我正在尝试在Android模拟器上运行我的项目，该项目没有错误，添加了对Facebook SDK的引用。但是，当我运行应用程序时，它会显示“onerror”消息..
请任何人都可以执行我的代码并告诉我问题（或）给我解决方案
MainActivity.java
package com.example.simplelogin1;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.ProgressDialog;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import com.facebook.android.AsyncFacebookRunner;
import com.facebook.android.DialogError;
import com.facebook.android.Facebook;
import com.facebook.android.Util;
import com.facebook.android.AsyncFacebookRunner.RequestListener;
import com.facebook.android.Facebook.DialogListener;
import com.facebook.android.FacebookError;
public class MainActivity extends Activity implements OnClickListener
{
ImageView button,userImage;
TextView textName;
Button btnShowAccessTokens;
ListView listv;
String FILENAME = "AndroidSSO_data";
String imageURL = "";
String name = "";
String userName = "";
String gender = "";
String _error;
String access_token;
private AsyncFacebookRunner mAsyncRunner=null;
private SharedPreferences mPrefs;
Facebook fb=null;
ArrayList<String> friends_list;
Boolean Connectiontimeout = false;
Bitmap profilePic;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
String APP_ID="650535718332424"; //****************************APP_ID************************************
fb=new Facebook(APP_ID);
mAsyncRunner = new AsyncFacebookRunner(fb);
friends_list = new ArrayList<String>();
btnShowAccessTokens = (Button) findViewById(R.id.btn_show_access_tokens);
button=(ImageView) findViewById(R.id.login);
listv=(ListView) findViewById(R.id.listView1);
userImage = (ImageView) findViewById(R.id.imageView1);
textName = (TextView) findViewById(R.id.textView1);
button.setOnClickListener(this);
updateButtonImage();
//***************************Access Token Button*****************************************
btnShowAccessTokens.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
showAccessTokens();
}
});
}
public void showAccessTokens()
{
String access_token = fb.getAccessToken();
Toast.makeText(getApplicationContext(),"Access Token: " + access_token, Toast.LENGTH_LONG).show();
}
//***********************************************************************************
//*****************************Login and Logout Image Button*****************************
private void updateButtonImage()
{
if(fb.isSessionValid())
{
button.setImageResource(R.drawable.logout_button);
}else
{
button.setImageResource(R.drawable.login_button);
}
}
//***************************************************************************************
//**************************Login Onclick Method*****************************************
@Override
public void onClick(View v)
{
if(fb.isSessionValid())
{
//*****************Logout********************
try{
fb.logout(getApplicationContext());
updateButtonImage();
userImage.setVisibility(View.INVISIBLE);
textName.setVisibility(View.INVISIBLE);
btnShowAccessTokens.setVisibility(View.INVISIBLE);
listv.setVisibility(View.INVISIBLE);
}catch (MalformedURLException e)
{
e.printStackTrace();
}catch (IOException e)
{
e.printStackTrace();
}
//************************************************************
}else
{
//**********************Login**********************************
mPrefs = getPreferences(MODE_PRIVATE);
String access_token = mPrefs.getString("access_token", null);
long expires = mPrefs.getLong("access_expires", 0);
if (access_token != null)
{
fb.setAccessToken(access_token);
// Making show access tokens button visible
//btnShowAccessTokens.setVisibility(View.VISIBLE);
//listv.setVisibility(View.VISIBLE);
Log.d("FB Sessions", "" + fb.isSessionValid());
}
if (expires != 0)
{
fb.setAccessExpires(expires);
}
{
fb.authorize(this,new String[] {"email","publish_stream"} , new DialogListener()
{
@Override
public void onFacebookError(FacebookError e)
{
Toast.makeText(MainActivity.this, "fbError", Toast.LENGTH_SHORT).show();
}
@Override
public void onError(DialogError e)
{
Toast.makeText(MainActivity.this, "onError", Toast.LENGTH_SHORT).show();
}
@Override
public void onComplete(Bundle values)
{
updateButtonImage();
// Function to handle complete event Edit Preferences and update facebook acess_token
SharedPreferences.Editor editor = mPrefs.edit();
editor.putString("access_token",fb.getAccessToken());
editor.putLong("access_expires",fb.getAccessExpires());
editor.commit();
//getting user profile
try {
JSONObject me = new JSONObject(fb.request("me"));
new getFacebookData().execute();
} catch (MalformedURLException e)
{
e.printStackTrace();
} catch (JSONException e)
{
e.printStackTrace();
} catch (IOException e)
{
e.printStackTrace();
}
//getting users Friend list
mAsyncRunner.request("me/friends", new FriendsRequestListener());
Toast.makeText(getApplicationContext(), "Success ", Toast.LENGTH_LONG).show();
userImage.setVisibility(View.VISIBLE);
textName.setVisibility(View.VISIBLE);
btnShowAccessTokens.setVisibility(View.VISIBLE);
listv.setVisibility(View.VISIBLE);
}
@Override
public void onCancel()
{
Toast.makeText(MainActivity.this, "onCancel", Toast.LENGTH_SHORT).show();
}
});
}
}
}
//***************************************onActivityResult********************************************
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
fb.authorizeCallback(requestCode, resultCode, data);
}
//***********************************getting users Friend list Function*******************************
private class FriendsRequestListener implements RequestListener
{
String friendData;
//Method runs when request is complete
public void onComplete(String response, Object state)
{
Log.v("", "FriendListRequestONComplete");
//Create a copy of the response so i can be read in the run() method.
friendData = response;
Log.v("friendData--", ""+friendData);
//Create method to run on UI thread
MainActivity.this.runOnUiThread(new Runnable()
{
public void run()
{
try
{
//Parse JSON Data
JSONObject json;
json = Util.parseJson(friendData);
//Get the JSONArry from our response JSONObject
JSONArray friendArray = json.getJSONArray("data");
Log.v("friendArray--", ""+friendArray);
for(int i = 0; i< friendArray.length(); i++)
{
JSONObject frnd_obj = friendArray.getJSONObject(i);
friends_list.add(frnd_obj.getString("name")+"~~~"+frnd_obj.getString("id"));
}
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getBaseContext(), android.R.layout.simple_list_item_1,android.R.id.text1, friends_list);
listv.setAdapter(adapter);
} catch (JSONException e)
{
e.printStackTrace();
} catch (FacebookError e)
{
e.printStackTrace();
}
}
});
}
@Override
public void onIOException(IOException e, Object state)
{
}
@Override
public void onFileNotFoundException(FileNotFoundException e,Object state)
{
}
@Override
public void onMalformedURLException(MalformedURLException e,Object state)
{
}
@Override
public void onFacebookError(FacebookError e, Object state)
{
}
}
//**********************************************************************************************
//**************Async class for getting facebook data in background thread**********************
public class getFacebookData extends AsyncTask<String, Void, String>
{
ProgressDialog pd = null;
@Override
protected void onPreExecute(){
pd = ProgressDialog.show(MainActivity.this, "Please wait","Loading please wait..", true);
pd.setCancelable(true);
}
@Override
protected String doInBackground(String... params){
fbUserProfile();
return null;
}
@Override
protected void onPostExecute(String result){
pd.dismiss();
if (Connectiontimeout != true)
{
textName.setText(name);
userImage.setImageBitmap(profilePic);
} else {
Toast.makeText(MainActivity.this, "Connection Time out",Toast.LENGTH_SHORT).show();
}
}
}
//**********************************************************************************************************
//**********************getting user facebook data from facebook server****************************************
public void fbUserProfile()
{
try{
access_token = mPrefs.getString("access_token", null);
JSONObject jsonObj = null;
JSONObject jsonObjData = null;
JSONObject jsonObjUrl = null;
HttpParams httpParameters = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParameters, 50000);
HttpConnectionParams.setSoTimeout(httpParameters, 50000);
HttpClient client = new DefaultHttpClient(httpParameters);
String requestURL = "https://graph.facebook.com/me?fields=picture,id,name&access_token="+ access_token;
Log.i("Request URL:", "---" + requestURL);
HttpGet request = new HttpGet(requestURL);
HttpResponse response = client.execute(request);
BufferedReader rd = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
String webServiceInfo = "";
while ((webServiceInfo = rd.readLine()) != null)
{
Log.i("Service Response:", "---" + webServiceInfo);
jsonObj = new JSONObject(webServiceInfo);
jsonObjData = jsonObj.getJSONObject("picture");
jsonObjUrl = jsonObjData.getJSONObject("data");
name = jsonObj.getString("name");
userName = jsonObj.getString("username");
gender = jsonObj.getString("gender");
imageURL = jsonObjUrl.getString("url");
profilePic = BitmapFactory.decodeStream((InputStream) new URL(imageURL).getContent());
}
} catch (Exception e)
{
Connectiontimeout = true;
}
}
//***********************************************************************************************************
}
activity_main.xml中
<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"
android:orientation="vertical" >
<ImageView
android:id="@+id/login"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/login_button"/>
<Button
android:id="@+id/btn_show_access_tokens"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:text="Token"
android:visibility="invisible" />
<ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="@+id/btn_show_access_tokens"
android:visibility="invisible">
</ListView>
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_toRightOf="@+id/login"
android:src="@drawable/ic_launcher"
android:visibility="invisible" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/listView1"
android:layout_alignParentTop="true"
android:layout_toLeftOf="@+id/btn_show_access_tokens"
android:layout_toRightOf="@+id/imageView1"
android:text="Name"
android:visibility="invisible"/>
</RelativeLayout>
manifest.file
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.simplelogin1"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.MANAGE_ACCOUNTS" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.simplelogin1.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
在我的drawable文件夹中：
login_button需要
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<!-- When selected -->
<item android:drawable="@drawable/login"
android:state_selected="true" />
<!-- When not selected-->
<item android:drawable="@drawable/login_down" />
</selector>
logout_button
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<!-- When selected -->
<item android:drawable="@drawable/logout"
android:state_selected="true" />
<!-- When not selected-->
<item android:drawable="@drawable/logout_down" />
</selector>
我的logcat：
12-26 15:07:01.189: D/Facebook-WebView(8330): Webview loading URL: https://m.facebook.com/dialog/oauth?display=touch&client_id=650535718332424&scope=email%2Cpublish_stream&type=user_agent&redirect_uri=fbconnect%3A%2F%2Fsuccess
12-26 15:07:01.309: D/Facebook-authorize(8330): Login failed: com.facebook.android.DialogError: The connection to the server was unsuccessful.
12-26 15:07:01.329: D/Facebook-WebView(8330): Webview loading URL: https://m.facebook.com/dialog/oauth?display=touch&client_id=650535718332424&scope=email%2Cpublish_stream&type=user_agent&redirect_uri=fbconnect%3A%2F%2Fsuccess
请有人可以帮助我......