如何用多种语言保存现有语言？
如何用多种语言保存现有语言？
提问于 2015-04-18 06:34:04
我正在做一个多语言的android项目。我做到了，但当我关闭应用程序时，它又回到了默认语言。我在谷歌上搜索了一些关于堆栈溢出的主题。他们说，我必须用SharedPreferences保存当前的语言。我试过了，但没成功。PLz检查我做错了什么。我的代码：
public class setting extends Fragment {
/**
* @param args
*/
private Spinner spinnerctrl;
private Locale myLocale;
public View onCreateView(LayoutInflater inflater,
@Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
// TODO Auto-generated method stub
View settingView = inflater.inflate(R.layout.setting, container, false);
spinnerctrl = (Spinner) settingView.findViewById(R.id.spinner1);
spinnerctrl.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
if (arg2 == 1) {
Toast.makeText(arg0.getContext(), "You have selected English", Toast.LENGTH_SHORT).show();
setLocale("en");
} else if (arg2 == 2) {
Toast.makeText(arg0.getContext(), "You have selected VietNam", Toast.LENGTH_SHORT).show();
setLocale("vi");
}
}
private void setLocale(String lang) {
// TODO Auto-generated method stub
SharedPreferences prefs = getActivity().getSharedPreferences(
"com.example.app", Context.MODE_PRIVATE);
myLocale = new Locale(lang);
Resources res = getResources();
DisplayMetrics dm = res.getDisplayMetrics();
Configuration conf = res.getConfiguration();
conf.locale = myLocale;
res.updateConfiguration(conf, dm);
Intent refresh = new Intent(getActivity(), MainActivity.class);
startActivity(refresh);
String lan = prefs.getString("language", Locale.getDefault().getLanguage() );
setLocale(lan);
prefs.edit().putString("language", "en").apply();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub
}
});
return settingView;
}回答 1
Stack Overflow用户
回答已采纳
发布于 2015-04-18 07:04:51
在您的setLocale()中，首先应该存储首选项，然后检索它。你是用相反的方式做的。所以,
prefs.edit().putString("language", "en").apply();应该先来，然后
String lan = prefs.getString("language", Locale.getDefault().getLanguage() );更新的职能：
private void setLocale(String lang) {
/*SharedPreferences prefs = getActivity().getSharedPreferences(
"com.example.app", Context.MODE_PRIVATE);*/
SharedPreferences setPrefs = getApplicationContext().getSharedPreferences("com.example.app", MODE_PRIVATE);
SharedPreferences.Editor editor = setPrefs.edit();
editor.putString("language", "en");
editor.commit();
myLocale = new Locale(lang);
Resources res = getResources();
DisplayMetrics dm = res.getDisplayMetrics();
Configuration conf = res.getConfiguration();
conf.locale = myLocale;
res.updateConfiguration(conf, dm);
Intent refresh = new Intent(getActivity(), MainActivity.class);
startActivity(refresh);
/*prefs.edit().putString("language", "en").apply();
String lan = prefs.getString("language", Locale.getDefault().getLanguage() );
//setLocale(lan); //Remove this. It will create infinite loop */
SharedPreferences getPrefs = getApplicationContext().getSharedPreferences("com.example.app", MODE_PRIVATE);
String lan = getPrefs.getString("language", "");
System.out.println("-- locale from getPrefs " + lan);
}要了解有关SharedPreferences的更多信息，请查看此link。
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原文链接：
https://stackoverflow.com/questions/29713837
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