/*
* 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 app.test;
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 java.util.Locale;
import java.util.Random;
/**
* Demonstrates text-to-speech (TTS). Please note the following steps:
*
*
* - Construct the TextToSpeech object.
* - Handle initialization callback in the onInit method.
* The activity implements TextToSpeech.OnInitListener for this purpose.
* - Call TextToSpeech.speak to synthesize speech.
* - Shutdown TextToSpeech in onDestroy.
*
*
* Documentation:
* http://developer.android.com/reference/android/speech/tts/package-summary.html
*
*
*/
public class Test 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.main);
// 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);
}
}
//main.xml
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:enabled="false"
android:text="again" />