【发布时间】：2019-06-11 13:06:50
【问题描述】：
所以，我正在创建一个 AI 音乐播放器应用。一切似乎都很好，但是每当我给它一些语音命令时，它都不会显示所需的消息。
我尝试过使用不同的模拟器和不同的安卓版本。这些都不起作用。
package com.learning.intelligentmusicplayer;
import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.provider.Settings;
import android.speech.RecognitionListener;
import android.speech.RecognizerIntent;
import android.speech.SpeechRecognizer;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.view.MotionEvent;
import android.view.View;
import android.widget.RelativeLayout;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.Locale;
public class MainActivity extends AppCompatActivity {
private RelativeLayout parentRelativeLayout;
private SpeechRecognizer speechRecognizer;
private Intent speechRecogniserIntent;
private String keeper="";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
checkVoiceCommandPermission();
parentRelativeLayout = findViewById(R.id.parentRelativeLayout);
speechRecognizer = SpeechRecognizer.createSpeechRecognizer(MainActivity.this);
speechRecogniserIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
speechRecogniserIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM );
speechRecogniserIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());
speechRecognizer.setRecognitionListener(new RecognitionListener() {
@Override
public void onReadyForSpeech(Bundle bundle) {
}
@Override
public void onBeginningOfSpeech() {
}
@Override
public void onRmsChanged(float v) {
}
@Override
public void onBufferReceived(byte[] bytes) {
}
@Override
public void onEndOfSpeech() {
}
@Override
public void onError(int i) {
}
@Override
public void onResults(Bundle bundle) {
ArrayList<String> matchesFound = bundle.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
if(matchesFound!=null)
{
keeper = matchesFound.get(0);
Toast.makeText(MainActivity.this, "Result = "+keeper, Toast.LENGTH_LONG).show();
}
}
@Override
public void onPartialResults(Bundle bundle) {
}
@Override
public void onEvent(int i, Bundle bundle) {
}
});
parentRelativeLayout.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View view, MotionEvent motionEvent) {
switch(motionEvent.getAction())
{
case MotionEvent.ACTION_DOWN:
speechRecognizer.startListening(speechRecogniserIntent);
keeper="";
break;
case MotionEvent.ACTION_UP:
speechRecognizer.stopListening();
break;
}
return false;
}
});
}
private void checkVoiceCommandPermission()
{
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
{
if(!(ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.RECORD_AUDIO)==PackageManager.PERMISSION_GRANTED))
{
Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS, Uri.parse("package: "+getPackageName()));
startActivity(intent);
finish();
}
}
}
}
没有错误信息。我听到录制消息的哔声，但它没有在屏幕上显示消息。
【问题讨论】：