如何在从广播接收器调用的Activity中创建TextToSpeech对象？

Question

我是android的新手，我正在尝试创建一个呼叫者姓名播音员应用程序。 以下是我的代码。 日志显示代码执行得很好，即TextToSpeech构造函数正在执行并到达onInit方法直到最后，但是，当我对其进行测试时，听不到声音。

这是我的CustomBroadcastReceiver.java：

public class CustomBroadcastReceiver extends BroadcastReceiver {

protected String newSender;

@Override
public void onReceive(Context context, Intent intent) {
    Log.v("", "logger WE ARE INSIDE!!!!!!!!!!!");

     Intent i=new Intent(context,ReceiverActivity.class);

    TelephonyManager telephony = (TelephonyManager) context
            .getSystemService(Context.TELEPHONY_SERVICE);
    CustomPhoneStateListener customPhoneListener = new    CustomPhoneStateListener();

    telephony.listen(customPhoneListener,
            PhoneStateListener.LISTEN_CALL_STATE);

    Bundle bundle = intent.getExtras();
    String phoneNr = bundle.getString("incoming_number");
    Log.v("", "logger phoneNr: " + phoneNr);

    Uri uri = Uri.withAppendedPath(PhoneLookup.CONTENT_FILTER_URI,
            Uri.encode(phoneNr));
    Cursor cursor = context.getContentResolver().query(uri,
            new String[] { PhoneLookup.DISPLAY_NAME }, phoneNr, null, null);
    if (cursor.moveToFirst()) {
        newSender = cursor.getString(cursor
                .getColumnIndex(ContactsContract.PhoneLookup.DISPLAY_NAME));


    }
    i.putExtra("ID", newSender);
    Log.d("","logger intent" + i.getStringExtra("ID"));
    i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    context.startActivity(i);
    cursor.close();

}

}

这是ReceiverActivity.java

public class ReceiverActivity extends Activity implements TextToSpeech.OnInitListener{

String name;
private TextToSpeech tts;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_receiver);
    Log.d("","logger reached ReceiverActivity");
    tts = new TextToSpeech(this, this);
    Log.d("","logger created tts object");
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.receiver, menu);
    return true;
}

@Override
public void onInit(int status) {
    Log.d("","logger reached onInit");
    if (status == TextToSpeech.SUCCESS) {

        int result = tts.setLanguage(Locale.US); // java.Util.Locale for
                                                    // country codes

        if (result == TextToSpeech.LANG_MISSING_DATA
                || result == TextToSpeech.LANG_NOT_SUPPORTED) {
            Log.e("TTS", "This Language is not supported");
        } else {
            speakOut();
        }
    } else {
        Log.e("TTS", "Initilization Failed!");
    }

}

private void speakOut() {

    tts.speak(name, TextToSpeech.QUEUE_FLUSH, null);
    Log.d("","logger speak executed");
}

}

你能告诉我我要去哪里错吗？

Answer 1

首先，在您的活动类中初始化Text-To-Speech对象，然后使用string参数创建静态方法，该参数包含Text-To-Speech的语音方法。

并使用您要声明的字符串从您的broadcastreceiver调用此静态方法。

public static void speakOut(String message) {

    System.out.println("Message is: " + message);

    tts.speak(message, TextToSpeech.QUEUE_ADD, null);

}