Чтобы зарегистрировать пользователя на Facebook в приложении для Android, я пытаюсь использовать следующий код. После того, как пользователь выполнил вход в систему, все местоположения своих друзей должны были появиться.
К сожалению, этот код иногда вызывает ANR (как сообщается в консоли разработчика Google Play), и иногда он просто не работает. Если я удалю приложение в Facebook (аннулировать разрешения), диалоговое окно разрешений будет показано снова при следующем запуске приложения для Android. Но если приложение уже имеет разрешения, оно вызывает эти ANR или просто завершает работу без успеха.
Кажется, что части работают, а части ошибаются, не так ли? Является ли следующий код правильным способом входа в систему и получения данных?
package com.my.application;
import java.util.Arrays;
import java.util.List;
import org.json.JSONArray;
import org.json.JSONObject;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.preference.PreferenceManager;
import com.facebook.*;
import com.facebook.Session.OpenRequest;
import com.facebook.Session.StatusCallback;
public class FBLocations extends Activity {
private Session.StatusCallback fbStatusCallback = new Session.StatusCallback() {
@Override
public void call(Session session, SessionState state, Exception exception) { // callback for session state changes
if (state.isOpened()) {
Request.executeGraphPathRequestAsync(session, "me/friends/?access_token="+session.getAccessToken()+"&fields=id,name,location&limit=500", new Request.Callback() {
@Override
public void onCompleted(Response response) {
if (response != null) {
// do something with <response> now
}
}
});
}
}
};
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
try {
openActiveSession(this, true, fbStatusCallback, Arrays.asList("friends_location"));
}
catch (Exception e) {
e.printStackTrace();
}
}
private static Session openActiveSession(Activity activity, boolean allowLoginUI, StatusCallback callback, List<String> permissions) {
OpenRequest openRequest = new OpenRequest(activity).setPermissions(permissions).setLoginBehavior(SessionLoginBehavior.SSO_WITH_FALLBACK).setCallback(callback).setDefaultAudience(SessionDefaultAudience.FRIENDS);
Session session = new Session.Builder(activity).build();
if (SessionState.CREATED_TOKEN_LOADED.equals(session.getState()) || allowLoginUI) {
Session.setActiveSession(session);
session.openForRead(openRequest);
return session;
}
return null;
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
Session.getActiveSession().onActivityResult(this, requestCode, resultCode, data);
}
}
Я также добавил хэши ключей приложения в Facebook, как отладки, так и производства. Не было уверенности в том, что должно быть записано дополнение =.
Я не мог следовать официальному руководству Facebook, поскольку я не буду использовать кнопку входа в SDK и не буду использовать фрагменты в Android.
Изменить (7 января 2013 года):
После Hartok предлагается заменить session.isOpened() на state.isOpened() в методе обратного вызова call(), теперь все работает в 50% всех тестовых прогонов. Тем не менее, есть некоторые проблемы. В некоторых случаях все работает нормально, в некоторых других случаях (без меня что-то по-другому) в LogCat возникает ошибка:
01-07 01:55:29.882: W/System.err(30572): com.facebook.FacebookException: Log in attempt aborted.
at com.facebook.Session.close(Session.java:572)
at com.facebook.Session.setActiveSession(Session.java:755)
at my.app.package.FBImport.openActiveSession(FBImport.java:145) // this is: Session.setActiveSession(session);
at my.app.package.FBImport.access$5(FBImport.java:139)
at my.app.package.FBImport$4.run(FBImport.java:124)
Что вызывает эту ошибку? Проблема с клиентом или проблема с сервером? Кстати, приложение, похоже, замирает (ANR).
И если я попытаюсь подключиться дважды в последовательности, я вижу следующий вывод LogCat:
java.lang.IllegalStateException: Cannot execute task: the task is already running.
at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:550)
at android.os.AsyncTask.execute(AsyncTask.java:511)
at com.facebook.RequestAsyncTask.executeOnSettingsExecutor(RequestAsyncTask.java:186)
at com.facebook.Request.executeBatchAsync(Request.java:1094)
at com.facebook.Request.executeBatchAsync(Request.java:1073)
at com.facebook.Request.executeBatchAsync(Request.java:1055)
at com.facebook.Request.executeAsync(Request.java:852)
Почему? Почему задача все еще запущена?
Описание ANR (ANR keyDispatchingTimedOut):
DALVIK THREADS:
(mutexes: tll=0 tsl=0 tscl=0 ghl=0)
"main" prio=5 tid=1 NATIVE
| group="main" sCount=1 dsCount=0 obj=0x4184e9a0 self=0x40011010
| sysTid=19301 nice=0 sched=0/0 cgrp=apps handle=1074414556
| state=S schedstat=( 906984000 397085000 2526 ) utm=66 stm=24 core=0
#00 pc 00017ee4 /system/lib/libc.so (epoll_wait+12)
#01 pc 00014b09 /system/lib/libutils.so (android::Looper::pollInner(int)+96)
#02 pc 00014d71 /system/lib/libutils.so (android::Looper::pollOnce(int, int*, int*, void**)+104)
#03 pc 0005ed53 /system/lib/libandroid_runtime.so (android::NativeMessageQueue::pollOnce(_JNIEnv*, int)+22)
#04 pc 0001e290 /system/lib/libdvm.so (dvmPlatformInvoke+112)
#05 pc 0004d411 /system/lib/libdvm.so (dvmCallJNIMethod(unsigned int const*, JValue*, Method const*, Thread*)+396)
#06 pc 000276a0 /system/lib/libdvm.so
#07 pc 0002b57c /system/lib/libdvm.so (dvmInterpret(Thread*, Method const*, JValue*)+184)
#08 pc 0005ff07 /system/lib/libdvm.so (dvmInvokeMethod(Object*, Method const*, ArrayObject*, ArrayObject*, ClassObject*, bool)+374)
#09 pc 000677e1 /system/lib/libdvm.so
#10 pc 000276a0 /system/lib/libdvm.so
#11 pc 0002b57c /system/lib/libdvm.so (dvmInterpret(Thread*, Method const*, JValue*)+184)
#12 pc 0005fc31 /system/lib/libdvm.so (dvmCallMethodV(Thread*, Method const*, Object*, bool, JValue*, std::__va_list)+272)
#13 pc 000499fb /system/lib/libdvm.so
#14 pc 00046871 /system/lib/libandroid_runtime.so
#15 pc 00047533 /system/lib/libandroid_runtime.so (android::AndroidRuntime::start(char const*, char const*)+390)
#16 pc 00000db7 /system/bin/app_process
#17 pc 0001271f /system/lib/libc.so (__libc_init+38)
#18 pc 00000ae8 /system/bin/app_process
at android.os.MessageQueue.nativePollOnce(Native Method)
at android.os.MessageQueue.next(MessageQueue.java:125)
at android.os.Looper.loop(Looper.java:124)
at android.app.ActivityThread.main(ActivityThread.java:5039)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
at dalvik.system.NativeStart.main(Native Method)
"AsyncTask #2" prio=5 tid=17 WAIT
| group="main" sCount=1 dsCount=0 obj=0x4205f6d0 self=0x6742f940
| sysTid=19354 nice=10 sched=0/0 cgrp=apps/bg_non_interactive handle=1732251672
| state=S schedstat=( 82839000 103493000 646 ) utm=5 stm=3 core=0
at java.lang.Object.wait(Native Method)
- waiting on <0x4205f7f0> (a java.lang.VMThread) held by tid=17 (AsyncTask #2)
at java.lang.Thread.parkFor(Thread.java:1231)
at sun.misc.Unsafe.park(Unsafe.java:323)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:159)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2019)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:413)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1013)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1073)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
at java.lang.Thread.run(Thread.java:856)
"Binder_3" prio=5 tid=16 NATIVE
| group="main" sCount=1 dsCount=0 obj=0x41fed668 self=0x41838008
| sysTid=19330 nice=0 sched=0/0 cgrp=apps handle=1742766600
| state=S schedstat=( 1078000 818000 10 ) utm=0 stm=0 core=0
#00 pc 00016fe4 /system/lib/libc.so (__ioctl+8)
#01 pc 0002a97d /system/lib/libc.so (ioctl+16)
#02 pc 00016ba1 /system/lib/libbinder.so (android::IPCThreadState::talkWithDriver(bool)+132)
#03 pc 00017363 /system/lib/libbinder.so (android::IPCThreadState::joinThreadPool(bool)+154)
#04 pc 0001b15d /system/lib/libbinder.so
#05 pc 00011267 /system/lib/libutils.so (android::Thread::_threadLoop(void*)+114)
#06 pc 0004679f /system/lib/libandroid_runtime.so (android::AndroidRuntime::javaThreadShell(void*)+66)
#07 pc 00010dcd /system/lib/libutils.so
#08 pc 0000e3d8 /system/lib/libc.so (__thread_entry+72)
#09 pc 0000dac4 /system/lib/libc.so (pthread_create+160)
at dalvik.system.NativeStart.run(Native Method)
"pool-1-thread-5" prio=5 tid=15 WAIT
| group="main" sCount=1 dsCount=0 obj=0x420423d0 self=0x673d8ab8
| sysTid=19329 nice=0 sched=0/0 cgrp=apps handle=1732087560
| state=S schedstat=( 6292000 7083000 36 ) utm=0 stm=0 core=2
at java.lang.Object.wait(Native Method)
- waiting on <0x42042528> (a java.lang.VMThread) held by tid=15 (pool-1-thread-5)
at java.lang.Thread.parkFor(Thread.java:1231)
at sun.misc.Unsafe.park(Unsafe.java:323)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:159)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2019)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:413)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1013)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1073)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
at java.lang.Thread.run(Thread.java:856)
"pool-1-thread-4" prio=5 tid=14 WAIT
| group="main" sCount=1 dsCount=0 obj=0x42039040 self=0x673cb248
| sysTid=19328 nice=0 sched=0/0 cgrp=apps handle=1732032152
| state=S schedstat=( 8178000 7047000 32 ) utm=0 stm=0 core=3
at java.lang.Object.wait(Native Method)
- waiting on <0x42039160> (a java.lang.VMThread) held by tid=14 (pool-1-thread-4)
at java.lang.Thread.parkFor(Thread.java:1231)
at sun.misc.Unsafe.park(Unsafe.java:323)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:159)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2019)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:413)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1013)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1073)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
at java.lang.Thread.run(Thread.java:856)
"pool-1-thread-3" prio=5 tid=13 WAIT
| group="main" sCount=1 dsCount=0 obj=0x42027140 self=0x673c95f8
| sysTid=19327 nice=0 sched=0/0 cgrp=apps handle=1698808232
| state=S schedstat=( 10642000 19156000 34 ) utm=1 stm=0 core=1
at java.lang.Object.wait(Native Method)
- waiting on <0x42027260> (a java.lang.VMThread) held by tid=13 (pool-1-thread-3)
at java.lang.Thread.parkFor(Thread.java:1231)
at sun.misc.Unsafe.park(Unsafe.java:323)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:159)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2019)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:413)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1013)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1073)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
at java.lang.Thread.run(Thread.java:856)
"pool-1-thread-2" prio=5 tid=12 WAIT
| group="main" sCount=1 dsCount=0 obj=0x4201d958 self=0x672cd008
| sysTid=19326 nice=0 sched=0/0 cgrp=apps handle=1731988480
| state=S schedstat=( 17725000 16571000 59 ) utm=1 stm=0 core=3
at java.lang.Object.wait(Native Method)
- waiting on <0x4201da78> (a java.lang.VMThread) held by tid=12 (pool-1-thread-2)
at java.lang.Thread.parkFor(Thread.java:1231)
at sun.misc.Unsafe.park(Unsafe.java:323)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:159)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2019)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:413)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1013)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1073)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
at java.lang.Thread.run(Thread.java:856)
"pool-1-thread-1" prio=5 tid=11 WAIT
| group="main" sCount=1 dsCount=0 obj=0x420156c8 self=0x65dc8818
| sysTid=19325 nice=0 sched=0/0 cgrp=apps handle=1728232912
| state=S schedstat=( 11166000 9311000 77 ) utm=0 stm=1 core=2
at java.lang.Object.wait(Native Method)
- waiting on <0x42015810> (a java.lang.VMThread) held by tid=11 (pool-1-thread-1)
at java.lang.Thread.parkFor(Thread.java:1231)
at sun.misc.Unsafe.park(Unsafe.java:323)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:159)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2019)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:413)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1013)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1073)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
at java.lang.Thread.run(Thread.java:856)
"AsyncTask #1" prio=5 tid=10 WAIT
| group="main" sCount=1 dsCount=0 obj=0x41fb5990 self=0x63bd3008
| sysTid=19318 nice=10 sched=0/0 cgrp=apps/bg_non_interactive handle=1748684416
| state=S schedstat=( 24263000 18668000 33 ) utm=1 stm=1 core=1
at java.lang.Object.wait(Native Method)
- waiting on <0x41fd07d0> (a java.lang.VMThread) held by tid=10 (AsyncTask #1)
at java.lang.Thread.parkFor(Thread.java:1231)
at sun.misc.Unsafe.park(Unsafe.java:323)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:159)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2019)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:413)
at java.util.concurrent.ThreadPoolExecutor...