design/src/android/support/design/widget/ViewUtils.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 android.support.design.widget;

import android.graphics.PorterDuff;
import android.os.Build;

class ViewUtils {

    static final ValueAnimatorCompat.Creator DEFAULT_ANIMATOR_CREATOR
            = new ValueAnimatorCompat.Creator() {
        @Override
        public ValueAnimatorCompat createAnimator() {
            return new ValueAnimatorCompat(Build.VERSION.SDK_INT >= 12
                    ? new ValueAnimatorCompatImplHoneycombMr1()
                    : new ValueAnimatorCompatImplGingerbread());
        }
    };

    static ValueAnimatorCompat createAnimator() {
        return DEFAULT_ANIMATOR_CREATOR.createAnimator();
    }

    static boolean objectEquals(Object a, Object b) {
        return (a == b) || (a != null && a.equals(b));
    }

    static PorterDuff.Mode parseTintMode(int value, PorterDuff.Mode defaultMode) {
        switch (value) {
            case 3:
                return PorterDuff.Mode.SRC_OVER;
            case 5:
                return PorterDuff.Mode.SRC_IN;
            case 9:
                return PorterDuff.Mode.SRC_ATOP;
            case 14:
                return PorterDuff.Mode.MULTIPLY;
            case 15:
                return PorterDuff.Mode.SCREEN;
            default:
                return defaultMode;
        }
    }

}