Java 在android应用程序中使用facebook登录

我正在尝试将facebook与我的android应用程序集成。我已经实现了“developers.facebook.com”提供的代码，但是我得到了一个错误“java.lang.NoClassDefFoundError:android.support.v4.content.LocalBroadcastManager”。我已经尝试了所有可能的解决方案，但没有一个有效。我也用facebook sdk的android-support-v4.jar替换了android-support-v4.jar，但仍然得到相同的错误。代码是-

package com.example.facebooklogin;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.widget.TextView;
import com.facebook.*;
import com.facebook.model.*;

public class MainActivity extends Activity {

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    // start Facebook Login
     Session.openActiveSession(this, true, new Session.StatusCallback() {

      // callback when session changes state
      @Override
      public void call(Session session, SessionState state, Exception exception) {
        if (session.isOpened()) {

          // make request to the /me API
          Request.newMeRequest(session, new Request.GraphUserCallback() {

            // callback after Graph API response with user object
            @Override
            public void onCompleted(GraphUser user, Response response) {
              if (user != null) {
                TextView welcome = (TextView) findViewById(R.id.welcome);
                welcome.setText("Hello " + user.getName() + "!");
              }
            }
          }).executeAsync();
        }
      }
    });
  }
 @Override
  public void onActivityResult(int requestCode, int resultCode, Intent data) {
      super.onActivityResult(requestCode, resultCode, data);
      Session.getActiveSession().onActivityResult(this, requestCode, resultCode, data);
  }

} 

日志：

05-23 03:10:53.172: W/dalvikvm(1578): VFY: unable to find class referenced in signature (Landroid/support/v4/app/Fragment;)
05-23 03:10:53.172: W/dalvikvm(1578): VFY: unable to find class referenced in signature (Landroid/support/v4/app/Fragment;)
05-23 03:10:53.182: I/dalvikvm(1578): Could not find method android.support.v4.content.LocalBroadcastManager.getInstance, referenced from method com.facebook.Session.postActiveSessionAction
05-23 03:10:53.182: W/dalvikvm(1578): VFY: unable to resolve static method 216: Landroid/support/v4/content/LocalBroadcastManager;.getInstance (Landroid/content/Context;)Landroid/support/v4/content/LocalBroadcastManager;
05-23 03:10:53.182: D/dalvikvm(1578): VFY: replacing opcode 0x71 at 0x0009
05-23 03:10:53.492: D/AndroidRuntime(1578): Shutting down VM
05-23 03:10:53.492: W/dalvikvm(1578): threadid=1: thread exiting with uncaught exception (group=0xb3a63b90)
05-23 03:10:53.542: E/AndroidRuntime(1578): FATAL EXCEPTION: main
05-23 03:10:53.542: E/AndroidRuntime(1578): Process: com.example.facebooklogin, PID: 1578
05-23 03:10:53.542: E/AndroidRuntime(1578): java.lang.NoClassDefFoundError: android.support.v4.content.LocalBroadcastManager
05-23 03:10:53.542: E/AndroidRuntime(1578):     at com.facebook.Session.postActiveSessionAction(Session.java:1327)
05-23 03:10:53.542: E/AndroidRuntime(1578):     at com.facebook.Session.setActiveSession(Session.java:790)
05-23 03:10:53.542: E/AndroidRuntime(1578):     at com.facebook.Session.openActiveSession(Session.java:890)
05-23 03:10:53.542: E/AndroidRuntime(1578):     at com.facebook.Session.openActiveSession(Session.java:830)
05-23 03:10:53.542: E/AndroidRuntime(1578):     at com.example.facebooklogin.MainActivity.onCreate(MainActivity.java:23)
05-23 03:10:53.542: E/AndroidRuntime(1578):     at android.app.Activity.performCreate(Activity.java:5243)
05-23 03:10:53.542: E/AndroidRuntime(1578):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
05-23 03:10:53.542: E/AndroidRuntime(1578):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2140)
05-23 03:10:53.542: E/AndroidRuntime(1578):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2226)
05-23 03:10:53.542: E/AndroidRuntime(1578):     at android.app.ActivityThread.access$700(ActivityThread.java:135)
05-23 03:10:53.542: E/AndroidRuntime(1578):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1397)
05-23 03:10:53.542: E/AndroidRuntime(1578):     at android.os.Handler.dispatchMessage(Handler.java:102)
05-23 03:10:53.542: E/AndroidRuntime(1578):     at android.os.Looper.loop(Looper.java:137)
05-23 03:10:53.542: E/AndroidRuntime(1578):     at android.app.ActivityThread.main(ActivityThread.java:4998)
05-23 03:10:53.542: E/AndroidRuntime(1578):     at java.lang.reflect.Method.invokeNative(Native Method)
05-23 03:10:53.542: E/AndroidRuntime(1578):     at java.lang.reflect.Method.invoke(Method.java:515)
05-23 03:10:53.542: E/AndroidRuntime(1578):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777)
05-23 03:10:53.542: E/AndroidRuntime(1578):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:593)
05-23 03:10:53.542: E/AndroidRuntime(1578):     at dalvik.system.NativeStart.main(Native Method)

---

是否已为所需库标记复选框，如

然后再检查

---

将lib>中的android-support-v4.jar替换为facebook sdk中的android-support-v4.jar

public class LoginScreen  extends FragmentActivity implements OnClickListener
{


    FragmentTransaction transaction;

    @Override
     protected void onCreate(Bundle savedInstanceState) 
     {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.login_screen);



        MainFragment mainFrag=new MainFragment();
        FragmentManager manager=getSupportFragmentManager();//create an instance of fragment manager
        transaction=manager.beginTransaction();
        transaction.add(R.id.MyFrameLayout,mainFrag, "userlogin");
        transaction.commit();



    }


}

//主类的xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"

   >





  <FrameLayout
      android:layout_below="@+id/icon"
        android:id="@+id/MyFrameLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" 
        android:layout_marginTop="5dp">

    </FrameLayout>





</RelativeLayout>

//主片段的xml

<LinearLayout 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">

    <com.facebook.widget.LoginButton
        android:id="@+id/authButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"

        />

</LinearLayout>

@Macrosoft Dev-R u谈论Android私有库和Android依赖项的顺序和java构建路径的导出选项卡。@Macrosoft Dev是的，我有。@Macrosoft Dev-facebook sdk的版本重要吗？将

lib>

中的

Android-support-v4.jar替换为
facebook sdk
Anushka中的
，如果需要，可以发送完整的源代码@pratik谢谢你，但我已经找到了解决办法。我的问题现在解决了。没事，anushka，不用担心，v b应该联系吗？anushka，没有收到你的回复亲爱的？？？
<LinearLayout 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">

    <com.facebook.widget.LoginButton
        android:id="@+id/authButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"

        />

</LinearLayout>