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      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 
     17 package androidx.core.app;
     18 
     19 import android.app.ActivityManager;
     20 import android.os.Build;
     21 
     22 import androidx.annotation.NonNull;
     23 
     24 /**
     25  * Helper for accessing features in {@link android.app.ActivityManager} in a backwards compatible
     26  * fashion.
     27  */
     28 public 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