private void updateTimeoutPreferenceDescription(long currentTimeout) { ListPreference preference = mScreenTimeoutPreference; String summary; if (currentTimeout < 0) { // Unsupported value summary = ""; } else { final CharSequence[] entries = preference.getEntries(); final CharSequence[] values = preference.getEntryValues(); if (entries == null || entries.length == 0) { summary = ""; } else { int best = 0; for (int i = 0; i < values.length; i++) { long timeout = Long.parseLong(values[i].toString()); if (currentTimeout >= timeout) { best = i; } } summary = preference.getContext().getString(R.string.screen_timeout_summary, entries[best]); } } preference.setSummary(summary); }