为什么区域设置被覆写的preferenceActivity时方向的变化？ [英] Why locale settings are overriden on PreferenceActivity when orientation changes?

问题描述

我有一个应用程序，用户可以改变它的语言。

I have an app where the user can change its language.

一切都在我的MainActivity.onCreate做工精细，与眼前这个code（）：

Everything is working fine, with just this code on my MainActivity.onCreate():

String lang = PreferenceManager.getDefaultSharedPreferences(this).getString("languagePref", "default");
    Configuration config = getResources().getConfiguration();
    if( lang.equals("default") ) lang = Locale.getDefault().getLanguage();
    config.locale = new Locale(lang);
    getResources().updateConfiguration(config, getResources().getDisplayMetrics());

当我重新启动应用程序或浏览通过各种活动，它仍然在正确的语言。

When I restart the app or navigate through activities it's still in the right language.

唯一的问题是preferenceActivity屏幕上。当方向变化时，preferenceActivity标题（和只有它）更改默认的设备语言。

The only problem is on the PreferenceActivity screen. When the orientation changes, the PreferenceActivity title (and only it) changes to the default device language.

在preFS仍在核对正确，如果我回去（关闭preferenceActivity）的应用程序仍然在正确的语言，但直到我重新启动应用程序的preferenceActivity留错了。

The prefs are still checked correctly, if I go back (closing the PreferenceActivity) the app is still on the right language, but the PreferenceActivity stays wrong until I restart the app.

我试图迫使code以上的preferenceActivity.onCreate（）和altough调试似乎确定，prefenceActivity标题保持错了。

I tried forcing the code above on the PreferenceActivity.onCreate() and altough debugging seems OK, the PrefenceActivity Title stays wrong.

下面是我的prefenceActivity code：

Here's my PrefenceActivity code:

public class PreferencesActivity extends PreferenceActivity {

    @SuppressWarnings("deprecation")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        addPreferencesFromResource(R.xml.preferences);
    }
}

此行​​为不会对任何其他活动发生的：/

This behavior doesn't happen on any other Activity :/

锁定屏幕方向是不是一种选择。

Locking the screen orientation is not an option.

有什么想法？

感谢。

推荐答案

OK，这个固定的我。

OK, this fixed it for me.

@Override
protected void onSaveInstanceState(Bundle outState) {
    String lang = PreferenceManager.getDefaultSharedPreferences(this).getString("languagePref", "default");
    Configuration config = getResources().getConfiguration();
    if( lang.equals("default") ) lang = Locale.getDefault().getLanguage();
    config.locale = new Locale(lang);
    getResources().updateConfiguration(config, getResources().getDisplayMetrics());
    super.onSaveInstanceState(outState);
}

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