How to detect if the language is English (All variants) on Android?

I want to show a button only for English users, is there a way to detect the language settings?

I know how to get the current Locale, but I don't know if comparing it against Locale.English is sufficient, since there must be a lot of English variations etc.

Anyone expe开发者_运维知识库rience doing this?

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From the Locale docs:

The language codes are two-letter lowercase ISO language codes (such as "en") as defined by ISO 639-1. The country codes are two-letter uppercase ISO country codes (such as "US") as defined by ISO 3166-1.

This means that

Locale.getDefault().getLanguage().equals("en")

should be true. I'd be careful with hiding/showing UI only by default Locale though. Many countries may have many users that prefer another language, but are perfectly fluent in English.

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Locale.getDefault().getDisplayLanguage() will give your default language of your device

Example

System.out.println("My locale::"+Locale.getDefault().getDisplayLanguage());

Result

My locale::English

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What about using Java's startsWith() function to check whether the current locale is an English variant or not.

Locale.getDefault().getLanguage().startsWith("en")

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An alternative solution would be to create a localized English version of the form. See http://developer.android.com/guide/topics/resources/localization.html for details.

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The proper way is probably:

boolean def_english = Locale.getDefault().getISO3Language().equals(Locale.ENGLISH.getISO3Language());

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All I can say about language is that :

1- in order to get the current language of app itself you should use

String CurrentLang = getResources().getConfiguration().locale.getLanguage();

2- in order to get the current language of the device you should use

String CurrentLang = Locale.getDefault().getLanguage();

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To know if the default language is an english variant (en_GB or en_AU or en_IN or en_US) then try this

if (Locale.getDefault().getLanguage().equals(new Locale("en").getLanguage())) {
    Log.d(TAG, "Language is English");
}

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Locale.getDefault().getDisplayLanguage();

if(Locale.getDefault().getDisplayLanguage().equals("English")){

    //do something
}