2 * Copyright (C) 2008 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package com.android.settings;
19 import android.content.ComponentName;
20 import android.content.Context;
21 import android.content.Intent;
22 import android.content.pm.ActivityInfo;
23 import android.content.pm.PackageManager;
24 import android.content.pm.PackageManager.NameNotFoundException;
25 import android.os.Bundle;
26 import android.preference.PreferenceActivity;
27 import android.text.TextUtils;
28 import android.util.Log;
29 import android.view.LayoutInflater;
30 import android.view.View;
31 import android.view.View.OnClickListener;
32 import android.view.ViewGroup;
33 import android.widget.ArrayAdapter;
34 import android.widget.Button;
35 import android.widget.ImageView;
36 import android.widget.ListAdapter;
37 import android.widget.Switch;
38 import android.widget.TextView;
40 import com.android.settings.bluetooth.BluetoothEnabler;
41 import com.android.settings.wifi.WifiEnabler;
43 import java.util.ArrayList;
44 import java.util.HashMap;
45 import java.util.List;
48 * Top-level settings activity to handle single pane and double pane UI layout.
50 public class Settings extends PreferenceActivity implements ButtonBarHandler {
52 private static final String LOG_TAG = "Settings";
53 private static final String META_DATA_KEY_HEADER_ID =
54 "com.android.settings.TOP_LEVEL_HEADER_ID";
55 private static final String META_DATA_KEY_FRAGMENT_CLASS =
56 "com.android.settings.FRAGMENT_CLASS";
57 private static final String META_DATA_KEY_PARENT_TITLE =
58 "com.android.settings.PARENT_FRAGMENT_TITLE";
59 private static final String META_DATA_KEY_PARENT_FRAGMENT_CLASS =
60 "com.android.settings.PARENT_FRAGMENT_CLASS";
62 private static final String SAVE_KEY_CURRENT_HEADER = "com.android.settings.CURRENT_HEADER";
63 private static final String SAVE_KEY_PARENT_HEADER = "com.android.settings.PARENT_HEADER";
65 private String mFragmentClass;
66 private int mTopLevelHeaderId;
67 private Header mFirstHeader;
68 private Header mCurrentHeader;
69 private Header mParentHeader;
70 private boolean mInLocalHeaderSwitch;
72 // TODO: Update Call Settings based on airplane mode state.
74 protected HashMap<Integer, Integer> mHeaderIndexMap = new HashMap<Integer, Integer>();
75 private List<Header> mHeaders;
78 protected void onCreate(Bundle savedInstanceState) {
79 setTheme(android.R.style.Theme_Holo_SplitActionBarWhenNarrow);
81 mInLocalHeaderSwitch = true;
82 super.onCreate(savedInstanceState);
83 mInLocalHeaderSwitch = false;
85 if (!onIsHidingHeaders() && onIsMultiPane()) {
87 // Force the title so that it doesn't get overridden by a direct launch of
88 // a specific settings screen.
89 setTitle(R.string.settings_label);
92 // Retrieve any saved state
93 if (savedInstanceState != null) {
94 mCurrentHeader = savedInstanceState.getParcelable(SAVE_KEY_CURRENT_HEADER);
95 mParentHeader = savedInstanceState.getParcelable(SAVE_KEY_PARENT_HEADER);
98 // If the current header was saved, switch to it
99 if (savedInstanceState != null && mCurrentHeader != null) {
100 //switchToHeaderLocal(mCurrentHeader);
101 showBreadCrumbs(mCurrentHeader.title, null);
104 if (mParentHeader != null) {
105 setParentTitle(mParentHeader.title, null, new OnClickListener() {
106 public void onClick(View v) {
107 switchToParent(mParentHeader.fragment);
112 // TODO Add support for android.R.id.home in all Setting's onOptionsItemSelected
113 // getActionBar().setDisplayOptions(ActionBar.DISPLAY_HOME_AS_UP,
114 // ActionBar.DISPLAY_HOME_AS_UP);
118 protected void onSaveInstanceState(Bundle outState) {
119 super.onSaveInstanceState(outState);
121 // Save the current fragment, if it is the same as originally launched
122 if (mCurrentHeader != null) {
123 outState.putParcelable(SAVE_KEY_CURRENT_HEADER, mCurrentHeader);
125 if (mParentHeader != null) {
126 outState.putParcelable(SAVE_KEY_PARENT_HEADER, mParentHeader);
131 public void onResume() {
134 ListAdapter listAdapter = getListAdapter();
135 if (listAdapter instanceof HeaderAdapter) {
136 ((HeaderAdapter) listAdapter).resume();
141 public void onPause() {
144 ListAdapter listAdapter = getListAdapter();
145 if (listAdapter instanceof HeaderAdapter) {
146 ((HeaderAdapter) listAdapter).pause();
150 private void switchToHeaderLocal(Header header) {
151 mInLocalHeaderSwitch = true;
152 switchToHeader(header);
153 mInLocalHeaderSwitch = false;
157 public void switchToHeader(Header header) {
158 if (!mInLocalHeaderSwitch) {
159 mCurrentHeader = null;
160 mParentHeader = null;
162 super.switchToHeader(header);
166 * Switch to parent fragment and store the grand parent's info
167 * @param className name of the activity wrapper for the parent fragment.
169 private void switchToParent(String className) {
170 final ComponentName cn = new ComponentName(this, className);
172 final PackageManager pm = getPackageManager();
173 final ActivityInfo parentInfo = pm.getActivityInfo(cn, PackageManager.GET_META_DATA);
175 if (parentInfo != null && parentInfo.metaData != null) {
176 String fragmentClass = parentInfo.metaData.getString(META_DATA_KEY_FRAGMENT_CLASS);
177 CharSequence fragmentTitle = parentInfo.loadLabel(pm);
178 Header parentHeader = new Header();
179 parentHeader.fragment = fragmentClass;
180 parentHeader.title = fragmentTitle;
181 mCurrentHeader = parentHeader;
183 switchToHeaderLocal(parentHeader);
185 mParentHeader = new Header();
186 mParentHeader.fragment
187 = parentInfo.metaData.getString(META_DATA_KEY_PARENT_FRAGMENT_CLASS);
188 mParentHeader.title = parentInfo.metaData.getString(META_DATA_KEY_PARENT_TITLE);
190 } catch (NameNotFoundException nnfe) {
191 Log.w(LOG_TAG, "Could not find parent activity : " + className);
196 public void onNewIntent(Intent intent) {
197 super.onNewIntent(intent);
199 // If it is not launched from history, then reset to top-level
200 if ((intent.getFlags() & Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY) == 0
201 && mFirstHeader != null && !onIsHidingHeaders() && onIsMultiPane()) {
202 switchToHeaderLocal(mFirstHeader);
206 private void highlightHeader() {
207 if (mTopLevelHeaderId != 0) {
208 Integer index = mHeaderIndexMap.get(mTopLevelHeaderId);
210 getListView().setItemChecked(index, true);
216 public Intent getIntent() {
217 Intent superIntent = super.getIntent();
218 String startingFragment = getStartingFragmentClass(superIntent);
219 // This is called from super.onCreate, isMultiPane() is not yet reliable
220 // Do not use onIsHidingHeaders either, which relies itself on this method
221 if (startingFragment != null && !onIsMultiPane()) {
222 Intent modIntent = new Intent(superIntent);
223 modIntent.putExtra(EXTRA_SHOW_FRAGMENT, startingFragment);
224 Bundle args = superIntent.getExtras();
226 args = new Bundle(args);
230 args.putParcelable("intent", superIntent);
231 modIntent.putExtra(EXTRA_SHOW_FRAGMENT_ARGUMENTS, superIntent.getExtras());
238 * Checks if the component name in the intent is different from the Settings class and
239 * returns the class name to load as a fragment.
241 protected String getStartingFragmentClass(Intent intent) {
242 if (mFragmentClass != null) return mFragmentClass;
244 String intentClass = intent.getComponent().getClassName();
245 if (intentClass.equals(getClass().getName())) return null;
247 if ("com.android.settings.ManageApplications".equals(intentClass)
248 || "com.android.settings.RunningServices".equals(intentClass)
249 || "com.android.settings.applications.StorageUse".equals(intentClass)) {
250 // Old names of manage apps.
251 intentClass = com.android.settings.applications.ManageApplications.class.getName();
258 * Override initial header when an activity-alias is causing Settings to be launched
259 * for a specific fragment encoded in the android:name parameter.
262 public Header onGetInitialHeader() {
263 String fragmentClass = getStartingFragmentClass(super.getIntent());
264 if (fragmentClass != null) {
265 Header header = new Header();
266 header.fragment = fragmentClass;
267 header.title = getTitle();
268 header.fragmentArguments = getIntent().getExtras();
269 mCurrentHeader = header;
277 public Intent onBuildStartFragmentIntent(String fragmentName, Bundle args,
278 int titleRes, int shortTitleRes) {
279 Intent intent = super.onBuildStartFragmentIntent(fragmentName, args,
280 titleRes, shortTitleRes);
281 intent.setClass(this, SubSettings.class);
286 * Populate the activity with the top-level headers.
289 public void onBuildHeaders(List<Header> headers) {
290 loadHeadersFromResource(R.xml.settings_headers, headers);
292 updateHeaderList(headers);
297 private void updateHeaderList(List<Header> target) {
299 while (i < target.size()) {
300 Header header = target.get(i);
301 // Ids are integers, so downcasting
302 int id = (int) header.id;
303 if (id == R.id.dock_settings) {
304 if (!needsDockSettings())
305 target.remove(header);
306 } else if (id == R.id.operator_settings || id == R.id.manufacturer_settings) {
307 Utils.updateHeaderToSpecificActivityFromMetaDataOrRemove(this, target, header);
308 } else if (id == R.id.wifi_settings) {
309 // Remove WiFi Settings if WiFi service is not available.
310 if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_WIFI)) {
311 target.remove(header);
313 } else if (id == R.id.bluetooth_settings) {
314 // Remove Bluetooth Settings if Bluetooth service is not available.
315 if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH)) {
316 target.remove(header);
320 // Increment if the current one wasn't removed by the Utils code.
321 if (target.get(i) == header) {
322 // Hold on to the first header, when we need to reset to the top-level
323 if (mFirstHeader == null &&
324 HeaderAdapter.getHeaderType(header) != HeaderAdapter.HEADER_TYPE_CATEGORY) {
325 mFirstHeader = header;
327 mHeaderIndexMap.put(id, i);
333 private boolean needsDockSettings() {
334 return getResources().getBoolean(R.bool.has_dock_settings);
337 private void getMetaData() {
339 ActivityInfo ai = getPackageManager().getActivityInfo(getComponentName(),
340 PackageManager.GET_META_DATA);
341 if (ai == null || ai.metaData == null) return;
342 mTopLevelHeaderId = ai.metaData.getInt(META_DATA_KEY_HEADER_ID);
343 mFragmentClass = ai.metaData.getString(META_DATA_KEY_FRAGMENT_CLASS);
345 // Check if it has a parent specified and create a Header object
346 final int parentHeaderTitleRes = ai.metaData.getInt(META_DATA_KEY_PARENT_TITLE);
347 String parentFragmentClass = ai.metaData.getString(META_DATA_KEY_PARENT_FRAGMENT_CLASS);
348 if (parentFragmentClass != null) {
349 mParentHeader = new Header();
350 mParentHeader.fragment = parentFragmentClass;
351 if (parentHeaderTitleRes != 0) {
352 mParentHeader.title = getResources().getString(parentHeaderTitleRes);
355 } catch (NameNotFoundException nnfe) {
361 public boolean hasNextButton() {
362 return super.hasNextButton();
366 public Button getNextButton() {
367 return super.getNextButton();
370 private static class HeaderAdapter extends ArrayAdapter<Header> {
371 static final int HEADER_TYPE_CATEGORY = 0;
372 static final int HEADER_TYPE_NORMAL = 1;
373 static final int HEADER_TYPE_SWITCH = 2;
374 private static final int HEADER_TYPE_COUNT = HEADER_TYPE_SWITCH + 1;
376 private final WifiEnabler mWifiEnabler;
377 private final BluetoothEnabler mBluetoothEnabler;
379 private static class HeaderViewHolder {
386 private LayoutInflater mInflater;
388 static int getHeaderType(Header header) {
389 if (header.fragment == null && header.intent == null) {
390 return HEADER_TYPE_CATEGORY;
391 } else if (header.id == R.id.wifi_settings || header.id == R.id.bluetooth_settings) {
392 return HEADER_TYPE_SWITCH;
394 return HEADER_TYPE_NORMAL;
399 public int getItemViewType(int position) {
400 Header header = getItem(position);
401 return getHeaderType(header);
405 public boolean areAllItemsEnabled() {
406 return false; // because of categories
410 public boolean isEnabled(int position) {
411 return getItemViewType(position) != HEADER_TYPE_CATEGORY;
415 public int getViewTypeCount() {
416 return HEADER_TYPE_COUNT;
420 public boolean hasStableIds() {
424 public HeaderAdapter(Context context, List<Header> objects) {
425 super(context, 0, objects);
426 mInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
428 // Temp Switches provided as placeholder until the adapter replaces these with actual
429 // Switches inflated from their layouts. Must be done before adapter is set in super
430 mWifiEnabler = new WifiEnabler(context, new Switch(context));
431 mBluetoothEnabler = new BluetoothEnabler(context, new Switch(context));
435 public View getView(int position, View convertView, ViewGroup parent) {
436 HeaderViewHolder holder;
437 Header header = getItem(position);
438 int headerType = getHeaderType(header);
441 if (convertView == null) {
442 holder = new HeaderViewHolder();
443 switch (headerType) {
444 case HEADER_TYPE_CATEGORY:
445 view = new TextView(getContext(), null,
446 android.R.attr.listSeparatorTextViewStyle);
447 holder.title = (TextView) view;
450 case HEADER_TYPE_SWITCH:
451 view = mInflater.inflate(R.layout.preference_header_switch_item, parent,
453 holder.icon = (ImageView) view.findViewById(R.id.icon);
454 holder.title = (TextView)
455 view.findViewById(com.android.internal.R.id.title);
456 holder.summary = (TextView)
457 view.findViewById(com.android.internal.R.id.summary);
458 holder.switch_ = (Switch) view.findViewById(R.id.switchWidget);
461 case HEADER_TYPE_NORMAL:
462 view = mInflater.inflate(
463 com.android.internal.R.layout.preference_header_item, parent,
465 holder.icon = (ImageView) view.findViewById(com.android.internal.R.id.icon);
466 holder.title = (TextView)
467 view.findViewById(com.android.internal.R.id.title);
468 holder.summary = (TextView)
469 view.findViewById(com.android.internal.R.id.summary);
475 holder = (HeaderViewHolder) view.getTag();
478 // All view fields must be updated every time, because the view may be recycled
479 switch (headerType) {
480 case HEADER_TYPE_CATEGORY:
481 holder.title.setText(header.getTitle(getContext().getResources()));
484 case HEADER_TYPE_SWITCH:
485 // Would need a different treatment if the main menu had more switches
486 if (header.id == R.id.wifi_settings) {
487 mWifiEnabler.setSwitch(holder.switch_);
489 mBluetoothEnabler.setSwitch(holder.switch_);
491 // No break, fall through on purpose to update common fields
494 case HEADER_TYPE_NORMAL:
495 holder.icon.setImageResource(header.iconRes);
496 holder.title.setText(header.getTitle(getContext().getResources()));
497 CharSequence summary = header.getSummary(getContext().getResources());
498 if (!TextUtils.isEmpty(summary)) {
499 holder.summary.setVisibility(View.VISIBLE);
500 holder.summary.setText(summary);
502 holder.summary.setVisibility(View.GONE);
510 public void resume() {
511 mWifiEnabler.resume();
512 mBluetoothEnabler.resume();
515 public void pause() {
516 mWifiEnabler.pause();
517 mBluetoothEnabler.pause();
522 public void setListAdapter(ListAdapter adapter) {
523 if (mHeaders == null) {
524 mHeaders = new ArrayList<Header>();
525 // When the saved state provides the list of headers, onBuildHeaders is not called
526 // Copy the list of Headers from the adapter, preserving their order
527 for (int i = 0; i < adapter.getCount(); i++) {
528 mHeaders.add((Header) adapter.getItem(i));
532 // Ignore the adapter provided by PreferenceActivity and substitute ours instead
533 super.setListAdapter(new HeaderAdapter(this, mHeaders));
537 * Settings subclasses for launching independently.
539 public static class BluetoothSettingsActivity extends Settings { /* empty */ }
540 public static class WirelessSettingsActivity extends Settings { /* empty */ }
541 public static class TetherSettingsActivity extends Settings { /* empty */ }
542 public static class VpnSettingsActivity extends Settings { /* empty */ }
543 public static class DateTimeSettingsActivity extends Settings { /* empty */ }
544 public static class StorageSettingsActivity extends Settings { /* empty */ }
545 public static class WifiSettingsActivity extends Settings { /* empty */ }
546 public static class InputMethodAndLanguageSettingsActivity extends Settings { /* empty */ }
547 public static class InputMethodAndSubtypeEnablerActivity extends Settings { /* empty */ }
548 public static class LocalePickerActivity extends Settings { /* empty */ }
549 public static class UserDictionarySettingsActivity extends Settings { /* empty */ }
550 public static class SoundSettingsActivity extends Settings { /* empty */ }
551 public static class DisplaySettingsActivity extends Settings { /* empty */ }
552 public static class DeviceInfoSettingsActivity extends Settings { /* empty */ }
553 public static class ApplicationSettingsActivity extends Settings { /* empty */ }
554 public static class ManageApplicationsActivity extends Settings { /* empty */ }
555 public static class StorageUseActivity extends Settings { /* empty */ }
556 public static class DevelopmentSettingsActivity extends Settings { /* empty */ }
557 public static class AccessibilitySettingsActivity extends Settings { /* empty */ }
558 public static class SecuritySettingsActivity extends Settings { /* empty */ }
559 public static class LocationSettingsActivity extends Settings { /* empty */ }
560 public static class PrivacySettingsActivity extends Settings { /* empty */ }
561 public static class DockSettingsActivity extends Settings { /* empty */ }
562 public static class RunningServicesActivity extends Settings { /* empty */ }
563 public static class ManageAccountsSettingsActivity extends Settings { /* empty */ }
564 public static class PowerUsageSummaryActivity extends Settings { /* empty */ }
565 public static class AccountSyncSettingsActivity extends Settings { /* empty */ }
566 public static class AccountSyncSettingsInAddAccountActivity extends Settings { /* empty */ }
567 public static class CryptKeeperSettingsActivity extends Settings { /* empty */ }
568 public static class DeviceAdminSettingsActivity extends Settings { /* empty */ }
569 public static class DataUsageSummaryActivity extends Settings { /* empty */ }
570 public static class AdvancedWifiSettingsActivity extends Settings { /* empty */ }
571 public static class AdvancedBluetoothSettingsActivity extends Settings { /* empty */ }
572 public static class TextToSpeechSettingsActivity extends Settings { /* empty */ }