我怎样才能在文字转语音结束后完成Android演讲

Question

在文本到语音结束后,我怎样才能干杯说话.实际上我想做的不仅仅是Log.这是我的代码.

public class MainActivity extends AppCompatActivity implements TextToSpeech.OnInitListener, TextToSpeech.OnUtteranceCompletedListener {

    private TextToSpeech mTts;
    Button btnSpeak;
    EditText editTextTTS;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mTts = new TextToSpeech(this,this);
        editTextTTS =(EditText)findViewById(R.id.editText);
        btnSpeak = (Button)findViewById(R.id.btnSpeakTest);
        btnSpeak.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                speak(editTextTTS.getText().toString());
            }
        });




    }
    private void speak(String word){
        if(word != null) {
            HashMap<String, String> myHashAlarm = new HashMap<String, String>();
            myHashAlarm.put(TextToSpeech.Engine.KEY_PARAM_STREAM, String.valueOf(AudioManager.STREAM_ALARM));
            myHashAlarm.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID, "Hello");
            mTts.speak(word, TextToSpeech.QUEUE_FLUSH, myHashAlarm);
        }
    }

    @Override
    public void onInit(int status) {
        if(status == TextToSpeech.SUCCESS) {
            mTts.setOnUtteranceCompletedListener(this);
        }
    }

    @Override
    public void onUtteranceCompleted(String utteranceId) {
        Log.i("CALLBACK", utteranceId); //utteranceId == "SOME MESSAGE"
        Toast.makeText(getApplicationContext(),"Call Back",Toast.LENGTH_LONG).show();// I Cannot Toast here. Or do something more than Log
    }

实际上,我希望在文本到语音结束之后将语音称为文本.如何在这种方法中做点什么.

03-14 14:35:16.652 5473-5489/com.example.thummawit.testttscallback I/CALLBACK:Hello 03-14 14:35:16.667 5473-5489/com.example.thummawit.testttscallback W/Binder:捕获到RuntimeException来自binder stub实现.java.lang.RuntimeException:无法在android.os.Handler的android.os.Handler.(Handler.java:200)中调用未调用Looper.prepare()的线程内的处理程序.(Handler.java:114)在android.widget.Toast $ TN.(Toast.java:459)的android.widget.Toast.(Toast.java:120)在android.widget.Toast.makeText(Toast.java:289)的com.example. android.speech.tts.TextToSpeech上的android.speech.tts.UtteranceProgressListener $ 1.onDone(UtteranceProgressListener.java:73)中的thummawit.testttscallback.MainActivity.onUtteranceCompleted(MainActivity.java:59)$ Connection $ 1.onSuccess(TextToSpeech.java: 2158)在android.os.Binder.execTransact(Binder.java:446)的android.speech.tts.ITextToSpeechCallback $ Stub.onTransact(ITextToSpeechCallback.java:63)

Answer 1

您尝试Toast在不是UI(主)线程的线程中显示a .你应该改变这个

@Override
public void onUtteranceCompleted(String utteranceId) {
    Log.i("CALLBACK", utteranceId); //utteranceId == "SOME MESSAGE"
    Toast.makeText(getApplicationContext(),"Call     Back",Toast.LENGTH_LONG).show();// I Cannot Toast here. Or do something more than Log
}

进入这个

@Override
public void onUtteranceCompleted(String utteranceId) {
    Log.i("CALLBACK", utteranceId); //utteranceId == "SOME MESSAGE"

    runOnUiThread(new Runnable() {

        public void run() {
            Toast.makeText(getApplicationContext(),"Call Back",Toast.LENGTH_LONG).show();
        }
    });
}

这样,您的代码将被分派到允许您显示Toasts 的主线程