changes.diff

diff --git a/app/build.gradle b/app/build.gradle
index f811d5a..b7d7107 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -56,6 +56,8 @@ dependencies {
     testImplementation 'org.mockito:mockito-core:2.7.22'
     // required if you want to use Mockito for Android tests
     androidTestImplementation 'org.mockito:mockito-android:2.7.22'
+    implementation 'com.facebook.android:facebook-login:[4,5)'
+
 
 }
 repositories {	mavenCentral() }
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index b811b34..c588cab 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -8,7 +8,6 @@
          location permissions for the 'MyLocation' functionality. 
     -->
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
-
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
@@ -37,13 +36,37 @@
              sign the APK for publishing.
              You can define the keys for the debug and release targets in src/debug/ and src/release/. 
         -->
-        <meta-data
-            android:name="com.google.android.geo.API_KEY"
-            android:value="@string/google_maps_key" />
 
+
+
+
+
+        <!-- start of facebook metadata!! -->
+        <meta-data android:name="com.facebook.sdk.ApplicationId"
+            android:value="@string/facebook_app_id"/>
+
+        <activity android:name="com.facebook.FacebookActivity"
+            android:configChanges=
+                "keyboard|keyboardHidden|screenLayout|screenSize|orientation"
+            android:label="@string/app_name" />
         <activity
-            android:name=".controllers.Maps"
-            android:label="@string/title_activity_maps"></activity>
+            android:name="com.facebook.CustomTabActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+                <data android:scheme="@string/fb_login_protocol_scheme" />
+            </intent-filter>
+        </activity>
+
+        <!-- end of facebook meta data -->
+
+
     </application>
 
+    <!-- added for facebook permissions -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <!-- end of permission added for facebook -->
+
 </manifest>
\ No newline at end of file
diff --git a/app/src/main/java/com/example/notphilphil/bob/controllers/LoginActivity.java b/app/src/main/java/com/example/notphilphil/bob/controllers/LoginActivity.java
index 37e9517..bc4de7a 100644
--- a/app/src/main/java/com/example/notphilphil/bob/controllers/LoginActivity.java
+++ b/app/src/main/java/com/example/notphilphil/bob/controllers/LoginActivity.java
@@ -7,12 +7,19 @@ import android.os.Bundle;
 import android.util.Log;
 import android.widget.Button;
 import android.widget.EditText;
+import android.widget.TextView;
 
 import com.example.notphilphil.bob.R;
 import com.example.notphilphil.bob.models.Admin;
 import com.example.notphilphil.bob.models.LocationEmployee;
 import com.example.notphilphil.bob.models.Manager;
 import com.example.notphilphil.bob.models.User;
+import com.facebook.CallbackManager;
+import com.facebook.FacebookCallback;
+import com.facebook.FacebookException;
+import com.facebook.FacebookSdk;
+import com.facebook.login.LoginResult;
+import com.facebook.login.widget.LoginButton;
 
 import java.io.BufferedReader;
 import java.io.File;
@@ -23,9 +30,17 @@ public class LoginActivity extends AppCompatActivity {
     private EditText login_et;
     private EditText password_et;
 
+    //for facebook
+    LoginButton loginButton;
+    TextView textView;
+    CallbackManager callbackManager;
+    //end of facebook items
+
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+        FacebookSdk.sdkInitialize(getApplicationContext()); //initialize facebook SDK
         setContentView(R.layout.activity_login);
 
         login_et = findViewById(R.id.username_et);
@@ -54,8 +69,44 @@ public class LoginActivity extends AppCompatActivity {
             LoggedUser.newInstance();
             startActivity(intent);
         });
+
+
+
+        /////////// start of facebook
+
+        loginButton = (LoginButton) findViewById(R.id.fblogin_button);  //facebook
+        textView = (TextView) findViewById(R.id.textView);  //facebook
+        callbackManager = CallbackManager.Factory.create(); //facebook
+        loginButton.registerCallback(callbackManager, new FacebookCallback<LoginResult>() { //facebook
+            @Override
+            public void onSuccess(LoginResult loginResult) {
+                Intent intent = new Intent(loginButton.getContext(),HomeActivity.class);
+                LoggedUser.newInstance();
+                startActivity(intent);
+            }
+
+            @Override
+            public void onCancel() {
+
+            }
+
+            @Override
+            public void onError(FacebookException error) {
+
+            }
+        });
+
+        //////////end of facebook inside the onCreate() method
     }
 
+        //////method created for facebook activity
+        @Override
+            protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+            callbackManager.onActivityResult(requestCode, resultCode, data) ;
+        };
+        /////////// end of facebook method
+
+
     boolean loginPressed(String curr_login, String curr_password, File regUsers, Context context) {
         if (regUsers.exists()) {
             try {
diff --git a/app/src/main/res/layout/activity_login.xml b/app/src/main/res/layout/activity_login.xml
index 0d2543b..65ff634 100644
--- a/app/src/main/res/layout/activity_login.xml
+++ b/app/src/main/res/layout/activity_login.xml
@@ -46,7 +46,7 @@
         android:layout_marginLeft="8dp"
         android:layout_marginRight="8dp"
         android:layout_marginStart="8dp"
-        android:layout_marginTop="8dp"
+        android:layout_marginTop="16dp"
         android:text="Register"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
@@ -84,6 +84,7 @@
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/username_et" />
 
+
     <TextView
         android:id="@+id/password_tv"
         android:layout_width="wrap_content"
@@ -117,4 +118,14 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/register_button" />
+
+
+    <com.facebook.login.widget.LoginButton
+        android:id="@+id/fblogin_button"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center_horizontal"
+        tools:layout_editor_absoluteX="16dp"
+        tools:layout_editor_absoluteY="16dp" />
+
 </android.support.constraint.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 3e7441a..72075ea 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -19,4 +19,10 @@
     <string name="delete">Delete</string>
     <string name="title_activity_maps">Map</string>
     <string name="category">Category</string>
+
+<!-- added facebook login stuff -->
+    <string name="facebook_app_id">293524841279421</string>
+    <string name="fb_login_protocol_scheme">fb293524841279421</string>
+<!-- end of facebook stuff -->
+
 </resources>
diff --git a/build.gradle b/build.gradle
index 82f8bf1..b831097 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,6 +5,8 @@ buildscript {
     repositories {
         google()
         jcenter()
+        jcenter()
+
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.2.1'