有时（不是经常）我的Android应用程序在首次使用Facebook登录（Facebook SDK版本3.5）登录到Facebook后崩溃。
我得到例外：
java.lang.RuntimeException: Unable to resume activity {my.app.package/com.facebook.LoginActivity}: java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=64206, result=0, data=null} to activity {my.app.package/com.facebook.LoginActivity}: java.lang.NullPointerException
有两个不同的根例外：
有时用：
java.lang.NullPointerException at com.facebook.AuthorizationClient.startOrContinueAuth(AuthorizationClient.java:135)
有时候：
Caused by: java.lang.NullPointerException at com.facebook.AuthorizationClient.logAuthorizationMethodComplete(AuthorizationClient.java:519)
在大多数情况下，我的应用程序运行正常。
任何可能导致此问题的想法？
编辑：
我的facebook sdk conf in manifest：
<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/applicationId" />
活动代码：
public class MainActivity extends FragmentActivity {
....
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initSession(savedInstanceState);
...
}
private void initSession(Bundle savedInstanceState) {
Settings.addLoggingBehavior(LoggingBehavior.INCLUDE_ACCESS_TOKENS);
Session session = Session.getActiveSession();
if (session == null) {
if (savedInstanceState != null) {
session = Session.restoreSession(this, null, statusCallback, savedInstanceState);
}
if (session == null) {
session = new Session(this);
}
Session.setActiveSession(session);
if (session.getState().equals(SessionState.CREATED_TOKEN_LOADED)) {
session.openForRead(new Session.OpenRequest(this).setCallback(statusCallback));
}
}
}
@Override
public void onStart() {
super.onStart();
Session session = Session.getActiveSession();
if (session != null) {
session.addCallback(statusCallback);
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
Session session = Session.getActiveSession();
if (session != null) {
session.onActivityResult(this, requestCode, resultCode, data);
}
}
@Override
public void onStop() {
super.onStop();
Session session = Session.getActiveSession();
if (session != null) {
session.removeCallback(statusCallback);
}
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
Session session = Session.getActiveSession();
Session.saveSession(session, outState);
}
...
}
我也在以前版本的Facebook SDK中遇到此错误。我有最新的Fb android客户端。有什么帮助吗？
答案 0 :(得分：4)
Facebook昨天刚刚发布了他们Android SDK的v3.5.1，解决了你的问题。他们的Change Log并未提供有关错误的详细信息，但人们一直在报告此错误，他们确实说过它将在以后的版本(source)中修复。但无论如何，看看v3.5和v3.5.1之间的差异，他们似乎在135和519行附近有固定的代码。查看Change Log完整列表。可能一个好主意永远不会从Facebook升级到重要版本，直到他们发布他们的第一个补丁。
答案 1 :(得分：0)
我今天也遇到了同样的问题。似乎Facebook SDK 3.5可能与旧的Facebook客户端（如Facebook 2.1）不兼容。我将Facebook客户端更新到最新版本，然后就可以了。
09-13 17:50:43.592 11372.11372 Bundle W Key com.facebook.platform.protocol.PROTOCOL_VERSION expected String but value was a java.lang.Integer. The default
value <null> was returned.
09-13 17:50:43.602 11372.11372 Bundle W Attempt to cast generated internal exception:
09-13 17:50:43.602 11372.11372 Bundle W java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String
09-13 17:50:43.602 11372.11372 Bundle W at android.os.Bundle.getString(Bundle.java:1085)
09-13 17:50:43.602 11372.11372 Bundle W at android.content.Intent.getStringExtra(Intent.java:4826)
09-13 17:50:43.602 11372.11372 Bundle W at com.facebook.AuthorizationClient$KatanaLoginDialogAuthHandler.tryAuthorize(AuthorizationClient.java:821)
09-13 17:50:43.602 11372.11372 Bundle W at com.facebook.AuthorizationClient.tryCurrentHandler(AuthorizationClient.java:272)
09-13 17:50:43.602 11372.11372 Bundle W at com.facebook.AuthorizationClient.tryNextHandler(AuthorizationClient.java:238)
09-13 17:50:43.602 11372.11372 Bundle W at com.facebook.AuthorizationClient.authorize(AuthorizationClient.java:161)
09-13 17:50:43.602 11372.11372 Bundle W at com.facebook.AuthorizationClient.startOrContinueAuth(AuthorizationClient.java:142)
09-13 17:50:43.602 11372.11372 Bundle W at com.facebook.LoginActivity.onResume(LoginActivity.java:117)
09-13 17:50:43.602 11372.11372 Bundle W at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1282)
09-13 17:50:43.602 11372.11372 Bundle W at android.app.Activity.performResume(Activity.java:5287)
09-13 17:50:43.602 11372.11372 Bundle W at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3211)
09-13 17:50:43.602 11372.11372 Bundle W at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3266)
09-13 17:50:43.602 11372.11372 Bundle W at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2579)
09-13 17:50:43.602 11372.11372 Bundle W at android.app.ActivityThread.access$600(ActivityThread.java:162)
09-13 17:50:43.602 11372.11372 Bundle W at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1413)
09-13 17:50:43.602 11372.11372 Bundle W at android.os.Handler.dispatchMessage(Handler.java:99)
09-13 17:50:43.602 11372.11372 Bundle W at android.os.Looper.loop(Looper.java:158)
09-13 17:50:43.602 11372.11372 Bundle W at android.app.ActivityThread.main(ActivityThread.java:5789)
09-13 17:50:43.602 11372.11372 Bundle W at java.lang.reflect.Method.invokeNative(Native Method)
09-13 17:50:43.602 11372.11372 Bundle W at java.lang.reflect.Method.invoke(Method.java:525)
09-13 17:50:43.602 11372.11372 Bundle W at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1027)
09-13 17:50:43.602 11372.11372 Bundle W at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:843)
09-13 17:50:43.602 11372.11372 Bundle W at dalvik.system.NativeStart.main(Native Method)
09-13 17:50:43.803 11372.11372 AndroidRuntime E FATAL EXCEPTION: main
09-13 17:50:43.803 11372.11372 AndroidRuntime E java.lang.RuntimeException: Unable to resume activity {com.mycomp.myapp/com.facebook.LoginActivity}: java.lang.NullPointe
rException
09-13 17:50:43.803 11372.11372 AndroidRuntime E at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3228)
09-13 17:50:43.803 11372.11372 AndroidRuntime E at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3266)
09-13 17:50:43.803 11372.11372 AndroidRuntime E at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2579)
09-13 17:50:43.803 11372.11372 AndroidRuntime E at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:4258)
09-13 17:50:43.803 11372.11372 AndroidRuntime E at android.app.ActivityThread.access$700(ActivityThread.java:162)
09-13 17:50:43.803 11372.11372 AndroidRuntime E at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1419)
09-13 17:50:43.803 11372.11372 AndroidRuntime E at android.os.Handler.dispatchMessage(Handler.java:99)
09-13 17:50:43.803 11372.11372 AndroidRuntime E at android.os.Looper.loop(Looper.java:158)
09-13 17:50:43.803 11372.11372 AndroidRuntime E at android.app.ActivityThread.main(ActivityThread.java:5789)
09-13 17:50:43.803 11372.11372 AndroidRuntime E at java.lang.reflect.Method.invokeNative(Native Method)
09-13 17:50:43.803 11372.11372 AndroidRuntime E at java.lang.reflect.Method.invoke(Method.java:525)
09-13 17:50:43.803 11372.11372 AndroidRuntime E at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1027)
09-13 17:50:43.803 11372.11372 AndroidRuntime E at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:843)
09-13 17:50:43.803 11372.11372 AndroidRuntime E at dalvik.system.NativeStart.main(Native Method)
09-13 17:50:43.803 11372.11372 AndroidRuntime E Caused by: java.lang.NullPointerException
09-13 17:50:43.803 11372.11372 AndroidRuntime E at com.facebook.AuthorizationClient.startOrContinueAuth(AuthorizationClient.java:135)
09-13 17:50:43.803 11372.11372 AndroidRuntime E at com.facebook.LoginActivity.onResume(LoginActivity.java:117)
09-13 17:50:43.803 11372.11372 AndroidRuntime E at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1282)
09-13 17:50:43.803 11372.11372 AndroidRuntime E at android.app.Activity.performResume(Activity.java:5287)
09-13 17:50:43.803 11372.11372 AndroidRuntime E at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3211)
09-13 17:50:43.803 11372.11372 AndroidRuntime E ... 13 more
答案 2 :(得分：0)
最近，我有同样的问题，但是，我将facebook sdk更新为https://github.com/facebook/facebook-android-sdk的3.5.2版本，并且任何有关loggining的问题都已解决。