这是我第一次使用Android-Facebook SDK。我正在尝试发布位图，但我不断收到此消息：
Warning: Error: com.facebook.FacebookException: Failed to copy image.
我可以发布简单的链接，但不能发布带有照片的链接。
我应该如何解决这个问题？另外，我注意到的一件事是 StatusCallback.call() 没有被调用。
public abstract class FacebookReadyBaseActivity extends Activity {
private static final String TAG = "FacebookReadyBaseActivity";
private UiLifecycleHelper uiHelper;
protected PendingAction pendingAction = PendingAction.NONE;
private static final String PERMISSION = "publish_actions";
protected boolean canPresentShareDialogWithPhotos;
private boolean canPresentShareDialog;
private GraphUser user;
private GraphPlace place;
private List<GraphUser> tags;
protected Bitmap pendingBitmap;
protected enum PendingAction {
NONE, POST_PHOTO, POST_STATUS_UPDATE
}
private Session.StatusCallback callback = new Session.StatusCallback() {
@Override
public void call(Session session, SessionState state,
Exception exception) {
onSessionStateChange(session, state, exception);
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
uiHelper = new UiLifecycleHelper(this, callback);
uiHelper.onCreate(savedInstanceState);
canPresentShareDialog = FacebookDialog.canPresentShareDialog(this,
FacebookDialog.ShareDialogFeature.SHARE_DIALOG);
canPresentShareDialogWithPhotos = FacebookDialog.canPresentShareDialog(
this, FacebookDialog.ShareDialogFeature.PHOTOS);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
uiHelper.onActivityResult(requestCode, resultCode, data,
new FacebookDialog.Callback() {
@Override
public void onError(FacebookDialog.PendingCall pendingCall,
Exception error, Bundle data) {
Log.e(TAG, String.format("Error: %s", error.toString()));
}
@Override
public void onComplete(
FacebookDialog.PendingCall pendingCall, Bundle data) {
Log.i(TAG, "Success!");
}
});
}
@Override
protected void onResume() {
super.onResume();
uiHelper.onResume();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
uiHelper.onSaveInstanceState(outState);
}
@Override
public void onPause() {
super.onPause();
uiHelper.onPause();
}
@Override
public void onDestroy() {
super.onDestroy();
uiHelper.onDestroy();
}
protected UiLifecycleHelper getFacebookUiHelper() {
return uiHelper;
}
protected void performPublish(PendingAction action, boolean allowNoSession) {
Session session = Session.getActiveSession();
if (session != null) {
pendingAction = action;
if (hasPublishPermission()) {
// We can do the action right away.
handlePendingAction();
return;
} else if (session.isOpened()) {
// We need to get new permissions, then complete the action when
// we get called back.
session.requestNewPublishPermissions(new Session.NewPermissionsRequest(
this, PERMISSION));
return;
}
}
if (allowNoSession) {
pendingAction = action;
handlePendingAction();
}
}
private boolean hasPublishPermission() {
Session session = Session.getActiveSession();
return session != null
&& session.getPermissions().contains("publish_actions");
}
@SuppressWarnings("incomplete-switch")
private void handlePendingAction() {
PendingAction previouslyPendingAction = pendingAction;
// These actions may re-set pendingAction if they are still pending, but
// we assume they
// will succeed.
pendingAction = PendingAction.NONE;
switch (previouslyPendingAction) {
case POST_PHOTO:
postPhoto();
break;
case POST_STATUS_UPDATE:
postStatusUpdate();
break;
}
}
private void postPhoto() {
if (canPresentShareDialogWithPhotos) {
FacebookDialog shareDialog = createShareDialogBuilderForPhoto(
pendingBitmap).build();
uiHelper.trackPendingDialogCall(shareDialog.present());
} else if (hasPublishPermission()) {
Request request = Request.newUploadPhotoRequest(
Session.getActiveSession(), pendingBitmap,
new Request.Callback() {
@Override
public void onCompleted(Response response) {
InfoDialog.newInstance(
FacebookReadyBaseActivity.this, "Done",
"Photo share finished.", null).show();
}
});
request.executeAsync();
} else {
pendingAction = PendingAction.POST_PHOTO;
}
}
private void postStatusUpdate() {
if (canPresentShareDialog) {
FacebookDialog shareDialog = createShareDialogBuilderForLink()
.build();
uiHelper.trackPendingDialogCall(shareDialog.present());
} else if (user != null && hasPublishPermission()) {
// TODO fixme
final String message = "Status update finished.";
Request request = Request.newStatusUpdateRequest(
Session.getActiveSession(), message, place, tags,
new Request.Callback() {
@Override
public void onCompleted(Response response) {
InfoDialog.newInstance(
FacebookReadyBaseActivity.this, "Done",
message, null).show();
}
});
request.executeAsync();
} else {
pendingAction = PendingAction.POST_STATUS_UPDATE;
}
}
private FacebookDialog.PhotoShareDialogBuilder createShareDialogBuilderForPhoto(
Bitmap... photos) {
return new FacebookDialog.PhotoShareDialogBuilder(this)
.addPhotos(Arrays.asList(photos));
}
private FacebookDialog.ShareDialogBuilder createShareDialogBuilderForLink() {
return new FacebookDialog.ShareDialogBuilder(this)
.setName("Hello Facebook")
.setDescription(
"The 'Hello Facebook' sample application showcases simple Facebook integration")
.setLink("http://developers.facebook.com/android");
}
private void onSessionStateChange(Session session, SessionState state,
Exception exception) {
if (pendingAction != PendingAction.NONE
&& (exception instanceof FacebookOperationCanceledException || exception instanceof FacebookAuthorizationException)) {
InfoDialog.newInstance(FacebookReadyBaseActivity.this, "Failed",
"Not granted.", null).show();
pendingAction = PendingAction.NONE;
} else if (state == SessionState.OPENED_TOKEN_UPDATED) {
handlePendingAction();
}
}
}
