packages/SystemUI/src/com/android/systemui/statusbar/notification/NotificationUtils.java

/*
 * Copyright (C) 2015 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License
 */

package com.android.systemui.statusbar.notification;

import android.widget.ImageView;

import com.android.internal.util.NotificationColorUtil;
import com.android.systemui.R;

/**
 * A util class for various reusable functions
 */
public class NotificationUtils {
    public static boolean isGrayscale(ImageView v, NotificationColorUtil colorUtil) {
        Object isGrayscale = v.getTag(R.id.icon_is_grayscale);
        if (isGrayscale != null) {
            return Boolean.TRUE.equals(isGrayscale);
        }
        boolean grayscale = colorUtil.isGrayscaleIcon(v.getDrawable());
        v.setTag(R.id.icon_is_grayscale, grayscale);
        return grayscale;
    }
}