mirror of
https://github.com/LawnchairLauncher/lawnchair.git
synced 2026-03-01 08:16:49 +00:00
a992ac9e8d
This is eventually allow us to move all register to background thread Also creating a single ScreenOn tracked which is used at multiple places Bug: 264465756 Test: Verified on device Change-Id: Ibadf9ca43218e578954420d97a733adfa0a94fc7 Merged-In: Ib410e5bf02773cefde5bf0a0a1f2f1c108718d24
94 lines
2.9 KiB
Java
94 lines
2.9 KiB
Java
/*
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3.util;
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import static android.content.Intent.ACTION_SCREEN_OFF;
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import static android.content.Intent.ACTION_SCREEN_ON;
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import static android.content.Intent.ACTION_USER_PRESENT;
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import android.content.Context;
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import android.content.Intent;
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import java.util.concurrent.CopyOnWriteArrayList;
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/**
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* Utility class for tracking if the screen is currently on or off
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*/
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public class ScreenOnTracker {
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public static final MainThreadInitializedObject<ScreenOnTracker> INSTANCE =
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new MainThreadInitializedObject<>(ScreenOnTracker::new);
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private final SimpleBroadcastReceiver mReceiver = new SimpleBroadcastReceiver(this::onReceive);
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private final CopyOnWriteArrayList<ScreenOnListener> mListeners = new CopyOnWriteArrayList<>();
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private boolean mIsScreenOn;
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private ScreenOnTracker(Context context) {
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// Assume that the screen is on to begin with
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mIsScreenOn = true;
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mReceiver.register(context, ACTION_SCREEN_ON, ACTION_SCREEN_OFF, ACTION_USER_PRESENT);
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}
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private void onReceive(Intent intent) {
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String action = intent.getAction();
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if (ACTION_SCREEN_ON.equals(action)) {
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mIsScreenOn = true;
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dispatchScreenOnChanged();
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} else if (ACTION_SCREEN_OFF.equals(action)) {
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mIsScreenOn = false;
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dispatchScreenOnChanged();
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} else if (ACTION_USER_PRESENT.equals(action)) {
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mListeners.forEach(ScreenOnListener::onUserPresent);
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}
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}
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private void dispatchScreenOnChanged() {
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mListeners.forEach(l -> l.onScreenOnChanged(mIsScreenOn));
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}
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/** Returns if the screen is on or not */
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public boolean isScreenOn() {
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return mIsScreenOn;
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}
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/** Adds a listener for screen on changes */
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public void addListener(ScreenOnListener listener) {
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mListeners.add(listener);
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}
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/** Removes a previously added listener */
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public void removeListener(ScreenOnListener listener) {
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mListeners.remove(listener);
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}
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/**
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* Interface to listen for screen on changes
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*/
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public interface ScreenOnListener {
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/**
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* Called when the screen turns on/off
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*/
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void onScreenOnChanged(boolean isOn);
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/**
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* Called when the keyguard goes away
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*/
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default void onUserPresent() { }
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}
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}
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