苹果的iphone 有语音识别用的是google 的技术，做为google 力推的android 自然会将其核心技术往android 系统里面植入，并结合google 的云端技术将其发扬光大。 所以google voice recognition在android 的实现就变得极其轻松。
语音识别，借助于云端技术可以识别用户的语音输入，包括语音控制等技术，下面我们将利用google 提供的api 实现这一功能。 功能点为：通过用户语音将用户输入的语音识别出来，并打印在列表上。 功能界面如下：
用户通过点击speak按钮显示界面：
用户说完话后，将提交到云端搜索：
在云端搜索完成后，返回打印数据：
|
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
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
* copyright (c) 2008 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 com.example.android.apis.r; import android.app.activity;import android.content.intent;import android.content.pm.packagemanager;import android.content.pm.resolveinfo;import android.os.bundle;import android.speech.recognizerintent;import android.view.view;import android.view.view.onclicklistener;import android.widget.arrayadapter;import android.widget.button;import android.widget.listview; import java.util.arraylist;import java.util.list; /*** sample code that invokes the speech recognition intent api.*/public class voicerecognition extends activity implements onclicklistener { private static final int voice_recognition_request_code = 1234; private listview mlist; /*** called with the activity is first created.*/@overridepublic void oncreate(bundle savedinstancestate) {super.oncreate(savedinstancestate); // inflate our ui from its xml layout description.setcontentview(r.layout.voice_recognition); // get display items for later interactionbutton speakbutton = (button) findviewbyid(r.id.btn_speak); mlist = (listview) findviewbyid(r.id.list); // check to see if a recognition activity is presentpackagemanager pm = getpackagemanager();list activities = pm.queryintentactivities(new intent(recognizerintent.action_recognize_speech), 0);if (activities.size() != 0) {speakbutton.setonclicklistener(this);} else {speakbutton.setenabled(false);speakbutton.settext("recognizer not present");}} /*** handle the click on the start recognition button.*/public void onclick(view v) {if (v.getid() == r.id.btn_speak) {startvoicerecognitionactivity();}} /*** fire an intent to start the speech recognition activity.*/private void startvoicerecognitionactivity() {intent intent = new intent(recognizerintent.action_recognize_speech);intent.putextra(recognizerintent.extra_language_model,recognizerintent.language_model_free_form);intent.putextra(recognizerintent.extra_prompt, "speech recognition demo");startactivityforresult(intent, voice_recognition_request_code);} /*** handle the results from the recognition activity.*/@overrideprotected void onactivityresult(int requestcode, int resultcode, intent data) {if (requestcode == voice_recognition_request_code && resultcode == result_ok) {// fill the list view with the strings the recognizer thought it could have heardarraylist matches = data.getstringarraylistextra(recognizerintent.extra_results);mlist.setadapter(new arrayadapter(this, android.r.layout.simple_list_item_1,matches));} super.onactivityresult(requestcode, resultcode, data);}} |
以上所述就是本文的全部内容了，希望大家能够喜欢。
