Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import android.graphics.Bitmap;

import android.graphics.Matrix;

public class Main {
    /**
     * Shrinks and a passed Bitmap.
     *
     * @param bm
     * @param maxLengthOfEdge
     * @return Bitmap
     */
    public static Bitmap shrinkBitmap(Bitmap bm, int maxLengthOfEdge) {
        return shrinkBitmap(bm, maxLengthOfEdge, 0);
    }

    /**
     * Shrinks and rotates (if necessary) a passed Bitmap.
     *
     * @param bm
     * @param maxLengthOfEdge
     * @param rotateXDegree
     * @return Bitmap
     */
    public static Bitmap shrinkBitmap(Bitmap bm, int maxLengthOfEdge, int rotateXDegree) {
        if (maxLengthOfEdge > bm.getWidth() && maxLengthOfEdge > bm.getHeight()) {
            return bm;
        } else {
            // shrink image
            float scale = (float) 1.0;
            if (bm.getHeight() > bm.getWidth()) {
                scale = ((float) maxLengthOfEdge) / bm.getHeight();
            } else {
                scale = ((float) maxLengthOfEdge) / bm.getWidth();
            }
            // CREATE CommonAsync MATRIX FOR THE MANIPULATION
            Matrix matrix = new Matrix();
            // RESIZE THE BIT MAP
            matrix.postScale(scale, scale);
            matrix.postRotate(rotateXDegree);

            // RECREATE THE NEW BITMAP
            bm = Bitmap.createBitmap(bm, 0, 0, bm.getWidth(), bm.getHeight(), matrix, false);

            matrix = null;
            System.gc();

            return bm;
        }
    }
}