许可facebook sdk Android

Question

Working on Facebook . Unable to get publish_actions permission. Using this code:

session.requestNewPublishPermissions(new
Session.NewPermissionsRequest(this, PERMISSION));

any solution...

Answer 1

private static final List<String> PERMISSIONS = Arrays.asList("publish_actions");
private boolean pendingPublishReauthorization = false;

in onActivityResult do this

Session session = Session.getActiveSession();

    if (session != null) {

        // Check for publish permissions
        List<String> permissions = session.getPermissions();
        if (!isSubsetOf(PERMISSIONS, permissions)) {
            pendingPublishReauthorization = true;
            Session.NewPermissionsRequest newPermsnRequest = new Session.NewPermissionsRequest(
                    this, PERMISSIONS);
            session.requestNewPublishPermissions(newPermsnRequest );
            return;
        }
    }

Also implement this in your class.

private boolean isSubsetOf(Collection<String> a,
        Collection<String> b) {
    for (String string : a) {
        if (!b.contains(string)) {
            return false;
        }
    }
    return true;
}

By doing this you will be able to get all the public permissions. you have to open the session after getting read permissions and then only request for publish permissions.

Answer 2

Facebook sdk only returns read-permission, but not the write permissions. You can user the "/me" endpoint to get all the permissions.

    final Bundle permBundle = new Bundle();
    permBundle.putCharSequence("permission", "publish_actions");
    GraphRequest request = new GraphRequest(
            AccessToken.getCurrentAccessToken(),
            "/me/permissions", permBundle, HttpMethod.GET,
            new GraphRequest.Callback() {
                @Override
                public void onCompleted(GraphResponse graphResponse) {
                    Log.d(TAG, "response2: " + graphResponse.getJSONObject());
                    try {
                        JSONArray permList = (JSONArray) graphResponse.getJSONObject().get("data");
                        if(permList.length() == 0){
                            // no data for perms, hence asking permission
                            askForFBPublishPerm();
                        }else{
                            JSONObject permData = (JSONObject) permList.get(0);
                            String permVal = (String) permData.get("status");
                            if(permVal.equals("granted")){
                                postToFB();
                            }else{
                                askForFBPublishPerm();
                            }
                        }
                    } catch (JSONException e) {
                        Log.d(TAG, "exception while parsing fb check perm data" + e.toString());
                    }

                }
            }
    );
    request.executeAsync();