我正在开发一个双语的android应用程序,它支持德语和意大利语。
现在我有一个values-it
意大利弦和一个values
德国弦。
这很有效,除非你在你的设备上使用德语和意大利语。
在这种情况下,应用程序始终使用意大利语,遵循以下计算:
User Setting: de_DE, it_IT
App Resources: default(en), it
Try de_DE -> 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
,而在我的例子中,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
? 最佳答案
我不知道还有没有其他选择,一种方法是用编程的方式。根据Ricardo's great solution,我创建了以下类以更改默认本地:
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;
}
}
你应该在你的活动课上使用它:
@Override
protected void attachBaseContext(Context base) {
super.attachBaseContext(LocaleHelper.onAttach(base));
}
如果使用
uk.co.chrisjenx.calligraphy
更改字体,应执行以下操作:@Override
protected void attachBaseContext(Context base) {
super.attachBaseContext(CalligraphyContextWrapper.wrap(LocaleHelper.onAttach(base)));
}
更新
使用这个突出的post我设法自动找到提供的语言。因此,当您向资源中添加新的翻译时,无需再硬编码
it
、de
或其他提供的翻译。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;
}
}
关于android - Android-定义默认语言环境,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/52718347/