package link.standen.michael.slideshow; import android.annotation.TargetApi; import android.content.Context; import android.content.res.Configuration; import android.os.Build; import android.os.Bundle; import android.preference.ListPreference; import android.preference.Preference; import android.preference.PreferenceActivity; import android.preference.SwitchPreference; import android.support.v7.app.ActionBar; import android.preference.PreferenceFragment; import android.view.MenuItem; /** * A {@link PreferenceActivity} that presents a set of application settings. On * handset devices, settings are presented as a single list. On tablets, * settings are split by category, with category headers shown to the left of * the list of settings. * <p> * See <a href="http://developer.android.com/design/patterns/settings.html"> * Android Design: Settings</a> for design guidelines and the <a * href="http://developer.android.com/guide/topics/ui/settings.html">Settings * API Guide</a> for more information on developing a Settings UI. */ public class SettingsActivity extends AppCompatPreferenceActivity { /** * A preference value change listener that updates the preference's summary * to reflect its new value. */ private final static Preference.OnPreferenceChangeListener sBindPreferenceSummaryToValueListener = new Preference.OnPreferenceChangeListener() { @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); } return true; } }; /** * Helper method to determine if the device has an extra-large screen. For * example, 10" tablets are extra-large. */ private static boolean isXLargeTablet(Context context) { return (context.getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_XLARGE; } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setupActionBar(); } /** * Set up the {@link android.app.ActionBar}, if the API is available. */ private void setupActionBar() { ActionBar actionBar = getSupportActionBar(); if (actionBar != null) { // Show the Up button in the action bar. actionBar.setDisplayHomeAsUpEnabled(true); } } /** * {@inheritDoc} */ @Override public boolean onIsMultiPane() { return isXLargeTablet(this); } /** * This method stops fragment injection in malicious applications. * Make sure to deny any unknown fragments here. */ protected boolean isValidFragment(String fragmentName) { return PreferenceFragment.class.getName().equals(fragmentName) || SlideshowPreferenceFragment.class.getName().equals(fragmentName); } /** * This fragment shows general preferences only. */ @TargetApi(Build.VERSION_CODES.HONEYCOMB) public static class SlideshowPreferenceFragment extends PreferenceFragment { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); addPreferencesFromResource(R.xml.preferences); setHasOptionsMenu(true); final SwitchPreference reloadFolderPref = (SwitchPreference)findPreference("reload_folder"); final SwitchPreference reverseOrderPref = (SwitchPreference)findPreference("reverse_order"); final SwitchPreference randomOrderPref = (SwitchPreference)findPreference("random_order"); // Enabling reverse disables random reverseOrderPref.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() { @Override public boolean onPreferenceChange(Preference preference, Object newValue) { if (Boolean.TRUE.equals(newValue)){ randomOrderPref.setChecked(false); } return true; } }); // Enabling random disables reverse randomOrderPref.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() { @Override public boolean onPreferenceChange(Preference preference, Object newValue) { if (Boolean.TRUE.equals(newValue)){ reverseOrderPref.setChecked(false); } return true; } }); final SwitchPreference rememberLocationPref = (SwitchPreference)findPreference("remember_location"); final SwitchPreference autoStartPref = (SwitchPreference)findPreference("auto_start"); // Disabling remember location disables auto start rememberLocationPref.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() { @Override public boolean onPreferenceChange(Preference preference, Object newValue) { if (Boolean.FALSE.equals(newValue)){ autoStartPref.setChecked(false); } return true; } }); final SwitchPreference glideSupportPref = (SwitchPreference)findPreference("glide_image_strategy"); final SwitchPreference preloadPref = (SwitchPreference)findPreference("preload_images"); final SwitchPreference gifPref = (SwitchPreference)findPreference("enable_gif_support"); // Disabling glide support disables preloading and GIF support glideSupportPref.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() { @Override public boolean onPreferenceChange(Preference preference, Object newValue) { if (Boolean.FALSE.equals(newValue)){ preloadPref.setChecked(false); gifPref.setChecked(false); } return true; } }); final SwitchPreference imageDetailsPref = (SwitchPreference)findPreference("image_details"); final SwitchPreference imageDetailsDuringPref = (SwitchPreference)findPreference("image_details_during"); // Disabling remember location disables auto start imageDetailsPref.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() { @Override public boolean onPreferenceChange(Preference preference, Object newValue) { if (Boolean.FALSE.equals(newValue)){ imageDetailsDuringPref.setChecked(false); } return true; } }); // Bind the summaries of EditText/List/Dialog/Ringtone 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")); } @Override public boolean onOptionsItemSelected(MenuItem item) { int id = item.getItemId(); if (id == android.R.id.home) { getActivity().onBackPressed(); return true; } return super.onOptionsItemSelected(item); } } }