My code seems to crash on Android with NullPointer exception. But works on ios simulator.
private void CallFBInit()
{
if(!FB.IsLoggedIn){
FB.Init(OnInitComplete, OnHideUnity);
}else{
shareDialog();
}
}
private void OnInitComplete()
{
FB.Login("email,publish_actions",fbLoginCallBack);
}
private void fbLoginCallBack(FBResult result){
shareDialog();
}
#region FB.Feed() example
public bool IncludeFeedProperties = false;
private Dictionary<string, string[]> FeedProperties = new Dictionary<string, string[]>();
private void CallFBFeed(FBResult result)
{
shareDialog();
}
private void shareDialog(){
Dictionary<string, string[]> feedProperties = null;
if (IncludeFeedProperties)
{
feedProperties = FeedProperties;
}
FB.Feed(
toId: FB.UserId,
link: ConfigCS.FeedLink,
linkName: ConfigCS.FeedLinkName,
linkCaption: ConfigCS.FeedLinkCaption,
linkDescription: ConfigCS.FeedLinkDescription,
picture:ConfigCS.FeedPicture,
mediaSource: ConfigCS.FeedMediaSource,
actionName: ConfigCS.FeedActionName,
actionLink: ConfigCS.FeedActionLink,
reference: ConfigCS.FeedReference,
properties: feedProperties,
callback: CallbackForFeed
);
}
#endregion
void CallbackForFeed(FBResult result)
{
if(result.Error!=null){
errorMessage=ConfigCS.fbError+result.Text;
showError=true;
return;
}else{
Debug.Log ("FB Feed error");
}
return;
}
private void OnHideUnity(bool isGameShown)
{
Debug.Log("Is game showing? " + isGameShown);
}
#endregion
I coul'dnt figure out why. When the login dialog is shown, and returns to the app, the app crashes. But if i try again, (since the user is considered logged in), it works without a hiccup. Can somebody see any error in my code?
edit:
To be more precise
1. when user clicks share, fb login dialog opens
2. Once the user successfully logs in, and returns the app, the app crashes with nullpointer exception
I open the app again, and click share (at this point the user is already logged in before the crash) and it works.
I coul'dnt pin point the error since adb log just says NullPointException in facebook.loginActivity.
My initiating function is CallFBInit();
Edit:
One more thing i have noticed is, i have installed facebook sdk 4.3.3 but it shows 4.2.5 in the console
and in the editor
This seems to be a problem with the new 4.3.3 SDK
I have downgraded to 4.2.4 and it works fine.
Is this a known problem?
Related
I have a Xamarin.Forms app and I am using FreshMvvm framework.
If I do this from ViewIsAppearing method of FirstPageModel:
CoreMethods.PushPageModel<SecondPageModel>();
I go the "SecondPageModel". Then, when I am in the "SecondPageModel" if I do:
CoreMethods.PopPageModel();
or press hard back button, or press title bar back button not works in Android (anything happens). I am using FreshMasterDetailNavigationContainer.
In iOS it works OK, I get back to FirstPageModel.
This is because ViewIsAppearing will always be called when the page starts displaying on the screen. When you pop the second page then go to the first page, the first page's ViewIsAppearing will fire again. It caused a dead cycle and prohibited your app from returning to the first page.
Add a property to avoid that:
bool isInitialized;
public FirstPageModel()
{
// ...
isInitialized = true;
}
protected async override void ViewIsAppearing(object sender, EventArgs e)
{
base.ViewIsAppearing(sender, e);
if (isInitialized)
{
await Task.Delay(100);
await CoreMethods.PushPageModel<SecondPageModel>();
isInitialized = false;
}
}
iOS may optimize this process, but I still recommend you to add this judgment statement.
Update:
Call it when your app has reached the main thread.
protected override void ViewIsAppearing(object sender, EventArgs e)
{
base.ViewIsAppearing(sender, e);
if (isInitialized)
{
Device.BeginInvokeOnMainThread(() =>
{
CoreMethods.PushPageModel<SecondPageModel>();
isInitialized = false;
});
}
}
I just start write my first game with unity.
I Created on facebook app - in games category.
I downloaded Facebook idk and added to unity.
I changed app id in Facebook settings.
Now I tried my code:
public class LoginScript : MonoBehaviour {
public string resultstr { get; set; }
public Text LableResult { get; set; }
List<string> perms = new List<string> (){"public_profile", "email", "user_friends"};
// Use this for initialization
void Start () {
LableResult = gameObject.GetComponent<Text> ();
LableResult.text = "Test";
if (!FB.IsInitialized) {
// Initialize the Facebook SDK
FB.Init (InitCallback, OnHideUnity);
} else {
// Already initialized, signal an app activation App Event
FB.ActivateApp ();
}
}
private void InitCallback ()
{
if (FB.IsInitialized) {
// Signal an app activation App Event
FB.ActivateApp ();
// Continue with Facebook SDK
// ...
} else {
Debug.Log ("Failed to Initialize the Facebook SDK");
}
}
private void OnHideUnity (bool isGameShown)
{
if (!isGameShown) {
// Pause the game - we will need to hide
Time.timeScale = 0;
} else {
// Resume the game - we're getting focus again
Time.timeScale = 1;
}
}
// Update is called once per frame
void Update () {
}
private void AuthCallback (ILoginResult result)
{
if (FB.IsLoggedIn) {
// AccessToken class will have session details
var aToken = Facebook.Unity.AccessToken.CurrentAccessToken;
// Print current access token's User ID
Debug.Log (aToken.UserId);
// Print current access token's granted permissions
foreach (string perm in aToken.Permissions) {
Debug.Log (perm);
}
} else {
Debug.Log ("User cancelled login");
}
}
// On Facebook login button
public void OnFacebook ()
{
FB.LogInWithReadPermissions (perms, AuthCallback);
}
}
But I'm ALWAYS getting in Result:
Graph Api Error: 400 Bad request
And callback_id 2 (sometimes I've seen 3)
Login I try in Mock window with token from facebook.
I tried deploy on iPhone - and game just crashed when I click on login button
Please to close this topic. I fixed it. It was my fail )) (Used app token instead user token )) (Happends)))))
The same thing happened to me!
Remember to check the user token part, which won't be set by default!
I am having problem with facebook login in my cn1 app. I followed all the instructions given here: http://www.codenameone.com/facebook-login.html. I create a new instance of FacebookConnect then I set the clientId, secret etc. Then I set a LoginCallback and call doLogin(). However when I tried to run it on my device the screen just loads and it never stops. It doesn't even call LoginFailed. It just never stopped loading.
Here is my code:
faceBookButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
fb.setClientId("XXXXXXXXXXXXXXXX");
fb.setClientSecret("XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");
fb.setRedirectURI("");
fb.setCallback(new LoginCallback(){
#Override
public void loginFailed(String errorMessage) {
Dialog dg = new Dialog();
dg.setDisposeWhenPointerOutOfBounds(true);
dg.setTitle("Login succeeded");
dg.show();
}
#Override
public void loginSuccessful() {
String token = fb.getAccessToken().getToken();
Dialog dg = new Dialog();
dg.setDisposeWhenPointerOutOfBounds(true);
dg.setTitle("Login succeeded");
dg.show();
}
});
fb.doLogin();
}
});
Check out the full guide on facebook login here.
On login success you need to show a new Form and not a Dialog as you are moving away from the login screen of your application. There is a full end to end sample in the chat tutorial.
I am having a strange issue when trying to test the Facebook sdk(login) in Unity Editor. The login procedure works fine, but after successfully logging in (pasting the token generator) , Facebook throws me back in to my first scene instead of staying in the same scene, where the login procedure was started.
Any ideas why this is happening?
Update: Strangly enough, this only happens when "maximize on play" is enabled.
Update: Code snipet:
public class UserManager : MonoBehaviour {
public Button fbLoginButton;
public Text errorSuccessText;
public void Start() {
fbLoginButton.interactable = false;
FB.Init (OnFBInitComplete);
fbLoginButton.onClick.AddListener (() => SubmitFBInfo ());
}
private void OnFBInitComplete() {
fbLoginButton.interactable = true;
}
private void SubmitFBInfo() {
FB.Login("email,publish_actions", FBLoginCallback);
}
private void FBLoginCallback(FBResult result) {
if (FB.IsLoggedIn) {
errorSuccessText.text = "Logged In with Facebook";
}
}
I need to share a message on Facebook in my windows phone App by clicking share button. when click share button , if user has not logged in to Facebook, first we redirect to log in screen and then need to ask permission to publish.
public partial class FacebookLoginPage : PhoneApplicationPage
{
string uriToLaunch ;
// Create a Uri object from a URI string
Uri uri = null;
public FacebookLoginPage()
{
InitializeComponent();
uriToLaunch = #"fbconnect://authorize?client_id={AppID}&
scope=public_profile,publish_actions,read_stream&
redirect_uri=msft-{ProductId}%3a%2f%2fauthorize";
uri = new Uri(uriToLaunch);
this.Loaded += FacebookLoginPage_Loaded;
}
private void FacebookLoginPage_Loaded(object sender, RoutedEventArgs e)
{
DefaultLaunch();
}
// Launch the URI
async void DefaultLaunch()
{
// Launch the URI
var success = await Windows.System.Launcher.LaunchUriAsync(uri);
if (success)
{
// URI launched
}
else
{
// URI launch failed
}
}
}
I used above code , but permission screen not appears for publish. Output was as follows.
I followed example and used an AppId, then it works well. I feel that there is special configuration in Facebook App side . Please help me If anyone have idea about it.