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Android初学者之轻松实现语音识别

發布時間：2025/7/25 Android 28 豆豆

生活随笔收集整理的這篇文章主要介紹了 Android初学者之轻松实现语音识别小編覺得挺不錯的,現在分享給大家,幫大家做個參考.

Android初學者之輕松實現語音識別

蘋果的iphone有語音識別用的是Google的技術，做為Google力推的Android 自然會將其核心技術往Android 系統里面植入，并結合google 的云端技術將其發揚光大。?

所以Google Voice Recognition在Android 的實現就變得極其輕松。?

語音識別，借助于云端技術可以識別用戶的語音輸入，包括語音控制等技術，下面我們將利用Google 提供的Api 實現這一功能。?

功能點為：通過用戶語音將用戶輸入的語音識別出來，并打印在列表上。?

001	* Copyright (C) 2008 The Android Open Source Project

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005	* Licensed under the Apache License, Version 2.0 (the "License");

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007	* you may not use this file except in compliance with the License.

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009	* You may obtain a copy of the License at

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013	* <a href="http://www.apache.org/licenses/LICENSE-2.0" rel="nofollow" target="_blank">http://www.apache.org/licenses/LICENSE-2.0</a>

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017	* Unless required by applicable law or agreed to in writing, software

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019	* distributed under the License is distributed on an "AS IS" BASIS,

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021	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

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023	* See the License for the specific language governing permissions and

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025	* limitations under the License.

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029

030

031	package com.example.android.apis.app;

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035	import com.example.android.apis.R;

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037

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039	import android.app.Activity;

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041	import android.content.Intent;

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043	import android.content.pm.PackageManager;

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045	import android.content.pm.ResolveInfo;

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047	import android.os.Bundle;

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049	import android.speech.RecognizerIntent;

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051	import android.view.View;

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053	import android.view.View.OnClickListener;

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055	import android.widget.ArrayAdapter;

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057	import android.widget.Button;

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059	import android.widget.ListView;

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061

062

063	import java.util.ArrayList;

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065	import java.util.List;

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/**

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071	* Sample code that invokes the speech recognition intent API.

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075	public class VoiceRecognition extends Activity implements OnClickListener {

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079	private static final int VOICE_RECOGNITION_REQUEST_CODE = 1234;

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083	private ListView mList;

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/**

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089	* Called with the activity is first created.

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@Override

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095	public void onCreate(Bundle savedInstanceState) {

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097	super.onCreate(savedInstanceState);

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101	// Inflate our UI from its XML layout description.

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103	setContentView(R.layout.voice_recognition);

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107	// Get display items for later interaction

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109	Button speakButton = (Button) findViewById(R.id.btn_speak);

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113	mList = (ListView) findViewById(R.id.list);

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117	// Check to see if a recognition activity is present

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119	PackageManager pm = getPackageManager();

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121	List activities = pm.queryIntentActivities(

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123	new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH), 0);

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125	if (activities.size() != 0) {

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127	speakButton.setOnClickListener(this);

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} else {

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131	speakButton.setEnabled(false);

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133	speakButton.setText("Recognizer not present");

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}

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}

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/**

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143	* Handle the click on the start recognition button.

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147	public void onClick(View v) {

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149	if (v.getId() == R.id.btn_speak) {

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151	startVoiceRecognitionActivity();

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}

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}

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/**

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161	* Fire an intent to start the speech recognition activity.

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165	private void startVoiceRecognitionActivity() {

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167	Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);

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169	intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,

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171	RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);

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173	intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Speech recognition demo");

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175	startActivityForResult(intent, VOICE_RECOGNITION_REQUEST_CODE);

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}

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/**

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183	* Handle the results from the recognition activity.

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@Override

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189	protected void onActivityResult(int requestCode, int resultCode, Intent data) {

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191	if (requestCode == VOICE_RECOGNITION_REQUEST_CODE && resultCode == RESULT_OK) {

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193	// Fill the list view with the strings the recognizer thought it could have heard

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195	ArrayList matches = data.getStringArrayListExtra(

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197	RecognizerIntent.EXTRA_RESULTS);

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199	mList.setAdapter(new ArrayAdapter(this, android.R.layout.simple_list_item_1,

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201	matches));

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}

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207	super.onActivityResult(requestCode, resultCode, data);

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}

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}

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