Start addWordActivity when button is pressed

app/src/main/AndroidManifest.xml

@@ -23,6 +23,7 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity android:name=".activities.AddWordActivity"/>
     </application>
 
 </manifest>
\ No newline at end of file

app/src/main/java/com/paktalin/vocabularynotebook/activities/AddWordActivity.java

+package com.paktalin.vocabularynotebook.activities;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v7.app.AppCompatActivity;
+
+import com.paktalin.vocabularynotebook.R;
+
+public class AddWordActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_add_word);
+    }
+}

app/src/main/java/com/paktalin/vocabularynotebook/activities/VocabularyFragment.kt

 package com.paktalin.vocabularynotebook.activities
 
 import android.annotation.SuppressLint
+import android.content.Intent
 import android.os.Bundle
 import android.support.v4.app.Fragment
 import android.util.Log
@@ -25,10 +26,16 @@ class VocabularyFragment : Fragment() {
 
     override fun onActivityCreated(savedInstanceState: Bundle?) {
         super.onActivityCreated(savedInstanceState)
+        fabAddWord.setOnClickListener( { addWord() } )
         extractUserDocument()
         printUserData()
     }
 
+    override fun onDestroy() {
+        super.onDestroy()
+        FirebaseAuth.getInstance().signOut()
+    }
+
     private fun extractUserDocument() {
         val userId = FirebaseAuth.getInstance().currentUser!!.uid
         Log.d(TAG, "retrieved userId: $userId")
@@ -56,9 +63,9 @@ class VocabularyFragment : Fragment() {
         }
     }
 
-    override fun onDestroy() {
-        super.onDestroy()
-        FirebaseAuth.getInstance().signOut()
+    private fun addWord() {
+        val addWordIntent = Intent(activity, AddWordActivity::class.java)
+        startActivity(addWordIntent)
     }
 
     companion object {

app/src/main/res/layout/activity_add_word.xml

+<?xml version="1.0" encoding="utf-8"?>
+<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <EditText
+        android:id="@+id/etWord"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:ems="10"
+        android:hint="Word"
+        app:layout_constraintBottom_toTopOf="@+id/etTranslation"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_chainStyle="packed" />
+
+    <EditText
+        android:id="@+id/etTranslation"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp"
+        android:ems="10"
+        android:hint="Translation"
+        app:layout_constraintBottom_toTopOf="@+id/btnSubmit"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/etWord" />
+
+    <Button
+        android:id="@+id/btnSubmit"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:text="Submit"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/etTranslation" />
+</android.support.constraint.ConstraintLayout>
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