Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2016 Peng fei Pan <sky@xiaopan.me>
 *
 * 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 android.graphics.drawable.Drawable;
import android.graphics.drawable.LayerDrawable;

public class Main {
    public static Drawable getLastDrawable(Drawable drawable) {
        if (drawable == null) {
            return null;
        }

        if (!(drawable instanceof LayerDrawable)) {
            return drawable;
        }

        LayerDrawable layerDrawable = (LayerDrawable) drawable;
        for (int i = layerDrawable.getNumberOfLayers() - 1; i >= 0; i--) {
            Drawable childDrawable = getLastDrawable(layerDrawable.getDrawable(i));
            if (childDrawable != null) {
                return childDrawable;
            }
        }
        return null;
    }
}