-
Notifications
You must be signed in to change notification settings - Fork 134
/
VoiceAssistant.java
70 lines (57 loc) · 2.31 KB
/
VoiceAssistant.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
/*
* Copyright (C) 2019-2021 HERE Europe B.V.
*
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* License-Filename: LICENSE
*/
package com.here.navigation;
import android.content.Context;
import android.os.Bundle;
import android.speech.tts.TextToSpeech;
import android.util.Log;
import java.util.Locale;
import static android.speech.tts.TextToSpeech.LANG_AVAILABLE;
// A simple class that uses Android's TextToSpeech engine to speak texts.
public class VoiceAssistant {
private static final String TAG = VoiceAssistant.class.getName();
private final TextToSpeech textToSpeech;
private String utteranceId;
private int messageId;
public VoiceAssistant(Context context) {
textToSpeech = new TextToSpeech(context.getApplicationContext(), status -> {
if (status == TextToSpeech.ERROR) {
throw new RuntimeException("Initialization of Android's TextToSpeech failed: " + status);
}
});
}
public boolean isLanguageAvailable(Locale locale) {
return textToSpeech.isLanguageAvailable(locale) == LANG_AVAILABLE;
}
public boolean setLanguage(Locale locale) {
boolean isLanguageSet = textToSpeech.setLanguage(locale) == LANG_AVAILABLE;
return isLanguageSet;
}
public void speak(String speechMessage) {
Log.d(TAG, "Voice message: " + speechMessage);
// No engine specific params used for this example.
Bundle engineParams = null;
utteranceId = TAG + messageId++;
// QUEUE_FLUSH interrupts already speaking messages.
int error = textToSpeech.speak(speechMessage, TextToSpeech.QUEUE_FLUSH, engineParams, utteranceId);
if (error != -1) {
Log.e(TAG, "Error when speaking using Android's TextToSpeech: " + error);
}
}
}