我正在开发支持德语和意大利语的双语android应用程序。
目前,我有一个values-it
带有意大利字符串,一个values
带有德国字符串。
除非您在设备上使用德语和意大利语,否则此方法效果很好。
在这种情况下,按照以下计算,应用程序始终是意大利语的:
User Setting: de_DE, it_IT
App Resources: default(en), it
Try de_IT -> fail
Try de -> fail
Try it_IT -> fail
Try it -> Success
这可能是因为默认值被隐式地视为values-en
,而在我看来,它实际上是values-de
。
有没有办法告诉android,我的应用程序的默认语言环境是de
而不是en
?
答案 0 :(得分:2)
我不知道是否还有其他选择,一种方法是以编程方式进行。根据{{3}},我创建了以下类来更改默认的Local:
public class LocaleHelper {
public static Context onAttach(Context context) {
String lang = Locale.getDefault().getLanguage();
if(lang.equals("it") || lang.equals("de"))
return context;
String locale = "de";
return setLocale(context, locale);
}
private static Context setLocale(Context context, String localeSpec) {
Locale locale;
if (localeSpec.equals("system")) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
locale = Resources.getSystem().getConfiguration().getLocales().get(0);
} else {
locale = Resources.getSystem().getConfiguration().locale;
}
} else {
locale = new Locale(localeSpec);
}
Locale.setDefault(locale);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
return updateResources(context, locale);
} else {
return updateResourcesLegacy(context, locale);
}
}
@TargetApi(Build.VERSION_CODES.N)
private static Context updateResources(Context context, Locale locale) {
Configuration configuration = context.getResources().getConfiguration();
configuration.setLocale(locale);
configuration.setLayoutDirection(locale);
return context.createConfigurationContext(configuration);
}
@SuppressWarnings("deprecation")
private static Context updateResourcesLegacy(Context context, Locale locale) {
Resources resources = context.getResources();
Configuration configuration = resources.getConfiguration();
configuration.locale = locale;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
configuration.setLayoutDirection(locale);
}
resources.updateConfiguration(configuration, resources.getDisplayMetrics());
return context;
}
}
您应该在Activity类中使用它:
@Override
protected void attachBaseContext(Context base) {
super.attachBaseContext(LocaleHelper.onAttach(base));
}
如果您使用uk.co.chrisjenx.calligraphy
更改字体,则应执行以下操作:
@Override
protected void attachBaseContext(Context base) {
super.attachBaseContext(CalligraphyContextWrapper.wrap(LocaleHelper.onAttach(base)));
}
使用出色的Ricardo's great solution,我设法自动找到了提供的语言。因此,每当您向资源中添加新的翻译时,您都无需再对it
,de
或其他提供的翻译进行硬编码。
public class LocaleHelper {
public static Context onAttach(Activity context) {
Set<String> providedLangs = getProvidedLanguages(context);
String lang = Locale.getDefault().getLanguage();
if(providedLangs.contains(lang))
return context;
String locale = "de";
return setLocale(context, locale);
}
private static Set<String> getProvidedLanguages(Activity activity){
DisplayMetrics metrics = new DisplayMetrics();
activity.getWindowManager().getDefaultDisplay().getMetrics(metrics);
Resources r = activity.getResources();
Configuration c = r.getConfiguration();
String[] loc = r.getAssets().getLocales();
Set<String> providedLangs = new HashSet<String>();
for (int i = 0; i < loc.length; i++) {
Timber.e("LOCALE: " + i + ": " + loc[i]);
c.locale = new Locale(loc[i]);
Resources res = new Resources(activity.getAssets(), metrics, c);
String s1 = res.getString(R.string.app_name);
c.locale = new Locale("");
Resources res2 = new Resources(activity.getAssets(), metrics, c);
String s2 = res2.getString(R.string.app_name);
if(!s1.equals(s2)){
if(!providedLangs.contains(loc[i]))
providedLangs.add(loc[i]);
}
}
return providedLangs;
}
private static Context setLocale(Context context, String localeSpec) {
Locale locale;
if (localeSpec.equals("system")) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
locale = Resources.getSystem().getConfiguration().getLocales().get(0);
} else {
locale = Resources.getSystem().getConfiguration().locale;
}
} else {
locale = new Locale(localeSpec);
}
Locale.setDefault(locale);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
return updateResources(context, locale);
} else {
return updateResourcesLegacy(context, locale);
}
}
@TargetApi(Build.VERSION_CODES.N)
private static Context updateResources(Context context, Locale locale) {
Configuration configuration = context.getResources().getConfiguration();
configuration.setLocale(locale);
configuration.setLayoutDirection(locale);
return context.createConfigurationContext(configuration);
}
@SuppressWarnings("deprecation")
private static Context updateResourcesLegacy(Context context, Locale locale) {
Resources resources = context.getResources();
Configuration configuration = resources.getConfiguration();
configuration.locale = locale;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
configuration.setLayoutDirection(locale);
}
resources.updateConfiguration(configuration, resources.getDisplayMetrics());
return context;
}
}
答案 1 :(得分:0)
20210715 这似乎对我有用。专注于标识语言环境并认识到必须提供上下文的语句
///this function was called from a FRAGMENT and works fine .
//// dateLong = TimeConvert.tcConvertDateToLong(..........,requireContext()
fun tcConvertDateToLong(
yyyy: Int, MM: Int, dd: Int, HH: Int, mm: Int,context: Context
): Long {
val mTag64="TimeConvert_tcConvertDateToLong"
val date:String
date=yyyy.toString() + "." + MM.toString() + "."+ dd.toString() +" "+ HH.toString() + ":" + mm.toString()
////////////-------------------------------------------------------------
val locale = getLocales(context.getResources().getConfiguration()).get(0)
//////////-------------------------------------------------------------
val df = SimpleDateFormat("yyyy.MM.dd HH:mm",locale)
return try {
df.parse(date)!!.time
} catch ( e: ParseException){
java.lang.System.currentTimeMillis()
}
}