1 /* 2 * Copyright (C) 2017 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 package com.android.dialer.storage; 17 18 import android.content.Context; 19 import android.content.SharedPreferences; 20 import android.preference.PreferenceManager; 21 import android.support.v4.content.ContextCompat; 22 import com.android.dialer.inject.ApplicationContext; 23 import dagger.Module; 24 import dagger.Provides; 25 import javax.inject.Singleton; 26 27 /** Module for the storage component. */ 28 @Module 29 public class StorageModule { 30 31 @Provides 32 @Singleton 33 @Unencrypted provideUnencryptedSharedPrefs(@pplicationContext Context appContext)34 static SharedPreferences provideUnencryptedSharedPrefs(@ApplicationContext Context appContext) { 35 // #createDeviceProtectedStorageContext returns a new context each time, so we cache the shared 36 // preferences object in order to avoid accessing disk for every operation. 37 Context deviceProtectedContext = ContextCompat.createDeviceProtectedStorageContext(appContext); 38 39 // ContextCompat.createDeviceProtectedStorageContext(context) returns null on pre-N, thus fall 40 // back to regular default shared preference for pre-N devices since devices protected context 41 // is not available. 42 return PreferenceManager.getDefaultSharedPreferences( 43 deviceProtectedContext != null ? deviceProtectedContext : appContext); 44 } 45 } 46