Create preferences

app/build.gradle

@@ -33,6 +33,7 @@ dependencies {
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
     implementation 'org.nanohttpd:nanohttpd:2.2.0'
     implementation 'androidx.localbroadcastmanager:localbroadcastmanager:1.0.0'
+    implementation 'androidx.preference:preference:1.1.0-rc01'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'androidx.test.ext:junit:1.1.1'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'

app/src/main/AndroidManifest.xml

@@ -13,6 +13,10 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
+        <activity
+            android:name=".preference.PreferencesActivity"
+            android:label="@string/title_activity_preferences"
+            android:parentActivityName=".MainActivity"/>
 
         <service
             android:name=".service.ForegroundService"

app/src/main/java/io/bartek/MainActivity.kt

@@ -3,10 +3,13 @@ package io.bartek
 import android.content.*
 import android.os.Build
 import android.os.Bundle
+import android.view.Menu
+import android.view.MenuItem
 import android.view.View
 import android.widget.Button
 import androidx.appcompat.app.AppCompatActivity
 import androidx.localbroadcastmanager.content.LocalBroadcastManager
+import io.bartek.preference.PreferencesActivity
 import io.bartek.service.ForegroundService
 import io.bartek.service.ServiceState
 
@@ -24,6 +27,19 @@ class MainActivity : AppCompatActivity() {
         }
     }
 
+    override fun onCreateOptionsMenu(menu: Menu?): Boolean {
+        menuInflater.inflate(R.menu.menu_main, menu)
+        return true
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        when(item.itemId) {
+            R.id.open_preferences -> startActivity(Intent(this, PreferencesActivity::class.java))
+        }
+
+        return super.onOptionsItemSelected(item)
+    }
+
     private fun updateViewAccordingToServiceState(newState: ServiceState) {
         controlServerButton.isEnabled = true
         when (newState) {
@@ -53,8 +69,6 @@ class MainActivity : AppCompatActivity() {
         super.onPause()
     }
 
-    fun openTTSSettings(view: View) = startActivity(Intent("com.android.settings.TTS_SETTINGS"))
-
     fun controlServer(view: View) {
         controlServerButton.isEnabled = false
         when (ForegroundService.state) {

app/src/main/java/io/bartek/preference/PreferencesActivity.kt

@@ -0,0 +1,19 @@
+package io.bartek.preference
+
+import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
+import androidx.preference.PreferenceFragmentCompat
+import io.bartek.R
+
+class PreferencesActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_preferences)
+        supportFragmentManager
+            .beginTransaction()
+            .replace(R.id.preferences, PreferencesFragment())
+            .commit()
+        supportActionBar?.setDisplayHomeAsUpEnabled(true)
+    }
+}

app/src/main/java/io/bartek/preference/PreferencesFragment.kt

@@ -0,0 +1,28 @@
+package io.bartek.preference
+
+import android.content.Intent
+import android.os.Bundle
+import androidx.preference.EditTextPreference
+import androidx.preference.Preference
+import androidx.preference.PreferenceFragmentCompat
+import androidx.preference.SwitchPreference
+import io.bartek.R
+
+class PreferencesFragment : PreferenceFragmentCompat() {
+    private lateinit var portPreference: EditTextPreference
+    private lateinit var sayEndpointPreference: SwitchPreference
+    private lateinit var waveEndpointPreference: SwitchPreference
+    private lateinit var ttsEnginePreference: Preference
+
+    override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
+        setPreferencesFromResource(R.xml.preferences, rootKey)
+        portPreference = findPreference("preference_port")!!
+        sayEndpointPreference = findPreference("preference_enable_say_endpoint")!!
+        waveEndpointPreference = findPreference("preference_enable_wave_endpoint")!!
+        ttsEnginePreference = findPreference("preference_tts")!!
+        ttsEnginePreference.setOnPreferenceClickListener {
+            startActivity(Intent("com.android.settings.TTS_SETTINGS"))
+            true
+        }
+    }
+}

app/src/main/java/io/bartek/service/ForegroundService.kt

@@ -3,24 +3,30 @@ package io.bartek.service
 import android.app.*
 import android.content.Context
 import android.content.Intent
+import android.content.SharedPreferences
 import android.graphics.Color
 import android.os.Binder
 import android.os.Build
 import android.os.IBinder
 import android.os.PowerManager
+import androidx.preference.PreferenceManager
 import io.bartek.MainActivity
 import io.bartek.R
 import io.bartek.web.TTSServer
+import java.lang.Integer.parseInt
 
 
 class ForegroundService : Service() {
-    private var port: Int = 8080
+    private lateinit var preferences: SharedPreferences
     private var wakeLock: PowerManager.WakeLock? = null
     private var isServiceStarted = false
     private var ttsServer: TTSServer? = null
+    private val port: Int
+        get() = parseInt(preferences.getString("preference_port", "8080")!!)
 
     override fun onCreate() {
         super.onCreate()
+        preferences = PreferenceManager.getDefaultSharedPreferences(this)
         startForeground(1, createNotification())
     }
 
@@ -68,10 +74,7 @@ class ForegroundService : Service() {
     override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
         intent?.let {
             when(it.action) {
-                START -> {
-                    port = it.getIntExtra(PORT, port)
-                    startService()
-                }
+                START -> startService()
                 STOP -> stopService()
             }
         }

app/src/main/java/io/bartek/web/WebServer.kt

@@ -3,11 +3,10 @@ package io.bartek.web
 import android.content.Context
 import android.content.Intent
 import android.speech.tts.TextToSpeech
-import android.widget.Toast
 import androidx.localbroadcastmanager.content.LocalBroadcastManager
+import androidx.preference.PreferenceManager
 import fi.iki.elonen.NanoHTTPD
 import fi.iki.elonen.NanoHTTPD.Response.Status.*
-import io.bartek.R
 import io.bartek.service.ServiceState
 import io.bartek.tts.TTS
 import org.json.JSONObject
@@ -18,11 +17,19 @@ private data class TTSRequestData(val text: String, val language: Locale)
 
 class TTSServer(port: Int, private val context: Context) : NanoHTTPD(port),
     TextToSpeech.OnInitListener {
+    private val preferences = PreferenceManager.getDefaultSharedPreferences(context)
     private val tts = TTS(context, this)
 
     override fun serve(session: IHTTPSession?): Response {
         try {
-            return tryToServe(session)
+            session?.let {
+                return when(it.uri) {
+                    "/wave" -> wave(it)
+                    else -> throw ResponseException(NOT_FOUND, "")
+                }
+            }
+
+            throw ResponseException(BAD_REQUEST, "")
         } catch (e: ResponseException) {
             throw e
         } catch (e: Exception) {
@@ -30,18 +37,8 @@ class TTSServer(port: Int, private val context: Context) : NanoHTTPD(port),
         }
     }
 
-    private fun tryToServe(session: IHTTPSession?): Response {
-        val (text, language) = getRequestData(validateRequest(session))
-        val (stream, size) = tts.performTTS(text, language)
-        return newFixedLengthResponse(OK, "audio/x-wav", stream, size)
-    }
-
-    private fun validateRequest(session: IHTTPSession?): IHTTPSession {
-        if (session == null) {
-            throw ResponseException(BAD_REQUEST, "")
-        }
-
-        if (session.uri != "/") {
+    private fun wave(session: IHTTPSession): Response {
+        if(!preferences.getBoolean("preference_enable_wave_endpoint", true)) {
             throw ResponseException(NOT_FOUND, "")
         }
 
@@ -53,8 +50,9 @@ class TTSServer(port: Int, private val context: Context) : NanoHTTPD(port),
             throw ResponseException(BAD_REQUEST, "")
         }
 
-
-        return session
+        val (text, language) = getRequestData(session)
+        val (stream, size) = tts.performTTS(text, language)
+        return newFixedLengthResponse(OK, "audio/x-wav", stream, size)
     }
 
     private fun getRequestData(session: IHTTPSession): TTSRequestData {

app/src/main/res/drawable/ic_settings.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24"
+        android:viewportHeight="24">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M19.1,12.9a2.8,2.8 0,0 0,0.1 -0.9,2.8 2.8,0 0,0 -0.1,-0.9l2.1,-1.6a0.7,0.7 0,0 0,0.1 -0.6L19.4,5.5a0.7,0.7 0,0 0,-0.6 -0.2l-2.4,1a6.5,6.5 0,0 0,-1.6 -0.9l-0.4,-2.6a0.5,0.5 0,0 0,-0.5 -0.4H10.1a0.5,0.5 0,0 0,-0.5 0.4L9.3,5.4a5.6,5.6 0,0 0,-1.7 0.9l-2.4,-1a0.4,0.4 0,0 0,-0.5 0.2l-2,3.4c-0.1,0.2 0,0.4 0.2,0.6l2,1.6a2.8,2.8 0,0 0,-0.1 0.9,2.8 2.8,0 0,0 0.1,0.9L2.8,14.5a0.7,0.7 0,0 0,-0.1 0.6l1.9,3.4a0.7,0.7 0,0 0,0.6 0.2l2.4,-1a6.5,6.5 0,0 0,1.6 0.9l0.4,2.6a0.5,0.5 0,0 0,0.5 0.4h3.8a0.5,0.5 0,0 0,0.5 -0.4l0.3,-2.6a5.6,5.6 0,0 0,1.7 -0.9l2.4,1a0.4,0.4 0,0 0,0.5 -0.2l2,-3.4c0.1,-0.2 0,-0.4 -0.2,-0.6ZM12,15.6A3.6,3.6 0,1 1,15.6 12,3.6 3.6,0 0,1 12,15.6Z"/>
+</vector>

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

@@ -1,30 +1,17 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:app="http://schemas.android.com/apk/res-auto"
+<LinearLayout 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"
-    xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".MainActivity"
-    android:orientation="vertical">
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:orientation="horizontal">
-
-        <Button
-            android:id="@+id/control_server_button"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_weight="2"
-            android:onClick="controlServer"
-            android:text="@string/main_activity_run" />
-    </LinearLayout>
+    android:orientation="vertical"
+    tools:context=".MainActivity">
 
     <Button
-        android:id="@+id/ttsSettings"
+        android:id="@+id/control_server_button"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:onClick="openTTSSettings"
-        android:text="@string/main_activity_tts_settings" />
-</LinearLayout>
+        android:layout_height="0dp"
+        android:layout_weight="2"
+        android:onClick="controlServer"
+        android:text="@string/main_activity_run" />
+</LinearLayout>

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

@@ -0,0 +1,9 @@
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <FrameLayout
+        android:id="@+id/preferences"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+</LinearLayout>

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

@@ -0,0 +1,5 @@
+<?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/open_preferences" android:icon="@drawable/ic_settings" app:showAsAction="always" android:title="Preferences" />
+</menu>

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

@@ -1,12 +1,23 @@
 <resources>
     <string name="app_name">TTS Server</string>
+
+    <string name="main_activity_run">Run</string>
+    <string name="main_activity_stop">Stop</string>
+
     <string name="service_notification_category_name">HTTP Server</string>
     <string name="service_notification_category_description">The fixed notification keeping the HTTP server alive</string>
     <string name="service_notification_title">Server is running</string>
     <string name="service_notification_text">The HTTP server is listening on port %1$d</string>
 
-    <string name="main_activity_server_port">Server port</string>
-    <string name="main_activity_run">Run</string>
-    <string name="main_activity_stop">Stop</string>
-    <string name="main_activity_tts_settings">TTS Settings</string>
+    <string name="title_activity_preferences">Settings</string>
+    <string name="preference_port_summary">The desired port on which HTTP server is intended to listening</string>
+    <string name="preference_port_title">Server port</string>
+    <string name="preference_enable_say_endpoint_summary">Allow HTTP clients to use /say endpoint which enables them to say message using builtin speakers or external ones connected to the device</string>
+    <string name="preference_enable_say_endpoint_title">Enable /say endpoint</string>
+    <string name="preference_enable_wave_endpoint_summary">Allow HTTP clients to use /wave endpoint which enables them to retrieve TTS message as wave file</string>
+    <string name="preference_enable_wave_endpoint_title">Enable /wave endpoint</string>
+    <string name="preference_tts_summary">Go to platform\'s TTS engine settings and adjust its parameters</string>
+    <string name="preference_tts_title">TTS engine settings</string>
+    <string name="preference_category_tts">TTS engine</string>
+    <string name="preference_category_server">Server</string>
 </resources>

app/src/main/res/xml/preferences.xml

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.preference.PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+    <PreferenceCategory android:title="@string/preference_category_server" app:iconSpaceReserved="false">
+        <EditTextPreference
+            android:defaultValue="8080"
+            android:inputType="number"
+            android:key="preference_port"
+            android:summary="@string/preference_port_summary"
+            android:title="@string/preference_port_title"
+            app:iconSpaceReserved="false" />
+
+        <SwitchPreference
+            android:defaultValue="true"
+            android:key="preference_enable_say_endpoint"
+            android:summary="@string/preference_enable_say_endpoint_summary"
+            android:title="@string/preference_enable_say_endpoint_title"
+            app:iconSpaceReserved="false" />
+
+        <SwitchPreference
+            android:defaultValue="true"
+            android:key="preference_enable_wave_endpoint"
+            android:summary="@string/preference_enable_wave_endpoint_summary"
+            android:title="@string/preference_enable_wave_endpoint_title"
+            app:iconSpaceReserved="false" />
+
+    </PreferenceCategory>
+
+    <PreferenceCategory android:title="@string/preference_category_tts" app:iconSpaceReserved="false">
+        <Preference
+            android:key="preference_tts"
+            android:summary="@string/preference_tts_summary"
+            android:title="@string/preference_tts_title"
+            app:iconSpaceReserved="false" />
+    </PreferenceCategory>
+
+
+</androidx.preference.PreferenceScreen>