Navigation elements added.

app/src/main/java/com/example/soulfood_assignment2/build_playlist.java

@@ -119,6 +119,11 @@ public class build_playlist extends AppCompatActivity {
         startActivity(intent);
     }
 
+    public void homeScreenViewOnClick(View view) {
+        Intent intent = new Intent(this, homeScreen.class);
+        startActivity(intent);
+    }
+
 
 }
 

app/src/main/java/com/example/soulfood_assignment2/playlistView.java

 package com.example.soulfood_assignment2;
 
+import android.content.Intent;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
+import android.view.View;
 import android.widget.ListView;
 
 import static com.example.soulfood_assignment2.databaseInterface.Cuisine.american;
@@ -92,4 +94,9 @@ public class playlistView extends AppCompatActivity {
         thaiAsyncTask.execute();
         playlistView = thaiAsyncTask.listView;
     }
+
+    public void newSearchViewOnClick(View view) {
+        Intent intent = new Intent(this, build_playlist.class);
+        startActivity(intent);
+    }
 }

app/src/main/java/com/example/soulfood_assignment2/searchScreen.java

@@ -119,5 +119,10 @@ public class searchScreen extends AppCompatActivity {
 
     }
 
+    public void homeScreenViewOnClick(View view) {
+        Intent intent = new Intent(this, homeScreen.class);
+        startActivity(intent);
+    }
+
 
 }
\ No newline at end of file

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

@@ -56,6 +56,7 @@
         android:layout_marginEnd="100dp"
         android:layout_marginRight="100dp"
         android:layout_marginBottom="49dp"
+        android:onClick="newSearchViewOnClick"
         android:text="New Search"
         app:layout_constraintBottom_toTopOf="@+id/playlistView"
         app:layout_constraintEnd_toEndOf="parent"

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

@@ -6,6 +6,21 @@
     android:layout_height="match_parent"
     tools:context=".searchScreen">
 
+    <Button
+        android:id="@+id/button2"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="36dp"
+        android:layout_marginLeft="36dp"
+        android:layout_marginTop="16dp"
+        android:layout_marginBottom="21dp"
+        android:onClick="homeScreenViewOnClick"
+        android:text="Back"
+        app:layout_constraintBottom_toTopOf="@+id/textView4"
+        app:layout_constraintEnd_toStartOf="@+id/textView"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
     <ListView
         android:id="@+id/tagListView"
         android:layout_width="wrap_content"
@@ -29,8 +44,8 @@
         android:typeface="sans"
         app:fontFamily="sans-serif"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHorizontal_bias="0.498"
-        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintHorizontal_bias="0.207"
+        app:layout_constraintStart_toEndOf="@+id/button2"
         app:layout_constraintTop_toTopOf="parent" />
 
     <SearchView

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

@@ -10,7 +10,7 @@
         android:id="@+id/songScreen"
         android:layout_width="wrap_content"
         android:layout_height="500dp"
-        android:layout_marginTop="52dp"
+        android:layout_marginTop="36dp"
         android:layout_marginBottom="71dp"
         android:visibility="visible"
         app:layout_constraintBottom_toBottomOf="parent"
@@ -23,11 +23,13 @@
         android:layout_width="128dp"
         android:layout_height="41dp"
         android:layout_marginTop="16dp"
+        android:layout_marginBottom="21dp"
         android:text="SoulFood"
         android:textColor="#000000"
         android:textSize="30sp"
         android:typeface="sans"
         app:fontFamily="sans-serif"
+        app:layout_constraintBottom_toTopOf="@+id/tagTextView"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
@@ -36,11 +38,13 @@
         android:id="@+id/tagTextView"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_marginTop="75dp"
+        android:layout_marginTop="25dp"
+        android:layout_marginBottom="41dp"
         android:text='Songs with "" Tag'
         android:textColor="#000000"
         android:textSize="24sp"
+        app:layout_constraintBottom_toTopOf="@+id/songScreen"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+        app:layout_constraintTop_toBottomOf="@+id/textView5" />
 </android.support.constraint.ConstraintLayout>
\ No newline at end of file

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

@@ -43,6 +43,8 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginTop="5dp"
+        android:layout_marginEnd="150dp"
+        android:layout_marginRight="150dp"
         android:layout_marginBottom="50dp"
         android:text="SoulFood"
         android:textColor="#000000"
@@ -51,8 +53,7 @@
         app:fontFamily="sans-serif"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHorizontal_bias="0.498"
-        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintStart_toEndOf="@+id/button"
         app:layout_constraintTop_toTopOf="parent"
         app:layout_constraintVertical_bias="0.0" />
 
@@ -143,4 +144,21 @@
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/cuisine_dropdown" />
 
+    <Button
+        android:id="@+id/button"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="20dp"
+        android:layout_marginLeft="20dp"
+        android:layout_marginTop="20dp"
+        android:layout_marginEnd="71dp"
+        android:layout_marginRight="71dp"
+        android:layout_marginBottom="21dp"
+        android:onClick="homeScreenViewOnClick"
+        android:text="Back"
+        app:layout_constraintBottom_toTopOf="@+id/textView4"
+        app:layout_constraintEnd_toStartOf="@+id/textView"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
 </android.support.constraint.ConstraintLayout>
\ No newline at end of file