我找到了解决方案。您只需要添加“to”和“from”参数。以下是我的示例：
对于向单个朋友发布的墙：
private void publishFeedDialog(String friend_uid) {
Session session = Session.getActiveSession();
if (!hasPublishPermission()) {
// We don't have the permission to post yet.
session.requestNewPublishPermissions(new Session.NewPermissionsRequest(this, WRITE_PERMISSION));
}
if (user != null && friend_uid != null && hasPublishPermission()) {
final Activity activity = this;
Bundle params = new Bundle();
//This is what you need to post to a friend's wall
params.putString("from", "" + user.getId());
params.putString("to", friend_uid);
//up to this
params.putString("name", "Facebook SDK for Android");
params.putString("caption", "Build great social apps and get more installs.");
params.putString("description", "The Facebook SDK for Android makes it easier and faster to develop Facebook integrated Android apps.");
params.putString("link", "https://developers.facebook.com/android");
params.putString("picture", "https://raw.github.com/fbsamples/ios-3.x-howtos/master/Images/iossdk_logo.png");
WebDialog feedDialog = (new WebDialog.FeedDialogBuilder(this, Session.getActiveSession(), params))
.setOnCompleteListener(new OnCompleteListener() {
@Override
public void onComplete(Bundle values, FacebookException error) {
if (error == null) {
// When the story is posted, echo the success
// and the post Id.
final String postId = values.getString("post_id");
if (postId != null) {
Toast.makeText(activity,
"Posted story, id: "+postId,
Toast.LENGTH_SHORT).show();
} else {
// User clicked the Cancel button
Toast.makeText(activity,
"Publish cancelled",
Toast.LENGTH_SHORT).show();
}
} else if (error instanceof FacebookOperationCanceledException) {
// User clicked the "x" button
Toast.makeText(activity,
"Publish cancelled",
Toast.LENGTH_SHORT).show();
} else {
// Generic, ex: network error
Toast.makeText(activity,
"Error posting story",
Toast.LENGTH_SHORT).show();
}
}
}).build();
feedDialog.show();
}
}
对于许多朋友的墙贴：
RequestsDialogBuilder 而不是 FeedDialogBuilder 因为第二个只允许参数“to”上有多个 id，而第一个可以接收很多（虽然不确定限制，但我认为大约是 50）
学分：gian1200