我正在创建一个使用Text to Speech的应用程序,我希望用户能够脱机使用它,所以我检查一下是否在设备上安装了TTS数据,这里有代码执行此操作:
// Check tts data is installed
Intent checkTTSIntent = new Intent();
checkTTSIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);
startActivityForResult(checkTTSIntent, MY_DATA_CHECK_CODE);
protected void onActivityResult(int requestCode, int resultCode, Intent data){
if(requestCode == MY_DATA_CHECK_CODE){
if(resultCode == TextToSpeech.Engine.CHECK_VOICE_DATA_PASS){
tts = new TextToSpeech(this, this);
}
else{
Intent installTTSIntent = new Intent();
installTTSIntent.setAction(TextToSpeech.Engine.ACTION_INSTALL_TTS_DATA);
startActivity(installTTSIntent);
}
}
}
但是这会提示用户安装德语,西班牙语,法语和意大利语作为四个下载选项,我怎样才能检查是否安装了一种语言,如意大利语?
我做了一些研究,但我很难找到能让我实现这一目标的代码示例。
答案 0 :(得分:1)
使用EXTRA_CHECK_VOICE_DATA_FOR
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == MY_DATA_CHECK_CODE) {
if (resultCode == TextToSpeech.Engine.CHECK_VOICE_DATA_PASS) {
tts = new TextToSpeech(this, this);
}
else {
Intent installTTSIntent = new Intent();
installTTSIntent.setAction(TextToSpeech.Engine.ACTION_INSTALL_TTS_DATA);
ArrayList<String> languages = new ArrayList<String>();
languages.add("it-IT"); // non sure if "it" is the right abbr for italian
installTTSIntent.putStringArrayListExtra(TextToSpeech.Engine.EXTRA_CHECK_VOICE_DATA_FOR,
languages);
startActivity(installTTSIntent);
}
}
}