Unity Facebook login not works on Facebook App in the Android device

So i implemented Facebook SDK in my project, here the problem is FBlogin not works when i have facebook app in my android device. Please my and my team stuck in this stuff. For more details please replay to this post.

Here is the Code of my Facebook. It is working great when i uninstall facebook app in my device.

With facebook app in my android device : When open my game, facebook window is appear like do you want to continue insted of Login ask, when i click continue its not fetching my details like "Name and Profile Pic"

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using Facebook.Unity;
5. using Facebook.MiniJSON;
6. using UnityEngine.UI;
7. using System.IO;
8. using System;
9.  
10. public class Login : MonoBehaviour
11. {
12.     public string fbname;
13.     public string get_data;
14.     public InputField login_name;
15.     public Image profilePic;
16.     public Text fbNameText,FriendsText;//BABJI
17.     public GameObject loginPanel,mainPanel;
18.  
19.     public bool loggedIn;
20.     void Awake ()
21.     {
22.         if (!FB.IsInitialized)
23.         {
24.             FB.Init(() =>
25.                 {
26.                     if (FB.IsInitialized)
27.                         FB.ActivateApp();
28.                     else
29.                         Debug.LogError("Couldn't initialize");
30.                 },
31.                 isGameShown =>
32.                 {
33.                     if (!isGameShown)
34.                         Time.timeScale = 0;
35.                     else
36.                         Time.timeScale = 1;
37.                 });
38.         }
39.         else
40.             FB.ActivateApp();
41.  
42.     }
43.  
44.     void Start()
45.     {
46.         if (GameSaver.instance.isFBLogin) {
47.             loginPanel.SetActive (false);
48.             login_name.gameObject.SetActive (true);
49.             mainPanel.SetActive (true);
50. //          StartCoroutine (DelayLogIn ());
51.         } else {
52.             loginPanel.SetActive (true);
53.         }
54.     }
55.  
56. //  IEnumerator DelayLogIn()
57. //  {
58. //      yield return new WaitForSeconds (0.1f);
59. //
60. //  }
61.     private void InitCallback ()
62.     {
63.         if (FB.IsInitialized) {
64.             // Signal an app activation App Event
65.             FB.ActivateApp();
66.             // Continue with Facebook SDK
67.             // ...
68.         } else {
69.             Debug.Log("Failed to Initialize the Facebook SDK");
70.         }
71.     }
72.     private void OnHideUnity (bool isGameShown)
73.     {
74.         if (!isGameShown) {
75.             // Pause the game - we will need to hide
76.             Time.timeScale = 0;
77.         } else {
78.             // Resume the game - we're getting focus again
79.             Time.timeScale = 1;
80.         }
81.     }
82.  
83.     public void LoginCalled()
84.     {
85.  
86.         if (!FB.IsLoggedIn)
87.         {
88.             var perms = new List<string> (){ "public_profile", "email" };
89.             FB.LogInWithReadPermissions (perms, AuthCallback);
90.         }
91.         else
92.         {
93.             //
94.  
95.         }
96.         // you are already logged in, do something
97.         FB.API("me?fields=name", HttpMethod.GET, GetFacebookData);
98.         FB.API("me/picture?type=square&height=128&width=128", HttpMethod.GET, GetProfilePicture);
99.         login_name.gameObject.SetActive (true);
100.         mainPanel.SetActive (true);
101.         loginPanel.SetActive (false);
102.         GameSaver.instance.isFBLogin=true;
103.         GameSaver.instance.SaveGameData ();
104.     }
105.  
106.     private void AuthCallback (ILoginResult result)
107.     {
108.         if (FB.IsLoggedIn)
109.         {
110.             // AccessToken class will have session details
111.             var aToken = Facebook.Unity.AccessToken.CurrentAccessToken;
112.             // Print current access token's User ID
113.             Debug.Log(aToken.UserId);
114.             // Print current access token's granted permissions
115.             foreach (string perm in aToken.Permissions)
116.             {
117.                 Debug.Log(perm);
118.             }
119.             FB.API("me?fields=name", Facebook.Unity.HttpMethod.GET, GetFacebookData);
120.             //FB.API("/me/picture?redirect=false", HttpMethod.GET, GetProfilePicture);
121.             //BABJI
122.             FB.API("me/picture?type=square&height=128&width=128", HttpMethod.GET, GetProfilePicture);
123.             login_name.gameObject.SetActive (true);
124.             mainPanel.SetActive (true);
125.             loginPanel.SetActive (false);
126.             GameSaver.instance.isFBLogin=true;
127.             GameSaver.instance.SaveGameData ();
128.             //BABJI
129.             loggedIn = FB.IsLoggedIn;
130.         }
131.         else
132.         {
133.             Debug.Log("User cancelled login");
134.         }
135.     }
136.  
137.     void GetFacebookData(IResult result)
138.     {
139.         fbname = result.ResultDictionary["name"].ToString ();
140.         login_name.text = fbname ;
141.         login_name.gameObject.SetActive (true);
142.         fbNameText.text = fbname;
143.         Debug.Log("fbName: " + fbname);
144.  
145.     }
146.  
147.     private void GetProfilePicture(IGraphResult result)
148.     {
149.         if (result.Error == null && result.Texture != null)
150.         {      
151.             profilePic.sprite = Sprite.Create (result.Texture, new Rect (0, 0, 128, 128), new Vector2 ());
152.         }
153.     }
154.  
155. }

 

My game is not stay in login when I close and open again my game. I have to click again(2nd time) login button to fetch my data like "name and profile pic"