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    【已解决】rcsjta项目编译出错：TextToSpeech中的speak(String,int,HashMap)已过时

    编译 crifan 926浏览 0评论
    折腾：
    【未解决】Android Studio中gradle编译rcjsta项目多个使用或覆盖了已过时的API等报错
    期间，继续解决其他的问题
    rcsjta/samples/api/tts/src/com/orangelabs/rcs/tts/PlayTextToSpeech.java:98: 警告: [deprecation] TextToSpeech中的speak(String,int,HashMap<String,String>)已过时
                tts.speak(messages.get(0), TextToSpeech.QUEUE_FLUSH, null);
                   ^
    去看定义
    果然是：Deprecated
    推荐是：
    * @deprecated As of API level 21, replaced by
*         {@link #speak(CharSequence, int, Bundle, String)}.
*/
    但是如何改，需要好好研究一下逻辑
    texttospeech speak deprecated
    在当前文件中找到实现了
    android/speech/tts/TextToSpeech.java
    /**
 * Speaks the text using the specified queuing strategy and speech parameters, the text may
 * be spanned with TtsSpans.
 * This method is asynchronous, i.e. the method just adds the request to the queue of TTS
 * requests and then returns. The synthesis might not have finished (or even started!) at the
 * time when this method returns. In order to reliably detect errors during synthesis,
 * we recommend setting an utterance progress listener (see
 * {@link #setOnUtteranceProgressListener}) and using the
 * {@link Engine#KEY_PARAM_UTTERANCE_ID} parameter.
 *
 * @param text The string of text to be spoken. No longer than
 *            {@link #getMaxSpeechInputLength()} characters.
 * @param queueMode The queuing strategy to use, {@link #QUEUE_ADD} or {@link #QUEUE_FLUSH}.
 * @param params Parameters for the request. Can be null.
 *            Supported parameter names:
 *            {@link Engine#KEY_PARAM_STREAM},
 *            {@link Engine#KEY_PARAM_VOLUME},
 *            {@link Engine#KEY_PARAM_PAN}.
 *            Engine specific parameters may be passed in but the parameter keys
 *            must be prefixed by the name of the engine they are intended for. For example
 *            the keys "com.svox.pico_foo" and "com.svox.pico:bar" will be passed to the
 *            engine named "com.svox.pico" if it is being used.
 * @param utteranceId An unique identifier for this request.
 *
 * @return {@link #ERROR} or {@link #SUCCESS} of <b>queuing</b> the speak operation.
 */
public int speak(final CharSequence text,
                 final int queueMode,
                 final Bundle params,
                 final String utteranceId) {
    return runAction(new Action<Integer>() {
        @Override
        public Integer run(ITextToSpeechService service) throws RemoteException {
            Uri utteranceUri = mUtterances.get(text);
            if (utteranceUri != null) {
                return service.playAudio(getCallerIdentity(), utteranceUri, queueMode,
                        getParams(params), utteranceId);
            } else {
                return service.speak(getCallerIdentity(), text, queueMode, getParams(params),
                        utteranceId);
            }
        }
    }, ERROR, "speak");
}
    TextToSpeech  |  Android 开发者  |  Android Developers
    新的：
    speak(CharSequence text, int queueMode, Bundle params, String utteranceId)
Speaks the text using the specified queuing strategy and speech parameters, the text may be spanned with TtsSpans.
    旧的：
    int
speak(String text, int queueMode, HashMap<String, String> params)
This method was deprecated in API level 21. As of API level 21, replaced byspeak(java.lang.CharSequence, int, android.os.Bundle, java.lang.String).
    java – Android TTS sound Leaked Service Connection and speak deprecated – Stack Overflow
    android – TextToSpeech : deprecated speak function in API Level 21 – Stack Overflow
    String text = editText.getText().toString();


if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
    tts.speak(text,TextToSpeech.QUEUE_FLUSH,null,null);
} else {
    tts.speak(text, TextToSpeech.QUEUE_FLUSH, null);
}
    好像直接用null即可？
    把：
    tts.speak(messages.get(0), TextToSpeech.QUEUE_FLUSH, null);
    改为：
    tts.speak(messages.get(0), TextToSpeech.QUEUE_FLUSH, null, null);
    试试：
    结果红色错误：
    去看提示，选第二个：
    再把之前的加上：
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
    tts.speak(messages.get(0), TextToSpeech.QUEUE_FLUSH, null, null);
} else {
    tts.speak(messages.get(0), TextToSpeech.QUEUE_FLUSH, null);
}
    然后重新编译试试
    竟然还是会报错：
    看来，虽然此处代码逻辑没问题了
    但是要彻底杜绝警告，估计只能参考
    android – TextToSpeech with API 21 – Stack Overflow
    去弄成独立函数，然加上@SuppressWarnings(“deprecation”)了。
    @SuppressWarnings("deprecation")
private void ttsUnder20(String msgText, final int queueMode) {
    tts.speak(msgText, queueMode, null);
}


@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private void ttsGreater21(String msgText, final int queueMode) {
    tts.speak(msgText, queueMode, null, null);
}
    调用：
                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
//                    tts.speak(messages.get(0), TextToSpeech.QUEUE_FLUSH, null, null);
                    ttsUnder20(messages.get(0), TextToSpeech.QUEUE_FLUSH);
                } else {
//                    tts.speak(messages.get(0), TextToSpeech.QUEUE_FLUSH, null);
                    ttsGreater21(messages.get(0), TextToSpeech.QUEUE_FLUSH);
                }
    但是：
    【未解决】Android项目中@TargetApi语法报错：Cannot resolve symbol TargetApi
    不过，突然想到，既然Android Studio足够智能，是否是，给上面依旧报错的代码，直接加上sdk版本的if判断，是否就可以消除警告了？
    去试试能否实现具体写法
                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                    tts.speak(messages.get(0), TextToSpeech.QUEUE_FLUSH, null, null);
//                    ttsUnder20(messages.get(0), TextToSpeech.QUEUE_FLUSH);
                } else {
                    @SuppressWarnings("deprecation")
                    {
                        tts.speak(messages.get(0), TextToSpeech.QUEUE_FLUSH, null);
                    }
//                    ttsGreater21(messages.get(0), TextToSpeech.QUEUE_FLUSH);
                }
    结果提示：
    Annotations are not allowed here
    不支持这么写
    对单独一行代码这么写
    另外也试了试：
                        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
//                    @SuppressWarnings("deprecation")
//                    {
                        tts.speak(messages.get(0), TextToSpeech.QUEUE_FLUSH, null);
                    }
    问题依旧
    所以放弃这条路。
    现在已解决：
    【已解决】Android项目中@TargetApi语法报错：Cannot resolve symbol TargetApi
    然后重新编译，问题解决了。
    【总结】
    此处之前代码：
    tts.speak(messages.get(0), TextToSpeech.QUEUE_FLUSH, null, null);
    报错：
    [deprecation] TextToSpeech中的speak(String,int,HashMap<String,String>)已过时
                tts.speak(messages.get(0), TextToSpeech.QUEUE_FLUSH, null);
                   ^
    原因：
    TextToSpeech中的speak
    已废弃旧的：
    int speak(final String text, final int queueMode, final HashMap<String, String> params)
    推荐用新的：
    int speak(final CharSequence text,
                 final int queueMode,
                 final Bundle params,
                 final String utteranceId)
    解决办法：
    直接改为新的函数写法即可。
    比如：
    tts.speak(messages.get(0), TextToSpeech.QUEUE_FLUSH, null, null);
    但是有个问题：
    就不支持旧的api
    所以为了兼容，写成：
                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                    tts.speak(messages.get(0), TextToSpeech.QUEUE_FLUSH, null, null);
                } else {
                    tts.speak(messages.get(0), TextToSpeech.QUEUE_FLUSH, null);
                }
    但是有个问题：
    Android Studio编译后，对于：
    tts.speak(messages.get(0), TextToSpeech.QUEUE_FLUSH, null);
    还是警告错误
    所以为了规避警告的错误
    写成：
    import android.annotation.TargetApi;

@SuppressWarnings("deprecation")
private void ttsUnder20(String msgText, final int queueMode) {
    tts.speak(msgText, queueMode, null);
}


@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private void ttsGreater21(String msgText, final int queueMode) {
    tts.speak(msgText, queueMode, null, null);
}

public void onInit(int status) {
。。。
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                    ttsUnder20(messages.get(0), TextToSpeech.QUEUE_FLUSH);
                } else {
                    ttsGreater21(messages.get(0), TextToSpeech.QUEUE_FLUSH);
                }
    才最终规避了警告。
    【后记】
    不过，有个奇怪的事情：
    之前的的另一处：
    if (messages.size() > 1) {
    for (int i = 1; i < messages.size(); i++) {
        tts.speak(messages.get(i), TextToSpeech.QUEUE_ADD, null);
    }
}
    中的speak：
            tts.speak(messages.get(i), TextToSpeech.QUEUE_ADD, null);
    也是和前面一样会报错的。
    但是上述代码改动后，android studio重新编译后，竟然下面这个speak不报错了，很是奇怪。
    不过后来再次重新编译，又报错了：
    是对的，也是我们希望的。

    （不过）为了代码完整性和一致性，也去改掉：
    不过同时也发现前面代码写错了，20和21的调用写错了。
    最终改为：
    import android.annotation.TargetApi;
。。。

public class PlayTextToSpeech extends Service implements OnInitListener {
。。。

@SuppressWarnings("deprecation")
private void ttsUnder20(String msgText, final int queueMode) {
    tts.speak(msgText, queueMode, null);
}


@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private void ttsGreater21(String msgText, final int queueMode) {
    tts.speak(msgText, queueMode, null, null);
}


    /**
     * TTS engine init
     * 
     * @param status Status
     */
    public void onInit(int status) {
        if ((tts != null) && (status == TextToSpeech.SUCCESS)) {
            Log.v(TAG, "TTS engine initialized with success");
            if ((messages != null) && (messages.size() > 0)) {
                // Speak
                Log.v(TAG, "Start TTS session: play " + messages.size() + " messages");
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
//                    tts.speak(messages.get(0), TextToSpeech.QUEUE_FLUSH, null, null);
                    ttsGreater21(messages.get(0), TextToSpeech.QUEUE_FLUSH);
                } else {
//                    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
//                    @SuppressWarnings("deprecation")
//                    {
//                        tts.speak(messages.get(0), TextToSpeech.QUEUE_FLUSH, null);
//                    }
                    ttsUnder20(messages.get(0), TextToSpeech.QUEUE_FLUSH);
                }
                if (messages.size() > 1) {
                    for (int i = 1; i < messages.size(); i++) {
//                        tts.speak(messages.get(i), TextToSpeech.QUEUE_ADD, null);
                        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                            ttsGreater21(messages.get(i), TextToSpeech.QUEUE_ADD);
                        } else {
                            ttsUnder20(messages.get(i), TextToSpeech.QUEUE_ADD);
                        }
                    }
                }

。。。
            }
        }
    }
    即可。

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