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Disabling the activate button when paused am: de5df8b090 am: 779237e37f am: 24547155e...
[android-x86/packages-apps-Settings.git] / src / com / android / settings / SettingsActivity.java
1 /*
2  * Copyright (C) 2014 The Android Open Source Project
3  *
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
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
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.
15  */
16
17 package com.android.settings;
18
19 import android.app.ActionBar;
20 import android.app.ActivityManager;
21 import android.app.Fragment;
22 import android.app.FragmentManager;
23 import android.app.FragmentTransaction;
24 import android.content.BroadcastReceiver;
25 import android.content.ComponentName;
26 import android.content.Context;
27 import android.content.Intent;
28 import android.content.IntentFilter;
29 import android.content.SharedPreferences;
30 import android.content.pm.ActivityInfo;
31 import android.content.pm.PackageManager;
32 import android.content.pm.PackageManager.NameNotFoundException;
33 import android.graphics.Bitmap;
34 import android.graphics.Canvas;
35 import android.graphics.drawable.Drawable;
36 import android.os.AsyncTask;
37 import android.os.Bundle;
38 import android.os.UserHandle;
39 import android.os.UserManager;
40 import android.support.annotation.VisibleForTesting;
41 import android.support.v14.preference.PreferenceFragment;
42 import android.support.v7.preference.Preference;
43 import android.support.v7.preference.PreferenceManager;
44 import android.text.TextUtils;
45 import android.transition.TransitionManager;
46 import android.util.Log;
47 import android.view.View;
48 import android.view.View.OnClickListener;
49 import android.view.ViewGroup;
50 import android.widget.Button;
51 import android.widget.Toolbar;
52 import com.android.internal.util.ArrayUtils;
53 import com.android.settings.Settings.WifiSettingsActivity;
54 import com.android.settings.backup.BackupSettingsActivity;
55 import com.android.settings.core.gateway.SettingsGateway;
56 import com.android.settings.core.instrumentation.MetricsFeatureProvider;
57 import com.android.settings.core.instrumentation.SharedPreferencesLogger;
58 import com.android.settings.dashboard.DashboardFeatureProvider;
59 import com.android.settings.dashboard.DashboardSummary;
60 import com.android.settings.development.DevelopmentSettings;
61 import com.android.settings.overlay.FeatureFactory;
62 import com.android.settings.search.SearchActivity;
63 import com.android.settings.wfd.WifiDisplaySettings;
64 import com.android.settings.widget.SwitchBar;
65 import com.android.settingslib.drawer.DashboardCategory;
66 import com.android.settingslib.drawer.SettingsDrawerActivity;
67 import java.util.ArrayList;
68 import java.util.List;
69 import java.util.Set;
70
71 public class SettingsActivity extends SettingsDrawerActivity
72         implements PreferenceManager.OnPreferenceTreeClickListener,
73         PreferenceFragment.OnPreferenceStartFragmentCallback,
74         ButtonBarHandler, FragmentManager.OnBackStackChangedListener, OnClickListener {
75
76     private static final String LOG_TAG = "Settings";
77
78     // Constants for state save/restore
79     private static final String SAVE_KEY_CATEGORIES = ":settings:categories";
80     @VisibleForTesting
81     static final String SAVE_KEY_SHOW_HOME_AS_UP = ":settings:show_home_as_up";
82
83     /**
84      * When starting this activity, the invoking Intent can contain this extra
85      * string to specify which fragment should be initially displayed.
86      * <p/>Starting from Key Lime Pie, when this argument is passed in, the activity
87      * will call isValidFragment() to confirm that the fragment class name is valid for this
88      * activity.
89      */
90     public static final String EXTRA_SHOW_FRAGMENT = ":settings:show_fragment";
91
92     /**
93      * The metrics category constant for logging source when a setting fragment is opened.
94      */
95     public static final String EXTRA_SOURCE_METRICS_CATEGORY = ":settings:source_metrics";
96
97     /**
98      * When starting this activity and using {@link #EXTRA_SHOW_FRAGMENT},
99      * this extra can also be specified to supply a Bundle of arguments to pass
100      * to that fragment when it is instantiated during the initial creation
101      * of the activity.
102      */
103     public static final String EXTRA_SHOW_FRAGMENT_ARGUMENTS = ":settings:show_fragment_args";
104
105     /**
106      * Fragment "key" argument passed thru {@link #EXTRA_SHOW_FRAGMENT_ARGUMENTS}
107      */
108     public static final String EXTRA_FRAGMENT_ARG_KEY = ":settings:fragment_args_key";
109
110     public static final String BACK_STACK_PREFS = ":settings:prefs";
111
112     // extras that allow any preference activity to be launched as part of a wizard
113
114     // show Back and Next buttons? takes boolean parameter
115     // Back will then return RESULT_CANCELED and Next RESULT_OK
116     protected static final String EXTRA_PREFS_SHOW_BUTTON_BAR = "extra_prefs_show_button_bar";
117
118     // add a Skip button?
119     private static final String EXTRA_PREFS_SHOW_SKIP = "extra_prefs_show_skip";
120
121     // specify custom text for the Back or Next buttons, or cause a button to not appear
122     // at all by setting it to null
123     protected static final String EXTRA_PREFS_SET_NEXT_TEXT = "extra_prefs_set_next_text";
124     protected static final String EXTRA_PREFS_SET_BACK_TEXT = "extra_prefs_set_back_text";
125
126     /**
127      * When starting this activity and using {@link #EXTRA_SHOW_FRAGMENT},
128      * those extra can also be specify to supply the title or title res id to be shown for
129      * that fragment.
130      */
131     public static final String EXTRA_SHOW_FRAGMENT_TITLE = ":settings:show_fragment_title";
132     /**
133      * The package name used to resolve the title resource id.
134      */
135     public static final String EXTRA_SHOW_FRAGMENT_TITLE_RES_PACKAGE_NAME =
136             ":settings:show_fragment_title_res_package_name";
137     public static final String EXTRA_SHOW_FRAGMENT_TITLE_RESID =
138             ":settings:show_fragment_title_resid";
139     public static final String EXTRA_SHOW_FRAGMENT_AS_SHORTCUT =
140             ":settings:show_fragment_as_shortcut";
141
142     public static final String EXTRA_SHOW_FRAGMENT_AS_SUBSETTING =
143             ":settings:show_fragment_as_subsetting";
144
145     @Deprecated
146     public static final String EXTRA_HIDE_DRAWER = ":settings:hide_drawer";
147
148     public static final String META_DATA_KEY_FRAGMENT_CLASS =
149         "com.android.settings.FRAGMENT_CLASS";
150
151     private static final String EXTRA_UI_OPTIONS = "settings:ui_options";
152
153     private static final int REQUEST_SUGGESTION = 42;
154
155     private String mFragmentClass;
156
157     private CharSequence mInitialTitle;
158     private int mInitialTitleResId;
159
160     private static final String[] LIKE_SHORTCUT_INTENT_ACTION_ARRAY = {
161             "android.settings.APPLICATION_DETAILS_SETTINGS"
162     };
163
164     private SharedPreferences mDevelopmentPreferences;
165     private SharedPreferences.OnSharedPreferenceChangeListener mDevelopmentPreferencesListener;
166
167     private boolean mBatteryPresent = true;
168     private BroadcastReceiver mBatteryInfoReceiver = new BroadcastReceiver() {
169         @Override
170         public void onReceive(Context context, Intent intent) {
171             String action = intent.getAction();
172             if (Intent.ACTION_BATTERY_CHANGED.equals(action)) {
173                 boolean batteryPresent = Utils.isBatteryPresent(intent);
174
175                 if (mBatteryPresent != batteryPresent) {
176                     mBatteryPresent = batteryPresent;
177                     updateTilesList();
178                 }
179             }
180         }
181     };
182
183     private SwitchBar mSwitchBar;
184
185     private Button mNextButton;
186
187     @VisibleForTesting
188     boolean mDisplayHomeAsUpEnabled;
189
190     private boolean mIsShowingDashboard;
191     private boolean mIsShortcut;
192
193     private ViewGroup mContent;
194
195     private MetricsFeatureProvider mMetricsFeatureProvider;
196
197     // Categories
198     private ArrayList<DashboardCategory> mCategories = new ArrayList<>();
199
200     private DashboardFeatureProvider mDashboardFeatureProvider;
201     private ComponentName mCurrentSuggestion;
202
203     public SwitchBar getSwitchBar() {
204         return mSwitchBar;
205     }
206
207     @Override
208     public boolean onPreferenceStartFragment(PreferenceFragment caller, Preference pref) {
209         startPreferencePanel(caller, pref.getFragment(), pref.getExtras(), -1, pref.getTitle(),
210                 null, 0);
211         return true;
212     }
213
214     @Override
215     public boolean onPreferenceTreeClick(Preference preference) {
216         return false;
217     }
218
219     @Override
220     public SharedPreferences getSharedPreferences(String name, int mode) {
221         if (name.equals(getPackageName() + "_preferences")) {
222             return new SharedPreferencesLogger(this, getMetricsTag());
223         }
224         return super.getSharedPreferences(name, mode);
225     }
226
227     private String getMetricsTag() {
228         String tag = getClass().getName();
229         if (getIntent() != null && getIntent().hasExtra(EXTRA_SHOW_FRAGMENT)) {
230             tag = getIntent().getStringExtra(EXTRA_SHOW_FRAGMENT);
231         }
232         if (tag.startsWith("com.android.settings.")) {
233             tag = tag.replace("com.android.settings.", "");
234         }
235         return tag;
236     }
237
238     private static boolean isShortCutIntent(final Intent intent) {
239         Set<String> categories = intent.getCategories();
240         return (categories != null) && categories.contains("com.android.settings.SHORTCUT");
241     }
242
243     private static boolean isLikeShortCutIntent(final Intent intent) {
244         String action = intent.getAction();
245         if (action == null) {
246             return false;
247         }
248         for (int i = 0; i < LIKE_SHORTCUT_INTENT_ACTION_ARRAY.length; i++) {
249             if (LIKE_SHORTCUT_INTENT_ACTION_ARRAY[i].equals(action)) return true;
250         }
251         return false;
252     }
253
254     @Override
255     protected void onCreate(Bundle savedState) {
256         super.onCreate(savedState);
257         long startTime = System.currentTimeMillis();
258
259         final FeatureFactory factory = FeatureFactory.getFactory(this);
260
261         mDashboardFeatureProvider = factory.getDashboardFeatureProvider(this);
262         mMetricsFeatureProvider = factory.getMetricsFeatureProvider();
263
264         // Should happen before any call to getIntent()
265         getMetaData();
266
267         final Intent intent = getIntent();
268         if (intent.hasExtra(EXTRA_UI_OPTIONS)) {
269             getWindow().setUiOptions(intent.getIntExtra(EXTRA_UI_OPTIONS, 0));
270         }
271
272         mDevelopmentPreferences = getSharedPreferences(DevelopmentSettings.PREF_FILE,
273                 Context.MODE_PRIVATE);
274
275         // Getting Intent properties can only be done after the super.onCreate(...)
276         final String initialFragmentName = intent.getStringExtra(EXTRA_SHOW_FRAGMENT);
277
278         mIsShortcut = isShortCutIntent(intent) || isLikeShortCutIntent(intent) ||
279                 intent.getBooleanExtra(EXTRA_SHOW_FRAGMENT_AS_SHORTCUT, false);
280
281         final ComponentName cn = intent.getComponent();
282         final String className = cn.getClassName();
283
284         mIsShowingDashboard = className.equals(Settings.class.getName());
285
286         // This is a "Sub Settings" when:
287         // - this is a real SubSettings
288         // - or :settings:show_fragment_as_subsetting is passed to the Intent
289         final boolean isSubSettings = this instanceof SubSettings ||
290                 intent.getBooleanExtra(EXTRA_SHOW_FRAGMENT_AS_SUBSETTING, false);
291
292         // If this is a sub settings, then apply the SubSettings Theme for the ActionBar content
293         // insets
294         if (isSubSettings) {
295             setTheme(R.style.Theme_SubSettings);
296         }
297
298         setContentView(mIsShowingDashboard ?
299                 R.layout.settings_main_dashboard : R.layout.settings_main_prefs);
300
301         mContent = findViewById(R.id.main_content);
302
303         getFragmentManager().addOnBackStackChangedListener(this);
304
305         if (savedState != null) {
306             // We are restarting from a previous saved state; used that to initialize, instead
307             // of starting fresh.
308             setTitleFromIntent(intent);
309
310             ArrayList<DashboardCategory> categories =
311                     savedState.getParcelableArrayList(SAVE_KEY_CATEGORIES);
312             if (categories != null) {
313                 mCategories.clear();
314                 mCategories.addAll(categories);
315                 setTitleFromBackStack();
316             }
317
318             mDisplayHomeAsUpEnabled = savedState.getBoolean(SAVE_KEY_SHOW_HOME_AS_UP);
319
320         } else {
321             launchSettingFragment(initialFragmentName, isSubSettings, intent);
322         }
323
324         if (mIsShowingDashboard) {
325             findViewById(R.id.search_bar).setVisibility(View.VISIBLE);
326             findViewById(R.id.action_bar).setVisibility(View.GONE);
327             Toolbar toolbar = findViewById(R.id.search_action_bar);
328             toolbar.setOnClickListener(this);
329             setActionBar(toolbar);
330
331             // Please forgive me for what I am about to do.
332             //
333             // Need to make the navigation icon non-clickable so that the entire card is clickable
334             // and goes to the search UI. Also set the background to null so there's no ripple.
335             View navView = toolbar.getNavigationView();
336             navView.setClickable(false);
337             navView.setBackground(null);
338         }
339
340         ActionBar actionBar = getActionBar();
341         if (actionBar != null) {
342             actionBar.setDisplayHomeAsUpEnabled(mDisplayHomeAsUpEnabled);
343             actionBar.setHomeButtonEnabled(mDisplayHomeAsUpEnabled);
344         }
345         mSwitchBar = findViewById(R.id.switch_bar);
346         if (mSwitchBar != null) {
347             mSwitchBar.setMetricsTag(getMetricsTag());
348         }
349
350         // see if we should show Back/Next buttons
351         if (intent.getBooleanExtra(EXTRA_PREFS_SHOW_BUTTON_BAR, false)) {
352
353             View buttonBar = findViewById(R.id.button_bar);
354             if (buttonBar != null) {
355                 buttonBar.setVisibility(View.VISIBLE);
356
357                 Button backButton = (Button)findViewById(R.id.back_button);
358                 backButton.setOnClickListener(new OnClickListener() {
359                     public void onClick(View v) {
360                         setResult(RESULT_CANCELED, null);
361                         finish();
362                     }
363                 });
364                 Button skipButton = (Button)findViewById(R.id.skip_button);
365                 skipButton.setOnClickListener(new OnClickListener() {
366                     public void onClick(View v) {
367                         setResult(RESULT_OK, null);
368                         finish();
369                     }
370                 });
371                 mNextButton = (Button)findViewById(R.id.next_button);
372                 mNextButton.setOnClickListener(new OnClickListener() {
373                     public void onClick(View v) {
374                         setResult(RESULT_OK, null);
375                         finish();
376                     }
377                 });
378
379                 // set our various button parameters
380                 if (intent.hasExtra(EXTRA_PREFS_SET_NEXT_TEXT)) {
381                     String buttonText = intent.getStringExtra(EXTRA_PREFS_SET_NEXT_TEXT);
382                     if (TextUtils.isEmpty(buttonText)) {
383                         mNextButton.setVisibility(View.GONE);
384                     }
385                     else {
386                         mNextButton.setText(buttonText);
387                     }
388                 }
389                 if (intent.hasExtra(EXTRA_PREFS_SET_BACK_TEXT)) {
390                     String buttonText = intent.getStringExtra(EXTRA_PREFS_SET_BACK_TEXT);
391                     if (TextUtils.isEmpty(buttonText)) {
392                         backButton.setVisibility(View.GONE);
393                     }
394                     else {
395                         backButton.setText(buttonText);
396                     }
397                 }
398                 if (intent.getBooleanExtra(EXTRA_PREFS_SHOW_SKIP, false)) {
399                     skipButton.setVisibility(View.VISIBLE);
400                 }
401             }
402         }
403
404         if (DEBUG_TIMING) {
405             Log.d(LOG_TAG, "onCreate took " + (System.currentTimeMillis() - startTime) + " ms");
406         }
407     }
408
409     @VisibleForTesting
410     void launchSettingFragment(String initialFragmentName, boolean isSubSettings, Intent intent) {
411         if (!mIsShowingDashboard && initialFragmentName != null) {
412             // UP will be shown only if it is a sub settings
413             if (mIsShortcut) {
414                 mDisplayHomeAsUpEnabled = isSubSettings;
415             } else if (isSubSettings) {
416                 mDisplayHomeAsUpEnabled = true;
417             } else {
418                 mDisplayHomeAsUpEnabled = false;
419             }
420             setTitleFromIntent(intent);
421
422             Bundle initialArguments = intent.getBundleExtra(EXTRA_SHOW_FRAGMENT_ARGUMENTS);
423             switchToFragment(initialFragmentName, initialArguments, true, false,
424                 mInitialTitleResId, mInitialTitle, false);
425         } else {
426             // Show search icon as up affordance if we are displaying the main Dashboard
427             mDisplayHomeAsUpEnabled = true;
428             mInitialTitleResId = R.string.dashboard_title;
429
430             switchToFragment(DashboardSummary.class.getName(), null /* args */, false, false,
431                 mInitialTitleResId, mInitialTitle, false);
432         }
433     }
434
435     private void setTitleFromIntent(Intent intent) {
436         final int initialTitleResId = intent.getIntExtra(EXTRA_SHOW_FRAGMENT_TITLE_RESID, -1);
437         if (initialTitleResId > 0) {
438             mInitialTitle = null;
439             mInitialTitleResId = initialTitleResId;
440
441             final String initialTitleResPackageName = intent.getStringExtra(
442                     EXTRA_SHOW_FRAGMENT_TITLE_RES_PACKAGE_NAME);
443             if (initialTitleResPackageName != null) {
444                 try {
445                     Context authContext = createPackageContextAsUser(initialTitleResPackageName,
446                             0 /* flags */, new UserHandle(UserHandle.myUserId()));
447                     mInitialTitle = authContext.getResources().getText(mInitialTitleResId);
448                     setTitle(mInitialTitle);
449                     mInitialTitleResId = -1;
450                     return;
451                 } catch (NameNotFoundException e) {
452                     Log.w(LOG_TAG, "Could not find package" + initialTitleResPackageName);
453                 }
454             } else {
455                 setTitle(mInitialTitleResId);
456             }
457         } else {
458             mInitialTitleResId = -1;
459             final String initialTitle = intent.getStringExtra(EXTRA_SHOW_FRAGMENT_TITLE);
460             mInitialTitle = (initialTitle != null) ? initialTitle : getTitle();
461             setTitle(mInitialTitle);
462         }
463     }
464
465     @Override
466     public void onBackStackChanged() {
467         setTitleFromBackStack();
468     }
469
470     private void setTitleFromBackStack() {
471         final int count = getFragmentManager().getBackStackEntryCount();
472
473         if (count == 0) {
474             if (mInitialTitleResId > 0) {
475                 setTitle(mInitialTitleResId);
476             } else {
477                 setTitle(mInitialTitle);
478             }
479             return;
480         }
481
482         FragmentManager.BackStackEntry bse = getFragmentManager().getBackStackEntryAt(count - 1);
483         setTitleFromBackStackEntry(bse);
484     }
485
486     private void setTitleFromBackStackEntry(FragmentManager.BackStackEntry bse) {
487         final CharSequence title;
488         final int titleRes = bse.getBreadCrumbTitleRes();
489         if (titleRes > 0) {
490             title = getText(titleRes);
491         } else {
492             title = bse.getBreadCrumbTitle();
493         }
494         if (title != null) {
495             setTitle(title);
496         }
497     }
498
499     @Override
500     protected void onSaveInstanceState(Bundle outState) {
501         super.onSaveInstanceState(outState);
502         saveState(outState);
503     }
504
505     /**
506      * For testing purposes to avoid crashes from final variables in Activity's onSaveInstantState.
507      */
508     @VisibleForTesting
509     void saveState(Bundle outState) {
510         if (mCategories.size() > 0) {
511             outState.putParcelableArrayList(SAVE_KEY_CATEGORIES, mCategories);
512         }
513
514         outState.putBoolean(SAVE_KEY_SHOW_HOME_AS_UP, mDisplayHomeAsUpEnabled);
515     }
516
517     @Override
518     protected void onRestoreInstanceState(Bundle savedInstanceState) {
519         super.onRestoreInstanceState(savedInstanceState);
520
521         mDisplayHomeAsUpEnabled = savedInstanceState.getBoolean(SAVE_KEY_SHOW_HOME_AS_UP);
522     }
523
524     @Override
525     protected void onResume() {
526         super.onResume();
527
528         mDevelopmentPreferencesListener = (sharedPreferences, key) -> updateTilesList();
529         mDevelopmentPreferences.registerOnSharedPreferenceChangeListener(
530                 mDevelopmentPreferencesListener);
531
532         registerReceiver(mBatteryInfoReceiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
533
534         updateTilesList();
535     }
536
537     @Override
538     protected void onPause() {
539         super.onPause();
540         mDevelopmentPreferences.unregisterOnSharedPreferenceChangeListener(
541                 mDevelopmentPreferencesListener);
542         mDevelopmentPreferencesListener = null;
543         unregisterReceiver(mBatteryInfoReceiver);
544     }
545
546     @Override
547     public void setTaskDescription(ActivityManager.TaskDescription taskDescription) {
548         final Bitmap icon = getBitmapFromXmlResource(R.drawable.ic_launcher_settings);
549         taskDescription.setIcon(icon);
550         super.setTaskDescription(taskDescription);
551     }
552
553     protected boolean isValidFragment(String fragmentName) {
554         // Almost all fragments are wrapped in this,
555         // except for a few that have their own activities.
556         for (int i = 0; i < SettingsGateway.ENTRY_FRAGMENTS.length; i++) {
557             if (SettingsGateway.ENTRY_FRAGMENTS[i].equals(fragmentName)) return true;
558         }
559         return false;
560     }
561
562     @Override
563     public Intent getIntent() {
564         Intent superIntent = super.getIntent();
565         String startingFragment = getStartingFragmentClass(superIntent);
566         // This is called from super.onCreate, isMultiPane() is not yet reliable
567         // Do not use onIsHidingHeaders either, which relies itself on this method
568         if (startingFragment != null) {
569             Intent modIntent = new Intent(superIntent);
570             modIntent.putExtra(EXTRA_SHOW_FRAGMENT, startingFragment);
571             Bundle args = superIntent.getExtras();
572             if (args != null) {
573                 args = new Bundle(args);
574             } else {
575                 args = new Bundle();
576             }
577             args.putParcelable("intent", superIntent);
578             modIntent.putExtra(EXTRA_SHOW_FRAGMENT_ARGUMENTS, args);
579             return modIntent;
580         }
581         return superIntent;
582     }
583
584     /**
585      * Checks if the component name in the intent is different from the Settings class and
586      * returns the class name to load as a fragment.
587      */
588     private String getStartingFragmentClass(Intent intent) {
589         if (mFragmentClass != null) return mFragmentClass;
590
591         String intentClass = intent.getComponent().getClassName();
592         if (intentClass.equals(getClass().getName())) return null;
593
594         if ("com.android.settings.ManageApplications".equals(intentClass)
595                 || "com.android.settings.RunningServices".equals(intentClass)
596                 || "com.android.settings.applications.StorageUse".equals(intentClass)) {
597             // Old names of manage apps.
598             intentClass = com.android.settings.applications.ManageApplications.class.getName();
599         }
600
601         return intentClass;
602     }
603
604     /**
605      * Start a new fragment containing a preference panel.  If the preferences
606      * are being displayed in multi-pane mode, the given fragment class will
607      * be instantiated and placed in the appropriate pane.  If running in
608      * single-pane mode, a new activity will be launched in which to show the
609      * fragment.
610      *
611      * @param fragmentClass Full name of the class implementing the fragment.
612      * @param args Any desired arguments to supply to the fragment.
613      * @param titleRes Optional resource identifier of the title of this
614      * fragment.
615      * @param titleText Optional text of the title of this fragment.
616      * @param resultTo Optional fragment that result data should be sent to.
617      * If non-null, resultTo.onActivityResult() will be called when this
618      * preference panel is done.  The launched panel must use
619      * {@link #finishPreferencePanel(Fragment, int, Intent)} when done.
620      * @param resultRequestCode If resultTo is non-null, this is the caller's
621      * request code to be received with the result.
622      */
623     public void startPreferencePanel(Fragment caller, String fragmentClass, Bundle args,
624             int titleRes, CharSequence titleText, Fragment resultTo, int resultRequestCode) {
625         String title = null;
626         if (titleRes < 0) {
627             if (titleText != null) {
628                 title = titleText.toString();
629             } else {
630                 // There not much we can do in that case
631                 title = "";
632             }
633         }
634         Utils.startWithFragment(this, fragmentClass, args, resultTo, resultRequestCode,
635                 titleRes, title, mIsShortcut, mMetricsFeatureProvider.getMetricsCategory(caller));
636     }
637
638     /**
639      * Start a new fragment in a new activity containing a preference panel for a given user. If the
640      * preferences are being displayed in multi-pane mode, the given fragment class will be
641      * instantiated and placed in the appropriate pane. If running in single-pane mode, a new
642      * activity will be launched in which to show the fragment.
643      *
644      * @param fragmentClass Full name of the class implementing the fragment.
645      * @param args Any desired arguments to supply to the fragment.
646      * @param titleRes Optional resource identifier of the title of this fragment.
647      * @param titleText Optional text of the title of this fragment.
648      * @param userHandle The user for which the panel has to be started.
649      */
650     public void startPreferencePanelAsUser(Fragment caller, String fragmentClass,
651             Bundle args, int titleRes, CharSequence titleText, UserHandle userHandle) {
652         // This is a workaround.
653         //
654         // Calling startWithFragmentAsUser() without specifying FLAG_ACTIVITY_NEW_TASK to the intent
655         // starting the fragment could cause a native stack corruption. See b/17523189. However,
656         // adding that flag and start the preference panel with the same UserHandler will make it
657         // impossible to use back button to return to the previous screen. See b/20042570.
658         //
659         // We work around this issue by adding FLAG_ACTIVITY_NEW_TASK to the intent, while doing
660         // another check here to call startPreferencePanel() instead of startWithFragmentAsUser()
661         // when we're calling it as the same user.
662         if (userHandle.getIdentifier() == UserHandle.myUserId()) {
663             startPreferencePanel(caller, fragmentClass, args, titleRes, titleText, null, 0);
664         } else {
665             String title = null;
666             if (titleRes < 0) {
667                 if (titleText != null) {
668                     title = titleText.toString();
669                 } else {
670                     // There not much we can do in that case
671                     title = "";
672                 }
673             }
674             Utils.startWithFragmentAsUser(this, fragmentClass, args, titleRes, title,
675                     mIsShortcut, mMetricsFeatureProvider.getMetricsCategory(caller), userHandle);
676         }
677     }
678
679     /**
680      * Called by a preference panel fragment to finish itself.
681      *
682      * @param caller The fragment that is asking to be finished.
683      * @param resultCode Optional result code to send back to the original
684      * launching fragment.
685      * @param resultData Optional result data to send back to the original
686      * launching fragment.
687      */
688     public void finishPreferencePanel(Fragment caller, int resultCode, Intent resultData) {
689         setResult(resultCode, resultData);
690         finish();
691     }
692
693     /**
694      * Start a new fragment.
695      *
696      * @param fragment The fragment to start
697      * @param push If true, the current fragment will be pushed onto the back stack.  If false,
698      * the current fragment will be replaced.
699      */
700     public void startPreferenceFragment(Fragment fragment, boolean push) {
701         FragmentTransaction transaction = getFragmentManager().beginTransaction();
702         transaction.replace(R.id.main_content, fragment);
703         if (push) {
704             transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
705             transaction.addToBackStack(BACK_STACK_PREFS);
706         } else {
707             transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
708         }
709         transaction.commitAllowingStateLoss();
710     }
711
712     /**
713      * Switch to a specific Fragment with taking care of validation, Title and BackStack
714      */
715     private Fragment switchToFragment(String fragmentName, Bundle args, boolean validate,
716             boolean addToBackStack, int titleResId, CharSequence title, boolean withTransition) {
717         if (validate && !isValidFragment(fragmentName)) {
718             throw new IllegalArgumentException("Invalid fragment for this activity: "
719                     + fragmentName);
720         }
721         Fragment f = Fragment.instantiate(this, fragmentName, args);
722         FragmentTransaction transaction = getFragmentManager().beginTransaction();
723         transaction.replace(R.id.main_content, f);
724         if (withTransition) {
725             TransitionManager.beginDelayedTransition(mContent);
726         }
727         if (addToBackStack) {
728             transaction.addToBackStack(SettingsActivity.BACK_STACK_PREFS);
729         }
730         if (titleResId > 0) {
731             transaction.setBreadCrumbTitle(titleResId);
732         } else if (title != null) {
733             transaction.setBreadCrumbTitle(title);
734         }
735         transaction.commitAllowingStateLoss();
736         getFragmentManager().executePendingTransactions();
737         return f;
738     }
739
740     private void updateTilesList() {
741         // Generally the items that are will be changing from these updates will
742         // not be in the top list of tiles, so run it in the background and the
743         // SettingsDrawerActivity will pick up on the updates automatically.
744         AsyncTask.execute(new Runnable() {
745             @Override
746             public void run() {
747                 doUpdateTilesList();
748             }
749         });
750     }
751
752     private void doUpdateTilesList() {
753         PackageManager pm = getPackageManager();
754         final UserManager um = UserManager.get(this);
755         final boolean isAdmin = um.isAdminUser();
756         boolean somethingChanged = false;
757         String packageName = getPackageName();
758         somethingChanged = setTileEnabled(
759                 new ComponentName(packageName, WifiSettingsActivity.class.getName()),
760                 pm.hasSystemFeature(PackageManager.FEATURE_WIFI), isAdmin) || somethingChanged;
761
762         somethingChanged = setTileEnabled(new ComponentName(packageName,
763                         Settings.BluetoothSettingsActivity.class.getName()),
764                 pm.hasSystemFeature(PackageManager.FEATURE_BLUETOOTH), isAdmin)
765                 || somethingChanged;
766
767         boolean isDataPlanFeatureEnabled = FeatureFactory.getFactory(this)
768                 .getDataPlanFeatureProvider()
769                 .isEnabled();
770
771         // When the data plan feature flag is turned on we disable DataUsageSummaryActivity
772         // and enable DataPlanUsageSummaryActivity. When the feature flag is turned off we do the
773         // reverse.
774
775         // Disable DataUsageSummaryActivity if the data plan feature flag is turned on otherwise
776         // disable DataPlanUsageSummaryActivity.
777         somethingChanged = setTileEnabled(
778                 new ComponentName(packageName,
779                         isDataPlanFeatureEnabled
780                                 ? Settings.DataUsageSummaryActivity.class.getName()
781                                 : Settings.DataPlanUsageSummaryActivity.class.getName()),
782                 false /* enabled */,
783                 isAdmin) || somethingChanged;
784
785         // Enable DataUsageSummaryActivity if the data plan feature flag is turned on otherwise
786         // enable DataPlanUsageSummaryActivity.
787         somethingChanged = setTileEnabled(
788                 new ComponentName(packageName,
789                         isDataPlanFeatureEnabled
790                                 ? Settings.DataPlanUsageSummaryActivity.class.getName()
791                                 : Settings.DataUsageSummaryActivity.class.getName()),
792                 Utils.isBandwidthControlEnabled() /* enabled */,
793                 isAdmin) || somethingChanged;
794
795         somethingChanged = setTileEnabled(new ComponentName(packageName,
796                         Settings.SimSettingsActivity.class.getName()),
797                 Utils.showSimCardTile(this), isAdmin)
798                 || somethingChanged;
799
800         somethingChanged = setTileEnabled(new ComponentName(packageName,
801                         Settings.PowerUsageSummaryActivity.class.getName()),
802                 mBatteryPresent, isAdmin) || somethingChanged;
803
804         somethingChanged = setTileEnabled(new ComponentName(packageName,
805                         Settings.UserSettingsActivity.class.getName()),
806                 UserHandle.MU_ENABLED && UserManager.supportsMultipleUsers()
807                         && !Utils.isMonkeyRunning(), isAdmin)
808                 || somethingChanged;
809
810         somethingChanged = setTileEnabled(new ComponentName(packageName,
811                         Settings.NetworkDashboardActivity.class.getName()),
812                 !UserManager.isDeviceInDemoMode(this), isAdmin)
813                 || somethingChanged;
814
815         somethingChanged = setTileEnabled(new ComponentName(packageName,
816                         Settings.ConnectedDeviceDashboardActivity.class.getName()),
817                 !UserManager.isDeviceInDemoMode(this), isAdmin)
818                 || somethingChanged;
819
820         somethingChanged = setTileEnabled(new ComponentName(packageName,
821                         Settings.DateTimeSettingsActivity.class.getName()),
822                 !UserManager.isDeviceInDemoMode(this), isAdmin)
823                 || somethingChanged;
824
825         somethingChanged = setTileEnabled(new ComponentName(packageName,
826                         Settings.PrintSettingsActivity.class.getName()),
827                 pm.hasSystemFeature(PackageManager.FEATURE_PRINTING), isAdmin)
828                 || somethingChanged;
829
830         final boolean showDev = mDevelopmentPreferences.getBoolean(
831                 DevelopmentSettings.PREF_SHOW, android.os.Build.TYPE.equals("eng"))
832                 && !um.hasUserRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES);
833         somethingChanged = setTileEnabled(new ComponentName(packageName,
834                         Settings.DevelopmentSettingsActivity.class.getName()),
835                 showDev, isAdmin)
836                 || somethingChanged;
837
838         // Enable/disable backup settings depending on whether the user is admin.
839         somethingChanged = setTileEnabled(new ComponentName(packageName,
840                 BackupSettingsActivity.class.getName()), true, isAdmin)
841                 || somethingChanged;
842
843         somethingChanged = setTileEnabled(new ComponentName(packageName,
844                         Settings.WifiDisplaySettingsActivity.class.getName()),
845                 WifiDisplaySettings.isAvailable(this), isAdmin)
846                 || somethingChanged;
847
848         if (UserHandle.MU_ENABLED && !isAdmin) {
849
850             // When on restricted users, disable all extra categories (but only the settings ones).
851             final List<DashboardCategory> categories = mDashboardFeatureProvider.getAllCategories();
852             synchronized (categories) {
853                 for (DashboardCategory category : categories) {
854                     final int tileCount = category.getTilesCount();
855                     for (int i = 0; i < tileCount; i++) {
856                         final ComponentName component = category.getTile(i).intent.getComponent();
857
858                         final String name = component.getClassName();
859                         final boolean isEnabledForRestricted = ArrayUtils.contains(
860                                 SettingsGateway.SETTINGS_FOR_RESTRICTED, name);
861                         if (packageName.equals(component.getPackageName())
862                                 && !isEnabledForRestricted) {
863                             somethingChanged = setTileEnabled(component, false, isAdmin)
864                                     || somethingChanged;
865                         }
866                     }
867                 }
868             }
869         }
870
871         // Final step, refresh categories.
872         if (somethingChanged) {
873             Log.d(LOG_TAG, "Enabled state changed for some tiles, reloading all categories");
874             updateCategories();
875         } else {
876             Log.d(LOG_TAG, "No enabled state changed, skipping updateCategory call");
877         }
878     }
879
880     /**
881      * @return whether or not the enabled state actually changed.
882      */
883     private boolean setTileEnabled(ComponentName component, boolean enabled, boolean isAdmin) {
884         if (UserHandle.MU_ENABLED && !isAdmin && getPackageName().equals(component.getPackageName())
885                 && !ArrayUtils.contains(SettingsGateway.SETTINGS_FOR_RESTRICTED,
886                 component.getClassName())) {
887             enabled = false;
888         }
889         return setTileEnabled(component, enabled);
890     }
891
892     private void getMetaData() {
893         try {
894             ActivityInfo ai = getPackageManager().getActivityInfo(getComponentName(),
895                     PackageManager.GET_META_DATA);
896             if (ai == null || ai.metaData == null) return;
897             mFragmentClass = ai.metaData.getString(META_DATA_KEY_FRAGMENT_CLASS);
898         } catch (NameNotFoundException nnfe) {
899             // No recovery
900             Log.d(LOG_TAG, "Cannot get Metadata for: " + getComponentName().toString());
901         }
902     }
903
904     // give subclasses access to the Next button
905     public boolean hasNextButton() {
906         return mNextButton != null;
907     }
908
909     public Button getNextButton() {
910         return mNextButton;
911     }
912
913     @Override
914     public boolean shouldUpRecreateTask(Intent targetIntent) {
915         return super.shouldUpRecreateTask(new Intent(this, SettingsActivity.class));
916     }
917
918     public void startSuggestion(Intent intent) {
919         if (intent == null || ActivityManager.isUserAMonkey()) {
920             return;
921         }
922         mCurrentSuggestion = intent.getComponent();
923         startActivityForResult(intent, REQUEST_SUGGESTION);
924     }
925
926     @Override
927     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
928         if (requestCode == REQUEST_SUGGESTION && mCurrentSuggestion != null
929                 && resultCode != RESULT_CANCELED) {
930             getPackageManager().setComponentEnabledSetting(mCurrentSuggestion,
931                     PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);
932         }
933         super.onActivityResult(requestCode, resultCode, data);
934     }
935
936     @VisibleForTesting
937     Bitmap getBitmapFromXmlResource(int drawableRes) {
938         Drawable drawable = getResources().getDrawable(drawableRes, getTheme());
939         Canvas canvas = new Canvas();
940         Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(),
941                 drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
942         canvas.setBitmap(bitmap);
943         drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
944         drawable.draw(canvas);
945
946         return bitmap;
947     }
948
949     @Override
950     public void onClick(View v) {
951         Intent intent = new Intent(this, SearchActivity.class);
952         startActivity(intent);
953     }
954 }