Create empty SettingsActivity and an Intent to open it from the Settings icon in the MainActivity bottom status bar.

app/src/main/AndroidManifest.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-          xmlns:tools="http://schemas.android.com/tools" package="cy.agorise.bitsybitshareswallet">
+          xmlns:tools="http://schemas.android.com/tools"
+          package="cy.agorise.bitsybitshareswallet">
 
     <application
         android:allowBackup="true"
@@ -15,10 +16,15 @@
             android:label="@string/app_name"
             android:theme="@style/AppTheme.NoActionBar">
             <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
+                <action android:name="android.intent.action.MAIN"/>
-                <category android:name="android.intent.category.LAUNCHER" />
+
+                <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
+        <activity
+            android:name=".activities.SettingsActivity"
+            android:label="@string/title_settings">
+        </activity>
     </application>
 
 </manifest>

app/src/main/java/cy/agorise/bitsybitshareswallet/activities/MainActivity.kt

@@ -1,13 +1,12 @@
 package cy.agorise.bitsybitshareswallet.activities
 
+import android.content.Intent
 import android.support.v7.app.AppCompatActivity
 
 import android.support.v4.app.Fragment
 import android.support.v4.app.FragmentManager
 import android.support.v4.app.FragmentPagerAdapter
 import android.os.Bundle
-import android.view.Menu
-import android.view.MenuItem
 import cy.agorise.bitsybitshareswallet.BuildConfig
 import cy.agorise.bitsybitshareswallet.R
 import cy.agorise.bitsybitshareswallet.fragments.BalancesFragment
@@ -32,7 +31,6 @@ class MainActivity : AppCompatActivity() {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
 
-        //setSupportActionBar(toolbar)
         // Create the adapter that will return a fragment for each of the three
         // primary sections of the activity.
         mSectionsPagerAdapter = SectionsPagerAdapter(supportFragmentManager)
@@ -44,30 +42,24 @@ class MainActivity : AppCompatActivity() {
         // Force first tab to show BTS icon
         tabLayout.getTabAt(0)?.setIcon(R.drawable.tab_home_selector)
 
+        initBottomBar()
+
+        ivSettings.setOnClickListener {
+            val intent = Intent(this, SettingsActivity::class.java)
+            startActivity(intent)
+        }
+    }
+
+    private fun initBottomBar() {
+        // Show app version number in bottom bar
         tvBuildVersion.text = String.format("v%s", BuildConfig.VERSION_NAME)
+
+        // Show block number in bottom bar
+        tvBlockNumber.text = getString(R.string.block_number_bottom_bar, "-----")
+
+        // TODO add listener to update block number
     }
 
-
-    override fun onCreateOptionsMenu(menu: Menu): Boolean {
-        // Inflate the menu; this adds items to the action bar if it is present.
-        menuInflater.inflate(R.menu.menu_main, menu)
-        return true
-    }
-
-    override fun onOptionsItemSelected(item: MenuItem): Boolean {
-        // Handle action bar item clicks here. The action bar will
-        // automatically handle clicks on the Home/Up button, so long
-        // as you specify a parent activity in AndroidManifest.xml.
-        val id = item.itemId
-
-        if (id == R.id.action_settings) {
-            return true
-        }
-
-        return super.onOptionsItemSelected(item)
-    }
-
-
     /**
      * A [FragmentPagerAdapter] that returns a fragment corresponding to
      * one of the sections/tabs/pages.

app/src/main/java/cy/agorise/bitsybitshareswallet/activities/SettingsActivity.kt

@@ -0,0 +1,32 @@
+package cy.agorise.bitsybitshareswallet.activities
+
+import android.os.Bundle
+import android.view.MenuItem
+import android.support.v7.app.AppCompatActivity
+
+/**
+ * A simple activity for the user to select his preferences
+ */
+class SettingsActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setupActionBar()
+    }
+
+    /**
+     * Set up the [android.app.ActionBar], if the API is available.
+     */
+    private fun setupActionBar() {
+        supportActionBar?.setDisplayHomeAsUpEnabled(true)
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        if (item.itemId == android.R.id.home) {
+            onBackPressed()
+            return true
+        }
+        return super.onOptionsItemSelected(item)
+    }
+
+}

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

@@ -66,7 +66,7 @@
             android:id="@+id/tvBlockNumber"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:text="Block: ----"
+            tools:text="Block: ----"
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
@@ -92,7 +92,8 @@
             android:src="@drawable/ic_settings"
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintEnd_toEndOf="parent"
-            app:layout_constraintTop_toTopOf="parent"/>
+            app:layout_constraintTop_toTopOf="parent"
+            android:contentDescription="@string/title_settings"/>
 
     </android.support.constraint.ConstraintLayout>
 

app/src/main/res/menu/menu_main.xml

@@ -1,9 +0,0 @@
-<menu xmlns:android="http://schemas.android.com/apk/res/android"
-      xmlns:app="http://schemas.android.com/apk/res-auto"
-      xmlns:tools="http://schemas.android.com/tools"
-      tools:context="cy.agorise.bitsybitshareswallet.activities.MainActivity">
-    <item android:id="@+id/action_settings"
-          android:title="@string/action_settings"
-          android:orderInCategory="100"
-          app:showAsAction="never"/>
-</menu>

app/src/main/res/values/strings.xml

@@ -1,10 +1,11 @@
 <resources>
     <string name="app_name">BiTSy</string>
-    <string name="tab_text_1">Tab 1</string>
+
-    <string name="tab_text_2">Tab 2</string>
+    <!-- Main Activity -->
-    <string name="tab_text_3">Tab 3</string>
-    <string name="action_settings">Settings</string>
-    <string name="section_format">Hello World from section: %1$d</string>
     <string name="title_transactions">Transactions</string>
     <string name="title_merchants">Merchants</string>
+    <string name="block_number_bottom_bar">Block: %1$s</string>
+
+    <!-- Settings -->
+    <string name="title_settings">Settings</string>
 </resources>