Android在第二次更改区域设置后从默认字符串文件(strings.xml)加载值

我正在开发一个Android应用程序,我只需一个按钮就可以在主屏幕上更改区域设置(英语到阿拉伯语)。它在主屏幕上运行良好,但当我多次更改语言时,问题就出现了。 按照以下步骤重新生成:

• 在主(登录)屏幕上,当前语言是 English 我把它改成 Arabic . (工程精细)
• 转到“注册”或“忘记密码”页,此时语言已更改。( 阿拉伯语的 )
• 返回主屏幕并将区域设置更改回 英语 从 阿拉伯语的 . (在登录屏幕上工作)
• 转到注册页,现在方向已更改,但字符串已从阿拉伯语加载。(当前语言为 英语 )

这是我更改区域设置的代码。

import android.app.Activity;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.preference.PreferenceManager;
import android.support.v4.text.TextUtilsCompat;
import android.support.v4.view.ViewCompat;
import android.view.View;

import java.util.Locale;

public class LocaleSettings {

public static final String LANGUAGE_ENGLISH = "en";
public static final String LANGUAGE_ARABIC = "ar";
public static final String CURRENT_LANGUAGE = "currentLanguage";

/**
 * Loads the current language of application
 *
 * @param context current context, pass "this" for current view context
 */
public static void loadLocal(Context context) {
    setLocal(context, PreferenceManager.getDefaultSharedPreferences(context).getString(CURRENT_LANGUAGE, ""));
}

/**
 * This fucntion sets the application language
 *
 * @param context - current context. pass "this" for current view context
 * @param lang    Language String, i.e. "en" or "ar"
 */
public static void setLocal(Context context, String lang) {
    Locale locale = new Locale(lang);
    Locale.setDefault(locale);
    Configuration config = new Configuration();
    config.setLocale(locale);
    context.getResources().updateConfiguration(config, context.getResources().getDisplayMetrics());

    SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(context);
    SharedPreferences.Editor editor = pref.edit();
    editor.putString(CURRENT_LANGUAGE, lang);
    editor.apply();
    editor.commit();
}

/**
 * Use to change application language using current context
 *
 * @param context pass "this" for current view context
 */
public static void switchLanguage(Context context) {
    if (getCurrentLanguage(context).equals(LANGUAGE_ENGLISH))
        setLocal(context, LANGUAGE_ARABIC);
    else
        setLocal(context, LANGUAGE_ENGLISH);
}

/**
 * Get application current active language
 *
 * @param context pass "this" for current view context
 * @return String - language string i.e. en or ar
 */
public static String getCurrentLanguage(Context context) {
    return PreferenceManager.getDefaultSharedPreferences(context).getString(CURRENT_LANGUAGE, "");
}

public static boolean isRTL(String locale) {
    return TextUtilsCompat.getLayoutDirectionFromLocale(new Locale(locale)) == ViewCompat.LAYOUT_DIRECTION_RTL ? true : false;
}

public static void enforceDirectionIfRTL(Context context){
    if(isRTL(getCurrentLanguage(context))){
        ((Activity) context).getWindow().getDecorView().setLayoutDirection(View.LAYOUT_DIRECTION_RTL);
    }

}

}

这是登录活动的代码

public class LoginActivity extends AppCompatActivity {

    private Button loginButton = null;
    private EditText account_no = null;
    private EditText password = null;
    final UserApi userApi = JoezdanServiceGenerator.createService(UserApi.class);

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        LocaleSettings.loadLocal(this);
        setContentView(R.layout.activity_login);

        configureLanaguageButton();

    }

    private void configureLanaguageButton() {

        final ImageButton selectLocale = (ImageButton) findViewById(R.id.btnSelectLanguage);
        selectLocale.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                LocaleSettings.switchLanguage(LoginActivity.this);
                recreate();
            }
        });

    }

... eliminating irrelevant code
}

这是我的第一个Android应用程序,如果有错误请原谅我。事先谢谢。