Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.graphics.BitmapFactory;
import android.graphics.BitmapFactory.Options;

public class Main {
    public static Bitmap decodeSampleBitmap(String path, float reqWidth, float reqHeight) {
        Bitmap bm = null;
        Options opts = new Options();
        opts.inJustDecodeBounds = true;
        opts.inPreferredConfig = Config.RGB_565;
        BitmapFactory.decodeFile(path, opts);
        opts.inSampleSize = calculateInSampleSize(opts, reqWidth, reqHeight);
        opts.inJustDecodeBounds = false;
        bm = BitmapFactory.decodeFile(path, opts);
        return bm;
    }

    public static int calculateInSampleSize(Options options, float reqWidth, float reqHeight) {
        final int height = options.outHeight;
        final int width = options.outWidth;
        int inSampleSize = 1;
        if (height > reqHeight || width > reqWidth) {
            final int halfHeight = height / 2;
            final int halfWidth = width / 2;
            while ((halfHeight / inSampleSize) > reqHeight || (halfWidth / inSampleSize) > reqWidth) {
                inSampleSize *= 2;
            }
        }
        return inSampleSize;
    }
}