1.引入facebook 工程lib,在Manifest中声明com.facebook.LoginActivity,facebook_app_id
<activity
android:name="com.facebook.LoginActivity"
android:label="@string/app_name"
android:theme="@android:style/Theme.Translucent.NoTitleBar" /><meta-data
android:name="com.facebook.sdk.ApplicationId"
android:value="@string/facebook_app_id" />
2.调用方式:
1).初始化facebookLogin,设置回调
private FacebookLogin facebookLogin;
facebookLogin = new FacebookLogin(this);
facebookLogin.setLoginCallBack(new FacebookLogin.LoginCallBack()
{
@Override
public void onPreLogin()
{
showLoadingDlg();
} @Override
public void onLoginSuccess(GraphUser user)
{ dismissLoadingDlg();
Toast.makeText(getApplicationContext(), user.getName()+"========", Toast.LENGTH_LONG).show();
} @Override
public void onError()
{
dismissLoadingDlg();
}
});
2).重写onActivityResult方法
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
facebookLogin.onActivityResult(requestCode, resultCode, data);
}
3).调用facebookLogin.login()方法,登录成功后会调用onLoginSuccess方法返回用户信息user
facebookLogin.login();
3.工具类FacebookLogin.java代码:
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import com.facebook.Request;
import com.facebook.Response;
import com.facebook.Session;
import com.facebook.SessionState;
import com.facebook.Request.GraphUserCallback;
import com.facebook.model.GraphUser;public class FacebookLogin
{
private Activity activity; public FacebookLogin(Activity activity)
{
this.activity = activity;
} private LoginCallBack loginCallBack; public void onActivityResult(int requestCode, int resultCode, Intent data)
{
onActivityResult(activity, requestCode, resultCode, data);
} /**
* Login
*/
public void login()
{
login(activity);
} /**
* onActivityResult
* @param context
* @param requestCode
* @param resultCode
* @param data
*/
private void onActivityResult(Context context, int requestCode, int resultCode, Intent data)
{
if (context instanceof Activity)
{
Session.getActiveSession().onActivityResult((Activity) context, requestCode, resultCode, data);
}
} /**
* Login
* @param context
*/
private void login(Context context)
{
Session.openActiveSession((Activity) context, true, new Session.StatusCallback()
{
// callback when session changes state
@Override
public void call(Session session, SessionState state, Exception exception)
{
if (session.isOpened())
{
getUserInfo(session);
}
} });
if (loginCallBack != null)
{
loginCallBack.onPreLogin();
}
} private void getUserInfo(final Session session)
{
Request request = Request.newMeRequest(session, new GraphUserCallback()
{ @Override
public void onCompleted(GraphUser user, Response response)
{
try
{
if (loginCallBack != null)
{
if (user != null)
{ loginCallBack.onLoginSuccess(user);
}
else
{
loginCallBack.onError();
}
}
}
catch (Exception e)
{
e.printStackTrace();
loginCallBack.onError();
} } });
request.executeAsync();
} /**
* Logout from Facebook
*/
public void logout()
{
Session session = Session.getActiveSession();
if (session != null)
{
if (!session.isClosed())
{
session.closeAndClearTokenInformation();
}
}
else
{
session = new Session(activity);
Session.setActiveSession(session);
session.closeAndClearTokenInformation();
} } public void setLoginCallBack(LoginCallBack loginCallBack)
{
this.loginCallBack = loginCallBack;
} public interface LoginCallBack
{
void onPreLogin(); void onLoginSuccess(GraphUser user); void onError();
}
}