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android - 如何在 IntentService 中运行 Android TTS

转载 作者:行者123 更新时间:2023-11-29 00:28:05 35 4
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我查看了几个线程,询问有关从服务运行 TTS 的问题(抱歉,不记得是哪些线程了),但它们都没有帮助。

IntentService 启动得很好,但它在 onInit() 运行之前被销毁,我认为这是导致此 logcat 的原因:

    07-28 18:58:24.716    2305-2305/me.arthurtucker.alfredjr D/MainActivity: onPrefChange
07-28 18:58:24.786 2305-2305/me.arthurtucker.alfredjr D/MainActivity: made new intent
07-28 18:58:24.794 2305-2305/me.arthurtucker.alfredjr D/MainActivity: started service
07-28 18:58:25.044 2305-2305/me.arthurtucker.alfredjr I/SpeachService: onCreate() ran
07-28 18:58:25.255 2305-2573/me.arthurtucker.alfredjr I/TextToSpeech: Sucessfully bound to com.google.android.tts
07-28 18:58:25.255 2305-2573/me.arthurtucker.alfredjr I/SpeachService: onHandleIntent ran
07-28 18:58:25.255 2305-2305/me.arthurtucker.alfredjr W/TextToSpeech: stop failed: not bound to TTS engine
07-28 18:58:25.255 2305-2305/me.arthurtucker.alfredjr W/TextToSpeech: shutdown failed: not bound to TTS engine
07-28 18:58:25.255 2305-2305/me.arthurtucker.alfredjr I/SpeachService: onDestroy() ran
07-28 18:58:25.286 2305-2305/me.arthurtucker.alfredjr E/ActivityThread: Service me.arthurtucker.alfredjr.SpeechService has leaked ServiceConnection android.speech.tts.TextToSpeech$Connection@37ad3e10 that was originally bound here
android.app.ServiceConnectionLeaked: Service me.arthurtucker.alfredjr.SpeechService has leaked ServiceConnection android.speech.tts.TextToSpeech$Connection@37ad3e10 that was originally bound here
at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969)
at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863)
at android.app.ContextImpl.bindService(ContextImpl.java:1437)
at android.app.ContextImpl.bindService(ContextImpl.java:1426)
at android.content.ContextWrapper.bindService(ContextWrapper.java:473)
at android.speech.tts.TextToSpeech.connectToEngine(TextToSpeech.java:627)
at android.speech.tts.TextToSpeech.initTts(TextToSpeech.java:597)
at android.speech.tts.TextToSpeech.<init>(TextToSpeech.java:553)
at android.speech.tts.TextToSpeech.<init>(TextToSpeech.java:527)
at android.speech.tts.TextToSpeech.<init>(TextToSpeech.java:512)
at me.arthurtucker.alfredjr.SpeechService.onHandleIntent(SpeechService.java:37)
at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:65)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.os.HandlerThread.run(HandlerThread.java:60)

我试过在 onCreate()、onHandleIntent() 和现在的 onInit() 中运行 sayString()。在 onCreate() 或 onHandleIntent() 中时,logcat 会报告类似以下内容:“说话失败:未绑定(bind)到 tts 引擎”。

有没有办法让 IntentService 在销毁之前等待 onInit() 运行?

我的代码如下。

    public class SpeechService extends IntentService implements TextToSpeech.OnInitListener, TextToSpeech.OnUtteranceCompletedListener {
private static TextToSpeech myTTS;
private Main mActivity;
private static final String TAG = "SpeachService";
//private String msg;

public SpeechService() {
super("SpeechService");
}

@Override
public void onCreate() {
mActivity = new Main();
super.onCreate();
Log.i(TAG, "onCreate() ran");
}

@Override
protected void onHandleIntent(Intent intent) {
Intent checkTTSIntent = new Intent();
checkTTSIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);
myTTS = new TextToSpeech(this, this);
//String msg = intent.getStringExtra("imsg");
Log.i(TAG, "onHandleIntent ran");
}

public void sayString(String string) {
if (myTTS != null) {
if (mActivity.mEnabled) {
HashMap<String, String> hashMap = new HashMap<String, String>();
hashMap.put(TextToSpeech.Engine.KEY_FEATURE_NETWORK_SYNTHESIS, "true");
myTTS.speak(string, 1, hashMap);
} else {
myTTS.speak(string, 1, null);
}
}

Log.i(TAG, "sayString() ran");
}

@Override
public void onDestroy() {
// TODO Auto-generated method stub
if (myTTS != null) {
myTTS.stop();
myTTS.shutdown();
}
super.onDestroy();
Log.i(TAG, "onDestroy() ran");
}

@Override
public void onInit(int initStatus) {
if (initStatus == TextToSpeech.SUCCESS) {
if (myTTS.isLanguageAvailable(Locale.UK) == TextToSpeech.LANG_AVAILABLE) {
myTTS.setLanguage(Locale.UK);
}
sayString("IT WORKS");
} else if (initStatus == TextToSpeech.ERROR) {
mActivity.makeToast("Failed to start Text-to-Speech Service", true);
}
Log.i(TAG, "onInit() ran");
}

@Override
public void onUtteranceCompleted(String s) {
stopSelf();
Log.i(TAG, "onUtteranceCompleted() ran");
}
}

我愿意尝试一些完全不同的方法,只要它能做类似的事情。

最佳答案

您没有明确调用 onInit()IntentService 在调用 onHandleIntent 方法后被销毁。确保在 onHandleIntent 方法中完成所有工作。

文档中的

onHandleIntent(Intent intent):

此方法在工作线程上调用以处理请求。一次只处理一个 Intent,但处理发生在独立于其他应用程序逻辑运行的工作线程上。因此,如果此代码需要很长时间,它将阻止对同一 IntentService 的其他请求,但不会阻止其他任何请求。处理完所有请求后,IntentService 会自行停止,因此您不应调用 stopSelf()。

关于android - 如何在 IntentService 中运行 Android TTS,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/17914661/

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