Add settings button to toolbar.

briar-android/src/main/java/org/briarproject/briar/android/navdrawer/TransportsActivity.java

@@ -1,7 +1,10 @@
 package org.briarproject.briar.android.navdrawer;
 
+import android.content.Intent;
 import android.os.Bundle;
 import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
@@ -21,6 +24,7 @@ import org.briarproject.bramble.api.plugin.TransportId;
 import org.briarproject.briar.R;
 import org.briarproject.briar.android.activity.ActivityComponent;
 import org.briarproject.briar.android.activity.BriarActivity;
+import org.briarproject.briar.android.settings.SettingsActivity;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -85,10 +89,20 @@ public class TransportsActivity extends BriarActivity {
 		if (item.getItemId() == android.R.id.home) {
 			onBackPressed();
 			return true;
+		} else if (item.getItemId() == R.id.action_open_settings) {
+			startActivity(new Intent(this, SettingsActivity.class));
+			return true;
 		}
 		return false;
 	}
 
+	@Override
+	public boolean onCreateOptionsMenu(Menu menu) {
+		MenuInflater inflater = getMenuInflater();
+		inflater.inflate(R.menu.transports_actions, menu);
+		return super.onCreateOptionsMenu(menu);
+	}
+
 	private void initializeCards() {
 		transportsAdapter = new BaseAdapter() {
 

briar-android/src/main/res/drawable/ic_settings_white.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportHeight="24.0"
+        android:viewportWidth="24.0">
+	<path
+		android:fillColor="#FFFFFFFF"
+		android:pathData="M19.43,12.98c0.04,-0.32 0.07,-0.64 0.07,-0.98s-0.03,-0.66 -0.07,-0.98l2.11,-1.65c0.19,-0.15 0.24,-0.42 0.12,-0.64l-2,-3.46c-0.12,-0.22 -0.39,-0.3 -0.61,-0.22l-2.49,1c-0.52,-0.4 -1.08,-0.73 -1.69,-0.98l-0.38,-2.65C14.46,2.18 14.25,2 14,2h-4c-0.25,0 -0.46,0.18 -0.49,0.42l-0.38,2.65c-0.61,0.25 -1.17,0.59 -1.69,0.98l-2.49,-1c-0.23,-0.09 -0.49,0 -0.61,0.22l-2,3.46c-0.13,0.22 -0.07,0.49 0.12,0.64l2.11,1.65c-0.04,0.32 -0.07,0.65 -0.07,0.98s0.03,0.66 0.07,0.98l-2.11,1.65c-0.19,0.15 -0.24,0.42 -0.12,0.64l2,3.46c0.12,0.22 0.39,0.3 0.61,0.22l2.49,-1c0.52,0.4 1.08,0.73 1.69,0.98l0.38,2.65c0.03,0.24 0.24,0.42 0.49,0.42h4c0.25,0 0.46,-0.18 0.49,-0.42l0.38,-2.65c0.61,-0.25 1.17,-0.59 1.69,-0.98l2.49,1c0.23,0.09 0.49,0 0.61,-0.22l2,-3.46c0.12,-0.22 0.07,-0.49 -0.12,-0.64l-2.11,-1.65zM12,15.5c-1.93,0 -3.5,-1.57 -3.5,-3.5s1.57,-3.5 3.5,-3.5 3.5,1.57 3.5,3.5 -1.57,3.5 -3.5,3.5z"/>
+</vector>

briar-android/src/main/res/menu/navigation_drawer.xml

@@ -24,7 +24,7 @@
 	<group android:checkableBehavior="single">
 		<item
 			android:id="@+id/nav_btn_settings"
-			android:icon="@drawable/ic_settings_black_24dp"
+			android:icon="@drawable/ic_settings_black"
 			android:title="@string/settings_button"/>
 		<item
 			android:id="@+id/nav_btn_lock"

briar-android/src/main/res/menu/transports_actions.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu
+	xmlns:android="http://schemas.android.com/apk/res/android"
+	xmlns:app="http://schemas.android.com/apk/res-auto">
+
+	<item
+		android:id="@+id/action_open_settings"
+		android:icon="@drawable/ic_settings_white"
+		android:title="@string/settings_button"
+		app:showAsAction="always"/>
+
+</menu>