📅  最后修改于: 2020-10-10 01:35:20             🧑  作者: Mango
TextToSpeech类负责将文本转换为语音。它提供了许多控制语音的方法,例如setSpeedRate(),setPitch()等。
在此示例中,我们将看到带有速度和音高选项的android texttospeech示例。
拖动2个文本视图,1个编辑文本,1个微调器和1个布局按钮。现在,activity_main.xml文件将如下所示:
让我们看看说出给定文本的代码。
package com.example.texttospeechspeed;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import android.speech.tts.TextToSpeech;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.Toast;
public class MainActivity extends Activity implements
TextToSpeech.OnInitListener,OnItemSelectedListener {
/** Called when the activity is first created. */
private TextToSpeech tts;
private Button buttonSpeak;
private EditText editText;
private Spinner speedSpinner,pitchSpinner;
private static String speed="Normal";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tts = new TextToSpeech(this, this);
buttonSpeak = (Button) findViewById(R.id.button1);
editText = (EditText) findViewById(R.id.editText1);
speedSpinner = (Spinner) findViewById(R.id.spinner1);
//load data in spinner
loadSpinnerData();
speedSpinner.setOnItemSelectedListener(this);
//button click event
buttonSpeak.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
setSpeed();
speakOut();
}
});
}
@Override
public void onInit(int status) {
if (status == TextToSpeech.SUCCESS) {
int result = tts.setLanguage(Locale.US);
if (result == TextToSpeech.LANG_MISSING_DATA
|| result == TextToSpeech.LANG_NOT_SUPPORTED) {
Log.e("TTS", "This Language is not supported");
} else {
buttonSpeak.setEnabled(true);
speakOut();
}
} else { Log.e("TTS", "Initilization Failed!");}
}
@Override
public void onDestroy() {
// Don't forget to shutdown tts!
if (tts != null) {
tts.stop();
tts.shutdown();
}
super.onDestroy();
}
private void setSpeed(){
if(speed.equals("Very Slow")){
tts.setSpeechRate(0.1f);
}
if(speed.equals("Slow")){
tts.setSpeechRate(0.5f);
}
if(speed.equals("Normal")){
tts.setSpeechRate(1.0f);//default 1.0
}
if(speed.equals("Fast")){
tts.setSpeechRate(1.5f);
}
if(speed.equals("Very Fast")){
tts.setSpeechRate(2.0f);
}
//for setting pitch you may call
//tts.setPitch(1.0f);//default 1.0
}
private void speakOut() {
String text = editText.getText().toString();
tts.speak(text, TextToSpeech.QUEUE_FLUSH, null);
}
private void loadSpinnerData() {
//Data for speed Spinner
List lables = new ArrayList();
lables.add("Very Slow");
lables.add("Slow");
lables.add("Normal");
lables.add("Fast");
lables.add("Very Fast");
// Creating adapter for spinner
ArrayAdapter dataAdapter = new ArrayAdapter(this,android.R.layout.simple_spinner_item, lables);
// Drop down layout style - list view with radio button
dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// attaching data adapter to spinner
speedSpinner.setAdapter(dataAdapter);
}
@Override
public void onItemSelected(AdapterView> parent, View view, int position,
long id) {
// On selecting a spinner item
speed = parent.getItemAtPosition(position).toString();
Toast.makeText(parent.getContext(), "You selected: " + speed,
Toast.LENGTH_LONG).show();
}
@Override
public void onNothingSelected(AdapterView> arg0) {
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}
您需要在真实设备(例如移动设备)上运行它以测试应用程序。