Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2010 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.
 */

import android.graphics.Bitmap;

import android.graphics.Bitmap.Config;

import android.graphics.Canvas;

import android.graphics.Paint;

public class Main {
    public static Bitmap resizeAndCropCenterExt(Bitmap bitmap, int size, boolean recycle) {
        int w = bitmap.getWidth();
        int h = bitmap.getHeight();
        if (w == size && h == size)
            return bitmap;

        // scale the image so that the shorter side equals to the target;
        // the longer side will be center-cropped.
        float scale = (float) size / Math.min(w, h);

        int width = Math.round(scale * bitmap.getWidth());
        int height = Math.round(scale * bitmap.getHeight());
        if (width > height) {
            int largeSize = (int) (width <= size * 1.5 ? width : size * 1.5);
            Bitmap target = Bitmap.createBitmap(largeSize, size, getConfig(bitmap));
            Canvas canvas = new Canvas(target);
            canvas.translate((largeSize - width) / 2f, (size - height) / 2f);
            canvas.scale(scale, scale);
            Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.DITHER_FLAG);
            canvas.drawBitmap(bitmap, 0, 0, paint);
            if (recycle)
                bitmap.recycle();
            return target;
        } else {
            int largeSize = (int) (height <= size * 1.5 ? height : size * 1.5);
            Bitmap target = Bitmap.createBitmap(size, largeSize, getConfig(bitmap));
            Canvas canvas = new Canvas(target);
            canvas.translate((size - width) / 2f, (largeSize - height) / 2f);
            canvas.scale(scale, scale);
            Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.DITHER_FLAG);
            canvas.drawBitmap(bitmap, 0, 0, paint);
            if (recycle)
                bitmap.recycle();
            return target;
        }
    }

    private static Config getConfig(Bitmap bitmap) {
        Config config = bitmap.getConfig();
        if (config == null) {
            config = Config.ARGB_8888;
        }
        return config;
    }
}