| /* |
| * 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.google.android.tv.partner.support; |
| |
| import android.annotation.TargetApi; |
| import android.content.Context; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.content.res.Resources; |
| import android.os.Build; |
| import android.util.Log; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.Optional; |
| |
| /** |
| * Abstract class for TV Customization support. |
| * |
| * <p>Implement customization resources as needed in a child class. |
| */ |
| @TargetApi(Build.VERSION_CODES.N) |
| @SuppressWarnings("AndroidApiChecker") // TODO(b/32513850) remove when error prone is updated |
| public class BaseCustomization { |
| private static final boolean DEBUG = false; |
| private static final String TAG = "BaseCustomization"; |
| |
| // TODO move common aosp library |
| |
| // TODO cache resource if performance suffers. |
| |
| private static final String RES_TYPE_BOOLEAN = "bool"; |
| |
| private final String packageName; |
| |
| protected BaseCustomization(Context context, String[] permissions) { |
| packageName = getFirstPackageNameWithPermissions(context, permissions); |
| } |
| |
| public final String getPackageName() { |
| return packageName; |
| } |
| |
| private static String getFirstPackageNameWithPermissions( |
| Context context, String[] permissions) { |
| |
| List<PackageInfo> packageInfos = |
| context.getPackageManager().getPackagesHoldingPermissions(permissions, 0); |
| if (DEBUG) { |
| Log.d(TAG, "These packages have " + Arrays.toString(permissions) + ": " + packageInfos); |
| } |
| return packageInfos == null || packageInfos.size() == 0 |
| ? "" |
| : packageInfos.get(0).packageName; |
| } |
| |
| private static Resources getResourceForPackage(Context context, String packageName) |
| throws PackageManager.NameNotFoundException { |
| return context.getPackageManager().getResourcesForApplication(packageName); |
| } |
| |
| public final Optional<Boolean> getBooleanResource(Context context, String resourceName) { |
| if (resourceName.isEmpty()) { |
| return Optional.empty(); |
| } |
| try { |
| Resources res = getResourceForPackage(context, packageName); |
| int resId = |
| res == null |
| ? 0 |
| : res.getIdentifier(resourceName, RES_TYPE_BOOLEAN, packageName); |
| if (DEBUG) { |
| Log.d(TAG, "Boolean resource " + resourceName + " has " + resId); |
| } |
| return resId == 0 ? Optional.empty() : Optional.of(res.getBoolean(resId)); |
| } catch (PackageManager.NameNotFoundException e) { |
| return Optional.empty(); |
| } |
| } |
| } |