Question

您好我正在构建一个使用语音识别的应用程序，我的意图是，用户可以在没有互联网的情况下使用该应用程序，因此他需要在智能手机中下载语言包。

1 - 是否可以检查手机中是否已有手机包？
2 - 我可以向用户显示语音包系统配置（如wifi或gps配置）吗？

Answer 1

检查已安装的TTS。使用您活动中的此代码

Intent checkTTSIntent = new Intent();
        checkTTSIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);

        checkTTSIntent.putExtra(
                TextToSpeech.Engine.EXTRA_CHECK_VOICE_DATA_FOR,
                Locale.getDefault());
        startActivityForResult(checkTTSIntent, MY_DATA_CHECK_CODE);

在onActivityResult中添加此代码，用于检查tts引擎是否可用

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == MY_DATA_CHECK_CODE) {
        if (resultCode == TextToSpeech.Engine.CHECK_VOICE_DATA_FAIL) {
            //TTS is not installed for the default language
        }

        if (resultCode == TextToSpeech.Engine.CHECK_VOICE_DATA_PASS) {

            Toast.makeText(
                    getApplicationContext(),
                    "TTS Engine Data for default language is installed ",
                    Toast.LENGTH_LONG).show();
        } else {

       //TTS for default language not installed.check for other languages 
            if (data != null) {
                ArrayList<String> availableLanguages = data
                        .getStringArrayListExtra(TextToSpeech.Engine.EXTRA_AVAILABLE_VOICES);

                if (availableLanguages.isEmpty()) {
                    // no language data available, prompt for install
                    showDialog();
                } else {
                    // some language data is available, create TTS instance

                    Toast.makeText(
                            getApplicationContext(),
                            "TTS Engine Data for default language is installed.",
                            Toast.LENGTH_LONG).show();

                }
            }

        }

检查语音包是否已经在android中

1 个答案: