Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

public class Main {

    public static Bitmap decodeSampledBitmapFromFile(byte[] data, int reqWidth, int reqHeight) {
        BitmapFactory.Options options = new BitmapFactory.Options();
        // First decode with inJustDecodeBounds=true to check dimensions  
        options.inJustDecodeBounds = true;
        BitmapFactory.decodeByteArray(data, 0, data.length, options);

        // Calculate inSampleSize  
        options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);

        // Decode bitmap with inSampleSize set  
        options.inJustDecodeBounds = false;
        return BitmapFactory.decodeByteArray(data, 0, data.length, options);
    }

    public static int calculateInSampleSize(BitmapFactory.Options options, float reqWidth, float reqHeight) {
        // Raw height and width of image  
        int height = options.outHeight;
        final int width = options.outWidth;
        int inSampleSize = 1;

        if (reqWidth <= 0 || reqHeight <= 0)
            return inSampleSize;

        if (height > reqHeight || width > reqWidth) {
            if (width > height) {
                inSampleSize = Math.round(height / reqHeight);
            } else {
                inSampleSize = Math.round(width / reqWidth);
            }
        }
        return Math.round(height / reqHeight);
    }
}