Zak Cohen
079003b44d
This reverts commit 8c383f97e4.
Reason for revert: ScrimView is used in multiple places, Overview is broken by this change.
Change-Id: Ie395e2d94feaca4c9365bb5da68e9dc219990e03
88 lines
2.8 KiB
Java
88 lines
2.8 KiB
Java
/*
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* Copyright (C) 2018 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.views;
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import static com.android.launcher3.util.SystemUiController.UI_STATE_SCRIM_VIEW;
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import android.content.Context;
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import android.graphics.Rect;
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import android.util.AttributeSet;
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import android.view.View;
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import androidx.core.graphics.ColorUtils;
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import com.android.launcher3.Insettable;
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import com.android.launcher3.Launcher;
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import com.android.launcher3.R;
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import com.android.launcher3.util.SystemUiController;
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import com.android.launcher3.util.Themes;
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/**
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* Simple scrim which draws a flat color
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*/
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public class ScrimView extends View implements Insettable {
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private static final float STATUS_BAR_COLOR_FORCE_UPDATE_THRESHOLD = 0.9f;
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private final boolean mIsScrimDark;
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private SystemUiController mSystemUiController;
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public ScrimView(Context context, AttributeSet attrs) {
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super(context, attrs);
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mIsScrimDark = ColorUtils.calculateLuminance(
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Themes.getAttrColor(context, R.attr.allAppsScrimColor)) < 0.5f;
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setFocusable(false);
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}
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@Override
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public void setInsets(Rect insets) { }
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@Override
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public boolean hasOverlappingRendering() {
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return false;
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}
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@Override
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protected boolean onSetAlpha(int alpha) {
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updateSysUiColors();
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return super.onSetAlpha(alpha);
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}
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@Override
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protected void onVisibilityChanged(View changedView, int visibility) {
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super.onVisibilityChanged(changedView, visibility);
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updateSysUiColors();
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}
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private void updateSysUiColors() {
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// Use a light system UI (dark icons) if all apps is behind at least half of the
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// status bar.
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boolean forceChange =
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getVisibility() == VISIBLE && getAlpha() > STATUS_BAR_COLOR_FORCE_UPDATE_THRESHOLD;
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if (forceChange) {
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getSystemUiController().updateUiState(UI_STATE_SCRIM_VIEW, !mIsScrimDark);
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} else {
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getSystemUiController().updateUiState(UI_STATE_SCRIM_VIEW, 0);
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}
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}
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private SystemUiController getSystemUiController() {
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if (mSystemUiController == null) {
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mSystemUiController = Launcher.getLauncher(getContext()).getSystemUiController();
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}
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return mSystemUiController;
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}
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}
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