TextToSpeech API demo.
diff --git a/samples/ApiDemos/AndroidManifest.xml b/samples/ApiDemos/AndroidManifest.xml
index aba330a..a6eff96 100644
--- a/samples/ApiDemos/AndroidManifest.xml
+++ b/samples/ApiDemos/AndroidManifest.xml
@@ -543,6 +543,15 @@
</intent-filter>
</activity>
+ <!-- Text-To-Speech Samples -->
+
+ <activity android:name=".app.TextToSpeechActivity" android:label="@string/text_to_speech">
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN" />
+ <category android:name="android.intent.category.SAMPLE_CODE" />
+ </intent-filter>
+ </activity>
+
<!-- ************************************* -->
<!-- CONTENT PACKAGE SAMPLES -->
<!-- ************************************* -->
diff --git a/samples/ApiDemos/res/layout/text_to_speech.xml b/samples/ApiDemos/res/layout/text_to_speech.xml
new file mode 100644
index 0000000..0ba60e1
--- /dev/null
+++ b/samples/ApiDemos/res/layout/text_to_speech.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2009 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ android:orientation="vertical"
+ android:layout_width="fill_parent"
+ android:layout_height="fill_parent"
+ >
+ <Button android:id="@+id/again_button"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:enabled="false"
+ android:text="@string/again" />
+</LinearLayout>
diff --git a/samples/ApiDemos/res/values/strings.xml b/samples/ApiDemos/res/values/strings.xml
index 6f91b34..b19504b 100644
--- a/samples/ApiDemos/res/values/strings.xml
+++ b/samples/ApiDemos/res/values/strings.xml
@@ -221,6 +221,9 @@
<string name="voice_recognition">App/Voice Recognition</string>
+ <string name="text_to_speech">App/Text-To-Speech</string>
+ <string name="again">Again</string>
+
<!-- ============================== -->
<!-- app/content examples strings -->
<!-- ============================== -->
diff --git a/samples/ApiDemos/src/com/example/android/apis/app/TextToSpeechActivity.java b/samples/ApiDemos/src/com/example/android/apis/app/TextToSpeechActivity.java
new file mode 100644
index 0000000..a693e80
--- /dev/null
+++ b/samples/ApiDemos/src/com/example/android/apis/app/TextToSpeechActivity.java
@@ -0,0 +1,136 @@
+ /*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.apis.app;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.speech.tts.TextToSpeech;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
+
+import com.example.android.apis.R;
+
+import java.util.Locale;
+import java.util.Random;
+
+/**
+ * <p>Demonstrates text-to-speech (TTS). Please note the following steps:</p>
+ *
+ * <ol>
+ * <li>Construct the TextToSpeech object.</li>
+ * <li>Handle initialization callback in the onInit method.
+ * The activity implements TextToSpeech.OnInitListener for this purpose.</li>
+ * <li>Call TextToSpeech.speak to synthesize speech.</li>
+ * <li>Shutdown TextToSpeech in onDestroy.</li>
+ * </ol>
+ *
+ * <p>Documentation:
+ * http://developer.android.com/reference/android/speech/tts/package-summary.html
+ * </p>
+ * <ul>
+ */
+public class TextToSpeechActivity extends Activity implements TextToSpeech.OnInitListener {
+
+ private static final String TAG = "TextToSpeechDemo";
+
+ private TextToSpeech mTts;
+ private Button mAgainButton;
+
+ @Override
+ public void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.text_to_speech);
+
+ // Initialize text-to-speech. This is an asynchronous operation.
+ // The OnInitListener (second argument) is called after initialization completes.
+ mTts = new TextToSpeech(this,
+ this // TextToSpeech.OnInitListener
+ );
+
+ // The button is disabled in the layout.
+ // It will be enabled upon initialization of the TTS engine.
+ mAgainButton = (Button) findViewById(R.id.again_button);
+
+ mAgainButton.setOnClickListener(new View.OnClickListener() {
+ public void onClick(View v) {
+ sayHello();
+ }
+ });
+ }
+
+ @Override
+ public void onDestroy() {
+ // Don't forget to shutdown!
+ if (mTts != null) {
+ mTts.stop();
+ mTts.shutdown();
+ }
+
+ super.onDestroy();
+ }
+
+ // Implements TextToSpeech.OnInitListener.
+ public void onInit(int status) {
+ // status can be either TextToSpeech.SUCCESS or TextToSpeech.ERROR.
+ if (status == TextToSpeech.SUCCESS) {
+ // Set preferred language to US english.
+ // Note that a language may not be available, and the result will indicate this.
+ int result = mTts.setLanguage(Locale.US);
+ // Try this someday for some interesting results.
+ // int result mTts.setLanguage(Locale.FRANCE);
+ if (result == TextToSpeech.LANG_MISSING_DATA ||
+ result == TextToSpeech.LANG_NOT_SUPPORTED) {
+ // Lanuage data is missing or the language is not supported.
+ Log.e(TAG, "Language is not available.");
+ } else {
+ // Check the documentation for other possible result codes.
+ // For example, the language may be available for the locale,
+ // but not for the specified country and variant.
+
+ // The TTS engine has been successfully initialized.
+ // Allow the user to press the button for the app to speak again.
+ mAgainButton.setEnabled(true);
+ // Greet the user.
+ sayHello();
+ }
+ } else {
+ // Initialization failed.
+ Log.e(TAG, "Could not initialize TextToSpeech.");
+ }
+ }
+
+ private static final Random RANDOM = new Random();
+ private static final String[] HELLOS = {
+ "Hello",
+ "Salutations",
+ "Greetings",
+ "Howdy",
+ "What's crack-a-lackin?",
+ "That explains the stench!"
+ };
+
+ private void sayHello() {
+ // Select a random hello.
+ int helloLength = HELLOS.length;
+ String hello = HELLOS[RANDOM.nextInt(helloLength)];
+ mTts.speak(hello,
+ TextToSpeech.QUEUE_FLUSH, // Drop all pending entries in the playback queue.
+ null);
+ }
+
+}