| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.settings.applications.defaultapps; |
| |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ResolveInfo; |
| import android.provider.Settings; |
| import android.text.TextUtils; |
| |
| import com.android.internal.logging.nano.MetricsProto; |
| import com.android.settings.R; |
| import com.android.settings.Utils; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| public class DefaultEmergencyPicker extends DefaultAppPickerFragment { |
| |
| @Override |
| public int getMetricsCategory() { |
| return MetricsProto.MetricsEvent.DEFAULT_EMERGENCY_APP_PICKER; |
| } |
| |
| @Override |
| protected int getPreferenceScreenResId() { |
| return R.xml.default_emergency_settings; |
| } |
| |
| @Override |
| protected List<DefaultAppInfo> getCandidates() { |
| final List<DefaultAppInfo> candidates = new ArrayList<>(); |
| final List<ResolveInfo> infos = mPm.getPackageManager().queryIntentActivities( |
| DefaultEmergencyPreferenceController.QUERY_INTENT, 0); |
| PackageInfo bestMatch = null; |
| final Context context = getContext(); |
| for (ResolveInfo info : infos) { |
| try { |
| final PackageInfo packageInfo = |
| mPm.getPackageManager().getPackageInfo(info.activityInfo.packageName, 0); |
| final ApplicationInfo appInfo = packageInfo.applicationInfo; |
| candidates.add(new DefaultAppInfo(context, mPm, appInfo)); |
| // Get earliest installed system app. |
| if (isSystemApp(appInfo) && (bestMatch == null || |
| bestMatch.firstInstallTime > packageInfo.firstInstallTime)) { |
| bestMatch = packageInfo; |
| } |
| } catch (PackageManager.NameNotFoundException e) { |
| // Skip unknown packages. |
| } |
| if (bestMatch != null) { |
| final String defaultKey = getDefaultKey(); |
| if (TextUtils.isEmpty(defaultKey)) { |
| setDefaultKey(bestMatch.packageName); |
| } |
| } |
| } |
| return candidates; |
| } |
| |
| @Override |
| protected String getConfirmationMessage(CandidateInfo info) { |
| return Utils.isPackageDirectBootAware(getContext(), info.getKey()) ? null |
| : getContext().getString(R.string.direct_boot_unaware_dialog_message); |
| } |
| |
| @Override |
| protected String getDefaultKey() { |
| return Settings.Secure.getString(getContext().getContentResolver(), |
| Settings.Secure.EMERGENCY_ASSISTANCE_APPLICATION); |
| } |
| |
| @Override |
| protected boolean setDefaultKey(String key) { |
| final ContentResolver contentResolver = getContext().getContentResolver(); |
| final String previousValue = Settings.Secure.getString(contentResolver, |
| Settings.Secure.EMERGENCY_ASSISTANCE_APPLICATION); |
| |
| if (!TextUtils.isEmpty(key) && !TextUtils.equals(key, previousValue)) { |
| Settings.Secure.putString(contentResolver, |
| Settings.Secure.EMERGENCY_ASSISTANCE_APPLICATION, |
| key); |
| return true; |
| } |
| return false; |
| } |
| |
| private boolean isSystemApp(ApplicationInfo info) { |
| return info != null && (info.flags & ApplicationInfo.FLAG_SYSTEM) != 0; |
| } |
| } |