安卓多語言與屏幕方向和大小的適配

/**
 * @author xt on 2020/1/6 13:09
 * 英文增加value-en文件夾
 * 中文簡體增加values-zh文件夾
 */
public class MyLanguageUtils {

    public static Context updateLanguage(Context context) {

        Locale locale = getCurrentLocale(context);

        if (locale == null) {
            return context;
        }

        Resources      resources      = context.getResources();
        Configuration  configuration  = resources.getConfiguration();
        DisplayMetrics displayMetrics = resources.getDisplayMetrics();

        configuration.setLocale(locale);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
            return context.createConfigurationContext(configuration);
        } else {
            resources.updateConfiguration(configuration, displayMetrics);
            return context;
        }
    }

    /**
     * 默認:0
     * 簡體中文:1
     * 英文:2
     *
     * @param context
     * @param locale
     */
    public static void saveLanguage(Context context, Locale locale) {
        SharedPreferences        preferences = context.getSharedPreferences("language", Context.MODE_PRIVATE);
        SharedPreferences.Editor editor      = preferences.edit();
        int                      language    = 0;
        if (locale != null) {
            if (locale.equals(Locale.SIMPLIFIED_CHINESE)) {
                language = 1;
            } else if (locale.equals(Locale.ENGLISH)) {
                language = 2;
            }
        }
        editor.putInt("language", language);
        editor.commit();
    }

    /**
     * 中文分簡體和繁體，英文不分是UK、US、CANADA,目前只支持簡體中文和英文
     *
     * @param context
     * @return
     */
    public static Locale getCurrentLocale(Context context) {
        Locale locale = getSystemLocale(context);

        {
            SharedPreferences preferences = context.getSharedPreferences("language", Context.MODE_PRIVATE);
            int               language    = preferences.getInt("language", 0);
            switch (language) {
                case 1:
                    locale = Locale.SIMPLIFIED_CHINESE;
                    break;
                case 2:
                    locale = Locale.ENGLISH;
                    break;
                default:
                    break;
            }
        }

        {
            //當返回的語言是不支持的語言時就返回默認語言，當前爲英語
            if ((!locale.equals(Locale.SIMPLIFIED_CHINESE) && !locale.equals(Locale.ENGLISH))) {
                locale = Locale.ENGLISH;
            }
        }

        return locale;
    }

    private static Locale getSystemLocale(Context context) {
        Locale locale;
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            //7.0有多語言設置獲取頂部的語言
            locale = context.getResources().getConfiguration().getLocales().get(0);
        } else {
            locale = context.getResources().getConfiguration().locale;
        }
        return locale;
    }

    /**
     * 打開新的activity後，關閉新的activity前面的所有activity
     * @param context
     * @param activityClass
     */
    public static void restartApp(Context context, Class activityClass) {
        Intent intent = new Intent(context, activityClass);
        context.startActivity(intent);
    }

    /**
     * 是否是簡體中文
     *
     * @param context
     * @return
     */
    public static boolean isSimplifiedChinese(Context context) {
        return getCurrentLocale(context).equals(Locale.SIMPLIFIED_CHINESE);
    }
}

切換語言，會造成屏幕方向和大小的api錯亂

 

BaseActivity中實現方法

@Override
protected void attachBaseContext(Context newBase) {
    super.attachBaseContext(MyLanguageUtils.updateLanguage(newBase));
}

@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);
    getResources().getConfiguration().orientation = newConfig.orientation;
    getApplication().getResources().getConfiguration().orientation = newConfig.orientation;
    getApplication().getResources().getDisplayMetrics().setTo(getResources().getDisplayMetrics());
}

Application中的實現

@Override
protected void attachBaseContext(Context base) {
    super.attachBaseContext(MyLanguageUtils.updateLanguage(base));
}

@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);
    getResources().getConfiguration().orientation = newConfig.orientation;
    MyLanguageUtils.updateLanguage(this);
}