1/* 2 * Copyright (C) 2014 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 17package android.support.v4.app; 18 19import android.app.ActivityManager; 20import android.os.Build; 21import android.support.annotation.NonNull; 22 23/** 24 * Helper for accessing features in {@link android.app.ActivityManager} 25 * introduced after API level 4 in a backwards compatible fashion. 26 */ 27public final class ActivityManagerCompat { 28 private ActivityManagerCompat() { 29 } 30 31 /** 32 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 33 * is ultimately up to the device configuration, but currently it generally means 34 * something in the class of a 512MB device with about a 800x480 or less screen. 35 * This is mostly intended to be used by apps to determine whether they should turn 36 * off certain features that require more RAM. 37 */ 38 public static boolean isLowRamDevice(@NonNull ActivityManager am) { 39 if (Build.VERSION.SDK_INT >= 19) { 40 return ActivityManagerCompatKitKat.isLowRamDevice(am); 41 } 42 return false; 43 } 44} 45