| /* |
| * Copyright (C) 2015 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 android.telecom; |
| |
| import android.app.ActivityManager; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.ActivityInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ResolveInfo; |
| import android.net.Uri; |
| import android.os.Process; |
| import android.provider.Settings; |
| import android.text.TextUtils; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Class for managing the default dialer application that will receive incoming calls, and be |
| * allowed to make emergency outgoing calls. |
| * |
| * @hide |
| */ |
| public class DefaultDialerManager { |
| private static final String TAG = "DefaultDialerManager"; |
| |
| /** |
| * Sets the specified package name as the default dialer application for the current user. |
| * The caller of this method needs to have permission to write to secure settings and |
| * manage users on the device. |
| * |
| * @return {@code true} if the default dialer application was successfully changed, |
| * {@code false} otherwise. |
| * |
| * @hide |
| * */ |
| public static boolean setDefaultDialerApplication(Context context, String packageName) { |
| return setDefaultDialerApplication(context, packageName, ActivityManager.getCurrentUser()); |
| } |
| |
| /** |
| * Sets the specified package name as the default dialer application for the specified user. |
| * The caller of this method needs to have permission to write to secure settings and |
| * manage users on the device. |
| * |
| * @return {@code true} if the default dialer application was successfully changed, |
| * {@code false} otherwise. |
| * |
| * @hide |
| * */ |
| public static boolean setDefaultDialerApplication(Context context, String packageName, |
| int user) { |
| // Get old package name |
| String oldPackageName = Settings.Secure.getStringForUser(context.getContentResolver(), |
| Settings.Secure.DIALER_DEFAULT_APPLICATION, user); |
| |
| if (packageName != null && oldPackageName != null && packageName.equals(oldPackageName)) { |
| // No change |
| return false; |
| } |
| |
| // Only make the change if the new package belongs to a valid phone application |
| List<String> packageNames = getInstalledDialerApplications(context); |
| |
| if (packageNames.contains(packageName)) { |
| // Update the secure setting. |
| Settings.Secure.putStringForUser(context.getContentResolver(), |
| Settings.Secure.DIALER_DEFAULT_APPLICATION, packageName, user); |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Returns the installed dialer application for the current user that will be used to receive |
| * incoming calls, and is allowed to make emergency calls. |
| * |
| * The application will be returned in order of preference: |
| * 1) User selected phone application (if still installed) |
| * 2) Pre-installed system dialer (if not disabled) |
| * 3) Null |
| * |
| * The caller of this method needs to have permission to manage users on the device. |
| * |
| * @hide |
| * */ |
| public static String getDefaultDialerApplication(Context context) { |
| return getDefaultDialerApplication(context, context.getUserId()); |
| } |
| |
| /** |
| * Returns the installed dialer application for the specified user that will be used to receive |
| * incoming calls, and is allowed to make emergency calls. |
| * |
| * The application will be returned in order of preference: |
| * 1) User selected phone application (if still installed) |
| * 2) Pre-installed system dialer (if not disabled) |
| * 3) Null |
| * |
| * The caller of this method needs to have permission to manage users on the device. |
| * |
| * @hide |
| * */ |
| public static String getDefaultDialerApplication(Context context, int user) { |
| String defaultPackageName = Settings.Secure.getStringForUser(context.getContentResolver(), |
| Settings.Secure.DIALER_DEFAULT_APPLICATION, user); |
| |
| final List<String> packageNames = getInstalledDialerApplications(context, user); |
| |
| // Verify that the default dialer has not been disabled or uninstalled. |
| if (packageNames.contains(defaultPackageName)) { |
| return defaultPackageName; |
| } |
| |
| // No user-set dialer found, fallback to system dialer |
| String systemDialerPackageName = getTelecomManager(context).getSystemDialerPackage(); |
| |
| if (TextUtils.isEmpty(systemDialerPackageName)) { |
| // No system dialer configured at build time |
| return null; |
| } |
| |
| if (packageNames.contains(systemDialerPackageName)) { |
| return systemDialerPackageName; |
| } else { |
| return null; |
| } |
| } |
| |
| /** |
| * Returns a list of installed and available dialer applications. |
| * |
| * In order to appear in the list, a dialer application must implement an intent-filter with |
| * the DIAL intent for the following schemes: |
| * |
| * 1) Empty scheme |
| * 2) tel Uri scheme |
| * |
| * @hide |
| **/ |
| public static List<String> getInstalledDialerApplications(Context context, int userId) { |
| PackageManager packageManager = context.getPackageManager(); |
| |
| // Get the list of apps registered for the DIAL intent with empty scheme |
| Intent intent = new Intent(Intent.ACTION_DIAL); |
| List<ResolveInfo> resolveInfoList = |
| packageManager.queryIntentActivitiesAsUser(intent, 0, userId); |
| |
| List<String> packageNames = new ArrayList<>(); |
| |
| for (ResolveInfo resolveInfo : resolveInfoList) { |
| final ActivityInfo activityInfo = resolveInfo.activityInfo; |
| if (activityInfo != null && !packageNames.contains(activityInfo.packageName)) { |
| packageNames.add(activityInfo.packageName); |
| } |
| } |
| |
| final Intent dialIntentWithTelScheme = new Intent(Intent.ACTION_DIAL); |
| dialIntentWithTelScheme.setData(Uri.fromParts(PhoneAccount.SCHEME_TEL, "", null)); |
| return filterByIntent(context, packageNames, dialIntentWithTelScheme); |
| } |
| |
| public static List<String> getInstalledDialerApplications(Context context) { |
| return getInstalledDialerApplications(context, Process.myUserHandle().getIdentifier()); |
| } |
| |
| /** |
| * Determines if the package name belongs to the user-selected default dialer or the preloaded |
| * system dialer, and thus should be allowed to perform certain privileged operations. |
| * |
| * @param context A valid context. |
| * @param packageName of the package to check for. |
| * |
| * @return {@code true} if the provided package name corresponds to the user-selected default |
| * dialer or the preloaded system dialer, {@code false} otherwise. |
| * |
| * @hide |
| */ |
| public static boolean isDefaultOrSystemDialer(Context context, String packageName) { |
| if (TextUtils.isEmpty(packageName)) { |
| return false; |
| } |
| final TelecomManager tm = getTelecomManager(context); |
| return packageName.equals(tm.getDefaultDialerPackage()) |
| || packageName.equals(tm.getSystemDialerPackage()); |
| } |
| |
| /** |
| * Filter a given list of package names for those packages that contain an activity that has |
| * an intent filter for a given intent. |
| * |
| * @param context A valid context |
| * @param packageNames List of package names to filter. |
| * @return The filtered list. |
| */ |
| private static List<String> filterByIntent(Context context, List<String> packageNames, |
| Intent intent) { |
| if (packageNames == null || packageNames.isEmpty()) { |
| return new ArrayList<>(); |
| } |
| |
| final List<String> result = new ArrayList<>(); |
| final List<ResolveInfo> resolveInfoList = context.getPackageManager() |
| .queryIntentActivities(intent, 0); |
| final int length = resolveInfoList.size(); |
| for (int i = 0; i < length; i++) { |
| final ActivityInfo info = resolveInfoList.get(i).activityInfo; |
| if (info != null && packageNames.contains(info.packageName) |
| && !result.contains(info.packageName)) { |
| result.add(info.packageName); |
| } |
| } |
| |
| return result; |
| } |
| |
| |
| private static TelecomManager getTelecomManager(Context context) { |
| return (TelecomManager) context.getSystemService(Context.TELECOM_SERVICE); |
| } |
| } |