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1 /*
2  * Copyright (C) 2012 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.notification;
18 
19 import android.app.Activity;
20 import android.app.ActivityManager;
21 import android.app.INotificationManager;
22 import android.app.Notification;
23 import android.content.ComponentName;
24 import android.content.Context;
25 import android.content.Intent;
26 import android.content.pm.ApplicationInfo;
27 import android.content.pm.PackageManager;
28 import android.content.res.Resources;
29 import android.graphics.drawable.Drawable;
30 import android.net.Uri;
31 import android.os.Bundle;
32 import android.os.Handler;
33 import android.os.RemoteException;
34 import android.os.ServiceManager;
35 import android.os.UserHandle;
36 import android.service.notification.NotificationListenerService;
37 import android.service.notification.StatusBarNotification;
38 import android.util.Log;
39 import android.view.LayoutInflater;
40 import android.view.View;
41 import android.view.View.OnClickListener;
42 import android.view.ViewGroup;
43 import android.widget.ArrayAdapter;
44 import android.widget.DateTimeView;
45 import android.widget.ImageView;
46 import android.widget.ListView;
47 import android.widget.TextView;
48 
49 import com.android.settings.R;
50 import com.android.settings.SettingsPreferenceFragment;
51 import com.android.settings.Utils;
52 
53 import java.util.ArrayList;
54 import java.util.Comparator;
55 import java.util.List;
56 
57 public class NotificationStation extends SettingsPreferenceFragment {
58     private static final String TAG = NotificationStation.class.getSimpleName();
59 
60     private static final boolean DEBUG = false;
61 
62     private static class HistoricalNotificationInfo {
63         public String pkg;
64         public Drawable pkgicon;
65         public CharSequence pkgname;
66         public Drawable icon;
67         public CharSequence title;
68         public int priority;
69         public int user;
70         public long timestamp;
71         public boolean active;
72     }
73 
74     private PackageManager mPm;
75     private INotificationManager mNoMan;
76 
77     private Runnable mRefreshListRunnable = new Runnable() {
78         @Override
79         public void run() {
80             refreshList();
81         }
82     };
83 
84     private NotificationListenerService mListener = new NotificationListenerService() {
85         @Override
86         public void onNotificationPosted(StatusBarNotification notification) {
87             logd("onNotificationPosted: %s", notification);
88             final Handler h = getListView().getHandler();
89             h.removeCallbacks(mRefreshListRunnable);
90             h.postDelayed(mRefreshListRunnable, 100);
91         }
92 
93         @Override
94         public void onNotificationRemoved(StatusBarNotification notification) {
95             final Handler h = getListView().getHandler();
96             h.removeCallbacks(mRefreshListRunnable);
97             h.postDelayed(mRefreshListRunnable, 100);
98         }
99     };
100 
101     private NotificationHistoryAdapter mAdapter;
102     private Context mContext;
103 
104     private final Comparator<HistoricalNotificationInfo> mNotificationSorter
105             = new Comparator<HistoricalNotificationInfo>() {
106                 @Override
107                 public int compare(HistoricalNotificationInfo lhs,
108                                    HistoricalNotificationInfo rhs) {
109                     return (int)(rhs.timestamp - lhs.timestamp);
110                 }
111             };
112 
113     @Override
onAttach(Activity activity)114     public void onAttach(Activity activity) {
115         logd("onAttach(%s)", activity.getClass().getSimpleName());
116         super.onAttach(activity);
117         mContext = activity;
118         mPm = mContext.getPackageManager();
119         mNoMan = INotificationManager.Stub.asInterface(
120                 ServiceManager.getService(Context.NOTIFICATION_SERVICE));
121         try {
122             mListener.registerAsSystemService(mContext, new ComponentName(mContext.getPackageName(),
123                     this.getClass().getCanonicalName()), ActivityManager.getCurrentUser());
124         } catch (RemoteException e) {
125             Log.e(TAG, "Cannot register listener", e);
126         }
127     }
128 
129     @Override
onDetach()130     public void onDetach() {
131         try {
132             mListener.unregisterAsSystemService();
133         } catch (RemoteException e) {
134             Log.e(TAG, "Cannot unregister listener", e);
135         }
136         super.onDetach();
137     }
138 
139     @Override
onActivityCreated(Bundle savedInstanceState)140     public void onActivityCreated(Bundle savedInstanceState) {
141         logd("onActivityCreated(%s)", savedInstanceState);
142         super.onActivityCreated(savedInstanceState);
143 
144         ListView listView = getListView();
145         Utils.forceCustomPadding(listView, false /* non additive padding */);
146 
147         mAdapter = new NotificationHistoryAdapter(mContext);
148         listView.setAdapter(mAdapter);
149     }
150 
151     @Override
onResume()152     public void onResume() {
153         logd("onResume()");
154         super.onResume();
155         refreshList();
156     }
157 
refreshList()158     private void refreshList() {
159         List<HistoricalNotificationInfo> infos = loadNotifications();
160         if (infos != null) {
161             logd("adding %d infos", infos.size());
162             mAdapter.clear();
163             mAdapter.addAll(infos);
164             mAdapter.sort(mNotificationSorter);
165         }
166     }
167 
logd(String msg, Object... args)168     private static void logd(String msg, Object... args) {
169         if (DEBUG) {
170             Log.d(TAG, args == null || args.length == 0 ? msg : String.format(msg, args));
171         }
172     }
173 
loadNotifications()174     private List<HistoricalNotificationInfo> loadNotifications() {
175         final int currentUserId = ActivityManager.getCurrentUser();
176         try {
177             StatusBarNotification[] active = mNoMan.getActiveNotifications(
178                     mContext.getPackageName());
179             StatusBarNotification[] dismissed = mNoMan.getHistoricalNotifications(
180                     mContext.getPackageName(), 50);
181 
182             List<HistoricalNotificationInfo> list
183                     = new ArrayList<HistoricalNotificationInfo>(active.length + dismissed.length);
184 
185             for (StatusBarNotification[] resultset
186                     : new StatusBarNotification[][] { active, dismissed }) {
187                 for (StatusBarNotification sbn : resultset) {
188                     final HistoricalNotificationInfo info = new HistoricalNotificationInfo();
189                     info.pkg = sbn.getPackageName();
190                     info.user = sbn.getUserId();
191                     info.icon = loadIconDrawable(info.pkg, info.user, sbn.getNotification().icon);
192                     info.pkgicon = loadPackageIconDrawable(info.pkg, info.user);
193                     info.pkgname = loadPackageName(info.pkg);
194                     if (sbn.getNotification().extras != null) {
195                         info.title = sbn.getNotification().extras.getString(
196                                 Notification.EXTRA_TITLE);
197                         if (info.title == null || "".equals(info.title)) {
198                             info.title = sbn.getNotification().extras.getString(
199                                     Notification.EXTRA_TEXT);
200                         }
201                     }
202                     if (info.title == null || "".equals(info.title)) {
203                         info.title = sbn.getNotification().tickerText;
204                     }
205                     // still nothing? come on, give us something!
206                     if (info.title == null || "".equals(info.title)) {
207                         info.title = info.pkgname;
208                     }
209                     info.timestamp = sbn.getPostTime();
210                     info.priority = sbn.getNotification().priority;
211                     logd("   [%d] %s: %s", info.timestamp, info.pkg, info.title);
212 
213                     info.active = (resultset == active);
214 
215                     if (info.user == UserHandle.USER_ALL
216                             || info.user == currentUserId) {
217                         list.add(info);
218                     }
219                 }
220             }
221 
222             return list;
223         } catch (RemoteException e) {
224             Log.e(TAG, "Cannot load Notifications: ", e);
225         }
226         return null;
227     }
228 
getResourcesForUserPackage(String pkg, int userId)229     private Resources getResourcesForUserPackage(String pkg, int userId) {
230         Resources r = null;
231 
232         if (pkg != null) {
233             try {
234                 if (userId == UserHandle.USER_ALL) {
235                     userId = UserHandle.USER_OWNER;
236                 }
237                 r = mPm.getResourcesForApplicationAsUser(pkg, userId);
238             } catch (PackageManager.NameNotFoundException ex) {
239                 Log.e(TAG, "Icon package not found: " + pkg, ex);
240                 return null;
241             }
242         } else {
243             r = mContext.getResources();
244         }
245         return r;
246     }
247 
loadPackageIconDrawable(String pkg, int userId)248     private Drawable loadPackageIconDrawable(String pkg, int userId) {
249         Drawable icon = null;
250         try {
251             icon = mPm.getApplicationIcon(pkg);
252         } catch (PackageManager.NameNotFoundException e) {
253             Log.e(TAG, "Cannot get application icon", e);
254         }
255 
256         return icon;
257     }
258 
loadPackageName(String pkg)259     private CharSequence loadPackageName(String pkg) {
260         try {
261             ApplicationInfo info = mPm.getApplicationInfo(pkg,
262                     PackageManager.GET_UNINSTALLED_PACKAGES);
263             if (info != null) return mPm.getApplicationLabel(info);
264         } catch (PackageManager.NameNotFoundException e) {
265             Log.e(TAG, "Cannot load package name", e);
266         }
267         return pkg;
268     }
269 
loadIconDrawable(String pkg, int userId, int resId)270     private Drawable loadIconDrawable(String pkg, int userId, int resId) {
271         Resources r = getResourcesForUserPackage(pkg, userId);
272 
273         if (resId == 0) {
274             return null;
275         }
276 
277         try {
278             return r.getDrawable(resId, null);
279         } catch (RuntimeException e) {
280             Log.w(TAG, "Icon not found in "
281                     + (pkg != null ? resId : "<system>")
282                     + ": " + Integer.toHexString(resId), e);
283         }
284 
285         return null;
286     }
287 
288     private class NotificationHistoryAdapter extends ArrayAdapter<HistoricalNotificationInfo> {
289         private final LayoutInflater mInflater;
290 
NotificationHistoryAdapter(Context context)291         public NotificationHistoryAdapter(Context context) {
292             super(context, 0);
293             mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
294         }
295 
296         @Override
getView(int position, View convertView, ViewGroup parent)297         public View getView(int position, View convertView, ViewGroup parent) {
298             final HistoricalNotificationInfo info = getItem(position);
299             logd("getView(%s/%s)", info.pkg, info.title);
300 
301             final View row = convertView != null ? convertView : createRow(parent);
302             row.setTag(info);
303 
304             // bind icon
305             if (info.icon != null) {
306                 ((ImageView) row.findViewById(android.R.id.icon)).setImageDrawable(info.icon);
307             }
308             if (info.pkgicon != null) {
309                 ((ImageView) row.findViewById(R.id.pkgicon)).setImageDrawable(info.pkgicon);
310             }
311 
312             ((DateTimeView) row.findViewById(R.id.timestamp)).setTime(info.timestamp);
313             ((TextView) row.findViewById(android.R.id.title)).setText(info.title);
314             ((TextView) row.findViewById(R.id.pkgname)).setText(info.pkgname);
315 
316             row.findViewById(R.id.extra).setVisibility(View.GONE);
317             row.setAlpha(info.active ? 1.0f : 0.5f);
318 
319             // set up click handler
320             row.setOnClickListener(new OnClickListener(){
321                 @Override
322                 public void onClick(View v) {
323                     v.setPressed(true);
324                     startApplicationDetailsActivity(info.pkg);
325                 }});
326 
327             return row;
328         }
329 
createRow(ViewGroup parent)330         private View createRow(ViewGroup parent) {
331             return mInflater.inflate(R.layout.notification_log_row, parent, false);
332         }
333 
334     }
335 
startApplicationDetailsActivity(String packageName)336     private void startApplicationDetailsActivity(String packageName) {
337         Intent intent = new Intent(android.provider.Settings.ACTION_APPLICATION_DETAILS_SETTINGS,
338                 Uri.fromParts("package", packageName, null));
339         intent.setComponent(intent.resolveActivity(mPm));
340         startActivity(intent);
341     }
342 }
343