Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2014 Kartik Sharma 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.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;

import android.graphics.BitmapFactory;
import android.graphics.Canvas;

import android.graphics.Paint;

public class Main {
    /**
     * This is only used when the launcher shortcut is created.
     * 
     * @param bitmap The artist, album, genre, or playlist image that's going to
     *            be cropped.
     * @param size The new size.
     * @return A {@link Bitmap} that has been resized and cropped for a launcher
     *         shortcut.
     */
    public static final Bitmap resizeAndCropCenter(final Bitmap bitmap, final int size) {
        Bitmap blurbitmap = null;

        final int w = bitmap.getWidth();
        final int h = bitmap.getHeight();
        if (w == size && h == size) {
            return bitmap;
        }

        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        bitmap.compress(CompressFormat.PNG, 0 /*ignored for PNG*/, bos);
        byte[] bitmapdata = bos.toByteArray();
        ByteArrayInputStream bs = new ByteArrayInputStream(bitmapdata);

        try {
            final BitmapFactory.Options options = new BitmapFactory.Options();
            options.inSampleSize = 8;
            options.inJustDecodeBounds = true;
            blurbitmap = BitmapFactory.decodeStream(bs, null, options);
            options.inJustDecodeBounds = false;

        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (bs != null) {
                try {
                    bs.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }

        final float mScale = (float) size / Math.min(w, h);

        final Bitmap mTarget = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
        final int mWidth = Math.round(mScale * blurbitmap.getWidth());
        final int mHeight = Math.round(mScale * blurbitmap.getHeight());
        final Canvas mCanvas = new Canvas(mTarget);
        mCanvas.translate((size - mWidth) / 2f, (size - mHeight) / 2f);
        mCanvas.scale(mScale, mScale);
        final Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.DITHER_FLAG);
        mCanvas.drawBitmap(bitmap, 0, 0, paint);
        return mTarget;

    }
}