relationships", "friends_relationship_details","friends_birthday", "friends_education_history","friends_website" }, new DialogListener()
{
public void onComplete(Bundle values)
{
getHTTPConnection();
}
public void onFacebookError(FacebookError error)
{
Log.i("public void onFacebookError(FacebookError error)....","....");
}
public void onError(DialogError e)
{
Log.i("public void onError(DialogError e)....", "....");
CustomConfirmOkDialog dialog = new CustomConfirmOkDialog(FacebookList.this, R.style.CustomDialogTheme, Utils.FACEBOOK_CONNECTION_ERROR);
dialog.show();
}
public void onCancel()
{
Log.i("public void onCancel()....", "....");
}
});
SessionStore.restore(mFacebook, this);
SessionEvents.addAuthListener(new SampleAuthListener());
SessionEvents.addLogoutListener(new SampleLogoutListener());
}
catch (Exception e)
{
e.printStackTrace();
}
}
下面的 getHTTPConnection（） ，继续用于连接和发送领域，我们对用户的朋友要求为在这里我们可以看到，经过领域是字段= ID，名字，姓氏，位置，图片的朋友。在这里，您可以根据应用的需求改变这个领域。
Here in getHTTPConnection(), proceeding for connection and sending fields, that we require about user's friends as here we can see that passing fields are fields=id,first_name,last_name,location,picture of friends. here you can change this fields according to application's requirements.
private void getHTTPConnection()
{
try
{
mAccessToken = mFacebook.getAccessToken();
HttpClient httpclient = new DefaultHttpClient();
String result = null;
HttpGet httpget = new HttpGet("https://graph.facebook.com/me/friends?access_token="+ mAccessToken + "&fields=id,first_name,last_name,location,picture");
HttpResponse response;
response = httpclient.execute(httpget);
HttpEntity entity = response.getEntity();
if (entity != null)
{
result = EntityUtils.toString(entity);
parseJSON(result);
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
现在成功后，连接是 Facebook的，我们得到 JSON 的数据，并进一步分析它。
Now after successfully connecting with facebook , we are getting JSON data and further to parse it .
private void parseJSON(String data1) throws Exception,NullPointerException, JSONException
{
try
{
JSONObject jObj = new JSONObject(data1);
JSONArray jObjArr = jObj.optJSONArray("data");
int lon = jObjArr.length();
for (int i = 0; i < lon; i++)
{
JSONObject tmp = jObjArr.optJSONObject(i);
String temp_image = tmp.getString("picture"); String temp_fname = tmp.getString("first_name");
String temp_lname = tmp.getString("last_name");
String temp_loc = null;
JSONObject loc = tmp.getJSONObject("location");
temp_loc = loc.getString("name");
}
}
catch (Exception e)
{
Log.i("Exception1 is Here>> ", e.toString());
e.printStackTrace();
}
}
假定你已经添加了一个的Facebook 罐子到您的应用程序，并为继续这种code可以调用 initFacebook（） 到的onCreate（）您的活动
It is assumed that you have already added a facebook jar in to your application and for proceeding this code you can call initFacebook() in to onCreate() of your activity