Android Bitmap Resize resizeAndCropCenter(Bitmap bitmap, int size, boolean recycle)

Description

resize And Crop Center

License

Apache License

Declaration

public static Bitmap resizeAndCropCenter(Bitmap bitmap, int size,
            boolean recycle) 

Method Source Code

//package com.java2s;
/*/*from  w w w .j ava2  s.  c  o  m*/
 * 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.Canvas;

import android.graphics.Paint;

public class Main {
    public static Bitmap resizeAndCropCenter(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);

        Bitmap target = Bitmap.createBitmap(size, size, getConfig(bitmap));
        int width = Math.round(scale * bitmap.getWidth());
        int height = Math.round(scale * bitmap.getHeight());
        Canvas canvas = new Canvas(target);
        canvas.translate((size - 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;
    }

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

Related

1. createFitXYBitmap(Bitmap srcBitmap, int dstWidth, int dstHeight, boolean tryRecycleSource)
2. getSampledBitmap(String filePath, int reqWidth, int reqHeight)
3. manageBitmapRotatio(int photoW, int photoH, Bitmap bitMap, int rotation)
4. readBitmapAutoSize(String filePath, int outWidth, int outHeight)
5. resize(Bitmap bitmap, int newWidth, int newHeight)
6. resizeAndCropCenter(final Bitmap bitmap, final int size)
7. resizeBitmap(Context context, int resId, int w, int h)
8. resizeBitmapByScale(Bitmap bitmap, float scale, boolean recycle)
9. resizeDownBySideLength(Bitmap bitmap, int maxLength, boolean recycle)