在我花了几个小时来解决这样的问题后，我实现了以下代码:

[更新:最终版本列表]

public class MyPreferencesActivity extends PreferenceActivity {
    ...
    ListPreference m_updateList;
    ...
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        addPreferencesFromResource(R.xml.preferences);

        m_updateList = (ListPreference) findPreference(getString(R.string.pref_update_interval_key));
        String currentValue = m_updateList.getValue();
        if (currentValue == null) {
            m_updateList.setValue((String)m_updateList.getEntryValues()[DEFAULT_UPDATE_TIME_INDEX]);
            currentValue = m_updateList.getValue();
        }
        updateListSummary(currentValue);    

        m_updateList.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
            @Override
            public boolean onPreferenceChange(Preference preference, Object newValue) {
                updateListSummary(newValue.toString());
                return true;
            }       
        });     
    }

    private void updateListSummary(String newValue) {
        int index = m_updateList.findIndexOfValue(newValue);
        CharSequence entry = m_updateList.getEntries()[index];
        m_updateList.setSummary(entry);
    }
}

这是唯一对我有效的解决方法。在我尝试子类从ListPreferences和实现android:summary="bla bla bla %s"。既不工作。

也许像ListPreference:修改getSummary来得到你想要的:

package your.package.preference;

import android.content.Context;
import android.util.AttributeSet;

public class EditTextPreference extends android.preference.EditTextPreference{
        public EditTextPreference(Context context, AttributeSet attrs, int defStyle) {
            super(context, attrs, defStyle);
        }

        public EditTextPreference(Context context, AttributeSet attrs) {
            super(context, attrs);
        }

        public EditTextPreference(Context context) {
            super(context);
        }

        @Override
        public CharSequence getSummary() {
            if(super.getSummary() == null) return null;

            String summary = super.getSummary().toString();
            return String.format(summary, getText());
        }
    }

在你的xml中使用这个:

<your.package.EditTextPreference
                android:key="pref_alpha"
                android:summary="Actual value: %s"
                android:title="Title"
                android:defaultValue="default"
                />

因此，您可以使用%s而不是实际值编写摘要。

Here,all these are cut from Eclipse sample SettingsActivity. I have to copy all these too much codes to show how these android developers choose perfectly for more generalized and stable coding style. I left the codes for adapting the PreferenceActivity to tablet and greater API. public class SettingsActivity extends PreferenceActivity { @Override protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); setupSummaryUpdatablePreferencesScreen(); } private void setupSummaryUpdatablePreferencesScreen() { // In the simplified UI, fragments are not used at all and we instead // use the older PreferenceActivity APIs. // Add 'general' preferences. addPreferencesFromResource(R.xml.pref_general); // Bind the summaries of EditText/List/Dialog preferences to // their values. When their values change, their summaries are updated // to reflect the new value, per the Android Design guidelines. bindPreferenceSummaryToValue(findPreference("example_text")); bindPreferenceSummaryToValue(findPreference("example_list")); } /** * A preference value change listener that updates the preference's summary * to reflect its new value. */ private static Preference.OnPreferenceChangeListener sBindPreferenceSummaryToValueListener = new Preference.OnPreferenceChangeListener() { private String TAG = SettingsActivity.class.getSimpleName(); @Override public boolean onPreferenceChange(Preference preference, Object value) { String stringValue = value.toString(); if (preference instanceof ListPreference) { // For list preferences, look up the correct display value in // the preference's 'entries' list. ListPreference listPreference = (ListPreference) preference; int index = listPreference.findIndexOfValue(stringValue); // Set the summary to reflect the new value. preference.setSummary( index >= 0 ? listPreference.getEntries()[index] : null); } else { // For all other preferences, set the summary to the value's // simple string representation. preference.setSummary(stringValue); } Log.i(TAG, "pref changed : " + preference.getKey() + " " + value); return true; } }; /** * Binds a preference's summary to its value. More specifically, when the * preference's value is changed, its summary (line of text below the * preference title) is updated to reflect the value. The summary is also * immediately updated upon calling this method. The exact display format is * dependent on the type of preference. * * @see #sBindPreferenceSummaryToValueListener */ private static void bindPreferenceSummaryToValue(Preference preference) { // Set the listener to watch for value changes. preference.setOnPreferenceChangeListener(sBindPreferenceSummaryToValueListener); // Trigger the listener immediately with the preference's // current value. sBindPreferenceSummaryToValueListener.onPreferenceChange(preference, PreferenceManager .getDefaultSharedPreferences(preference.getContext()) .getString(preference.getKey(), "")); } } xml/pref_general.xml <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" > <!-- NOTE: EditTextPreference accepts EditText attributes. --> <!-- NOTE: EditTextPreference's summary should be set to its value by the activity code. --> <EditTextPreference android:capitalize="words" android:defaultValue="@string/pref_default_display_name" android:inputType="textCapWords" android:key="example_text" android:maxLines="1" android:selectAllOnFocus="true" android:singleLine="true" android:title="@string/pref_title_display_name" /> <!-- NOTE: Hide buttons to simplify the UI. Users can touch outside the dialog todismiss it.--> <!-- NOTE: ListPreference's summary should be set to its value by the activity code. --> <ListPreference android:defaultValue="-1" android:entries="@array/pref_example_list_titles" android:entryValues="@array/pref_example_list_values" android:key="example_list" android:negativeButtonText="@null" android:positiveButtonText="@null" android:title="@string/pref_title_add_friends_to_messages" /> </PreferenceScreen> values/strings_activity_settings.xml <resources> <!-- Strings related to Settings --> <!-- Example General settings --> <string name="pref_title_display_name">Display name</string> <string name="pref_default_display_name">John Smith</string> <string name="pref_title_add_friends_to_messages">Add friends to messages</string> <string-array name="pref_example_list_titles"> <item>Always</item> <item>When possible</item> <item>Never</item> </string-array> <string-array name="pref_example_list_values"> <item>1</item> <item>0</item> <item>-1</item> </string-array> </resources> NOTE: Actually I just want to comment like "Google's sample for PreferenceActivity is also interesting". But I haven't enough reputation points.So please don't blame me. (Sorry for bad English)

我已经看到了所有投票的答案，展示了如何用准确的当前值设置摘要，但OP也想要这样的东西:

“x天后清理消息”* <- summary，其中x是当前首选项值

以下是我实现这一目标的答案

根据ListPreference.getSummary()上的文档:

返回此ListPreference的摘要。如果摘要中有一个字符串格式标记(即。“%s”或“%1$s”)，然后是当前值 输入值将被替换在其位置上。

然而，我在几台设备上尝试了这一功能，似乎不起作用。通过一些研究，我在这个答案中找到了一个很好的解决方案。它简单地由扩展你使用的每个Preference和覆盖getSummary()组成，以按照Android文档指定的方式工作。

要将ListPreference的摘要设置为对话框中选择的值，您可以使用以下代码:

package yourpackage;

import android.content.Context;
import android.util.AttributeSet;

public class ListPreference extends android.preference.ListPreference {

    public ListPreference(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    protected void onDialogClosed(boolean positiveResult) {
        super.onDialogClosed(positiveResult);
        if (positiveResult) setSummary(getEntry());
    }

    protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
        super.onSetInitialValue(restoreValue, defaultValue);
        setSummary(getEntry());
    }
}

参考你的包。记住在你的preferences.xml中指定你的android:defaultValue作为触发onSetInitialValue()的调用。

如果您愿意，可以在调用setSummary()之前修改文本，以适合您的应用程序。

public class ProfileManagement extends PreferenceActivity implements
OnPreferenceChangeListener {
    EditTextPreference screenName;
    ListPreference sex;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            addPreferencesFromResource(R.layout.profile_management);

            screenName = (EditTextPreference) findPreference("editTextPref");
            sex = (ListPreference) findPreference("sexSelector");

            screenName.setOnPreferenceChangeListener(this);
            sex.setOnPreferenceChangeListener(this);

    }   

    @Override
    public boolean onPreferenceChange(Preference preference, Object newValue) {
        preference.setSummary(newValue.toString());
        return true;
    }
}