1 package net.ktnx.mobileledger;
3 import android.annotation.TargetApi;
4 import android.content.Context;
5 import android.content.Intent;
6 import android.content.res.Configuration;
7 import android.media.Ringtone;
8 import android.media.RingtoneManager;
9 import android.net.Uri;
10 import android.os.Build;
11 import android.os.Bundle;
12 import android.preference.ListPreference;
13 import android.preference.Preference;
14 import android.preference.PreferenceActivity;
15 import android.preference.PreferenceFragment;
16 import android.preference.PreferenceManager;
17 import android.preference.RingtonePreference;
18 import android.support.v4.app.NavUtils;
19 import android.support.v7.app.ActionBar;
20 import android.text.TextUtils;
21 import android.view.MenuItem;
23 import java.util.List;
26 * A {@link PreferenceActivity} that presents a set of application settings. On
27 * handset devices, settings are presented as a single list. On tablets,
28 * settings are split by category, with category headers shown to the left of
29 * the list of settings.
31 * See <a href="http://developer.android.com/design/patterns/settings.html">
32 * Android Design: Settings</a> for design guidelines and the <a
33 * href="http://developer.android.com/guide/topics/ui/settings.html">Settings
34 * API Guide</a> for more information on developing a Settings UI.
36 public class SettingsActivity extends AppCompatPreferenceActivity {
37 public static String PREF_KEY_SHOW_ONLY_STARRED_ACCOUNTS = "pref_show_only_starred_accounts";
40 * A preference value change listener that updates the preference's summary
41 * to reflect its new value.
43 private static Preference.OnPreferenceChangeListener sBindPreferenceSummaryToValueListener = (preference, value) -> {
44 String stringValue = value.toString();
46 AccountSummary.preferences_changed();
48 if (preference instanceof ListPreference) {
49 // For list preferences, look up the correct display value in
50 // the preference's 'entries' list.
51 ListPreference listPreference = (ListPreference) preference;
52 int index = listPreference.findIndexOfValue(stringValue);
54 // Set the summary to reflect the new value.
55 preference.setSummary(
57 ? listPreference.getEntries()[index]
60 } else if (preference instanceof RingtonePreference) {
61 // For ringtone preferences, look up the correct display value
62 // using RingtoneManager.
63 if (TextUtils.isEmpty(stringValue)) {
64 // Empty values correspond to 'silent' (no ringtone).
65 preference.setSummary(R.string.pref_ringtone_silent);
68 Ringtone ringtone = RingtoneManager.getRingtone(
69 preference.getContext(), Uri.parse(stringValue));
71 if (ringtone == null) {
72 // Clear the summary if there was a lookup error.
73 preference.setSummary(null);
75 // Set the summary to reflect the new ringtone display
77 String name = ringtone.getTitle(preference.getContext());
78 preference.setSummary(name);
82 // For all other preferences, set the summary to the value's
83 // simple string representation.
84 preference.setSummary(stringValue);
91 * Helper method to determine if the device has an extra-large screen. For
92 * example, 10" tablets are extra-large.
94 private static boolean isXLargeTablet(Context context) {
95 return (context.getResources().getConfiguration().screenLayout
96 & Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_XLARGE;
100 * Binds a preference's summary to its value. More specifically, when the
101 * preference's value is changed, its summary (line of text below the
102 * preference title) is updated to reflect the value. The summary is also
103 * immediately updated upon calling this method. The exact display format is
104 * dependent on the type of preference.
106 * @see #sBindPreferenceSummaryToValueListener
108 private static void bindPreferenceSummaryToValue(Preference preference) {
109 // Set the listener to watch for value changes.
110 preference.setOnPreferenceChangeListener(sBindPreferenceSummaryToValueListener);
112 // Trigger the listener immediately with the preference's
114 sBindPreferenceSummaryToValueListener.onPreferenceChange(preference,
116 .getDefaultSharedPreferences(preference.getContext())
117 .getString(preference.getKey(), ""));
121 protected void onCreate(Bundle savedInstanceState) {
122 super.onCreate(savedInstanceState);
127 * Set up the {@link android.app.ActionBar}, if the API is available.
129 private void setupActionBar() {
130 ActionBar actionBar = getSupportActionBar();
131 if (actionBar != null) {
132 // Show the Up button in the action bar.
133 actionBar.setDisplayHomeAsUpEnabled(true);
138 public boolean onMenuItemSelected(int featureId, MenuItem item) {
139 int id = item.getItemId();
140 if (id == android.R.id.home) {
141 if (!super.onMenuItemSelected(featureId, item)) {
142 NavUtils.navigateUpFromSameTask(this);
146 return super.onMenuItemSelected(featureId, item);
153 public boolean onIsMultiPane() {
154 return isXLargeTablet(this);
161 @TargetApi(Build.VERSION_CODES.HONEYCOMB)
162 public void onBuildHeaders(List<Header> target) {
163 loadHeadersFromResource(R.xml.pref_headers, target);
167 * This method stops fragment injection in malicious applications.
168 * Make sure to deny any unknown fragments here.
170 protected boolean isValidFragment(String fragmentName) {
171 return PreferenceFragment.class.getName().equals(fragmentName)
172 || BackendPreferenceFragment.class.getName().equals(fragmentName)
173 || DataSyncPreferenceFragment.class.getName().equals(fragmentName)
174 || NotificationPreferenceFragment.class.getName().equals(fragmentName)
175 || InterfacePreferenceFragment.class.getName().equals(fragmentName);
179 * This fragment shows general preferences only. It is used when the
180 * activity is showing a two-pane settings UI.
182 @TargetApi(Build.VERSION_CODES.HONEYCOMB)
183 public static class BackendPreferenceFragment extends PreferenceFragment {
185 public void onCreate(Bundle savedInstanceState) {
186 super.onCreate(savedInstanceState);
187 addPreferencesFromResource(R.xml.pref_backend);
188 setHasOptionsMenu(true);
190 // Bind the summaries of EditText/List/Dialog/Ringtone preferences
191 // to their values. When their values change, their summaries are
192 // updated to reflect the new value, per the Android Design
194 bindPreferenceSummaryToValue(findPreference("backend_url"));
195 bindPreferenceSummaryToValue(findPreference("backend_auth_user"));
200 public boolean onOptionsItemSelected(MenuItem item) {
201 int id = item.getItemId();
202 if (id == android.R.id.home) {
203 startActivity(new Intent(getActivity(), SettingsActivity.class));
206 return super.onOptionsItemSelected(item);
211 * This fragment shows general preferences only. It is used when the
212 * activity is showing a two-pane settings UI.
214 @TargetApi(Build.VERSION_CODES.HONEYCOMB)
216 class InterfacePreferenceFragment extends PreferenceFragment {
219 void onCreate(Bundle savedInstanceState) {
220 super.onCreate(savedInstanceState);
221 addPreferencesFromResource(R.xml.pref_interface);
222 setHasOptionsMenu(true);
224 // Bind the summaries of EditText/List/Dialog/Ringtone preferences
225 // to their values. When their values change, their summaries are
226 // updated to reflect the new value, per the Android Design
233 boolean onOptionsItemSelected(MenuItem item) {
234 int id = item.getItemId();
235 if (id == android.R.id.home) {
236 startActivity(new Intent(getActivity(), SettingsActivity.class));
239 return super.onOptionsItemSelected(item);
244 * This fragment shows notification preferences only. It is used when the
245 * activity is showing a two-pane settings UI.
247 @TargetApi(Build.VERSION_CODES.HONEYCOMB)
248 public static class NotificationPreferenceFragment extends PreferenceFragment {
250 public void onCreate(Bundle savedInstanceState) {
251 super.onCreate(savedInstanceState);
252 addPreferencesFromResource(R.xml.pref_notification);
253 setHasOptionsMenu(true);
255 // Bind the summaries of EditText/List/Dialog/Ringtone preferences
256 // to their values. When their values change, their summaries are
257 // updated to reflect the new value, per the Android Design
259 bindPreferenceSummaryToValue(findPreference("notifications_new_message_ringtone"));
263 public boolean onOptionsItemSelected(MenuItem item) {
264 int id = item.getItemId();
265 if (id == android.R.id.home) {
266 startActivity(new Intent(getActivity(), SettingsActivity.class));
269 return super.onOptionsItemSelected(item);
274 * This fragment shows data and sync preferences only. It is used when the
275 * activity is showing a two-pane settings UI.
277 @TargetApi(Build.VERSION_CODES.HONEYCOMB)
278 public static class DataSyncPreferenceFragment extends PreferenceFragment {
280 public void onCreate(Bundle savedInstanceState) {
281 super.onCreate(savedInstanceState);
282 addPreferencesFromResource(R.xml.pref_data_sync);
283 setHasOptionsMenu(true);
285 // Bind the summaries of EditText/List/Dialog/Ringtone preferences
286 // to their values. When their values change, their summaries are
287 // updated to reflect the new value, per the Android Design
289 bindPreferenceSummaryToValue(findPreference("sync_frequency"));
293 public boolean onOptionsItemSelected(MenuItem item) {
294 int id = item.getItemId();
295 if (id == android.R.id.home) {
296 startActivity(new Intent(getActivity(), SettingsActivity.class));
299 return super.onOptionsItemSelected(item);