1 /* 2 * Copyright (C) 2015 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.AlertDialog; 20 import android.app.Dialog; 21 import android.app.DialogFragment; 22 import android.app.NotificationManager; 23 import android.content.Context; 24 import android.content.DialogInterface; 25 import android.content.pm.ApplicationInfo; 26 import android.content.pm.PackageItemInfo; 27 import android.content.pm.PackageManager; 28 import android.database.ContentObserver; 29 import android.net.Uri; 30 import android.os.AsyncTask; 31 import android.os.Bundle; 32 import android.os.Handler; 33 import android.os.Looper; 34 import android.preference.Preference; 35 import android.preference.Preference.OnPreferenceChangeListener; 36 import android.preference.PreferenceScreen; 37 import android.preference.SwitchPreference; 38 import android.provider.Settings.Secure; 39 import android.text.TextUtils; 40 import android.util.ArraySet; 41 import android.view.LayoutInflater; 42 import android.view.View; 43 import android.view.ViewGroup; 44 import android.widget.TextView; 45 46 import com.android.internal.logging.MetricsLogger; 47 import com.android.settings.R; 48 import com.android.settings.SettingsPreferenceFragment; 49 50 import java.util.ArrayList; 51 import java.util.Collections; 52 import java.util.List; 53 54 public class ZenAccessSettings extends SettingsPreferenceFragment { 55 56 private final SettingObserver mObserver = new SettingObserver(); 57 58 private Context mContext; 59 private PackageManager mPkgMan; 60 private NotificationManager mNoMan; 61 private TextView mEmpty; 62 63 @Override 64 protected int getMetricsCategory() { 65 return MetricsLogger.NOTIFICATION_ZEN_MODE_ACCESS; 66 } 67 68 @Override 69 public void onCreate(Bundle icicle) { 70 super.onCreate(icicle); 71 72 mContext = getActivity(); 73 mPkgMan = mContext.getPackageManager(); 74 mNoMan = mContext.getSystemService(NotificationManager.class); 75 setPreferenceScreen(getPreferenceManager().createPreferenceScreen(mContext)); 76 } 77 78 @Override 79 public View onCreateView(LayoutInflater inflater, ViewGroup container, 80 Bundle savedInstanceState) { 81 final View v = inflater.inflate(R.layout.managed_service_settings, container, false); 82 mEmpty = (TextView) v.findViewById(android.R.id.empty); 83 mEmpty.setText(R.string.zen_access_empty_text); 84 return v; 85 } 86 87 @Override 88 public void onResume() { 89 super.onResume(); 90 reloadList(); 91 getContentResolver().registerContentObserver( 92 Secure.getUriFor(Secure.ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES), false, 93 mObserver); 94 } 95 96 @Override 97 public void onPause() { 98 super.onPause(); 99 getContentResolver().unregisterContentObserver(mObserver); 100 } 101 102 private void reloadList() { 103 final PreferenceScreen screen = getPreferenceScreen(); 104 screen.removeAll(); 105 final ArrayList<ApplicationInfo> apps = new ArrayList<>(); 106 final ArraySet<String> requesting = mNoMan.getPackagesRequestingNotificationPolicyAccess(); 107 if (requesting != null && !requesting.isEmpty()) { 108 final List<ApplicationInfo> installed = mPkgMan.getInstalledApplications(0); 109 if (installed != null) { 110 for (ApplicationInfo app : installed) { 111 if (requesting.contains(app.packageName)) { 112 apps.add(app); 113 } 114 } 115 } 116 } 117 Collections.sort(apps, new PackageItemInfo.DisplayNameComparator(mPkgMan)); 118 for (ApplicationInfo app : apps) { 119 final String pkg = app.packageName; 120 final CharSequence label = app.loadLabel(mPkgMan); 121 final SwitchPreference pref = new SwitchPreference(mContext); 122 pref.setPersistent(false); 123 pref.setIcon(app.loadIcon(mPkgMan)); 124 pref.setTitle(label); 125 pref.setChecked(hasAccess(pkg)); 126 pref.setOnPreferenceChangeListener(new OnPreferenceChangeListener() { 127 @Override 128 public boolean onPreferenceChange(Preference preference, Object newValue) { 129 final boolean access = (Boolean) newValue; 130 if (!access) { 131 // disabling access 132 setAccess(mContext, pkg, access); 133 return true; 134 } 135 // enabling access: show a scary dialog first 136 new ScaryWarningDialogFragment() 137 .setPkgInfo(pkg, label) 138 .show(getFragmentManager(), "dialog"); 139 return false; 140 } 141 }); 142 screen.addPreference(pref); 143 } 144 mEmpty.setVisibility(apps.isEmpty() ? View.VISIBLE : View.GONE); 145 } 146 147 private boolean hasAccess(String pkg) { 148 return mNoMan.isNotificationPolicyAccessGrantedForPackage(pkg); 149 } 150 151 private static void setAccess(final Context context, final String pkg, final boolean access) { 152 AsyncTask.execute(new Runnable() { 153 @Override 154 public void run() { 155 final NotificationManager mgr = context.getSystemService(NotificationManager.class); 156 mgr.setNotificationPolicyAccessGranted(pkg, access); 157 } 158 }); 159 } 160 161 private final class SettingObserver extends ContentObserver { 162 public SettingObserver() { 163 super(new Handler(Looper.getMainLooper())); 164 } 165 166 @Override 167 public void onChange(boolean selfChange, Uri uri) { 168 reloadList(); 169 } 170 } 171 172 public static class ScaryWarningDialogFragment extends DialogFragment { 173 static final String KEY_PKG = "p"; 174 static final String KEY_LABEL = "l"; 175 176 public ScaryWarningDialogFragment setPkgInfo(String pkg, CharSequence label) { 177 Bundle args = new Bundle(); 178 args.putString(KEY_PKG, pkg); 179 args.putString(KEY_LABEL, TextUtils.isEmpty(label) ? pkg : label.toString()); 180 setArguments(args); 181 return this; 182 } 183 184 @Override 185 public Dialog onCreateDialog(Bundle savedInstanceState) { 186 super.onCreate(savedInstanceState); 187 final Bundle args = getArguments(); 188 final String pkg = args.getString(KEY_PKG); 189 final String label = args.getString(KEY_LABEL); 190 191 final String title = getResources().getString(R.string.zen_access_warning_dialog_title, 192 label); 193 final String summary = getResources() 194 .getString(R.string.zen_access_warning_dialog_summary); 195 return new AlertDialog.Builder(getContext()) 196 .setMessage(summary) 197 .setTitle(title) 198 .setCancelable(true) 199 .setPositiveButton(R.string.allow, 200 new DialogInterface.OnClickListener() { 201 public void onClick(DialogInterface dialog, int id) { 202 setAccess(getContext(), pkg, true); 203 } 204 }) 205 .setNegativeButton(R.string.deny, 206 new DialogInterface.OnClickListener() { 207 public void onClick(DialogInterface dialog, int id) { 208 // pass 209 } 210 }) 211 .create(); 212 } 213 } 214 } 215
