小贝子编程

在Android应用程序中集成登录和facebook



作为一名初学者，我正在尝试在我的应用程序中实现facebook集成。我要运行该应用程序。然而，当儿子输入我的凭据并请求我的许可时，该应用程序崩溃了。我不知道怎么了。我在这里学习了一个教程：

这是我的主要活动代码：

package com.techfrk.facebooktesting;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
import facebook.android.DialogError;
import facebook.android.Facebook;
import facebook.android.Facebook.DialogListener;
import facebook.android.FacebookError;
public class MainActivity extends ActionBarActivity 
{
    private Facebook facebook;
    private static final String APP_ID = "758322840932665";
    private static final String[] PERMISSIONS = new String[] { "publish_stream","read_stream"};
    public static final String TOKEN = "access_token";
    public static final String EXPIRES = "expires_in";
    private static final String KEY = "facebook-credentials";
    Button bb;
    @Override
    protected void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        bb=(Button)findViewById(R.id.btnLoginNPublish);
        bb.setOnClickListener(new OnClickListener() 
        {
            @Override
            public void onClick(View v) 
            {
                // TODO Auto-generated method stub
                try
                {

                //loginToTwitter();
                 //MyTwitterLogin();
        /////////////// Facebook//////////////
                    facebook = new Facebook(APP_ID);
                    LoginToFacebook();
               //     postToWall("Posting from my Eclipse project!!!");
                  //  fetchFacebookFriends();
                    ///////////////////////
                }
                catch(Exception ex)
                {
                 Log.i("Exception:",ex.getMessage());
                }
            }
        });
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) 
    {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
    @Override
    public boolean onOptionsItemSelected(MenuItem item) 
    {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) 
        {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
    public boolean saveCredentials(Facebook facebook) 
    {
        Editor editor = getApplicationContext().getSharedPreferences(KEY,Context.MODE_PRIVATE).edit();
        editor.putString(TOKEN, facebook.getAccessToken());
        editor.putLong(EXPIRES, facebook.getAccessExpires());
        return editor.commit();
    }
    public boolean restoreCredentials(Facebook facebook) 
    {
        SharedPreferences sharedPreferences = getApplicationContext().getSharedPreferences(KEY, Context.MODE_PRIVATE);
        facebook.setAccessToken(sharedPreferences.getString(TOKEN, null));
        facebook.setAccessExpires(sharedPreferences.getLong(EXPIRES, 0));
        return facebook.isSessionValid();
    }
    public void LoginToFacebook() 
    {
        facebook.authorize(this, PERMISSIONS, Facebook.FORCE_DIALOG_AUTH,new LoginDialogListener());
    }
    public void postToWall(String msg) 
    {
        Log.d("Tests", "Testing graph API wall post");
         try 
         {
                String response = facebook.request("me");
                Bundle parameters = new Bundle();
                parameters.putString("message", msg);
                parameters.putString("description", "test test test");
                response = facebook.request("me/feed", parameters,"POST");
                Log.d("Tests", "got response: " + response);
                if (response == null || response.equals("") || response.equals("false")|| response.contains("error")) 
                {
                   Log.v("Error", response.toString());
                }
         } 
         catch(Exception e) 
         {
             e.printStackTrace();
         }
    }
    public void fetchFacebookFriends()
    {
         try {
                String response = facebook.request("me");
                response = facebook.request("me/friends");
                Log.d("Tests", "got response: " + response);
                if (response == null || response.equals("") || response.equals("false")|| response.contains("error")) 
                {
                   Log.v("Error", response.toString());
                }
                else
                {
                        JSONObject jsonObject = new JSONObject(response);
                        try 
                        {
                            JSONArray array = jsonObject.getJSONArray("data");
                            for (int i = 0; i < array.length(); i++) 
                            {
                                JSONObject object = (JSONObject) array.get(i);
                                Log.d( "id = "+object.get("id"),"Name = "+object.get("name"));
                            }
                        } 
                        catch (JSONException e) 
                        {
                            e.printStackTrace();
                        }
                }
         }
         catch(Exception ex1)
         {
         }
}
    public void fetchMyFacebookStatuses()
    {
         try {
                String response = facebook.request("me");
                response = facebook.request("me/statuses");
                Log.d("Tests", "got response: " + response);
                if (response == null || response.equals("") || response.equals("false")) 
                {
                   Log.v("Error", response.toString());
                }
                else
                {
                        JSONObject jsonObject = new JSONObject(response);
                        try 
                        {
                            JSONArray array = jsonObject.getJSONArray("data");
                            for (int i = 0; i < array.length(); i++) 
                            {
                                JSONObject object = (JSONObject) array.get(i);
                                Log.d( "Message id = "+object.get("id"),"Message = "+object.get("message"));
                            }
                        } 
                        catch (Exception e) 
                        {
                            Log.i("Error in Statuses:",e.getMessage());
                        }
                }
         }
         catch(Exception ex1)
         {
             Log.i("Error in Statuses:",ex1.getMessage());
         }
  }
    class LoginDialogListener implements DialogListener 
    {
        public void onComplete(Bundle values) 
        {
            saveCredentials(facebook);
            showToast( "Login Successfull in Facebook");
            //fetchFacebookFriends();
            //postToWall("Another post from Eclipse...");
             fetchMyFacebookStatuses();
            //fetchFriendsFacebookStatuses();    
        }
        @Override
        public void onFacebookError(FacebookError e) 
        {
            // TODO Auto-generated method stub
        }
        @Override
        public void onError(DialogError e) 
        {
            // TODO Auto-generated method stub
        }
        @Override
        public void onCancel() 
        {
            // TODO Auto-generated method stub
        }
    }
    private void showToast(String message) 
    {
           Toast.makeText(getApplicationContext(), message, Toast.LENGTH_SHORT).show();
    }
}

这是日志目录：

04-02 12:16:58.691: A/chromium(16016): [FATAL:jni_android.cc(269)] Check failed: false. Please include Java exception stack in crash report
04-02 12:16:58.691: E/chromium(16016): ### WebView Version 40 (1808730-arm) (code 423501)
04-02 12:16:58.691: A/libc(16016): Fatal signal 6 (SIGABRT), code -6 in tid 16016 (facebooktesting)

您可以使用SocialAuth这一简单方法示例低于

初始化

初始化SocialAuth适配器对象并创建一个Facebook按钮。单击按钮后，对适配器进行授权。

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
   adapter = new SocialAuthAdapter(new ResponseListener());
  facebook_button = (Button)findViewById(R.id.fb_btn);
  facebook_button.setBackgroundResource(R.drawable.facebook);
 facebook_button.setOnClickListener(new OnClickListener() 
 {
    public void onClick(View v) 
    {
        adapter.authorize(ProviderUI.this, Provider.FACEBOOK);
    }
});
}

在ResponseListener中接收身份验证响应，并启动调用以获得各种功能。参见以下示例：

更新状态

通过调用adapter.updateStatus（）共享您的状态，并在MessageListener中验证响应。你可以用任何语言在脸书墙上分享你的状态。

private final class ResponseListener implements DialogListener 
{
   public void onComplete(Bundle values) {
  adapter.updateStatus(edit.getText().toString(), new MessageListener());                   
}
}
// To get status of message after authentication
private final class MessageListener implements SocialAuthListener {
@Override
public void onExecute(Integer t) {
Integer status = t;
if (status.intValue() == 200 || status.intValue() == 201 ||status.intValue() == 204)
 Toast.makeText(CustomUI.this, "Message posted",Toast.LENGTH_LONG).show();
else
Toast.makeText(CustomUI.this, "Message not posted",Toast.LENGTH_LONG).show();
}
}

更新故事

通过调用adapter.updateStory（）共享故事，并在MessageListener中验证响应。您需要以下字段来共享故事：消息、标题、链接、imageurl。

private final class ResponseListener implements DialogListener 
{
public void onComplete(Bundle values) {
 adapter.updateStory(  "Hello SocialAuth Android" ,  "Google SDK for Android",
         "Build great social apps and get more installs.",
         "The Facebook SDK for Android makes it easier and faster to develop Facebook integrated 
                                         Android apps.",  "https://www.facebook.com",               
                                        "http://carbonfreepress.gr/images/facebook.png", new MessageListener());                
}
}
// To get status of message after authentication
private final class MessageListener implements SocialAuthListener {
@Override
public void onExecute(Integer t) {
Integer status = t;
if (status.intValue() == 200 || status.intValue() == 201 ||status.intValue() == 204)
 Toast.makeText(CustomUI.this, "Message posted",Toast.LENGTH_LONG).show();

获取配置文件

通过getUserprofileSync（）方法获取用户配置文件，并在profileDataListener中接收响应。你可以得到

Facebook的用户档案ID、名字、姓氏、电子邮件、性别、国家、语言、位置和档案图像URL。

 private final class ResponseListener implements DialogListener 
{
 public void onComplete(Bundle values) {
  adapter.getUserProfileAsync(new ProfileDataListener());                   
}
}
// To receive the profile response after authentication
private final class ProfileDataListener implements SocialAuthListener {
@Override
public void onExecute(Profile t) {
Log.d("Custom-UI", "Receiving Data");
Profile profileMap = t;
Log.d("Custom-UI",  "Validate ID         = " + profileMap.getValidatedId());
Log.d("Custom-UI",  "First Name          = " + profileMap.getFirstName());
Log.d("Custom-UI",  "Last Name           = " + profileMap.getLastName());
Log.d("Custom-UI",  "Email               = " + profileMap.getEmail());
Log.d("Custom-UI",  "Gender                   = " + profileMap.getGender());
 Log.d("Custom-UI",  "Country                  = " +              profileMap.getCountry());
 Log.d("Custom-UI",  "Language                 = " + profileMap.getLanguage());
Log.d("Custom-UI",  "Location                 = " + profileMap.getLocation());
Log.d("Custom-UI",  "Profile Image URL  = " + profileMap.getProfileImageURL());

获取联系人

通过getContactListAsync（）方法获取用户联系人，并在contactDataListener中接收响应。您可以获取Facebook的名字、姓氏和个人资料URL。

private final class ResponseListener implements DialogListener 
{
public void onComplete(Bundle values) {
  adapter.getContactListAsync(new ContactDataListener());                   
}
}
// To receive the contacts response after authentication
private final class ContactDataListener implements SocialAuthListener> {
@Override
public void onExecute(List t) {
Log.d("Custom-UI", "Receiving Data");
List contactsList = t;
if (contactsList != null && contactsList.size() > 0) {
for (Contact c : contactsList) {
Log.d("Custom-UI", "Contact ID = " + c.getId());
Log.d("Custom-UI", "First Name = " + c.getFirstName());
Log.d("Custom-UI", "Last Name = " + c.getLastName());
 }
 }

获取用户订阅源

通过getFeedListAsync（）方法获取用户提要，并在feedDataListener中接收响应。你可以得到

屏幕名称、消息、创建日期和发布提要的用户的名称。

private final class ResponseListener implements DialogListener 
{
public void onComplete(Bundle values) {
 adapter.getFeedsAsync(new FeedDataListener());             
}
}
 // To receive the feed response after authentication
 private final class FeedDataListener implements SocialAuthListener> {
 @Override
 public void onExecute(List t) {
 Log.d("Share-Bar", "Receiving Data");
 List feedList = t;
 if (feedList != null && feedList.size() > 0) {
 for (Feed f : feedList) {
 Log.d("Custom-UI ", "Feed ID = " + f.getId());
 Log.d("Custom-UI", "Screen Name = " + f.getScreenName());
 Log.d("Custom-UI", "Message = " + f.getMessage());
 Log.d("Custom-UI ", "Get From = " + f.getFrom());
 Log.d("Custom-UI ", "Created at = " + f.getCreatedAt());
 }
  }                                    
}

获取相册

通过getAlbumsAsync（）方法获取用户相册，并在albumDataListener中接收响应。你可以得到

相册名称、封面照片、照片数量、带名称和URL的图像阵列。

private final class ResponseListener implements DialogListener 
{
public void onComplete(Bundle values) {
 adapter.getAlbumsAsync(new AlbumDataListener());   
}
}
 // To receive the album response after authentication
 private final class AlbumDataListener implements SocialAuthListener> {
 @Override
 public void onExecute(List t) {
Log.d("Custom-UI", "Receiving Data");
List albumList = t;
if (albumList != null && albumList.size() > 0) {
// Get Photos inside Album
for (Album a : albumList) {
Log.d("Custom-UI", "Album ID = " + a.getId());
Log.d("Custom-UI", "Album Name = " + a.getName());
Log.d("Custom-UI", "Cover Photo = " + a.getCoverPhoto());
Log.d("Custom-UI", "Photos Count = " + a.getPhotosCount());
photosList = a.getPhotos();
if (photosList != null && photosList.size() > 0) {
for (Photo p : photosList) {
    Log.d("Custom-UI", "Photo ID = " + p.getId());
    Log.d("Custom-UI", "Name     = " + p.getTitle());
    Log.d("Custom-UI", "Thumb Image = " + p.getThumbImage());
    Log.d("Custom-UI", "Small Image = " + p.getSmallImage());
    Log.d("Custom-UI", "Medium Image = " + p.getMediumImage());
    Log.d("Custom-UI", "Large Image = " + p.getLargeImage());
   }}
  }}

上传图像

通过调用adapter.uploadimageAsync（）共享图像，并在UploadImageListener中验证响应。

 private final class ResponseListener implements DialogListener 
{
 public void onComplete(Bundle values) {
 adapter.uploadImageAsync("Landscape Images", "icon.png", bitmap, 0,new UploadImageListener());
 }
}
// To get status of image upload after authentication
private final class UploadImageListener implements SocialAuthListener {
@Override
public void onExecute(Integer t) {
Log.d("Custom-UI", "Uploading Data");
Integer status = t;
Log.d("Custom-UI", String.valueOf(status));
Toast.makeText(CustomUI.this, "Image Uploaded", Toast.LENGTH_SHORT).show();
}
}

最后

 <strong style="font-family: Georgia, 'Times New Roman', 'Bitstream Charter', Times, serif; font-size: 13px; line-height: 19px;">Conclusion</strong>

参考链接http://www.3pillarglobal.com/insights/part-1-using-socialauth-to-integrate-facebook-api-in-android

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