Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*******************************************************************************
 * Copyright 2012-present Pixate, Inc.
 * 
 * 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.
 ******************************************************************************/

import java.util.Arrays;

import android.graphics.drawable.Drawable;
import android.graphics.drawable.DrawableContainer;
import android.graphics.drawable.DrawableContainer.DrawableContainerState;

public class Main {
    /**
     * Check if two Drawables are equal. A regular check for a Drawable equals
     * just checks for the instance reference, while this check is doing a
     * deeper equals when dealing with {@link DrawableContainer} instances. In
     * these cases, the method will run equals on each of the child drawables in
     * the container (order is importance as well).
     * 
     * @param d1
     * @param d2
     * @return <code>true</code> if the drawables are equal, <code>false</code>
     *         otherwise.
     */
    public static boolean isEquals(Drawable d1, Drawable d2) {
        if (d1 == d2) {
            return true;
        }
        if (d1 == null || d2 == null) {
            return false;
        }
        if (d1 instanceof DrawableContainer && d2 instanceof DrawableContainer) {
            // Try to match the content of those containers
            DrawableContainerState containerState1 = (DrawableContainerState) ((DrawableContainer) d1)
                    .getConstantState();
            DrawableContainerState containerState2 = (DrawableContainerState) ((DrawableContainer) d2)
                    .getConstantState();

            return Arrays.equals(containerState1.getChildren(), containerState2.getChildren());
        }
        return d1.equals(d2);
    }
}