onRangeStart（）在阅读段落时（遇到标点符号后）停止获取回调

Question

onRangeStart utteranceId: 100000, start: 0, end: 5, frame: 120, text: Hello
onRangeStart utteranceId: 100000, start: 6, end: 11, frame: 6060, text: world
onRangeStart utteranceId: 100000, start: 13, end: 16, frame: 18720, text: how
onRangeStart utteranceId: 100000, start: 17, end: 20, frame: 23760, text: are
onRangeStart utteranceId: 100000, start: 21, end: 24, frame: 26040, text: you

有人能帮我弄清楚是什么导致了这个问题吗？

Answer 1

onRangeStart（）的实现/行为取决于安装在测试设备上的引擎。

因此，要么是在两个完全不同的引擎上测试，其中一个有不理想的实现，要么是在两个完全不同的引擎上测试

您正在成功测试的引擎在您的测试之间进行了更新，并且在更新中引入了一个实际的bug。

private ArrayList<String> whatEnginesAreInstalled(Context context) {
    final Intent ttsIntent = new Intent();
    ttsIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);
    final PackageManager pm = context.getPackageManager();
    final List<ResolveInfo> list = pm.queryIntentActivities(ttsIntent, PackageManager.GET_META_DATA);
    ArrayList<String> installedEngineNames = new ArrayList<>();
    for (ResolveInfo r : list) {
        String engineName = r.activityInfo.applicationInfo.packageName;
        installedEngineNames.add(engineName);

        // just logging the version number out of interest
        String version = "null";
        try {
            version = pm.getPackageInfo(engineName,
            PackageManager.GET_META_DATA).versionName;
            } catch (Exception e) {
                Log.i("XXX", "try catch error");
            }
        Log.i("XXX", "we found an engine: " + engineName);
        Log.i("XXX", "version: " + version);
    }
    return installedEngineNames;
}