Sunny Goyal
8392c823a9
SystemUiController manages various system UI flags in priorty order and merges all the states before applying the syste flags. Fixing WallpaperColors when it was not handing wallpaper change properly in some cases Change-Id: I915442818e7888c97c81f63c8ea9f3c13053eb2c
80 lines
2.7 KiB
Java
80 lines
2.7 KiB
Java
/*
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* Copyright (C) 2017 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 android.view.View;
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import android.view.Window;
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import com.android.launcher3.Utilities;
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/**
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* Utility class to manage various window flags to control system UI.
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*/
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public class SystemUiController {
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// Various UI states in increasing order of priority
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public static final int UI_STATE_BASE_WINDOW = 0;
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public static final int UI_STATE_ALL_APPS = 1;
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public static final int UI_STATE_WIDGET_BOTTOM_SHEET = 2;
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public static final int FLAG_LIGHT_NAV = 1 << 0;
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public static final int FLAG_DARK_NAV = 1 << 1;
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public static final int FLAG_LIGHT_STATUS = 1 << 2;
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public static final int FLAG_DARK_STATUS = 1 << 3;
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private final Window mWindow;
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private final int[] mStates = new int[3];
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public SystemUiController(Window window) {
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mWindow = window;
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}
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public void updateUiState(int uiState, boolean isLight) {
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updateUiState(uiState, isLight
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? (FLAG_LIGHT_NAV | FLAG_LIGHT_STATUS) : (FLAG_DARK_NAV | FLAG_DARK_STATUS));
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}
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public void updateUiState(int uiState, int flags) {
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if (mStates[uiState] == flags) {
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return;
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}
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mStates[uiState] = flags;
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int oldFlags = mWindow.getDecorView().getSystemUiVisibility();
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// Apply the state flags in priority order
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int newFlags = oldFlags;
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for (int stateFlag : mStates) {
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if (Utilities.isAtLeastO()) {
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if ((stateFlag & FLAG_LIGHT_NAV) != 0) {
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newFlags |= View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR;
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} else if ((stateFlag & FLAG_DARK_NAV) != 0) {
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newFlags &= ~(View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR);
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}
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}
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if ((stateFlag & FLAG_LIGHT_STATUS) != 0) {
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newFlags |= View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
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} else if ((stateFlag & FLAG_DARK_STATUS) != 0) {
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newFlags &= ~(View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
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}
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}
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if (newFlags != oldFlags) {
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mWindow.getDecorView().setSystemUiVisibility(newFlags);
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}
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}
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}
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