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0001 /* 0002 * SPDX-FileCopyrightText: 2020 Erik Duisters <e.duisters1@gmail.com> 0003 * 0004 * SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL 0005 */ 0006 0007 package org.kde.kdeconnect.Helpers; 0008 0009 import androidx.annotation.NonNull; 0010 import androidx.lifecycle.DefaultLifecycleObserver; 0011 import androidx.lifecycle.LifecycleOwner; 0012 import androidx.lifecycle.ProcessLifecycleOwner; 0013 0014 public class LifecycleHelper { 0015 0016 private static class LifecycleObserver implements DefaultLifecycleObserver { 0017 private boolean inForeground = false; 0018 0019 @Override 0020 public void onStart(@NonNull LifecycleOwner owner) { 0021 inForeground = true; 0022 } 0023 0024 @Override 0025 public void onStop(@NonNull LifecycleOwner owner) { 0026 inForeground = false; 0027 } 0028 0029 boolean isInForeground() { 0030 return inForeground; 0031 } 0032 } 0033 0034 private final static LifecycleObserver foregroundTracker = new LifecycleObserver(); 0035 0036 public static boolean isInForeground() { 0037 return foregroundTracker.isInForeground(); 0038 } 0039 0040 public static void initializeObserver() { 0041 ProcessLifecycleOwner.get().getLifecycle().addObserver(foregroundTracker); 0042 } 0043 }