Java tutorial
/* * Copyright (C) 2013 Jorrit "Chainfire" Jongma * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package info.balthaus.geologrenewed.app.ui; import android.annotation.SuppressLint; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.DialogInterface.OnClickListener; import android.content.Intent; import android.content.SharedPreferences; import android.content.SharedPreferences.OnSharedPreferenceChangeListener; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.res.Resources; import android.net.Uri; import android.os.Bundle; import android.preference.*; import android.preference.Preference.OnPreferenceClickListener; import android.support.v4.content.LocalBroadcastManager; import android.view.View; import info.balthaus.geologrenewed.app.R; import java.util.Locale; @SuppressLint("NewApi") public class SettingsFragment extends PreferenceListFragment implements OnSharedPreferenceChangeListener { public static final String APP_TITLE = "GeoLog"; public static final String APP_COPYRIGHT = "Copyright (C) 2013 - Chainfire"; public static final String APP_WEBSITE_URL = "http://forum.xda-developers.com/showthread.php?t=2386317"; public static final String NOTIFY_BROADCAST = "info.balthaus.geologrenewed.app.PREFERENCES.UPDATED"; public static final String EXTRA_KEY = "info.balthaus.geologrenewed.app.EXTRA.KEY"; public static final String PREF_FOLLOW_SHOWN = "follow_shown"; public static final String PREF_CURRENT_PROFILE = "current_profile"; public static final float METER_FEET_RATIO = 3.28084f; public static final String PREF_UNITS = "pref_units"; public static final String VALUE_UNITS_METRIC = "metric"; public static final String VALUE_UNITS_IMPERIAL = "imperial"; public static final String PREF_UNITS_DEFAULT = VALUE_UNITS_METRIC; private SharedPreferences prefs = null; private Resources resources = null; private String S(int id) { return resources.getString(id); } @SuppressWarnings("unused") private String[] SA(int id) { return resources.getStringArray(id); } private ListPreference prefUnits = null; @Override protected PreferenceScreen createPreferenceHierarchy(PreferenceManager prefMan) { PreferenceScreen root = prefMan.createPreferenceScreen(getActivity()); resources = getActivity().getResources(); prefs = PreferenceManager.getDefaultSharedPreferences(getActivity()); String app = APP_TITLE; PackageManager pm = getActivity().getPackageManager(); if (pm != null) { try { PackageInfo pi = pm.getPackageInfo(getActivity().getPackageName(), 0); if (pi != null) { app = app + " v" + pi.versionName; } } catch (Exception e) { } } Preference copyright = new Preference(getActivity()); copyright.setTitle(app); copyright.setSummary(APP_COPYRIGHT + (char) 10 + "Twitter: @ChainfireXDA" + (char) 10 + "G+: http://google.com/+Chainfire" + (char) 10 + S(R.string.settings_tap_xda)); copyright.setKey("copyright"); copyright.setEnabled(true); copyright.setOnPreferenceClickListener(new OnPreferenceClickListener() { public boolean onPreferenceClick(Preference preference) { try { Intent i = new Intent(Intent.ACTION_VIEW); i.setData(Uri.parse(APP_WEBSITE_URL)); startActivity(i); } catch (Exception e) { // no http handler installed (wtf, it happens) } return false; } }); root.addPreference(copyright); /* maybe one day if (!proPresent) { Preference upgrade = new Preference(getActivity()); upgrade.setTitle(R.string.settings_upgrade); upgrade.setSummary(R.string.settings_upgrade_description); upgrade.setOnPreferenceClickListener(new OnPreferenceClickListener() { public boolean onPreferenceClick(Preference preference) { try { Intent i = new Intent(Intent.ACTION_VIEW); i.setData(Uri.parse("market://details?id=eu.chainfire.geolog.pro")); startActivity(i); } catch (Exception e) { // no market installed } return false; } }); root.addPreference(upgrade); } */ PreferenceCategory catUnits = Pref.Category(getActivity(), root, R.string.settings_category_units); prefUnits = Pref.List(getActivity(), catUnits, getString(R.string.settings_units_caption), "", getString(R.string.settings_units_popup), PREF_UNITS, PREF_UNITS_DEFAULT, new String[] { getString(R.string.settings_units_metric), getString(R.string.settings_units_imperial) }, new String[] { VALUE_UNITS_METRIC, VALUE_UNITS_IMPERIAL }); PreferenceCategory catMarket = Pref.Category(getActivity(), root, R.string.settings_category_market); Pref.Preference(getActivity(), catMarket, R.string.settings_market, R.string.settings_market_description, true, new OnPreferenceClickListener() { public boolean onPreferenceClick(Preference preference) { try { Intent i = new Intent(Intent.ACTION_VIEW); i.setData(Uri.parse("market://search?q=pub:Chainfire")); startActivity(i); } catch (Exception e) { // market not installed } return false; } }); Pref.Preference(getActivity(), catMarket, R.string.follow_pref_title, R.string.follow_pref_desc, true, new OnPreferenceClickListener() { @Override public boolean onPreferenceClick(Preference preference) { showFollow(false); return false; } }); int shown_follow = prefs.getInt(PREF_FOLLOW_SHOWN, 0); if (shown_follow == 0) { prefs.edit().putInt(PREF_FOLLOW_SHOWN, 1).commit(); showFollow(true); } updatePrefs(null); return root; } private void showFollow(boolean startup) { if (startup) { AlertDialog.Builder builder = (new AlertDialog.Builder(getActivity())) .setTitle(R.string.follow_popup_title).setMessage(R.string.follow_popup_desc) .setPositiveButton(R.string.follow_twitter, new OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Intent i = new Intent(Intent.ACTION_VIEW); i.setData(Uri.parse("http://www.twitter.com/ChainfireXDA")); startActivity(i); } }).setNeutralButton(R.string.follow_gplus, new OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Intent i = new Intent(Intent.ACTION_VIEW); i.setData(Uri.parse("http://google.com/+Chainfire")); startActivity(i); } }).setNegativeButton(R.string.follow_nothanks, new OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { } }); try { builder.show(); } catch (Exception e) { } } else { AlertDialog.Builder builder = (new AlertDialog.Builder(getActivity())) .setTitle(R.string.follow_popup_title) .setItems(new CharSequence[] { S(R.string.follow_twitter), S(R.string.follow_gplus) }, new OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { if (which == 0) { Intent i = new Intent(Intent.ACTION_VIEW); i.setData(Uri.parse("http://www.twitter.com/ChainfireXDA")); startActivity(i); } else if (which == 1) { Intent i = new Intent(Intent.ACTION_VIEW); i.setData(Uri.parse("http://plus.google.com/b/113517319477420052449/")); startActivity(i); } } }) .setNegativeButton(R.string.generic_close, null); try { builder.show(); } catch (Exception e) { } } } @Override public void onViewCreated(View view, Bundle savedInstanceState) { super.onViewCreated(view, savedInstanceState); prefs.registerOnSharedPreferenceChangeListener(this); } @Override public void onDestroyView() { prefs.unregisterOnSharedPreferenceChangeListener(this); super.onDestroyView(); } public void updatePrefs(String key) { try { if ((key == null) || (key.equals(PREF_UNITS))) { int id = R.string.settings_units_metric; if (prefs.getString(PREF_UNITS, PREF_UNITS_DEFAULT).equals(VALUE_UNITS_IMPERIAL)) id = R.string.settings_units_imperial; prefUnits.setSummary(String.format(Locale.ENGLISH, "[ %s ]", getString(id))); } Intent i = new Intent(NOTIFY_BROADCAST); i.putExtra(EXTRA_KEY, key); LocalBroadcastManager.getInstance(getActivity()).sendBroadcast(i); } catch (Exception e) { } } @Override public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) { updatePrefs(key); } }