重新创建（）增加内存占用

Question

我的活动包含两个带标题的单选按钮：Hindi和English。

为了刷新UI，根据用户选择的语言，我执行以下步骤：

1. 使用语言代码更新用户首选项
2. 调用recreate()方法
3. 在onCreate()中从首选项中获取语言代码
4. 基于获取的语言代码更新语言环境
5. 最后设置ContentView

问题是 -

  

当我不断在这两种语言之间切换时   线性增加应用程序的内存占用量   ＆＃39; Android Monitor＆＃39;。

以下是代码：

//region Activity Life Cycle methods
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        refreshLocaleAsPerPreferences();
        setContentView(R.layout.activity_welcome);
        markRadioButtonSelectedAsPerPreferences();
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        previousLanguage = null;
    }

    //endregion

    //region Locale refresh related methods
    private void updateLocale(String languageIsoCode) {
        if(languageIsoCode != null && languageIsoCode.equalsIgnoreCase("")){
            return;
        }
        Locale locale = new Locale(languageIsoCode);
        Locale.setDefault(locale);
        Configuration config = new Configuration();
        config.locale = locale;
        getResources().updateConfiguration(config,getResources().getDisplayMetrics());
    }

    private void refreshLocaleAsPerPreferences() {
        // Obtaining language from shared preferences
        String languageIsoCode = getLangFromPreferences();

        // Check for null
        if(languageIsoCode != null && languageIsoCode.equalsIgnoreCase("")){
            // No language found
            // Obtaining language from device preferences
            String devicePreferencesLanguage = Locale.getDefault().getLanguage();
            if (devicePreferencesLanguage.equalsIgnoreCase(HindiISOCode)
                    || devicePreferencesLanguage.equalsIgnoreCase(EnglishISOCode)) {
                // Device preferences language is one of the default languages
                // Hence update the same
                languageIsoCode = devicePreferencesLanguage;
            }
            else {
                // Device language is different than the default languages
                // Hence default to english
                languageIsoCode = EnglishISOCode;
            }

            // update language in preferences
            updateLangIsoCodeInPreferences(languageIsoCode);
        }

        // Updating locale
        updateLocale(languageIsoCode);
        previousLanguage = languageIsoCode;
    }
    //endregion

    //region radio button selection related methods
    private  void markRadioButtonSelectedAsPerPreferences() {
        String languageInPreferences = getLangFromPreferences();
        markRadioButtonSelected(languageInPreferences);
    }

    private  void markRadioButtonSelected(String languageCode) {
        RadioButton radioButton = getRadioButton(languageCode);
        radioButton.setChecked(true);
    }

    private RadioButton getRadioButton(String tag) {
        switch (tag) {
            case HindiISOCode: return (RadioButton)findViewById(R.id.radio_hindi);
            case EnglishISOCode : return (RadioButton)findViewById(R.id.radio_english);
            default:
                // if any other language is selected
                // select english
                return (RadioButton)findViewById(R.id.radio_english);
        }
    }

    private void refreshUI(String lang) {
        updateLangIsoCodeInPreferences(lang);
        recreate();
    }
    //endregion

    //region User Actions
    public void onLanguageSelection(View view) {
        RadioButton selectedRadioButton = (RadioButton)view;
        String tag = selectedRadioButton.getTag().toString();

        // Refresh UI only if current language is different than the previous one
        if (!tag.equalsIgnoreCase(previousLanguage)) {
            refreshUI(tag);
            previousLanguage = tag;
        }
    }
    //endregion

    //region Shared preferences get-set methods
    private void updateLangIsoCodeInPreferences(String languageIsoCode) {
        SharedPreferences sharedPreferences = getSharedPreferences("CommonPreferences",this.getApplicationContext().MODE_PRIVATE);
        SharedPreferences.Editor editor = sharedPreferences.edit();
        editor.putString("currentAppLang",languageIsoCode);
        editor.commit();
    }

    private String getLangFromPreferences() {
        SharedPreferences sharedPreferences = getSharedPreferences("CommonPreferences",this.getApplicationContext().MODE_PRIVATE);
        String languageIsoCode = sharedPreferences.getString("currentAppLang", "");
        return  languageIsoCode;
    }
    //endregion

如何在规定的场景中优化内存占用？请建议。