Question

各位大家好！所以我尝试在我的应用程序中实现更改语言。我这样做如下： array.xml

<resources>
    <string-array name="Language">
        <item>English</item>
        <item>Ukraine</item>
        <item>French</item>
        <item>Spanish</item>
        <item>Italian</item>
    </string-array>

    <string-array name="languageAlias">
        <item>"en_US"</item>
        <item>"uk_UA"</item>
        <item>"fr"</item>
        <item>"es"</item>
        <item>"it"</item>
    </string-array>
</resources>

我有nessesary值-en，-fr，-es和我的字符串值... 我有SettingsActivity，SettingsFragment。这是碎片：

    public class SettingsFragment extends PreferenceFragment implements SharedPreferences.OnSharedPreferenceChangeListener {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        addPreferencesFromResource(R.xml.settings);
        getPreferenceScreen().getSharedPreferences().registerOnSharedPreferenceChangeListener(this);
    }

    @Override
    public void onStop() {
        super.onStop();
        getPreferenceScreen().getSharedPreferences().unregisterOnSharedPreferenceChangeListener(this);
    }

    @Override
    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
        Log.i("SettingsFragment", "key = " + key);

        if (key.equals("list_preference")) {
            Log.i("SettingsFragment", "key = "+ key);
            setLanguage(getActivity().getApplicationContext(), key);
            restartActivity();
        }
    }

    private void setLanguage(Context context, String languageToLoad) {
        String localeStr = getPreferenceScreen().getSharedPreferences().getString(languageToLoad, "");
        if(localeStr.equals("en_US")){
                Log.i("setLanguage", "en");
                Locale locale = new Locale(localeStr);
                Locale.setDefault(locale);
                Configuration config = new Configuration();
                config.locale = locale;
                context.getResources().updateConfiguration(config, context.getResources().getDisplayMetrics());
            } else
            if(localeStr.equals("uk_UA")){
                Log.i("setLanguage", "uk");
                Locale locale = new Locale(localeStr);
                Locale.setDefault(locale);
                Configuration config = new Configuration();
                config.locale = locale;
                context.getResources().updateConfiguration(config, context.getResources().getDisplayMetrics());
            }
    }

    private void restartActivity() {
        Intent intent = getActivity().getIntent();
        getActivity().finish();
        startActivity(intent);
    }
}

res / xml / setting.xml中的PreferenceScreen

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
<PreferenceCategory
    android:title="PreferenceCategory">

    <CheckBoxPreference
        android:key="checkbox_preference"
        android:title="CheckBoxPreference.title"
        android:summary="CheckBoxPreference.summary" />

</PreferenceCategory>

<PreferenceCategory
    android:title="PreferenceCategoryList">

    <ListPreference
        android:key="list_preference"
        android:title="PreferenceCategoryList.title"
        android:summary="PreferenceCategoryList.summary"
        android:entries="@array/Language"
        android:entryValues="@array/languageAlias"
        android:dialogTitle="PreferenceCategoryList.dialogTitle" />

</PreferenceCategory>

但是，当我从列表中选择一种语言时，它可以正常工作，但是当您重新启动应用程序时，它将不会被选中。还想问一下我选择的正确方法是否正确？可能有更好的方法吗？更新还是更正确？请分享与此主题相关的有用链接。

感谢您的关注，如果对此问题的描述表达不好，我很抱歉。

在我的应用中设置语言

0 个答案: