PreferencesDecorator.java 文件源码

protected void decorateSeekPreference(final SeekBarPreference textPrefs) {
    final CharSequence summary = textPrefs.getSummary();
    summaries.put(textPrefs.getKey(), summary);

    final int value = textPrefs.getValue();

    setPreferenceSummary(textPrefs, "" + value);

    addListener(textPrefs, new OnPreferenceChangeListener() {

        @Override
        public boolean onPreferenceChange(final Preference preference, final Object newValue) {
            setPreferenceSummary(textPrefs, (String) newValue);
            return true;
        }
    });
}