Fix updating the number of installed voices after installing them within the activity.

android/src/com/reecedunn/espeak/SpeechSynthesis.java

@@ -60,6 +60,7 @@ public class SpeechSynthesis {
     private final String mDatapath;
 
     private boolean mInitialized = false;
+    private static int mVoiceCount = 0;
 
     public SpeechSynthesis(Context context, SynthReadyCallback callback) {
         // First, ensure the data directory exists, otherwise init will crash.
@@ -86,6 +87,10 @@ public class SpeechSynthesis {
         return nativeGetVersion();
     }
 
+    public static int getVoiceCount() {
+        return mVoiceCount;
+    }
+
     public int getSampleRate() {
         return nativeGetSampleRate();
     }
@@ -107,6 +112,7 @@ public class SpeechSynthesis {
     public List<Voice> getAvailableVoices() {
         final List<Voice> voices = new LinkedList<Voice>();
         final String[] results = nativeGetAvailableVoices();
+        mVoiceCount = results.length / 4;
 
         for (int i = 0; i < results.length; i += 4) {
             final String name = results[i];

android/src/com/reecedunn/espeak/TtsService.java

@@ -51,6 +51,8 @@ import java.util.Locale;
  */
 @SuppressLint("NewApi")
 public class TtsService extends TextToSpeechService {
+    public static final String ESPEAK_INITIALIZED = "com.reecedunn.espeak.ESPEAK_INITIALIZED";
+
     private static final String TAG = TtsService.class.getSimpleName();
     private static final boolean DEBUG = false;
 
@@ -95,6 +97,9 @@ public class TtsService extends TextToSpeechService {
 
         mEngine = new SpeechSynthesis(this, mSynthCallback);
         mAvailableVoices = mEngine.getAvailableVoices();
+
+        final Intent intent = new Intent(ESPEAK_INITIALIZED);
+        sendBroadcast(intent);
     }
 
     @Override

android/src/com/reecedunn/espeak/eSpeakActivity.java

@@ -18,7 +18,10 @@
 package com.reecedunn.espeak;
 
 import android.app.Activity;
+import android.content.BroadcastReceiver;
+import android.content.Context;
 import android.content.Intent;
+import android.content.IntentFilter;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
@@ -58,12 +61,18 @@ public class eSpeakActivity extends Activity {
     }
 
     private State mState;
-    private ArrayList<String> mVoices;
     private TextToSpeech mTts;
     private List<Pair<String,String>> mInformation;
     private InformationListAdapter mInformationView;
     private EditText mText;
 
+    private final BroadcastReceiver mOnEspeakInitialized = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            populateInformationView();
+        }
+    };
+
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -75,6 +84,9 @@ public class eSpeakActivity extends Activity {
         ((ListView)findViewById(R.id.properties)).setAdapter(mInformationView);
         mText = (EditText)findViewById(R.id.editText1);
 
+        final IntentFilter filter = new IntentFilter(TtsService.ESPEAK_INITIALIZED);
+        registerReceiver(mOnEspeakInitialized, filter);
+
         setState(State.LOADING);
         checkVoiceData();
 
@@ -102,6 +114,8 @@ public class eSpeakActivity extends Activity {
     public void onStop() {
         super.onStop();
 
+        unregisterReceiver(mOnEspeakInitialized);
+
         if (mTts != null) {
             mTts.shutdown();
         }
@@ -182,11 +196,7 @@ public class eSpeakActivity extends Activity {
         }
 
         final String availableVoices = getString(R.string.available_voices);
-        if (mVoices == null) {
-            mInformation.add(new Pair<String,String>(availableVoices, "0"));
-        } else {
-            mInformation.add(new Pair<String,String>(availableVoices, Integer.toString(mVoices.size())));
-        }
+        mInformation.add(new Pair<String,String>(availableVoices, Integer.toString(SpeechSynthesis.getVoiceCount())));
 
         final String version = getString(R.string.tts_version);
         mInformation.add(new Pair<String,String>(version, SpeechSynthesis.getVersion()));
@@ -227,12 +237,9 @@ public class eSpeakActivity extends Activity {
         if (resultCode != TextToSpeech.Engine.CHECK_VOICE_DATA_PASS) {
             Log.e(TAG, "Voice data check failed (error code: " + resultCode + ").");
             setState(State.ERROR);
-        } else {
-            mVoices = data.getStringArrayListExtra(TextToSpeech.Engine.EXTRA_AVAILABLE_VOICES);
         }
 
         initializeEngine();
-        populateInformationView();
     }
 
     /**