Question

从片段（设置）中按下名为TextView的{{1}}，在其中更改设置（语言）应用程序，如何关闭DialogFragment，无需应用设置重启整个应用程序？

理想情况下，在DialogFragment选择对话框中立即更改语言。随着重启一切正常。这是代码SingleChoice：

DialogFragment

下面是我想要实现的应用程序示例：https://play.google.com/store/apps/details?id=com.funeasylearn.english

屏幕截图：

Answer 1

尝试以下代码。您必须根据用户选择的语言创建新的语言环境，将其设置为当前语言环境并重新启动您的活动。请注意，如果在执行区域设置切换时它们处于活动状态，则可能必须重新启动其他活动。

public class LanguageDialogFragment extends DialogFragment {

    private final String[] itemsLang = {"English", "Russian", "Ukraine"};
    private final String[] items = {"en", "ru", "uk"};
    private String lang;

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {

        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        builder.setTitle("Выберите свой родной язык")
            .setSingleChoiceItems(itemsLang, -1, new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int item) {
                    lang = items[item];

                }
            }).setPositiveButton("Ok", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    //When user submits, restart the activity in
                    //the new language
                    restartActivityInLanguage(lang);

                }
            }).setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    //Do nothing
                }
            });

        return builder.create();
    }

    private void restartActivityInLanguage(String language) {
        Locale locale = new Locale(language);
        Configuration config = new Configuration();
        config.locale = locale;
        Resources resources = getResources();
        resources.updateConfiguration(config, resources.getDisplayMetrics());
        getActivity().recreate();
    }
}

应用程序内的Android Switch语言无需重新启动

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