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 androidx.core.app;
18
19import android.app.ActivityManager;
20import android.os.Build;
21
22import androidx.annotation.NonNull;
23
24/**
25 * Helper for accessing features in {@link android.app.ActivityManager} in a backwards compatible
26 * fashion.
27 */
28public final class ActivityManagerCompat {
29
30    private ActivityManagerCompat() {}
31
32    /**
33     * Returns true if this is a low-RAM device.  Exactly whether a device is low-RAM
34     * is ultimately up to the device configuration, but currently it generally means
35     * something in the class of a 512MB device with about a 800x480 or less screen.
36     * This is mostly intended to be used by apps to determine whether they should turn
37     * off certain features that require more RAM.
38     */
39    public static boolean isLowRamDevice(@NonNull ActivityManager activityManager) {
40        if (Build.VERSION.SDK_INT >= 19) {
41            return activityManager.isLowRamDevice();
42        }
43        return false;
44    }
45}
46