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1 /*
2  * Copyright (C) 2018 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
5  * except in compliance with the License. You may obtain a copy of the License at
6  *
7  *      http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software distributed under the
10  * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
11  * KIND, either express or implied. See the License for the specific language governing
12  * permissions and limitations under the License.
13  */
14 
15 package com.android.settings.datausage;
16 
17 import static android.net.NetworkPolicyManager.POLICY_REJECT_METERED_BACKGROUND;
18 
19 import android.app.Activity;
20 import android.app.settings.SettingsEnums;
21 import android.content.Context;
22 import android.content.Intent;
23 import android.content.pm.ApplicationInfo;
24 import android.content.pm.PackageManager;
25 import android.graphics.drawable.Drawable;
26 import android.net.NetworkTemplate;
27 import android.os.Bundle;
28 import android.os.Process;
29 import android.os.UserHandle;
30 import android.telephony.SubscriptionManager;
31 import android.util.ArraySet;
32 import android.util.IconDrawableFactory;
33 import android.util.Log;
34 import android.view.View;
35 import android.widget.AdapterView;
36 
37 import androidx.annotation.VisibleForTesting;
38 import androidx.loader.app.LoaderManager;
39 import androidx.loader.content.Loader;
40 import androidx.preference.Preference;
41 import androidx.preference.Preference.OnPreferenceChangeListener;
42 import androidx.preference.PreferenceCategory;
43 import androidx.recyclerview.widget.DefaultItemAnimator;
44 import androidx.recyclerview.widget.RecyclerView;
45 
46 import com.android.settings.R;
47 import com.android.settings.applications.AppInfoBase;
48 import com.android.settings.network.SubscriptionUtil;
49 import com.android.settings.widget.EntityHeaderController;
50 import com.android.settingslib.AppItem;
51 import com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
52 import com.android.settingslib.RestrictedLockUtilsInternal;
53 import com.android.settingslib.RestrictedSwitchPreference;
54 import com.android.settingslib.net.NetworkCycleDataForUid;
55 import com.android.settingslib.net.NetworkCycleDataForUidLoader;
56 import com.android.settingslib.net.UidDetail;
57 import com.android.settingslib.net.UidDetailProvider;
58 
59 import java.util.ArrayList;
60 import java.util.List;
61 
62 public class AppDataUsage extends DataUsageBaseFragment implements OnPreferenceChangeListener,
63         DataSaverBackend.Listener {
64 
65     private static final String TAG = "AppDataUsage";
66 
67     static final String ARG_APP_ITEM = "app_item";
68     static final String ARG_NETWORK_TEMPLATE = "network_template";
69     static final String ARG_NETWORK_CYCLES = "network_cycles";
70     static final String ARG_SELECTED_CYCLE = "selected_cycle";
71 
72     private static final String KEY_TOTAL_USAGE = "total_usage";
73     private static final String KEY_FOREGROUND_USAGE = "foreground_usage";
74     private static final String KEY_BACKGROUND_USAGE = "background_usage";
75     private static final String KEY_APP_SETTINGS = "app_settings";
76     private static final String KEY_RESTRICT_BACKGROUND = "restrict_background";
77     private static final String KEY_APP_LIST = "app_list";
78     private static final String KEY_CYCLE = "cycle";
79     private static final String KEY_UNRESTRICTED_DATA = "unrestricted_data_saver";
80 
81     private static final int LOADER_APP_USAGE_DATA = 2;
82     private static final int LOADER_APP_PREF = 3;
83 
84     private PackageManager mPackageManager;
85     private final ArraySet<String> mPackages = new ArraySet<>();
86     private Preference mTotalUsage;
87     private Preference mForegroundUsage;
88     private Preference mBackgroundUsage;
89     private Preference mAppSettings;
90     private RestrictedSwitchPreference mRestrictBackground;
91     private PreferenceCategory mAppList;
92 
93     private Drawable mIcon;
94     @VisibleForTesting
95     CharSequence mLabel;
96     @VisibleForTesting
97     String mPackageName;
98     private CycleAdapter mCycleAdapter;
99 
100     private List<NetworkCycleDataForUid> mUsageData;
101     @VisibleForTesting
102     NetworkTemplate mTemplate;
103     private AppItem mAppItem;
104     private Intent mAppSettingsIntent;
105     private SpinnerPreference mCycle;
106     private RestrictedSwitchPreference mUnrestrictedData;
107     private DataSaverBackend mDataSaverBackend;
108     private Context mContext;
109     private ArrayList<Long> mCycles;
110     private long mSelectedCycle;
111     private boolean mIsLoading;
112 
isSimHardwareVisible(Context context)113     public boolean isSimHardwareVisible(Context context) {
114         return SubscriptionUtil.isSimHardwareVisible(context);
115     }
116 
117     @Override
onCreate(Bundle icicle)118     public void onCreate(Bundle icicle) {
119         super.onCreate(icicle);
120         mContext = getContext();
121         mPackageManager = getPackageManager();
122         final Bundle args = getArguments();
123 
124         mAppItem = (args != null) ? (AppItem) args.getParcelable(ARG_APP_ITEM) : null;
125         mTemplate = (args != null) ? (NetworkTemplate) args.getParcelable(ARG_NETWORK_TEMPLATE)
126                 : null;
127         mCycles = (args != null) ? (ArrayList) args.getSerializable(ARG_NETWORK_CYCLES)
128             : null;
129         mSelectedCycle = (args != null) ? args.getLong(ARG_SELECTED_CYCLE) : 0L;
130 
131         if (mTemplate == null) {
132             mTemplate = DataUsageUtils.getDefaultTemplate(mContext,
133                     SubscriptionManager.getDefaultDataSubscriptionId());
134         }
135         if (mAppItem == null) {
136             int uid = (args != null) ? args.getInt(AppInfoBase.ARG_PACKAGE_UID, -1)
137                     : getActivity().getIntent().getIntExtra(AppInfoBase.ARG_PACKAGE_UID, -1);
138             if (uid == -1) {
139                 // TODO: Log error.
140                 getActivity().finish();
141             } else {
142                 addUid(uid);
143                 mAppItem = new AppItem(uid);
144                 mAppItem.addUid(uid);
145             }
146         } else {
147             for (int i = 0; i < mAppItem.uids.size(); i++) {
148                 addUid(mAppItem.uids.keyAt(i));
149             }
150         }
151 
152         if (mAppItem.key > 0 && UserHandle.isApp(mAppItem.key)) {
153             // In case we've been asked data usage for an app, automatically
154             // include data usage of the corresponding SDK sandbox
155             final int appSandboxUid = Process.toSdkSandboxUid(mAppItem.key);
156             if (!mAppItem.uids.get(appSandboxUid)) {
157                 mAppItem.addUid(appSandboxUid);
158             }
159         }
160         mTotalUsage = findPreference(KEY_TOTAL_USAGE);
161         mForegroundUsage = findPreference(KEY_FOREGROUND_USAGE);
162         mBackgroundUsage = findPreference(KEY_BACKGROUND_USAGE);
163 
164         initCycle();
165 
166         final UidDetailProvider uidDetailProvider = getUidDetailProvider();
167 
168         if (mAppItem.key > 0) {
169             if ((!isSimHardwareVisible(mContext)) || !UserHandle.isApp(mAppItem.key)) {
170                 final UidDetail uidDetail = uidDetailProvider.getUidDetail(mAppItem.key, true);
171                 mIcon = uidDetail.icon;
172                 mLabel = uidDetail.label;
173                 removePreference(KEY_UNRESTRICTED_DATA);
174                 removePreference(KEY_RESTRICT_BACKGROUND);
175             } else {
176                 if (mPackages.size() != 0) {
177                     try {
178                         final ApplicationInfo info = mPackageManager.getApplicationInfoAsUser(
179                             mPackages.valueAt(0), 0, UserHandle.getUserId(mAppItem.key));
180                         mIcon = IconDrawableFactory.newInstance(getActivity()).getBadgedIcon(info);
181                         mLabel = info.loadLabel(mPackageManager);
182                         mPackageName = info.packageName;
183                     } catch (PackageManager.NameNotFoundException e) {
184                     }
185                 }
186                 mRestrictBackground = findPreference(KEY_RESTRICT_BACKGROUND);
187                 mRestrictBackground.setOnPreferenceChangeListener(this);
188                 mUnrestrictedData = findPreference(KEY_UNRESTRICTED_DATA);
189                 mUnrestrictedData.setOnPreferenceChangeListener(this);
190             }
191             mDataSaverBackend = new DataSaverBackend(mContext);
192             mAppSettings = findPreference(KEY_APP_SETTINGS);
193 
194             mAppSettingsIntent = new Intent(Intent.ACTION_MANAGE_NETWORK_USAGE);
195             mAppSettingsIntent.addCategory(Intent.CATEGORY_DEFAULT);
196 
197             final PackageManager pm = getPackageManager();
198             boolean matchFound = false;
199             for (String packageName : mPackages) {
200                 mAppSettingsIntent.setPackage(packageName);
201                 if (pm.resolveActivity(mAppSettingsIntent, 0) != null) {
202                     matchFound = true;
203                     break;
204                 }
205             }
206             if (!matchFound) {
207                 removePreference(KEY_APP_SETTINGS);
208                 mAppSettings = null;
209             }
210 
211             if (mPackages.size() > 1) {
212                 mAppList = findPreference(KEY_APP_LIST);
213                 LoaderManager.getInstance(this).restartLoader(LOADER_APP_PREF, Bundle.EMPTY,
214                         mAppPrefCallbacks);
215             } else {
216                 removePreference(KEY_APP_LIST);
217             }
218         } else {
219             final Context context = getActivity();
220             final UidDetail uidDetail = uidDetailProvider.getUidDetail(mAppItem.key, true);
221             mIcon = uidDetail.icon;
222             mLabel = uidDetail.label;
223             mPackageName = context.getPackageName();
224 
225             removePreference(KEY_UNRESTRICTED_DATA);
226             removePreference(KEY_APP_SETTINGS);
227             removePreference(KEY_RESTRICT_BACKGROUND);
228             removePreference(KEY_APP_LIST);
229         }
230 
231         addEntityHeader();
232     }
233 
234     @Override
onResume()235     public void onResume() {
236         super.onResume();
237         // No animations will occur before:
238         //  - LOADER_APP_USAGE_DATA initially updates the cycle
239         //  - updatePrefs() initially updates the preference visibility
240         // This is mainly for the cycle spinner, because when the page is entered from the
241         // AppInfoDashboardFragment, there is no way to know whether the cycle data is available
242         // before finished the async loading.
243         // The animator will be set back if any page updates happens after loading, in
244         // setBackPreferenceListAnimatorIfLoaded().
245         mIsLoading = true;
246         getListView().setItemAnimator(null);
247         if (mDataSaverBackend != null) {
248             mDataSaverBackend.addListener(this);
249         }
250         LoaderManager.getInstance(this).restartLoader(LOADER_APP_USAGE_DATA, null /* args */,
251                 mUidDataCallbacks);
252         updatePrefs();
253     }
254 
255     @Override
onPause()256     public void onPause() {
257         super.onPause();
258         if (mDataSaverBackend != null) {
259             mDataSaverBackend.remListener(this);
260         }
261     }
262 
263     @Override
onPreferenceChange(Preference preference, Object newValue)264     public boolean onPreferenceChange(Preference preference, Object newValue) {
265         if (preference == mRestrictBackground) {
266             mDataSaverBackend.setIsDenylisted(mAppItem.key, mPackageName, !(Boolean) newValue);
267             updatePrefs();
268             return true;
269         } else if (preference == mUnrestrictedData) {
270             mDataSaverBackend.setIsAllowlisted(mAppItem.key, mPackageName, (Boolean) newValue);
271             return true;
272         }
273         return false;
274     }
275 
276     @Override
onPreferenceTreeClick(Preference preference)277     public boolean onPreferenceTreeClick(Preference preference) {
278         if (preference == mAppSettings) {
279             // TODO: target towards entire UID instead of just first package
280             getActivity().startActivityAsUser(mAppSettingsIntent, new UserHandle(
281                     UserHandle.getUserId(mAppItem.key)));
282             return true;
283         }
284         return super.onPreferenceTreeClick(preference);
285     }
286 
287     @Override
getPreferenceScreenResId()288     protected int getPreferenceScreenResId() {
289         return R.xml.app_data_usage;
290     }
291 
292     @Override
getLogTag()293     protected String getLogTag() {
294         return TAG;
295     }
296 
297     @VisibleForTesting
updatePrefs()298     void updatePrefs() {
299         updatePrefs(getAppRestrictBackground(), getUnrestrictData());
300     }
301 
302     @VisibleForTesting
getUidDetailProvider()303     UidDetailProvider getUidDetailProvider() {
304         return new UidDetailProvider(mContext);
305     }
306 
initCycle()307     private void initCycle() {
308         mCycle = findPreference(KEY_CYCLE);
309         mCycleAdapter = new CycleAdapter(mContext, mCycle, mCycleListener);
310         if (mCycles != null) {
311             // If coming from a page like DataUsageList where already has a selected cycle, display
312             // that before loading to reduce flicker.
313             mCycleAdapter.setInitialCycleList(mCycles, mSelectedCycle);
314             mCycle.setHasCycles(true);
315         }
316     }
317 
318     /**
319      * Sets back the preference list's animator if the loading is finished.
320      *
321      * The preference list's animator was temporarily removed before loading in onResume().
322      * When need to update the preference visibility in this page after the loading, adding the
323      * animator back to keeping the usual animations.
324      */
setBackPreferenceListAnimatorIfLoaded()325     private void setBackPreferenceListAnimatorIfLoaded() {
326         if (mIsLoading) {
327             return;
328         }
329         RecyclerView recyclerView = getListView();
330         if (recyclerView.getItemAnimator() == null) {
331             recyclerView.setItemAnimator(new DefaultItemAnimator());
332         }
333     }
334 
updatePrefs(boolean restrictBackground, boolean unrestrictData)335     private void updatePrefs(boolean restrictBackground, boolean unrestrictData) {
336         if (!isSimHardwareVisible(mContext)) {
337             return;
338         }
339         setBackPreferenceListAnimatorIfLoaded();
340         final EnforcedAdmin admin = RestrictedLockUtilsInternal.checkIfMeteredDataRestricted(
341                 mContext, mPackageName, UserHandle.getUserId(mAppItem.key));
342         if (mRestrictBackground != null) {
343             mRestrictBackground.setChecked(!restrictBackground);
344             mRestrictBackground.setDisabledByAdmin(admin);
345         }
346         if (mUnrestrictedData != null) {
347             if (restrictBackground) {
348                 mUnrestrictedData.setVisible(false);
349             } else {
350                 mUnrestrictedData.setVisible(true);
351                 mUnrestrictedData.setChecked(unrestrictData);
352                 mUnrestrictedData.setDisabledByAdmin(admin);
353             }
354         }
355     }
356 
addUid(int uid)357     private void addUid(int uid) {
358         if (Process.isSdkSandboxUid(uid)) {
359             // For a sandbox process, get the associated app UID
360             uid = Process.getAppUidForSdkSandboxUid(uid);
361         }
362         String[] packages = mPackageManager.getPackagesForUid(uid);
363         if (packages != null) {
364             for (int i = 0; i < packages.length; i++) {
365                 mPackages.add(packages[i]);
366             }
367         }
368     }
369 
370     @VisibleForTesting
bindData(int position)371     void bindData(int position) {
372         final long backgroundBytes, foregroundBytes;
373         if (mUsageData == null || position >= mUsageData.size()) {
374             backgroundBytes = foregroundBytes = 0;
375             mCycle.setHasCycles(false);
376         } else {
377             mCycle.setHasCycles(true);
378             final NetworkCycleDataForUid data = mUsageData.get(position);
379             backgroundBytes = data.getBackgroudUsage();
380             foregroundBytes = data.getForegroudUsage();
381         }
382         final long totalBytes = backgroundBytes + foregroundBytes;
383 
384         mTotalUsage.setSummary(DataUsageUtils.formatDataUsage(mContext, totalBytes));
385         mForegroundUsage.setSummary(DataUsageUtils.formatDataUsage(mContext, foregroundBytes));
386         mBackgroundUsage.setSummary(DataUsageUtils.formatDataUsage(mContext, backgroundBytes));
387     }
388 
getAppRestrictBackground()389     private boolean getAppRestrictBackground() {
390         final int uid = mAppItem.key;
391         final int uidPolicy = services.mPolicyManager.getUidPolicy(uid);
392         return (uidPolicy & POLICY_REJECT_METERED_BACKGROUND) != 0;
393     }
394 
getUnrestrictData()395     private boolean getUnrestrictData() {
396         if (mDataSaverBackend != null) {
397             return mDataSaverBackend.isAllowlisted(mAppItem.key);
398         }
399         return false;
400     }
401 
402     @VisibleForTesting
addEntityHeader()403     void addEntityHeader() {
404         String pkg = mPackages.size() != 0 ? mPackages.valueAt(0) : null;
405         int uid = 0;
406         if (pkg != null) {
407             try {
408                 uid = mPackageManager.getPackageUidAsUser(pkg,
409                         UserHandle.getUserId(mAppItem.key));
410             } catch (PackageManager.NameNotFoundException e) {
411                 Log.w(TAG, "Skipping UID because cannot find package " + pkg);
412             }
413         }
414 
415         final boolean showInfoButton = mAppItem.key > 0;
416 
417         final Activity activity = getActivity();
418         final Preference pref = EntityHeaderController
419                 .newInstance(activity, this, null /* header */)
420                 .setRecyclerView(getListView(), getSettingsLifecycle())
421                 .setUid(uid)
422                 .setHasAppInfoLink(showInfoButton)
423                 .setButtonActions(EntityHeaderController.ActionType.ACTION_NONE,
424                         EntityHeaderController.ActionType.ACTION_NONE)
425                 .setIcon(mIcon)
426                 .setLabel(mLabel)
427                 .setPackageName(pkg)
428                 .done(activity, getPrefContext());
429         getPreferenceScreen().addPreference(pref);
430     }
431 
432     @Override
getMetricsCategory()433     public int getMetricsCategory() {
434         return SettingsEnums.APP_DATA_USAGE;
435     }
436 
437     private AdapterView.OnItemSelectedListener mCycleListener =
438             new AdapterView.OnItemSelectedListener() {
439         @Override
440         public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
441             bindData(position);
442         }
443 
444         @Override
445         public void onNothingSelected(AdapterView<?> parent) {
446             // ignored
447         }
448     };
449 
450     @VisibleForTesting
451     final LoaderManager.LoaderCallbacks<List<NetworkCycleDataForUid>> mUidDataCallbacks =
452         new LoaderManager.LoaderCallbacks<List<NetworkCycleDataForUid>>() {
453             @Override
454             public Loader<List<NetworkCycleDataForUid>> onCreateLoader(int id, Bundle args) {
455                 final NetworkCycleDataForUidLoader.Builder builder
456                     = NetworkCycleDataForUidLoader.builder(mContext);
457                 builder.setRetrieveDetail(true)
458                     .setNetworkTemplate(mTemplate);
459                 for (int i = 0; i < mAppItem.uids.size(); i++) {
460                     builder.addUid(mAppItem.uids.keyAt(i));
461                 }
462                 if (mCycles != null) {
463                     builder.setCycles(mCycles);
464                 }
465                 return builder.build();
466             }
467 
468             @Override
469             public void onLoadFinished(Loader<List<NetworkCycleDataForUid>> loader,
470                     List<NetworkCycleDataForUid> data) {
471                 mUsageData = data;
472                 mCycleAdapter.updateCycleList(data);
473                 if (mSelectedCycle > 0L) {
474                     final int numCycles = data.size();
475                     int position = 0;
476                     for (int i = 0; i < numCycles; i++) {
477                         final NetworkCycleDataForUid cycleData = data.get(i);
478                         if (cycleData.getEndTime() == mSelectedCycle) {
479                             position = i;
480                             break;
481                         }
482                     }
483                     if (position > 0) {
484                         mCycle.setSelection(position);
485                     }
486                     bindData(position);
487                 } else {
488                     bindData(0 /* position */);
489                 }
490                 mIsLoading = false;
491             }
492 
493             @Override
494             public void onLoaderReset(Loader<List<NetworkCycleDataForUid>> loader) {
495             }
496         };
497 
498     private final LoaderManager.LoaderCallbacks<ArraySet<Preference>> mAppPrefCallbacks =
499         new LoaderManager.LoaderCallbacks<ArraySet<Preference>>() {
500             @Override
501             public Loader<ArraySet<Preference>> onCreateLoader(int i, Bundle bundle) {
502                 return new AppPrefLoader(getPrefContext(), mPackages, getPackageManager());
503             }
504 
505             @Override
506             public void onLoadFinished(Loader<ArraySet<Preference>> loader,
507                     ArraySet<Preference> preferences) {
508                 if (preferences != null && mAppList != null) {
509                     for (Preference preference : preferences) {
510                         mAppList.addPreference(preference);
511                     }
512                 }
513             }
514 
515             @Override
516             public void onLoaderReset(Loader<ArraySet<Preference>> loader) {
517             }
518         };
519 
520     @Override
onDataSaverChanged(boolean isDataSaving)521     public void onDataSaverChanged(boolean isDataSaving) {
522 
523     }
524 
525     @Override
onAllowlistStatusChanged(int uid, boolean isAllowlisted)526     public void onAllowlistStatusChanged(int uid, boolean isAllowlisted) {
527         if (mAppItem.uids.get(uid, false)) {
528             updatePrefs(getAppRestrictBackground(), isAllowlisted);
529         }
530     }
531 
532     @Override
onDenylistStatusChanged(int uid, boolean isDenylisted)533     public void onDenylistStatusChanged(int uid, boolean isDenylisted) {
534         if (mAppItem.uids.get(uid, false)) {
535             updatePrefs(isDenylisted, getUnrestrictData());
536         }
537     }
538 }
539